太陽能結合吸附劑製冷技術性能之研究與分析

Abstract

本研究建立一套系統適用於濕熱氣候下的太陽能驅動除濕蒸發冷卻裝置，利用除濕系統出風低濕度比之特性，使蒸發冷卻效果近一步提升，用於替代常規電力空調，從而達到減少夏季耗電，從而達到節能之目的。該裝置由除濕系統和蒸發冷卻系統兩子系統構成，透過測試各種不同的除濕系統再生型式、除濕劑類型以及蒸發冷卻系統結構型式，分析不同組合型式對蒸發冷卻製冷性能之影響，從而探討出系統最適宜之設備組合模式；接著針對再生溫度、再生風量、外氣條件等關鍵參數優化改良，找出適宜的操作範圍，達到降低能耗之目的。 於蜂巢轉輪結合熱泵系統再生實驗中，55℃的再生溫度為本研究蜂巢除濕轉輪的最佳操作點，於此工況下操作，溫升小且除濕性能高。直接蒸發冷卻系統實驗中，採用直接噴淋可使出口溫度下降約0.6℃；採用噴淋+填料，可使出口溫度下降約2.2℃; 採用噴淋+填料+淺層溫能，可使出口溫度下降約5.8℃。即通過增設填料-水簾，可使直接噴淋蒸發冷卻效果提高約2.6倍；通過增設填料-水簾+淺層溫能，可使直接噴淋蒸發冷卻效果提高約8.6倍。於三種不同應用模式下實驗，引用溫度較低的室內回風會有著更高的能效比。

In this study, a system was established for a solar-driven dehumidification evaporative cooling device suitable for hot and humid climates. The evaporative cooling effect was further improved by using the characteristics of the low-humidity ratio of the air output of the dehumidification system to replace conventional electric air conditioners, thereby reducing summer consumption. electricity, so as to achieve the purpose of energy saving. The device is composed of two subsystems, a dehumidification system and an evaporative cooling system. By testing various types of dehumidification system regeneration, dehumidifier types, and evaporative cooling system structural types, the impact of different combinations on evaporative cooling performance is analyzed, and the system is discussed. The most suitable equipment combination mode; then optimize and improve key parameters such as regeneration temperature, regeneration air volume, and outside air conditions, and find a suitable operating range to achieve the purpose of reducing energy consumption. In the regeneration experiment of the honeycomb runner combined with the heat pump system, the regeneration temperature of 55 ℃ is the best operating point of the honeycomb dehumidification runner. Under this working condition, the temperature rise is small and the dehumidification performance is high. In the experiment of the direct evaporative cooling system, the outlet temperature can be reduced by about 0.6°C by using direct spraying; the outlet temperature can be lowered by about 2.2°C by using spraying + packing; the outlet temperature can be reduced by using spraying + packing + shallow temperature energy dropped by about 5.8°C. That is, by adding filler-water curtain, the effect of direct spray evaporative cooling can be increased by about 2.6 times; by adding filler-water curtain + shallow temperature energy, the effect of direct spray evaporative cooling can be increased by about 8.6 times. Experiments in three different application modes show that the indoor return air with a lower temperature will have a higher energy efficiency ratio.