Novel two-stage absorption solar air conditioning system

Abstract

The invention relates to a novel two-stage absorption solar air conditioning system. In the technical scheme, a vacuum tube heat collector with a compound parabolic reflector is used as a solar heat collector, and hot water generated by the solar heat collector heats a solution in a two-stage lithium bromide absorption refrigerator by separate heat pipes to drive the refrigerator to refrigerate a room for air conditioning. An auxiliary gas heat source is arranged in the system, and when the heat of a solar heat source is insufficient, a gas heater is started for auxiliary heating. The system adopts the design of two pipelines, one part of generated hot water drives the refrigerator directly by heat pipes to refrigerate a room to reduce pipeline waste, and the other part is stored in a water tank for later use when hot water in heat pipes is insufficient. According to the measures, the utilization of solar energy can be improved synthetically, the energy is saved; and by using the novel heat pipe technology, heat exchange efficiency is increased, and high efficiency and energy saving can be obtained by the solar air conditioning system.

Description

technical field [0001] This novel secondary absorption solar air-conditioning system is a new type of energy-saving and environment-friendly air-conditioning system, which belongs to the field of development and utilization of new energy. Background technique [0002] With the improvement of living standards, people's requirements for living environment are getting higher and higher, and air conditioners are becoming more and more popular. However, conventional compression refrigeration air conditioners consume a lot of power resources. At the same time, the refrigerant used - Freon will destroy the atmospheric ozone layer. [0003] Nowadays, the awareness of environmental protection is gradually rooted in the hearts of the people, and the situation of energy shortage is highlighted. Countries all over the world have done a lot of research on the utilization of solar energy. my country also established a solar air-conditioning demonstration project in the 1990s, using lith...

AI Technical Summary

Problems solved by technology

The refrigerator can work normally when the temperature of the heat source is above 86°C, while the heat collection temperature of conventional solar collectors is around 100°C, and the available temperature difference is small, so the cooling efficiency of the unit is low

Moreover, the thermal efficiency of traditional lithium bromide refrigerators is low. For a heat source of about 100°C, the efficiency of a single-effect refrigerator is about 0.7;

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