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Trigeneration, or combined cooling, heat and power (CCHP), is the simultaneous production of electricity, heat and cooling all from a single source. The heat and electricity are produced by the normal operation of the Combined Heat and Power (CHP) unit, and an absorption chiller is used as a means of producing energy-efficient cooling from the heat output of the CHP.
An absorption chiller is a refrigerator that uses a heat source to provide the energy needed to drive the cooling process.
Absorption chillers do not have moving parts, as such there is little to no wear and tear on the technology and Operation and Maintenance costs are very low. In addition to this when considering it as part of a wider solution due to the technology the overall lifecycle costs are low. This makes it attractive on solutions whereby part or all the heat may not be required from the engine.
Typically, when an absorption chiller is included as part of a CCHP scheme you can expect a Coefficient of Performance (CoP) range of 0.6 – 0.8. If driven by steam this figure could increase the CoP from 1.2 – 1.4. This means that on average every kWth from the engine = 0.7kWcth at approximately 4°C.
Traditional electric chillers CoP is between 4 – 6. Thus, although they are significantly greater in efficiency, they require expensive grid purchased electricity to operate.
Absorption chilling whilst beneficial should only be considered on applications whereby the hot water or steam demand is little or none and the cooling demand is consistent and high.
Reduce your energy, transmission and distribution costs by producing power close to the point of use.
Edina is a market-leader in the engineering, installation and maintenance of Cogeneration and Trigeneration power plants and the exclusive distributor of high-efficiency MWM gas engines in the UK and Ireland.
We can either supply a single engine only or deliver the full EPC contract to include design, build, engineering, project management, integration of auxiliary equipment and balance of plant, engine commissioning and full 24 hours a day, 7 days a week, 365 days a year service and maintenance of the equipment over a 15-year life cycle.
Across our 35-year history we have requisite knowledge across the design, engineering, project management and maintenance of gas-engine fuelled power plants and have a growing installed capacity of over 740MW electrical across the UK, Ireland, Australia and India.
If you are looking to take control of your energy needs and produce power close to the point of use, we would love to hear about your project requirements and help power your future. If you would like to discuss your project, please contact us.
