學校大空間建築空調負載轉移之節能應用分析

Energy Conservation Analysis for the Measure of Cooling Load Shifting of Large Building in the School

邱禹文(Yu-Wen Chiu)

指導教授 ： 李魁鵬

國立臺北科技大學/機電學院/冷凍空調工程系所/碩士(2006年)

https://doi.org/10.6841/NTUT.2006.00359

摘要

學校大空間場所必設空調冰水機組例如禮堂或體育館等，但只在辦理活動時才使用到空調系統，其餘時間皆閒置沒有使用。本研究利用DOE-2動態模擬程式，評估學校在進行大空間空調冰水機組汰舊換新時，依據大空間建築及預計並聯至行政大樓實際熱負荷預測值，選用適當適量的空調系統所需負載，且採用高IPLV(部分負載效率)冰水機組，並將冰水管路並聯至行政大樓辦公室、實習教室，轉移大空間沒使用空調的冰水流量，以節省設備成本及降低空調耗電量，並提高空調冰水機組效率及使用率。
另一方面，考慮學生非上課時間時，空調需量只有辦公室，可利用冰水變流量控制系統來達到節約能源效果，系統控制採中央監控系統以求能精確達到節能控制，並能立即提供訊息給操作人做正確的判斷，減少不必要的人力浪費。本研究之分析結果可得新設空調主機，採高COP值高IPLV(平均部份負載)的雙壓螺旋式滿液式冰水機組，整年度空調系統總耗電量可較舊空調系統節省43.36%，若再結合空調系統冰水側採用二次區域泵變流量設計(VWV)，整年度空調總耗電量可較舊空調系統節省48.35%，此節能手法可提供各級學校於禮堂或體育館在建築空調設計規畫之參考。

關鍵字

節能 ； COP ； IPLV ； 滿液式冰水主機 ； VWV(變流量)

並列摘要

Air conditioning chiller unit that are used in big space, assembly hall or the stadium, always leave unused when no activity be hold. This research uses DOE-2 dynamic simulation program to model every second’s condition, and evaluate the best profit in upgrading the whole system. Base on the big building and the real heat load predict number of estimated academic building , we chose loadable air-conditioner, and high LPLV water chiller unit Also, we shunt windingchiller pipe with academic building and experiment classroom in order to transfer unused air condition’s chiller flow volume. All of these are used to saving equipment cost,lowering the electrical consumption of air condition,rising the efficiency and using rate of air conditioning water chiller units
On the other hand, using the chiller variable flow volume to control system may lead to a well outcome in saving energy when the classrooms are unused. The system have adopted the central supervisory system to accurate the energy saving. The system can immediately provide dates for operator to make the correct judgment and avoid unnecessary waste. As the result of this research, the newly main engine can use high COP,high IPLV(Integrated Part Load Value) dual compressor screw flooded chiller unit。The amount of the electrical saving is 43.36％ in contrast with the former old system in a whole year. If the new system will combine the air condition system chiller side and adopt the secondary zone pump variable water volume(VWV), the amount of the electrical saving in air conditioning will become 48.35%。 This kind of system can provide all levels of schools take into consideration while planning assembly hall or the stadium in construction air conditioning design.

並列關鍵字

Energy Conservation ； COP ； IPLV ； Flooded chiller unit ； Variable water volume

參考文獻

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