Natural gas proton exchange membrane fuel cell and internal combustion engine united drive type air conditioning system

Abstract

The invention relates to an air conditioner system driven by natural gas proton exchange membrane fuel cell and gas engine, comprising compressor of fuel pole, fuel processor, desulfurization and carbondioxide removal machine, proton exchange membrane fuel cell, gas engine, gas air conditioner, driver, motor, dehydrator, heat exchanger, compressor of air pole and so on. The system fuel is natural gas. Hydrogen obtained after natural gas is rebuilt and air generate electrochemical reaction to generate electricity power so as to drive bus. Hydrogen without complete reaction and hydrocarbon gas enter into the gas engine to burn so as to generate mechanical energy, which is used as partial power for bus, meanwhile the fuel gas generated provides heat or cool wind for bus by gas air conditioner. The fuel cell and gas engine can work in phase and it is provided with high efficiency and low pollution. Thermoelectric integrated efficiency is improved so that the usage amount of fuel can decreased by 50% or so.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell-internal combustion engine combined drive air conditioning system using natural gas as fuel, which is suitable for urban public transport passenger buses and belongs to the technical field of energy utilization. Background technique [0002] As the number of cars increases, it brings problems such as a surge in demand for oil and environmental degradation. In order to protect the environment and improve energy efficiency, countries around the world urgently need to develop new vehicle drive systems. Fuel cell power generation drive technology converts the chemical energy of fuel directly into electrical energy without being limited by the Carnot cycle. Among them, the proton exchange membrane fuel cell (Proton Exchange Membrane Fuel Cell; PEMFC) has the advantages of environmental friendliness, long life, low operating temperature, high specific power, high energy efficiency, fast cold star...

AI Technical Summary

Problems solved by technology

[0004] Currently commonly used internal combustion engine drive systems, about 10% of the heat is lost in friction, 25% of the heat is taken away by the exhaust gas, and 40% of the heat is transferred to the cooling water outside the cylinder, so the efficiency of the system is only 20-30%. Through technological innovation, it can only reach about 40%, and the utilization rate of energy is low

In addition, city buses with internal combustion engines emit harmful substances such as particulates, sulfur oxides, and nitrogen oxides during operation, and at the same time emit greenhouse gases—carbon dioxide, which pollutes the urban environment.

[0005] At present, there is no public report on the related technology of proton exchange membrane fuel cell-internal combustion engine combined driving air conditioning system using natural gas as fuel

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