Article | REF: BE9734 V2

Heat transformers Chillers and Heat Pumps

Authors: Francis MEUNIER, Pierre NEVEU

Publication date: June 10, 2018

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6. Polygeneration

In the interests of rational energy use, there's no reason to stop at trithermal systems. As a result, more sophisticated systems exist that use more than three temperature levels. We'll mention just one here: trigeneration.

With a dither system, mechanical energy and medium-temperature heat can be generated from high-temperature heat. This medium-temperature heat can be recovered to operate a trithermal system. This coupling produces a quadrithermal system (figure 21 ):

  • of heat is consumed at high temperatures at T sc ;

  • mechanical energy is produced;

  • heat is generated at a first intermediate temperature T ...

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Polygeneration