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US 2006/0037348 A1Published application
Cogeneration system
AssigneeLG Electronics Inc.
InventorsSeung Kang, Chang Choi, Won Choi, Hyung Lim, Yoon Hwang
Life of this patent
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Abstract
A cogeneration system including an engine, a generator connected to an output shaft of the engine to generate electricity, and a waste heat recoverer to recover waste heat of the generator and to transfer the recovered waste heat to a heat consumer. Since waste heat of the generator is supplied to the heat consumer, the cogeneration system exhibits a high energy efficiency while achieving release of heat from the generator.
Claims21
A cogeneration system comprising:
- an engine;
- a generator connected to an output shaft of the engine to generate electricity;
- and
- waste heat recovering means to recover waste heat of the generator and to transfer the recovered waste heat to a heat consumer.
1 more element
A cogeneration system comprising:
- an engine;
- a generator connected to an output shaft of the engine to generate electricity;
- and
- waste heat recovering means to recover waste heat of the engine and waste heat of the generator and to transfer the recovered waste heat to a heat consumer.
1 more element
A cogeneration system comprising:
- an engine;
- a generator connected to an output shaft of the engine to generate electricity;
- a heat pump type air conditioner, which uses the electricity generated from the generator, and comprises a compressor, a directional valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger;
- a pre-heater to pre-heat outdoor air blown toward the outdoor heat exchanger;
- a compressor discharge line heater to heat a refrigerant passing through a discharge line of the compressor;
- and
- waste heat recovering means to transfer, to the pre-heater, waste heat of the generator, heat of cooling water of the engine, and heat of exhaust gas of the engine when the heat pump type air conditioner operates in a heating mode under a condition in which the outdoor heat exchanger is frosted, and to transfer the waste heat of the generator and the cooling water heat of the engine to the pre-heater and the exhaust gas heat of the engine to the discharge line of the compressor when the heat pump type air conditioner operates in the heating mode, but not under the condition in which the outdoor heat exchanger is frosted.
4 more elements
Dependencies are inferred from the claim text.