獨立式外氣空調系統(DOAS)運用於商辦大樓之評價研究

The Assessment of Dedicated Outdoor Air System for the Commercial Office Buildings

林嘉育(Chia-Yu Lin)

指導教授 ： 蔡尤溪

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(2012年)

摘要

近年來室內空氣品質要求愈來愈高，我國政府已制定「室內空氣品質管理法」，然而的大量外氣卻增加建築物空調耗能。本研究以獨立式外氣空調系統(dedicated outdoor air system, DOAS)的觀念，提出四種DOAS設計，分別以建築動態能源分析軟體解析其對空調耗能之影響，並與現行空調外氣量控制方法作比較。本研究也.結合辦公大樓中央空調系統，使辦公大樓於夜間或假日加班模式時，無須啟用大型空調主機設備，仍能可供給大樓內部人員空調使用，人員需求的外氣供應量也不會因中央空調系統的關閉，而影響室內清淨度，可完全確立室內空氣品質。由模擬結果發現，此四種系統於日間運轉模式下，相較於一般空調系統，串聯型式空調耗電全年並無節能效果，但並聯型式空調耗電全年約可節省3.8%~ 7.9 %。於夜間局部人員加班時，相較於一般空調系統，串聯型式空調耗電全年約可節省44.4% ~49.5 %，並聯型式空調耗電全年約可節省53.4% ~ 59.4 %。

關鍵字

專用外氣系統 ； 室內空氣品質 ； 空調系統 ； 外氣量控制

並列摘要

Due to the importance of indoor air quality the government of Taiwan has passed the IAQ Management Act just lately. The maintenance in door air quality is now required by law. However large volume of outdoor air supply may increase the power consumption of air-conditioning system.
Dedicated outdoor air system (DOAS) is studied to maintain indoor air quality while keeping the energy consumption low. Four different systems of DOAS are suggested, including serial and parallel arrangement with the central air-conditioning air handling. The energy consumption of these systems is compared to conventional demand control ventilation (DCV) method using dynamic simulation analysis. It is found that the DOAS as proposed can provide good indoor air quality. The system can also be used to meet the air-conditioning need for cases of off peak period. This would have the effects avoiding the operation of the entire central air-conditioning system, especially during nighttime or public holidays.
The results of the simulations show a considerable potential of energy savings with the DOAS operates parallel to the central air-conditioning systems. In comparison to the conventional systems in commercial buildings during daytime, the energy saving is 3.8% to 7.9% annually. During off peak period, with the DOAS operates in serial the results show 44.4% to 49.5% less power consumption annually. For off peak period, the parallel systems show annual energy conservation of 53.4% to 59.4%.

並列關鍵字

DOAS ； indoor air quality ； air-conditioning system ； outdoor air supply control

參考文獻

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