Recovery and Use of Heat
The heat liberated from a CHP unit will consist, in the first instance, of:
- Hot exhaust gases.
- Hot water from the CHP cooling system.
This heat can be recovered through appropriate heat exchangers as:
- Low temperature hot water (LTHW) at <100ºC.
- High temperature hot water (HTHW) at 150-200ºC (from exhaust heat only in the case of an engine).
- Steam (from exhaust heat only in the case of an engine).
- Warm air.
The precise configuration will be determined by the end application. For certain processes, direct use of hot exhaust gas is appropriate.
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