空調設備改裝間接蒸發式冷卻模組性能之研究

Performance Study on Retrofitting Air Conditioners by Indirect Evaporatively- Cooled Device

陳嘉倫(Jia-Luen Chen)

指導教授 ： 柯明村

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2010年)

摘要

本研究以空調設備改裝間接蒸發式冷卻模組進行實驗之研究，藉由實驗結果之數據分析，可求得間接蒸發式模組的熱傳效率及飽和效率，進而比較間接蒸發式冷卻模組與氣冷式之運轉效率。本研究將間接蒸發式冷卻模組分為交叉流式及逆向流式兩種進行實驗，並探討噴嘴出口壓力及管排數對熱傳效率及飽和效率之影響，實驗設定噴嘴出口水壓為0.15、0.2及0.3MPa，噴水管排數為1~3排。
研究結果得知，當噴嘴出口壓力越大時，熱傳效率及飽和效率隨之升高，而冷凝器入口溫度會隨之下降，提升冷凝器的冷凝能力。於實驗結果得知間接蒸發式冷卻模組，交叉流式的耗電比氣冷式降低12.5~36.1%，交叉流式的冷凝能力比氣冷式提升13.6~55.0%，交叉流式的COP比氣冷式提升16.9~66.9%。逆向流式的耗電比氣冷式降低9.4~38.0%，逆向流式的冷凝能力比氣冷式提升6.5~36.1%， 逆向流式的COP比氣冷式提升9.3~72.9%，由上述結果得知間接蒸發式冷卻模組能有效提升空調系統的性能，進而達到節能目的。

關鍵字

間接蒸發式冷卻 ； 熱傳效率 ； 飽和效率

並列摘要

In the present study, we retrofitted an indirect device module with air conditioning facilities to conduct an experiment. Analyzing the experimental results, we investigated the heat transfer efficiency and saturation efficiency of device module, and compared it with operating efficiency of air-cooling. This experiment was divided into two modules, and discussed the influence of the front nozzle pressure and row quantity of tubes heat transfer efficiency and saturation efficiency. The water pressures of the front nozzle are 0.15、0.2 and 0.3MPa,respectively,and the row quantities of tube row Nozzle are 1 ~ 3 rows.
The experimental results show that higher pressure in front nozzle induces higher heat transfer and saturation efficiency, and condenser inlet temperature is decrease, which enhances the capacity of the condenser. Moreover, the power consumption of cross-flow is lower than that of air-cooled by 12.5~36.1%, the Condensing capacity of cross-flow is higher than that of air-cooled by 13.6~55.0%, the COP of cross-flow is higher than that of air-cooled by 16.9~66.9%, the power consumption of reverse-flow is lower than that of air-cooled by 9.4~38.0%, the Condensing capacity of reverse-flow is higher than that of air-cooled by 6.5~36.1%, and the COP of reverse-flow is higher that than air-cooled by 9.3~72.9%.

並列關鍵字

Indirect Evaporatively-Cooled Device ； Heat transfer efficiency ； Saturation efficiency

參考文獻

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