醫療類建築為全國非製造業能源之第二大使用戶,能源管控為營運期間之重要課題,在各耗電項目中,空調佔了近一半的耗電支出。本研究以醫院型綠建築為例,選取一已營運之醫院型綠建築,驗證能耗模擬軟體eQUEST模擬結果之可靠性,建立醫院之耗電模型,評估空調節能設計中變頻主機、變風量系統、變水量系統之實際節能效率,研究結果顯示軟體透過實際數據及適當參數假設,eQUEST模擬結果與醫院用電平均耗電數據誤差可在7%以內。三節能系統設置節省全年空調用電量約39.3%。在熟悉軟體模擬操作並與確認軟體模擬可靠性後,以同樣位於中部氣候區之新建綠醫院為案例,探討空調節能潛力。模擬顯示空調節能設置在所探討新建醫院中,平均約減少40%空調總耗電。針對新建醫院,本研究提出四種設計方案,透過軟體模擬不同主機噸位組合。四方案經模擬耗電及生命週期成本評估後,得各方案總投資回收年限在五年以內即可回收,最佳主機設計方案為300RT兩台之設計,設備投資成本約為8,848,400元,生命週期成本約為69,150,134元。總結以醫院營運型態及空調設置,納入綠建築節能設計中的變頻主機、變風量系統、變水量系統,本研究歸納平均降低醫院總空調耗電約40%。
Hospitals consume large amounts of energy due to its operation characteristic. The HVAC system designed in hospital buildings runs 24 hours and has special air supply requirements. This study aims to evaluate the energy-saving efficiency of HVAC system by studying two Taiwan’s green hospital buildings. Results show 39.3% energy saving efficiency based on integrating VFD (Variable Frequency Drive) chiller, VAV (Variable Air Volume) system and VWV (Variable Water Volume) system for an existed hospital buildings. Verification shows eQUEST simulation results are within 7% margin of error. The new-built hospital is evaluated based on appropriate parameter assumptions and life-cycle analysis (LCA). Four cases are generated based on different chiller capacity designs. Four cases are estimated to reduce 40% energy consumption compared to baseline model. It is concluded that the optimum chiller capacity design are two 300RT chillers with investment cost of 8,848,400 NTD and life-cycle cost of 69,150,134 NTD. Total payback period is four years. To sum up, this study demonstrates the integration of computer simulat1ion and LCA in evaluating green hospital buildings, and the HVAC energy-saving performance for hospitals proposed in Taiwan’s green building policy is approximately 40%.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。