Vehicle-mounted compatibility test platform for automobile exhaust thermoelectric power generation system and test method thereof

Abstract

The invention provides a vehicle-mounted compatibility test platform for an automobile exhaust thermoelectric power generation system and a test method thereof. The vehicle-mounted compatibility testplatform comprises a thermoelectric power generation and performance detection unit and a monitoring unit. The thermoelectric power generation and performance detection unit provides automobile exhaust with adjustable temperature, flow and pressure for the heat exchanger to construct the temperature difference of a thermoelectric device group; the monitoring unit collects signals of all sensors and the working state of an execution part, displays information with an upper computer, and sends an operation command to a main controller by operating an interface of the upper computer to control the operation state of the thermoelectric power generation and performance detection unit. Volt-ampere characteristics of the thermoelectric device group and oil consumption and emission performance ofthe engine under different conditions are tested, and performance evaluation of the heat exchanger structure, the thermoelectric device group electrical topological structure and the cooling effect onautomobile exhaust temperature difference power generation is carried out. The platform can be used for testing the temperature difference power generation performance of automobile exhaust temperature, back pressure, flow, cooling water temperature and cooling water flow, and guidance is provided for vehicle-mounted compatibility optimization of a system.

Description

technical field [0001] The invention belongs to the field of automobile exhaust utilization, and in particular relates to a vehicle-mounted compatibility test platform and a test method for an automobile exhaust temperature difference power generation system. Background technique [0002] Improving the utilization rate of energy in various ways is the most effective way to deal with the energy crisis in today's society, and the recovery and utilization of automobile waste heat is one of them. On the one hand, automobile exhaust takes away a large amount of heat energy. Studies have shown that about 40% of the energy emitted by the fuel in the internal combustion engine of a fuel vehicle is discharged into the atmosphere with the exhaust gas, about 30% of the energy is taken away with the coolant, and about 5% of the energy is consumed In friction, the energy actually used to overcome driving resistance and drive accessories to do work only accounts for about 25%. On the othe...

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Problems solved by technology

At present, there are many researches on the application of automobile exhaust temperature difference power generation in China, but the comprehensive performance detection and vehicle compatibility evaluation of automobile exhaust temperature difference power generation system are still insufficient, and there is a lack of detection of various factors such as exhaust temperature, back pressure, flow, cooling A test platform for the influence of water temperature, cooling water flow rate, internal flow field structure of heat exchanger, etc. on the performance of automobile exhaust temperature differential power generation system

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