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U.S. Department of Energy
Office of Scientific and Technical Information

System for heat recovery for combustion machine including compressor for combustion air

Patent ·
OSTI ID:7058918
A system for waste heat recovery is disclosed. It comprises a combustion machine with a compressor for the combustion air and means like a heat exchanger and/or a recirculation duct, to transfer heat, contained in the combustion gases after their expansion in the machine, to the combustion air flow before its entry into the compressor. Water is introduced into the (to be) heated combustion air flow cooling it by its evaporation, and the vapor is partially condensed again in a cooler fitted in the compressed flow after leaving the compressor. The condensation can take place at higher temperature, thus the system acts as heat pump for the waste heat. The compressed air flow enters extra cooled into the combustion chamber which provides an additional advantage. For the compressor, combustion chamber and turbine a normal gas turbine may be used.
Assignee:
Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijik Onderzoek (Netherlands)
Patent Number(s):
US 4426842
OSTI ID:
7058918
Country of Publication:
United States
Language:
English