A system and method for recovering thermal radiation energy in an engine compartment

Abstract

The invention discloses a thermal radiation energy recovery system and a recovery method suitable for use in automobile engine cabins. The system includes a Peltier heat exchange module, a cabin thermal radiation energy recovery unit, and a circulating medium control component. The Peltier heat exchange module absorbs And transfer the exhaust radiant heat of the engine exhaust pipe. The coolant medium in the engine is heated at the cabin thermal radiation energy recovery unit and enters the heat exchanger of the heating system through the circulating medium control component. The coolant medium blown out by the blower of the heating system The air sends the heat emitted by the heated coolant into the cab. After the coolant medium undergoes the heat dissipation process in the heat exchanger, the temperature of the coolant medium decreases and enters the heat radiation energy recovery unit again through the electromagnetic flow distribution valve under the action of the water pump. , forming a cycle to realize the recovery and reuse of thermal radiation energy in the engine compartment, which can reduce fuel consumption and achieve economy, energy saving and environmental protection of the entire vehicle.

Description

technical field [0001] The invention relates to the field of thermal radiation energy recovery, in particular to a thermal radiation energy recovery system and recovery method suitable for the engine compartment of an automobile. Background technique [0002] The engine is an energy conversion device that converts heat energy into mechanical energy. At present, the high-temperature and high-pressure gas expansion work produced by fuel combustion in automobile engines has about 30% energy utilization rate, and the rest of the heat is dissipated by the engine block and the exhaust system. A considerable part of thermal radiation energy is accumulated in the cabin. [0003] At present, most passenger cars use a non-independent heating system. The principle is to use the preheating of the circulating water of the engine coolant medium as a heat source to introduce the warm air core for heat exchange, and then send the warm air into To improve ride comfort in the cab, this tradi...

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Problems solved by technology

[0003] At present, most passenger cars use a non-independent heating system. The principle is to use the preheating of the circulating water of the engine coolant medium as a heat source to introduce the warm air core for heat exchange, and then send the warm air into To the driver's cabin to improve ride comfort. This traditional car heating system solution only uses part of the heat generated by the engine. In cold regions, the temperature rise in the driver's cabin is very slow, and the effective utilization rate of heat is low.

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