Experimental device for measuring performance of phase change material in temperature difference energy utilization process

Abstract

The invention discloses an experimental device for measuring performance of a phase change material in a temperature difference energy utilization process. The experimental device comprises a high-pressure energy accumulator, a constant-temperature water bath system, a high-pressure oil collecting and supplementing system, a pressure control system and an electromagnetic flowmeter. The high-pressure energy accumulator is used for containing a to-be-tested phase-change material, a rubber oil bag is further arranged in the high-pressure energy accumulator so as to simulate the working process that the phase-change material converts heat energy into high-pressure oil pressure energy or mechanical energy under the driving of heat exchange temperature difference, and the pressure control system mainly uses a high-pressure oil pump and an overflow valve to control the pressure in the rubber oil bag. The electromagnetic flowmeter can accurately measure the volume flow of the high-pressure oil so as to quantify the power capability of the high-pressure oil. The device can simulate the working process of different phase-change materials under different working pressures and different cold source and heat source temperature states, can directly test the volume change rate and working performance of the organic phase-change materials in the temperature difference energy utilization process, and has the advantages of low manufacturing cost, simplicity in operation, high universality, high reduction degree of the real working process and the like.

Description

technical field [0001] The invention relates to an experimental device for measuring the performance of phase change materials, in particular to an experimental device which can directly test the feasibility and working performance of organic phase change materials in the field of temperature difference energy utilization. Background technique [0002] With the continuous development of scientific research, technical means and social economy, research on marine science, marine resources and marine environment has received more and more attention. At the same time, the realization of reasonable exploration, development and utilization of marine resources is also of great significance to the long-term and stable development of national energy strategy, military strategy and economic strategy. Therefore, ocean energy represented by ocean temperature difference energy has been researched a lot. The so-called ocean temperature difference energy refers to the ocean thermal energy...

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Problems solved by technology

In addition, the current research devices for the utilization process of ocean temperature difference generally separate the phase change heat transfer process of phase change materials from the energy conversion process caused by the volume change of phase change materials. Experimental research on the whole workflow of variable materials can only pass complex field tests

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