Patent ID: 8245948

Claim:
A co-generation system, comprising: an electric generator; a drive source that operates the electric generator; a waste heat recovery heat exchanger that recovers waste heat of the drive source; a hot water supply heat exchanger that boils water; a hot water storage tank connected with the hot water supply heat exchanger through a water circulation path; a water supply path connected with the water circulation path; a hot water supply heat exchanger bypassing apparatus that bypasses the water of the water circulation path from the hot water supply heat exchanger; a heat pump type air conditioner including a compressor, a 4-way valve, an outdoor heat exchanger, an outdoor heat exchanger bypassing path, an expansion apparatus, and an indoor heat exchanger; a supply heat exchanger installed on a refrigerant path of the air conditioner connected between the outdoor heat exchanger, the outdoor heat exchanger bypassing path, and the 4-way valve, such that refrigerant flows therethrough during an operation of the air conditioner; a radiant heat exchanger that radiates heat to an outside installed between the hot water supply heat exchanger and the supply heat exchanger; a heat transfer path that connects the waste heat recovery heat exchanger, the hot water supply heat exchanger, and the supply heat exchanger; a water boil/radiant heat exchanger bypassing apparatus including a water boil/radiant heat exchanger bypassing path and valve that bypasses the heat medium of the waste heat recovery heat exchanger from the hot water supply heat exchanger and the radiant heat exchanger; a radiant heat exchanger bypassing apparatus including a radiant heat exchanger bypassing path and valve that bypasses the heat medium of the waste heat recovery heat exchanger from the radiant level exchanger; and a supply heat exchanger bypassing apparatus including a supply heat exchanger bypassing path and valve that bypasses the heat medium of the waste heat recovery heat exchanger from the supply heat exchanger, wherein the water boil/radiant heat exchanger bypassing valve and the supply heat exchange bypassing valve are actuated to close the water boil/radiant heat exchanger bypassing path and the supply heat exchange bypassing path such that a heat medium in the heat transfer path is circulated through the waste heat recovery heat exchanger, the hot water supply heat exchanger, and the supply heat exchanger during an air-cooling and water boiling mode, and wherein the water boil/radiant heat exchange bypassing valve is actuated to open the water boil/radiant heat exchange bypassing path such that the heat medium in the heat transfer path is circulated through the waste heat recovery heat exchanger and the supply heat exchanger during an air-heating and non water-boiling mode.