cogeneration Articles

  • What is Cogeneration?

    Cogeneration is the process of generating both electrical and heat energy from a single fuel source.  Also known as Combined Heat & Power (CHP), cogeneration makes use of the commonly discarded thermal energy which is generated from the combustion of fuels such as diesel, natural gas, bi-fuel, and even  ...

  • The Beltran biomass cogeneration system

    An effective, economical solution for harvesting safe, renewable domestic energy, mitigating wastes and achieving environmental goals. Background The Beltran Biomass Cogeneration System (BBCS) is an integrated, three-stage process that uses proprietary gasification technology to convert biomass and other organic wastes into versatile, cleanburning synthesis gas. The purified ...


    By Beltran Technologies, Inc.

  • Thermodynamic and thermoeconomic comparison of combined cycle cogeneration systems

    In this paper, several configurations of combined cycle cogeneration systems are investigated by energy, exergy and thermoeconomic analyses. In each of these configurations, varying steam demand is considered rather than fixed steam demand. Among the different approaches for thermoeconomic analysis in the literature, the specific exergy costing method is applied. Since the systems have more than ...


    By Inderscience Publishers

  • Thermal exergy optimisation for an irreversible cogeneration power plant

    The optimal design model, based on exergy analysis, of an irreversible cogeneration cycle has been presented using finite-time thermodynamics. The external irreversibility is due to the thermal resistance between the system and the heat reservoirs while the internal irreversibility is due to the non-isentropic compression and expansion process within the system. The internal irreversibility of ...


    By Inderscience Publishers

  • TAIM WESER, at the forefront in biomass cogeneration solutions

    The state-of-the-art biomass gasification plant, developed by TAIM WESER utilizing proprietary technology, is now up and running successfully, joining the range of technological products offered by the company. This solution offers clients high energy efficiency, streamlined processes and a design that, owing to its compact dimensions, allows the equipment to be installed at the location where ...


    By Taim Weser S.A.

  • Exergy optimisation of a Brayton cycle-based cogeneration plant

    An endoreversible Brayton cycle-based cogeneration plant has been optimised based on the dimensionless total exergy output rate criterion with a constraint on power-to-heat ratio. An optimal pressure ratio parameter and the maximum dimensionless total exergy output rate have been numerically determined. The optimisation results have been compared with those based on the total useful energy rate ...


    By Inderscience Publishers

  • Assessment of micro-cogeneration potential for domestic trigeneration

    Cogeneration is worldwide considered as the major option to achieve considerable energy saving with respect to traditional systems. This paper deals with the application of micro-cogeneration, Micro-Combined Heat and Power (MCHP) (electrical power ...


    By Inderscience Publishers

  • Thermodynamic evaluation of gas turbines for cogeneration applications

    In this paper, the first and second laws of thermodynamics have been utilised to evaluate the performance of intercooled reheat regenerative gas turbine cogeneration plant. The effects of overall pressure ratio, cycle temperature ratio, pressure losses, and process steam pressure on energetic and exergetic efficiencies have been investigated. The results indicate that most of the exergy ...


    By Inderscience Publishers

  • Renovation of Dalkia’s Cogeneration Plant at Bron - Case Study

    In 2009 Dalkia France informed Clarke Energy that it was going to replace their cogeneration plant at the Bron Parilly site, of which they are the operator. This was the first time Clarke Energy renovated a cogeneration plant on site. Three GE’s Jenbacher JMS616 GS-NL gas fuelled power plants were renovated at site for this ...


    By Clarke Energy

  • An exergy-based method for allocating carbon dioxide emissions from cogeneration systems

    Many companies, government agencies and researchers have sought means to allocate emissions for cogeneration systems. Some work has been carried out in this area, but the results obtained thus far are not universally accepted, and often are inconsistent, overly complex and difficult to use, and not based on sound reasoning. In this paper, an exergy-based method for allocating emissions for ...


    By Inderscience Publishers

  • Sensitivity analysis of component efficiencies on performance of a gas turbine cogeneration system

    The performance of a 1000 kW gas-turbine cogeneration system was evaluated in terms of performance measures, such as net power, exergy efficiency of the system, and the unit costs of electricity and steam. The efficiencies of some components that have a significant affect on the performance were taken as physical variables. Sensitivity was evaluated by introducing parameters, defined as the ratio ...


    By Inderscience Publishers

  • Vattenfall`s Cogeneration Power Plant Reuter West - Case Study

    The cogeneration power plant “Reuter West” was erected as a base load power plant in the vicinity of the existing “Reuter” plant. The two hard coal fired 300 MW units D and E were commissioned in 1987 and 1989. Today the cogeneration units supplying electricity and thermal energy are operated by Vattenfall Europe GmbH. The heart of each power plant is the boiler where the ...

  • Performance assessment of a 5 kW SOFC cogeneration fuel cell

    The performance of a 5 kW Solid Oxide Fuel Cell (SOFC) will be studied and described in this paper. This will help to significantly reduce residential Green House Gas (GHG) emission to about 20%, when compared with the actual emissions, based on the high-performance boiler and electricity produced by high-efficiency combined cycle. The particular benefit of SOFC, when compared with other ...


    By Inderscience Publishers

  • Cogeneration steam power desalting plants using steam turbines

    This paper presents the reasons and merits of using cogeneration generation power desalting plants (CPDP), the different methods used to rate their performance, and their drawbacks. The ratings of the CPDP are crucial, because the fuel cost allocation between the water and power depends on the rating method used. The ratings are usually based on the first and the second laws of thermodynamics. A ...


    By Inderscience Publishers

  • Exergy analysis of a cogeneration system through Artificial Neural Network (ANN) method

    The main objective of this study is to apply the Artificial Neural Network (ANN) method to a cogeneration system, located in Izmir, Turkey, for exergetic evaluation purposes. The data used are based on the actual operational conditions and the results obtained from this system, which was exergetically analysed by the authors. It consists of three turbines with a total capacity of 13 MW, six spray ...


    By Inderscience Publishers

  • The adoption of cogeneration in the Japanese manufacturing sector: technological, economic and institutional determinants

    Combined heat and power (CHP) has been identified by the Second and Third Assessment Report of the Intergovernmental Panel on Climate Change as a powerful carbon abating technology. In this paper, we review trends and overall changes in power generation technologies insofar as these affect industrial CHP in Japan; we also propose an empirical model for the analysis of CHP adoption based on time ...


    By Inderscience Publishers

  • Cogeneration experience with Clarke Energy: Carthage Grains CHP Plant, Tunisia

    Carthage Grains is the leader in the Maghreb in the trituration of the soya bean: production of oil and soybean meal. The process of Carthage Grains consumes electrical and thermal energy in the form of steam (30 to 35 tonnes per hour at 12 bar pressure). As the supplier of Nejma Oil (a Clarke Energy customer since 2012), the choice of Carthage Grains for GE’s Jenbacher gas engine ...


    By Clarke Energy

  • Exergy analysis of a syngas fuelled cogeneration cycle for combined production of power and refrigeration

    This communication presents a biomass fuelled cogeneration cycle for the combined production of power and refrigeration. The system is an integration of combined gas–steam cycle and absorption refrigeration cycle. A thermodynamic analysis through energy and exergy is employed, to investigate the effects of cycle pressure ratio, gas turbine inlet temperature and evaporator temperature on first–law ...


    By Inderscience Publishers

  • Cogeneration Renovation of Cofely`s Saint Quentin Installation - Case Study

    In 2012, Cofely’s Picardie branch, the site’s exploiter, entrusted the renovation of a cogeneration installation in Saint Quentin, in the Aisne province, to Clarke Energy. Initially, this “boiler room” consisted of a turbine installed in a soundproof enclosure. Cofely could either renovate ...


    By Clarke Energy

  • VIYELLATEX improves factory efficiency thanks to cogeneration with gas engines

    VIYELLATEX Limited is the composite knit apparel and textile manufacturing business unit of VIYELLATEX group. It started its operations in 1996. The company is comprised of design and product development, sample, knitting, washing, cutting, sewing and finishing sections. The Textile Testing Corporation (Testing Lab) is also a part of VIYELLATEX. It caters to major buyers such as Puma, S.Oliver, ...


    By Clarke Energy

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