Heat exchange – Heating and cooling – Heating and cooling of the same material
Patent
1978-02-28
1980-04-08
Davis, Jr., Albert W.
Heat exchange
Heating and cooling
Heating and cooling of the same material
62239, 62402, 60 3907, 415179, 60 3967, F25B 1300
Patent
active
041967739
ABSTRACT:
The present system employs a turbine engine system which has three turbo rotor sections coupled to the same drive shaft. The first section employs a high temperature multi-stage expansion turbine to provide the major source of mechanical power. The second section employs a multi-stage turbo compressor which functions to compress air from the ambient, and such compression provides heat, through an interstage heat exchanger, to a heat reservoir, which may be an enclosure which it is desired to heat, or the atmosphere. The third section takes part of the compressed air from said second section and, (after said air is cooled either to near ambient temperature in the cooling mode or near the enclosure temperature in the heating mode) expands that air in a low temperature multi-stage expansion turbine to accomplish three goals. First, the expansion of the compressed air drives the expansion turbine to provide a second source of mechanical power which assists in driving the compressor section. Secondly, the expansion-cooled air, passing through the conduits of an interstage heat exchanger of the third section, extracts heat from air passing across said conduits, said heat being an added input of heat into the system. The cooling of this last-mentioned air provides for extraction of heat from the source of that air; i.e., either from an enclosure which it is desired to cool, or from the atmosphere. Thirdly, the expanded air as it is discharged from the expansion turbine is itself a cooling source and may be mixed with the air passing across the conduits of the third section which together provide a source of cool air.
REFERENCES:
patent: 2409159 (1946-10-01), Singleton
patent: 2585570 (1952-02-01), Messinger et al.
patent: 2618470 (1952-11-01), Brown et al.
patent: 2669100 (1954-02-01), Peterson
patent: 3494145 (1970-02-01), Davis et al.
Cleaver William E.
Davis Jr. Albert W.
Focarino Margaret A.
Turbotherm Corporation
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