使用熱回收裝置於恆溫恆濕系統的研發

Research and development of constant temperature and humidity system using heat recovery device

徐啟峰(Chi-Feng Hsu)

指導教授 ： 卓清松

國立臺北科技大學/機電學院/冷凍空調工程系所/碩士(2013年)

摘要

本研究目的為藉由冷凝廢熱來取代恆溫恆濕的電熱再熱方式，藉此達到節省能源與降低運轉成的效益。實驗中使用一套熱回收裝置，使冷凝熱能供給恆溫恆濕系統其再熱過程所需之能量，並與傳統電熱再熱方式、定頻與變頻壓縮系統所匹配的四種運轉模式 (變頻電熱再熱方式、變頻熱回收再熱方式、定頻電熱再熱方式、定頻熱回收再熱方式)於相同的外氣、室內負載條件下，做一系列效益分析、運轉測試的比較。實驗結果顯示，於室內負載為50%(顯熱85W；潛熱20W)時，恆溫恆濕系統使用定頻熱回收較定頻電熱之再熱方式，COPCTHS可提升51.3%；整體耗電比較約提高23%，其中再熱裝置的能源消耗節省了81.4%。綜合上述四種運轉模式之測試結果，恆溫恆濕系統在整體耗電量上，使用變頻熱回收的運轉模式擁有較低的耗電量，其次為定頻熱回收的模式，再考慮系統的建置成本、運轉費用與穩定性下，本研究選用定頻熱回收的運轉模式做為一個較經濟的運轉模式。本實驗之冷凝熱回收裝置確實能供給恆溫恆濕系統其再熱過程之能量，並達到節省能源消耗的目標。

關鍵字

恆溫恆濕系統 ； 直膨式 ； 熱回收 ； 變頻 ； 節能效益

並列摘要

The objective of the study is to use condensing waste heat to replace electric reheating way under direct-expansion constant temperature and humidity so as to achieve the effect of energy saving and operation reduction. A set of heat recovery device is used in an experiment to make condensing heat energy supply the required energy to constant temperature and humidity system in its reheating process, and make a series of effectiveness analysis and comparison of operation test results of 4 operation models (inverter electric reheating way, inverter heat recovery reheating way, fixed-frequency electric reheating way, and fixed-frequency heat recovery reheating way) attached to traditional electric reheating way, fixed-frequency and inverter compression system under the same outside air and indoor loading conditions. Experimental results show that when indoor load is 50% (sensible heat 85W; latent heat 20W), the COPCTHS of fixed-frequency heat recovery used by constant temperature and humidity system can be increased by 51.3% comparing to reheating way of fixed-frequency electric heat, and overall power consumption is increased by around 23%, with the power consumption of reheating device saved by 81.4%. After synthesis of test results of the above 4 operation models, in the aspect of overall power consumption of constant temperature and humidity system, the operation model using inverter heat recovery has lower power consumption, and the next power-saving operation model is fixed-frequency heat recovery model. Also in consideration of the establishment cost, operation expenses and stability of system, the study selects fixed-frequency heat recovery operation model as a more economical operation model. The condensing heat recovery device used in the experiment can really supply energy to constant temperature and humidity system in its reheating process, and achieve the objective of saving energy consumption.

並列關鍵字

constant temperature and humidity system ； direct expansion ； heat recovery ； fixed-frequency ； energy-saving performance

參考文獻

[8] 陳志球，硬膠囊生產線空調系統熱回收節能探討，碩士論文，國立台北科技大學能源與冷凍空調系統工程系，2008。

[3] L.T. Yeh, “Review of heat transfer technologies in electronic equipment,” ASME. Electronic Packaging, 1995, pp.333-339.

[5] M. Zaheer-Uddin, J.C.Y. Wang, “Modelling and control of an air-to-air heat recovery system”, 1994.

[6] Hou Liquan, Wang Jianqiang, Hou Yanfen, Zhang Weijie, “Development of test device for recovering condensate heat from air conditioners”, Industrial Construction Vol.36, Supplement, 2006.

[7] Zhaolin Gu, Hongjuan Liu, Yun Li, “Thermal energy recovery of air conditioning system－heat recovery system calculation and phase change materials development”, Applied Thermal Engineering 24, 2006, pp.2511-2526.