液態除濕系統應用於外氣空調箱

Liquid dehumidification system for make-up air unit

陳志豪(Chih-Hao Chen) ； 康育豪(Yu-Hao Kang) ； 陳鈞振(Jiun-Jen Chen) ； 陳幸婷(Hsing-Ting Chen) ； 李哲銓(Che-Chuan Lee) ； 吳友烈(Yu-Lieh Wu) ； 黃國全(Kuo-Chuan Huang) ； 徐椿原(Xu Chun-Yuan)

《冷凍空調&能源科技》 127期 (2021/05) Pp. 77-82

https://doi.org/10.29911/JEHVACE_NEW.202105_(127).0008

摘要

台灣屬於高溫高濕的亞熱帶島嶼型氣候，空調耗能約占商辦大樓耗電量50%，其中潛熱負荷約佔15～30%，在法規規定下，室內二氧化碳濃度須保持在1000 ppm以下，因此勢必需要引進外氣，但此舉將使空調負荷更重，是因此開發一套節能型的外氣空調箱系統將可大幅降低台灣總耗電量，液態除濕系統因為具有低溫再生的特性，可使用熱泵驅動，利用低溫60℃以下的熱水與15℃的冰水取代傳統5～7℃的冷凝除濕系統，結果顯示，液態除濕系統的EF值可達到2.6～2.8 kg/kWh，高於傳統冷凝除濕系統約30%，另一方面，液態除濕系統相較於固態除濕系統，在高濕段具有較高的除濕能力與較低的再生溫度，因此液態除濕系統將可取代大部分的除濕外氣空調箱應，在帶液測試方面，出口的離子濃度幾乎與環境殘留濃度差距不大，對人體與設備影響極小，液態除濕系統還具有殺菌功能，對於後疫情時代健康住宅的需求，將特別具有優勢，適合應用於醫院與健身房等場域。

關鍵字

液態除濕 ； 外氣空調箱 ； 帶液測試

並列摘要

Taiwan has a subtropical island climate with high temperature and high humidity. The energy consumption of air-conditioning accounts for about 50% of the electricity consumption of commercial buildings, of which the latent heat load accounts for about 15-30%. Under regulations, the indoor carbon dioxide concentration must be kept below 1000 ppm. Therefore, it is necessary to introduce outside air, but this will make the air conditioner load heavier. Thus, developing an energy-saving make-up air unit will significantly reduce Taiwan's total power consumption. The liquid dehumidification system has the characteristics of low-temperature regeneration. It can be driven by a heat pump, using hot water below 60℃and cooling water at 15℃to replace the traditional condensing dehumidification system using 5~7℃cooling water. The results show that the Energy Factor of the liquid dehumidification system can reach 2.6~2.8 kg/kWh, which is higher than the traditional condensing dehumidification system is about 30%. On the other hand, compared to the solid dehumidification system, the liquid dehumidification system has a higher dehumidification capacity and lower regeneration temperature in the high humidity section. Therefore, the liquid dehumidification system will replace most of the dehumidification systems in the make-up air unit. In the carryover of the liquid test, the ion concentration at the outlet is almost the same as the concentration in the typical environment, and the impact on the human body and equipment is minimal. The liquid dehumidification system also has a sterilization function. The demand for healthy houses in the post-epidemic era will be improved. It mainly has advantages, suitable for use in hospitals and gymnasiums.

並列關鍵字

Liquid desiccant ； Make-up air unit ； Carryover test

參考文獻

Mujahid Rafique, M.,Gandhidasan, P.,Bahaidarah, Haitham M.S.(2016).Liquid desiccant materials and dehumidifiers – A review.Renewable and Sustainable Energy Reviews.56,179-195.

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Li, Guo-Pei,Zhang, Li-Zhi(2016).Investigation of a solar energy driven and hollow fiber membrane-based humidification–dehumidification desalination system.Applied Energy.177,393-408.

Liang, Jyun-De,Huang, Bo-Hao,Chiang, Yuan-Ching,Chen, Sih-Li(2020).Experimental investigation of a liquid desiccant dehumidification system integrated with shallow geothermal energy.Energy.15,116452.

https://ashraemadison.org/downloads/Meeting_Presentations/jan_2014_tech_presentation.pdf