A Solar Adsorption Refrigeration System Driven by Photovoltaic Photothermal Combination to Enhance Heat Exchange

Abstract

The invention relates to the field of solar adsorption refrigeration systems, in particular to a solar adsorption refrigeration system driven by combined photovoltaic and thermal energy to enhance heat exchange, including a photovoltaic module that absorbs light energy to generate electric energy, and a photothermal module that absorbs light energy to generate heat energy , adsorption components and refrigeration components. The photovoltaic photothermal combined driving and enhanced heat exchange solar adsorption refrigeration system described in the present invention has a novel structure and ingenious conception, adopts heat pipe technology to produce hot water, takes away part of the solar radiation heat absorbed by photovoltaic cells, and reduces the cost of photovoltaic cells. The operating temperature improves the photoelectric conversion efficiency and realizes the production of clean electricity; at the same time, the hot water generated in the adsorption bed strengthens heat transfer through metal fins, which effectively improves the uniformity of temperature distribution in the adsorption bed, reduces the temperature distribution gradient, and shortens the temperature. The cycle cycle improves the refrigeration efficiency and energy utilization of the whole system; through the auxiliary electric heating system, the reliability of the adsorption bed refrigeration cycle is guaranteed.

Description

technical field [0001] The invention relates to the field of solar adsorption refrigeration systems, in particular to a solar adsorption refrigeration system driven by combined photovoltaic, photothermal, and enhanced heat transfer. Background technique [0002] Solar refrigeration technology is an application technology of renewable energy in the field of refrigeration. my country is rich in solar energy resources, the total annual solar radiation exceeds 6000MJ / ㎡, and the areas with annual sunshine time greater than 2200h account for 2 / 3 of the country's land area. In summer, when the demand for building cooling is the greatest, the intensity of solar radiation is also the greatest. Therefore, the high matching of solar radiation and cooling capacity at the peak of the season makes solar cooling technology have broad application prospects. [0003] Solar adsorption refrigeration is a typical solar refrigeration technology, which has the advantages of simple structure, no...

AI Technical Summary

Problems solved by technology

At present, because the thermal conductivity of the adsorbent is generally small, the temperature distribution in the adsorption bed is uneven, and the temperature gradient is obvious, resulting in a long cycle period, low energy utilization efficiency and refrigeration efficiency of the solar adsorption refrigeration system, and it is difficult to improve the overall performance. It has greatly affected the popularization and application of the technology

Images