Três componentes de um ecossistema ferroviário conectado

Three components of a connected rail eco-system

Com os 200 bilhões de objetos da Internet das Coisas (IoT) que a humanidade tem hoje1, a conectividade está incorporada em todos os aspectos de nossas vidas. Quando se trata de conectividade no setor de transporte, os veículos rodoviários como carros, caminhões e ônibus ganham destaque. Porém, poderíamos pensar se os trens não seriam melhores candidatos para a adoção de soluções conectadas, uma vez que alguns aspectos da operação dos trens são menos sofisticados.

Por exemplo, operar um trem individual, em comparação com a operação de veículos rodoviários, apresenta menos variáveis em termos de outros veículos em movimento nos trilhos e diferentes rotas a serem tomadas. Os trens se movem em trilhos definidos e em uma direção, geralmente sem um número significativo de cruzamentos. Por outro lado, a criação de um ecossistema ferroviário conectado vai além dos trens individuais. Neste artigo, você pode descobrir quais são os principais componentes de um ecossistema ferroviário conectado e quais são as perspectivas futuras para cada um deles.

Nº 1: Conectividade no nível do ativo; locomotivas conectadas

Embora a aparência física das locomotivas não tenha mudado drasticamente na última década, o que está por trás dessa primeira aparência vem mudando constantemente. As modernas locomotivas atuais incluem centenas de sensores. Esses sensores realizam uma variedade de tarefas, desde rastrear atributos internos, como nível de consumíveis, até atributos externos, como velocidade e direção do vento.

Além disso, muitas dessas soluções conectadas vão além do monitoramento reativo. For instance, PrevenTech® Rail, the newest remote engine monitoring solution by Cummins, delivers proactive recommendations that allow customers to increase equipment availability, improve safety, and enhance operational efficiency. 

O futuro da conectividade em nível de ativo depende amplamente da integração de inteligência artificial e aprendizado de máquina mais fortes à rede de sensores já existente. Essa integração tornará cada locomotiva capaz de prever problemas futuros e, em seguida, executar atualizações over-the-air ou programar a manutenção preventiva necessária.

Three components of a connected rail eco-system

Nº 2: Conectividade no nível do sistema; operações conectadas

No nível do sistema, o foco passa dos componentes individuais, como locomotivas e vagões, para o gerenciamento de toda a rede ferroviária e da frota, seja ela voltada para carga ou para passageiros. Isso inclui uma melhor utilização do equipamento ferroviário por meio da programação e integração da conectividade estabelecida por meio de diferentes elementos da rede, como locomotivas, estações e trilhos.

O futuro da conectividade no nível do sistema está na capacidade de aproveitar os dados que cada equipamento conectado aporta para maximizar a eficiência e a segurança e, ao mesmo tempo, reduzir custos. Por exemplo, os sensores em uma estação poderiam monitorar o número de passageiros que estão esperando e comunicar essa informação ao trem que se aproxima. Ao mesmo tempo, um terceiro sensor localizado entre o trem que está chegando e a estação poderia comunicar um evento meteorológico, solicitando que a estação envie outro trem. Neste exemplo, dados de três diferentes ativos podem ser aproveitados em tempo real. O principal elemento para que isso funcione de forma eficiente serão as tecnologias de rede capazes de aproveitar os dados coletados e os recursos de computação capazes de processar os dados para criar recomendações acionáveis.

Nº 3: conectividade intermodal; meios de transporte conectados

Quer seja voltado para passageiros ou carga, o transporte ferroviário geralmente é associado a outros modos de transporte. Uma pessoa pode precisar pegar um ônibus para ir à estação de trem, ou os contêineres transportados pelos trens até um depósito podem precisar ser levados por caminhões até a próxima parada.

A conectividade intermodal envolve a integração de redes de transporte não ferroviárias adjacentes com as operações conectadas de uma rede ferroviária. Estas são as boas notícias: grande parte dessa rede não ferroviária (aérea, marítima e rodoviária) também avançou na construção de suas próprias operações conectadas dentro de seus sistemas.

O futuro da conectividade intermodal não será apenas impulsionado pela tecnologia, mas também pela colaboração. Ao contrário da conectividade em nível de sistema e ativos, as operadoras ferroviárias transcenderão os limites de seus negócios e construirão colaborações mais profundas com outras empresas de transporte para por em prática a conectividade intermodal.

O futuro das ferrovias é conectado, e uma combinação de novas tecnologias, habilidades e parcerias estabelece o caminho para esse futuro conectado. A boa notícia para as empresas ferroviárias é a presença de parceiros com os quais podem colaborar, como a Cummins Inc., que pode trazer os aprendizados sobre conectividade de muitos outros mercados de transporte para o setor ferroviário.

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Referências: 1 Intel. (n.d.). A Guide to Internet of Things [Infográfico]. Recuperado do https://www.intel.com/

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Aytek Yuksel - Cummins Inc

Aytek Yuksel

Aytek Yuksel é líder em marketing de conteúdo da Cummins Inc., com foco em mercados de sistemas de energia. A aytek ingressou na empresa em 2008. Desde então, ele trabalhou em várias funções de marketing e agora traz os aprendizados de nossos principais mercados, desde os mercados industriais até os residenciais. Aytek vive em Minneapolis, Minnesota, com sua esposa e dois filhos.

Cibersegurança da infraestrutura elétrica e da alimentação das instalações

Cybersecurity of electric infrastructure and facility power

Is dependence to electric power the Achilles heel for businesses against the emerging cybersecurity threats? 

Cybersecurity threats to electric infrastructure continues to be a top-of-mind topic for many business executives. From healthcare and data center facilities to commercial and industrial buildings, businesses depend on electric power to continue their operations. Moreover, this dependence has been further amplified with the greater adoption of connectivity and increased interdependence of sub-systems and processes within a facility or business.

For those that oversee these facilities and power generation equipment, being future-ready requires increased cybersecurity. This is a challenge. At Cummins Inc., we make our partners’ challenges our challenges; make their goals, our goals. 

To help our partners in these industries be future-ready, we have asked three experts their take on the cybersecurity of electric infrastructure. These three perspectives aim to provide you with diverse viewpoints on how to strengthen your facilities' cybersecurity.

How do cybersecurity gaps threaten our electric infrastructure?

Professor Alan Woodward, an internationally renowned computer security expert, offered his perspective on this question. Alan has particular expertise and current research interests in cyber security, covert communications, forensic computing and image processing. Alan is currently a Visiting Professor at Surrey Centre for Cyber Security, University of Surrey. You can follow Alan on Twitter at @ProfWoodward.

Here is Alan’s take on cybersecurity and infrastructure. 

There is more computing power in embedded systems today than is used on desktop computers, yet it goes largely untended. As soon as any system is made "intelligent" it becomes a target for hackers. Being embedded and untended, these systems go on for years without the upgrades that are necessary to keep them secure. Moreover, remote monitoring has moved from private networks to using the internet as the means for communications. Put these together and you have a target that is at high risk of remote attack.

Anyone looking after systems that have any embedded computing power needs to manage that computing infrastructure just as if it was in a data center hosting thousands of websites. It is even more difficult in infrastructure, as some vendors don't always keep their software updated. We've seen examples of scanners in hospitals that could be upgraded to escape ransomware, yet the scanner manufacturer didn't support the latest software. Anyone managing these devices needs to look at the horizon and think "what if."

Choosing your equipment vendors has also taken a different dimension. It's no longer just about who has what certification, meets which standard, or has the best hardware maintenance operation. Now, you need to explore how the vendors keep the software embedded in your equipment up to date and respond to any cybersecurity threats.

Those managing infrastructure have the worst of both worlds. Hackers are beginning to see them as the soft spot for attacks, and not all equipment manufacturers see software security as part of their core business.

It's vital to remember that it's not just the embedded software that can cause infrastructure issues. You need to be aware of the interdependency between software that directly controls infrastructure and other systems. For example, if a payments system is held to ransom, could your pipeline continue to operate even though the direct control systems were fully functional?

How to prevent cybersecurity threats that could result in power outages?

We have asked this question to Kenneth Holley. Kenneth founded Silent Quadrant – a Washington, D.C.-based digital protection agency and consulting practice – in 1993. Over the past 28 years, Silent Quadrant has delivered digital security, digital transformation, and risk management to the world's most influential government affairs firms, associations, and businesses. With a particular focus on infrastructure security and threat modeling, Kenneth has assisted many clients ensure brand and profile security. You can follow Kenneth on Twitter at @KennethHolley.

Let’s look at Kenneth’s perspective on preventing cybersecurity threats that could result in power outages.

As facilities technology continues its rapid emergence, facility managers and operators have become increasingly reliant on integrated technologies and iot. This convergence of IT and operational technology (OT) underscores the critical role of facility executives. This critical role is to ensure systems security, resiliency, and facility business continuity.

Facilities need to understand very clearly that there is a new dynamic. Intelligent organizations leverage connected sensors, facilities automation systems, and actionable intelligence to optimize operations and business continuity. This new dynamic means that the threats are now everywhere. This establishes a new level of criticality securing those connected systems designed to prevent power outages.

I encourage all facilities, as part of a broader security assessment, to immediately focus on the following Center for Internet Security (CIS) controls:

  • Secure Configuration of Enterprise Assets and Software (CIS Control 4): Establish and maintain the secure configuration of enterprise assets (end-user devices, network devices, non-computing/iot devices, and servers) and software.
  • Account Management (CIS Control 5): Use processes and tools to assign and manage authorization to credentials for accounts. This includes user and administrator accounts, as well as service accounts.
  • Access Control (CIS Control 6): Use processes and tools to create, assign, manage, and revoke access credentials and privileges for user, administrator, and service accounts.
  • Security Awareness and Skills Training (CIS Control 14): Establish and maintain a security awareness program. The aim here is to influence behavior among the workforce to be security conscious and properly skilled to reduce cybersecurity risks.
The 18 Center for Internet Security Controls

Visibility of all assets within your facility is critical. You cannot hope to protect and provide resilience for what you cannot see and control. At the end of the day, integrated and interconnected technologies are designed to enhance overall business continuity. This requires a renewed operational approach to security.

Cybersecurity in a product’s design and the complete life-cycle

Dwayne Smith brings us the third perspective on this topic. Dwayne has extensive experience in cybersecurity and the adoption of technologies that support a multitude of applications. Those applications also include power generation and electrical distribution. As an engineer in the fields of nuclear and cybersecurity, he has supported initiatives across multiple customers within the Department of Defense, intelligence community, telecommunication, and other commercial business segments. In his current role, Dwayne works within industries that support data centers, manufacturing, marine, rail, and automotive. Dwayne is currently the Global Cybersecurity Engineering Director at Cummins.

Industries have and will continue to transform the way they design and build solutions. The introduction of new techniques to innovate and deliver products in a more efficient manner account for cybersecurity early in those processes.

These new techniques rely on how we think about cybersecurity as a priority within the design and manufacturing processes that produce these new products. This requires cybersecurity to be more than a concept that is thought about as a discrete and separate discipline.
Cybersecurity is now something embedded in a product's lifecycle. Having cybersecurity embedded in how you build products eliminates the need for bolt on protections or to surround the product with protective technologies. These add-ons can be costly to manage, may hamper the performance of a product, or require the early retirement of a product.

Taking the proactive step to include cybersecurity early in these processes ensures that the product can be resilient over time. This approach can also increase the service time and life of a product so that it can adapt to evolving cyber threats. This reduces the risk impact and ultimately moves cybersecurity from a concept to a measurable quality metric.

The traditional ways of how systems are engineered, tested, and operated already consider the benefits of software and firmware that deliver the adoption of desired features. 

Now, how these systems are engineered, tested, and operated also need to consider the data they collect or generate. That data is key to improving and sustaining products for both the product owner and the product supplier. How to retrieve that data for use, whether through a remote connection across the internet or from within a larger enterprise network requires that cybersecurity be considered end to end during a products life cycle.

Inscreva-se abaixo para o Energy IQ para receber insights focados em energia em mercados que vão de data centers e instalações de serviços de saúde, para escolas e instalações de fabricação, e tudo mais além. Para saber mais sobre as soluções de energia que a Cummins oferece, acesse nossa página .

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Aytek Yuksel - Cummins Inc

Aytek Yuksel

Aytek Yuksel é líder em marketing de conteúdo da Cummins Inc., com foco em mercados de sistemas de energia. A aytek ingressou na empresa em 2008. Desde então, ele trabalhou em várias funções de marketing e agora traz os aprendizados de nossos principais mercados, desde os mercados industriais até os residenciais. Aytek vive em Minneapolis, Minnesota, com sua esposa e dois filhos.

Tipos de cogeração usando turbinas, motores e células de combustível

Types of cogeneration using turbines, engines, and fuel cells

Cogeneration is a popular power generation technology. While the working principles of cogeneration remain similar, there are various types of cogeneration. You can find cogeneration applications that use gas turbines, internal combustion engines or even fuel cells. 

Before, we get into the details, let’s look at what cogeneration is. 

What is cogeneration?

Cogeneration power plants and power generators generate electricity while ensuring that the heat created in the process is not wasted. 

Traditional nuclear power plants and fossil-fuel burning power plants convert the energy present in their fuel—uranium, coal, or natural gas—into electricity. In the process, they lose a significant portion of that energy in the form of waste heat. Even highly efficient combined cycle power plants experience heat losses that amount to at least 40% of the energy consumed.

The primary pathway for heat losses at power plants that rely on a steam cycle is through their condenser. Steam power plants work by boiling water and powering a turbogenerator group with the resulting steam. The job of the condenser-a large heat exchanger-is to convert the spent steam back to a liquid state. This is done by extracting the residual energy the steam contains using cold water. The cold water is heated in the condenser and is usually released into a river or ocean, or recycled in a cooling tower. Large power plants release so much hot water in this manner that they can increase the temperature of surrounding bodies of water. This sometimes impacts the local plant and animal life. Did you know this is why Florida manatees seek out the waters surrounding coastal power plants during the cold season?

Why not use all that hot water to heat nearby homes and businesses instead of letting it go down the drain? 

This is what cogeneration power plants do. Combined heat and power is not a new idea. You can find cogeneration applications supplying steam and hot water to residential complexes, university, and hospital campuses, and other facilities. 

In some countries, particularly Eastern European countries and former Soviet Republics, district heating systems supplied by large utility-operated power plants are common. Likewise, on a smaller scale, a common feature among university campuses is a network of steam tunnels that supply heat across the campus from a central boiler facility. Many universities find it economical to replace an aging boiler with a modern cogeneration unit that provides both heat and electricity.

Traditional power plants without cogeneration can only use, at the very best, about 60% of the energy they consume. With cogeneration, up to 95% of the energy consumed can be used productively for electricity and heating/cooling.

Steam power plants rely on a condenser to return the steam that they generator to a liquid state. To achieve this, the consenser receives a stream of cold cooling water and returns a stream of warm water. In traditional power plants, the warm cooling water is discharged into a river or cooled again in a cooling tower. In cogeneration power plants, the warm cooling water is piped to homes and businesses to provide heat.
Steam power plants rely on a condenser to return the steam that they generator to a liquid state. To achieve this, the consenser receives a stream of cold cooling water and returns a stream of warm water. In traditional power plants, the warm cooling water is discharged into a river or cooled again in a cooling tower. In cogeneration power plants, the warm cooling water is piped to homes and businesses to provide heat.

We discussed heat recovery at traditional steam power plants. Meanwhile, cogeneration applications are possible at other types of power plants as well. Here are some of the main ones:

Cogeneration plants with gas turbines

Gas turbines are large, stationary jet engines that can be used for electricity generation. 

Modern gas turbines are highly efficient and flexible. They are also rapidly replacing coal fired power plants in the United States.

Gas turbines discharge a large volume of very hot gases as exhaust. Energy within this exhaust can be recovered in a component known as a heat recovery steam generator, or HRSG. HRSGs can recover so much heat that they are frequently used to boil water to supply a steam turbine and generate more electricity.

In other cases, that heat can be used to boil water for cogeneration applications. The steam that HRSGs produce is very hot and thus suitable for many industrial processes requiring high quality steam. Power plants located close to industrial process steam users can generate additional revenue by supplying steam during periods of low electricity demand.

Cogeneration generators using internal combustion engines

Internal combustion engines are popular in a variety of power generation applications. These include:

  • Behind-the-meter applications, where they can be used to reduce a user’s overall energy purchases as well as peak electricity demand charges.
  • On-grid applications, where their inherent flexibility features are highly advantageous. 

Internal combustion engines can operate on a variety of fuels. These include natural gas, biogas, and net-CO2 free fuels such as biodiesel. 

Just like automobile engines, internal combustion engines used for power generation produce a lot of heat, and thus need to be cooled. Cogeneration systems include heat exchangers designed to recover heat from, and provide cooling for, many components in the engine. These components include the lubricating oil system, the engine block itself, and the engine exhaust.

There have been advancements in lean-burn gas reciprocating technology, digital controls, and heat exchangers. These advancements have made internal combustion engine cogeneration a practical and economical option for applications with power needs as small as 300 kWe. This has opened the possibility of installing on-site cogeneration for small and medium-sized users. These include greenhouses, hotels, swimming pools, and more.

Cogeneration using fuel cells

Fuel cells are an extremely efficient, clean, and cutting-edge power generation technology. Did you know they also produce a significant quantity of waste heat? 

Fuel cells can be easily coupled with a heat recovery unit to provide hot water. In principle, fuel cell cogeneration can be practical at any scale, including in residential applications. Imagine if your home water heater also generated electricity. Currently, residential fuel cell cogeneration remains too expensive for broad adoption.

Meanwhile, many fuel cell cogeneration installations in the United States are at malls, big box stores, office buildings and universities.

What is trigeneration?

Trigeneration technology takes cogeneration one step further by adding the option to provide cooling in addition to heat and electricity. 

The cooling feature is achieved by the addition of a device known as an absorption chiller. Absorption chillers are refrigeration units. They rely on a source of heat to provide the energy needed for the cooling process. The absorption refrigeration process was widely used in the first half of the previous century. Today, it is replaced by the vapor compression process, employed in most home refrigerators and air conditioning units.

These units rely on a mechanical compressor powered by an electric motor, rather than on a heat source as is the case with absorption chillers. Today, absorption chillers are mostly used in trigeneration applications. They are also used in portable coolers and RV refrigeration units.

Trigeneration can greatly improve the economics of a cogeneration system in climates where heating is in lesser demand during the summer months. Instead of providing unwanted heat, a trigeneration system can provide, with the addition an absorption chiller, much needed cooling. This then further reduces energy costs and, in some cases, eliminates the need for a separate air conditioning system.

Interested to learn more about cogeneration? You might also like:

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Cummins Inc.

A Cummins é líder mundial em energia que projeta, fabrica, vende e comercializa motores diesel e de combustível alternativo de 2,8 a 95 litros, grupos geradores elétricos movidos a diesel e alternativos de 2,5 a 3, 500 kW, bem como componentes e tecnologia relacionados. A Cummins atende a seus clientes por meio de sua rede de 600 instalações de distribuidores independentes e de propriedade da empresa e mais de 7, 200 locais de revendedores em mais de 190 países e territórios.

Exemplos de cogeração em diversos setores

Cogeneration examples across industries

Cogeneration is a well-established power generation technology that is experiencing a resurgence in interest all over the world.

Recent developments have made investing in a cogeneration system a no-brainer for many facility managers seeking to reduce their energy bills and minimize their carbon footprint. These developments include improvements in cogeneration technology, changes in the regulatory environment, and government incentives.

Cogeneration systems are common in many sectors. These include hospitals, nursing homes, universities and a wide range of industrial sectors that involve energy intensive processes. Cement, pulp and paper, iron and steel are some of these industrial sectors. Beyond these traditional cogeneration use-cases, small scale cogeneration recently became an attractive option for smaller energy consumers. This is due to the improvements in heat exchanger and engine technologies. These smaller scale applications include greenhouses, swimming pools and office buildings.

In order to maximize the economic benefits of an investment in a cogeneration system, it is important to carefully assess the energy needs of the facility and evaluate all of the available options. 

  • Should the cogeneration system cover all or part of the facility’s electricity needs? 
  • Is it possible to sell excess electricity generated
  • Does it make sense to include solar panels in the investment? 
  • Should cooling also be provided? (Cogeneration systems that also provide cooling are known as trigeneration systems). 

Deciding on the right cogeneration configuration depends on finding a balance between a few parameters. A balance that achieves the best economics, maximizes tax credits and incentives, and incorporates other considerations. Other considerations include space for the plant, environmental regulations, fuel choice, and the need for reliability of supply.

Most paper mill operate a cogeneration power plant as an inherent component of the paper-making process. In an early step of the paper-making process, wood chips are cooked in a deviced known as a digester. Digester produce wood pulp, which is used in the subsequent steps of the process, and a black sticky substance known as black liquor. The black liquor is concentrated and then burnt in a recovery boiler, producing steam which is used in various steps of the overall process, including the digestors, as well as other components. The process usually produces enough black liquor that there is sufficient steam left after the needs of the process are met to also generate electricity. One specfic aspect of the recovery process at paper mills is that black liquor combustion residues--the ashes, essentially--primarily consist of an inorganic chemical which is recycled in the digestor after treatment. This integrated cogeneration system is essential to the operation of most modern paper mills.
Most paper mill operate a cogeneration power plant as an inherent component of the paper-making process. In an early step of the paper-making process, wood chips are cooked in a deviced known as a digester. Digester produce wood pulp, which is used in the subsequent steps of the process, and a black sticky substance known as black liquor. The black liquor is concentrated and then burnt in a recovery boiler, producing steam which is used in various steps of the overall process, including the digestors, as well as other components. The process usually produces enough black liquor that there is sufficient steam left after the needs of the process are met to also generate electricity. One specfic aspect of the recovery process at paper mills is that black liquor combustion residues--the ashes, essentially--primarily consist of an inorganic chemical which is recycled in the digestor after treatment. This integrated cogeneration system is essential to the operation of most modern paper mills.

Cogeneration examples in schools, colleges and universities

Educational establishments lend themselves to cogeneration projects, as they require a significant amount of heat as well as electricity. Learning must take place in a comfortable environment, and that comfort costs money. Money that schools and universities could otherwise spend elsewhere; this makes savings on energy costs keenly sought. A typical example is Clark University, in Worcester, Massachusetts, where Cummins Inc. recently upgraded a cogeneration system.

The university was looking to minimize its electricity purchase from the local utility. The university needed the new gas generator set to meet the latest emissions standards and had to install everything in the space occupied by the old boiler. Cummins supplied a C2000N6C 2 MWe QSV91G lean burn gas generator. The generator provides power and heat to the entire campus through the existing system of steam tunnels.

The new generator can cover all of the university's electrical and heat needs. The University can also export excess electricity to the power grid, resulting in a welcomed revenue stream. The Cummins QSV91G gas generator also features Cummins Power Command controls. The control system allows the university to reduce operations and maintenance costs by remotely monitoring the generator's performance.

Cogeneration examples in district heating 

Scandinavia, Russia and Eastern Europe have long used cogeneration as a means to heat apartment blocks in district heating schemes. Excess heat from local power stations provides the surrounding community with heat via an extensive network of steam pipes. In colder climates, hot water has even been piped under roads to keep them snow-free in winter.

Cogeneration is an efficient option for multi-family residential buildings, where the heating system is communal. 

District heating schemes remain an attractive option to this day. They are an effective way to reduce the carbon footprint of entire neighborhoods.

The Hongqiao Business District in the west of Shanghai, for example, covers an area of about 86 km2. The district is a showcase of low-carbon living, featuring a vast cogeneration project. Phase one of the project covers 1.43 km2. It addresses all the heating cooling and part of the power needs of the area, which is home to an international trade center and a high-end business district. 

In this project Cummins is supplying a complete power solution centered on eight silenced C1400N5C 1400kWe QSK60G lean-burn gas generator sets; there are also absorption chillers and auxiliary gas boilers. The combined cooling, heating and power model will meet the entire cooling and heating load of the business district, and part of its electrical load as well.

Cogeneration examples in hospitals and nursing homes

Hospitals and nursing homes are big users of electricity, heating, and cooling. This makes them ideal for cogeneration. Additionally, hospitals need standby power. This is because any interruption to the electricity supply could risk loss of life. Therefore, onsite power generation is a consideration for all hospitals. 

Standby power can be woven into a cogeneration scheme. This ensures the hospital can have the most cost-effective option to meet its energy needs. Moreover, it also ensures the power supply is always reliable. A mix of utility and independent electricity supplies is a desirable option for critical services, making maintenance shutdowns easier.

An example would be Australia’s Royal Children’s Hospital; in this project, Cummins installed a trigeneration system. Within this system, natural gas generators provide electricity, heating and cooling, and diesel generators provide critical standby power. The trigeneration system supplies baseload power, heating, and cooling via an absorption chiller. Alongside, the grid supplies the peak electricity. In case of a power outage, the diesel generators can kick in to work in tandem with the gas generators covering life safety loads ensuring power continuity. 

Key to the choice was Cummins’ ability to integrate the generators rather than having separate electrical systems. As one of Australia’s greenest hospitals, the reduction in CO2 emissions inherent in cogeneration was also a major factor in determining the specification of the system.

Cogeneration examples in industrial plants

The case for cogeneration in industry is strong, as many industrial processes require steam and/or heat. In addition, many industries produce waste gases. Those gases are increasingly the focus of environmental legislation. Utilizing these gases to fuel the cogeneration plant is a win-win solution.

One such example is the Columbus Water Works, where biogas generated as a by-product of wastewater treatment was used as a fuel source to run the cogeneration plant. Cummins installed two 1.75 MWe C1750 N6C QSV91 dual-fuel lean-burn gas generator sets. These power generators are able to run on either biogas or natural gas, as required.

Similarly, at the Syracuse, Utah, Wastewater Treatment Plant, Cummins upgraded gas generators and provided a cogeneration solution. The new solution eliminated the environmental concerns associated with the plant’s gas flaring. The cogeneration system provided useful heat for the digesters and hydronic heaters operating on site.

In other industrial situations, reliability of the electricity supply is a concern. This is especially applicable in the developing world. Factories working to complete orders cannot afford to have frequent outages due to unreliable local grids.

Cummins installed a trigeneration system at a Nigerian Bottling Company factory to supply steam, cooling, and electricity. The system solved the difficulties posed by the frequent grid power outages. The bottling company also sells surplus electricity to the local utility. Additionally, Cummins organized the supply of compressed natural gas (CNG) to run the generators, as there is no natural gas network nearby.

Interested to learn more about cogeneration? You might also like:

Cogeneration technology is suitable for a wide range of industries and facilities beyond those described. These include almost any sizeable building requiring heat for a large part of the year, and almost any industry needing heat as part of its process. The potential for reducing fuel and electricity costs makes the technology an attractive option for many applications.
 

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A Cummins é líder mundial em energia que projeta, fabrica, vende e comercializa motores diesel e de combustível alternativo de 2,8 a 95 litros, grupos geradores elétricos movidos a diesel e alternativos de 2,5 a 3, 500 kW, bem como componentes e tecnologia relacionados. A Cummins atende a seus clientes por meio de sua rede de 600 instalações de distribuidores independentes e de propriedade da empresa e mais de 7, 200 locais de revendedores em mais de 190 países e territórios.

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