| Summary: | 碩士 === 國立臺北科技大學 === 冷凍空調工程系所 === 100 === In this study, we performed experimental analysis by applying indirect evaporative cooling module to VRF system experiment. Based on the experimental results, we further compared the performance and energy saving between indirect evaporative cooling and air cooling, and analyzed the errors of experiment and simulation at outside air temperatures of 28 ℃, 31 ℃, 34 ℃and 37 ℃. For simulation, the heat exchanger model, the regression equation of the compressor performance, the evaporator model and expansion valve model are established by mathematical modeling, and the VBA built in Microsoft EXCEL is used to program the software for heat transferring and performance analysis of evaporative cooling system.
The results show that the indirect evaporative cooling module can reduce energy consumption significantly and enhance EER. As to the energy saving analysis, the indirect evaporative cooling module can save energy up to +11.03%. For the error analysises of experiment and simulation, the error value is less than 10%. From the above results, the indirect evaporative cooling module can effectively enhance the performance of VRF system and verify the reliability of simulation software.
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