多功能大型空間空調外氣需量控制策略

Outdoor Air Control Strategy for Multi-function Large Space Air-Conditioning System

彭柏翰(Po-Han Peng)

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(2010年)

https://doi.org/10.6841/NTUT.2010.00606

摘要

多功能大型空間如室內體育館因容納人數多，為維持室內空氣品質，空調系統須引入大量外氣降低室內二氧化碳濃度。由於台灣氣候濕熱，引進大量外氣會使空調負荷及耗電量大增，故外氣需量控制可減少耗能。本文以台北小巨蛋為多功能大型空間之研究案例，利用建築動態耗能模擬，建立小巨蛋基礎模型進行全年動態耗能分析。藉由實際調查之各活動人員之排程，進行各項外氣需量控制策略之模擬，包含全熱交換器應用、延遲外氣引入、人數外氣需量及外氣平均風量控制，比較各項控制策略在拆搭台與高、中、低活動量四種模式，對全年建築及空調耗能之影響。研究結果顯式採用全熱交換器可降低25%尖峰外氣負荷，節省全年空調耗電7.07%及建築耗電3.39%。採用延遲外氣引入控制策略可節省全年空調耗電9.21%及建築總耗電4.25%。依室內人數之外氣需量控制策略可節省全年空調耗電11.58%及建築總耗電5.34%。本研究加以分析外氣平均風量控制策略，發現可節省全年空調耗電11.56%及建築總耗電5.33%。三種外氣需量控制策略，均在人員數較少之中活動量模式得到最佳節能效果，其中又以人數外氣需量控制及外氣平均風量控制為最佳之控制策略。

關鍵字

多功能大型空間 ； eQUEST ； 建築節能 ； 外氣需量控制

並列摘要

Multi-function large space such as indoor stadium often holds events with high density occupancy. Therefore large volume of outdoor air is needed to maintain air quality and low concentration of carbon dioxide. Due to the highly humid climate in Taiwan, large volume of outdoor air would cause high heat load and energy high consumption for the air-conditioning system. Outdoor air control is then important for energy saving. This study uses the Taipei dome as a multi-function large space case. Dynamic building energy model was setup for annual building energy analysis. A survey of occupancy schedules was conducted for modeling of different outdoor air controls. The outdoor air controls include the application of total heat exchange, delay outdoor air introduction, outdoor air control using people occupancy, and average outdoor air volume control strategies. The control strategies are applied to four different activity levels, namely, preparation stage, high occupancy, medium occupancy, and low occupancy. The effects to the building energy and air-conditioning energy were studied. It is found that the application of total heat exchange can lower 25% of peak load. The annual energy saving for air-conditioning and building are respectively 7.07% and 3.39%. When delay of outdoor air control is used, the respective savings are 9.21% and 4.25%. When control according to people occupancy is used, the respective savings are 11.58% and 5.34%. Average outdoor air volume control is found to be an effective strategy. The respective savings are 11.56% and 5.33%. The energy saving is better for medium level of occupancy. Among the three control strategies, control according to people occupancy and average outdoor air volume have the best energy saving results.

並列關鍵字

Multi-function large space ； eQUEST ； building energy saving ； outdoor air control strategy

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