Cogeneration system
First Claim
1. A cogeneration system comprising:
- an electric power generator;
a cooling circuit configured to cool said electric power generator with a first heat transfer medium;
a heat exchanger provided on said cooling circuit;
an exhaust heat recovery circuit through which a second heat transfer medium that exchanges heat with the first heat transfer medium via said heat exchanger flows;
a heat storage unit connected to said exhaust heat recovery circuit and configured to store the second heat transfer medium that has undergone the heat exchange by said heat exchanger; and
a controller, wherein;
a first temperature sensor and a heater to which electric power is supplied from said electric power generator are connected, in this order, downstream of said heat exchanger in a direction in which the second heat transfer medium flows;
a circulating pump configured to circulate the second heat transfer medium is further connected to said exhaust heat recovery circuit; and
said controller controls a flow rate of said circulating pump so that, based on a temperature detected by said first temperature sensor, the detected temperature approaches a predetermined target temperature.
2 Assignments
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Accused Products
Abstract
A cogeneration system of the present invention includes: an electric power generator (5); a cooling circuit (10) configured to cool the electric power generator (5) with a first heat transfer medium; a heat exchanger (16) provided on the cooling circuit (10); an exhaust heat recovery circuit (12) through which a second heat transfer medium that exchanges heat with the first heat transfer medium via the heat exchanger (16) flows; a heat storage unit (20) connected to the exhaust heat recovery circuit (12) and configured to store the second heat transfer medium that has undergone a heat exchange by the heat exchanger (16); and a controller (21), wherein a first temperature sensor (17), and a heater to which electric power is supplied from the electric power generator (5), are connected, in this order, downstream of the heat exchanger (16) in a direction in which the second heat transfer medium flows, and the controller (21) controls a flow rate of a circulating pump (13) so that, based on a temperature detected by the first temperature sensor (17), the detected temperature becomes a predetermined target temperature. In addition to preventing water temperature decrease in heat recovery and ensuring safety, this configuration can keep water temperature high at all times.
8 Citations
9 Claims
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1. A cogeneration system comprising:
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an electric power generator; a cooling circuit configured to cool said electric power generator with a first heat transfer medium; a heat exchanger provided on said cooling circuit; an exhaust heat recovery circuit through which a second heat transfer medium that exchanges heat with the first heat transfer medium via said heat exchanger flows; a heat storage unit connected to said exhaust heat recovery circuit and configured to store the second heat transfer medium that has undergone the heat exchange by said heat exchanger; and a controller, wherein; a first temperature sensor and a heater to which electric power is supplied from said electric power generator are connected, in this order, downstream of said heat exchanger in a direction in which the second heat transfer medium flows; a circulating pump configured to circulate the second heat transfer medium is further connected to said exhaust heat recovery circuit; and said controller controls a flow rate of said circulating pump so that, based on a temperature detected by said first temperature sensor, the detected temperature approaches a predetermined target temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification