環控模擬程式應用於隧道冷卻與通風設備之耗能分析

Energy Consumption Analysis of Tunnel Cooling and Ventilation Equipment in Subway Enviroment

林思妤(Ssu-Yu Lin)

指導教授 ： 柯明村

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(2009年)

摘要

捷運系統是一個極耗能的設施，其捷運環控系統(Environmental Control System)的耗能量佔總耗電40％。本論文針對台北地下捷運有月台門系統與無月台門系統之兩車站來做耗能比較分析，所採用的模擬程式為地下鐵環控模擬程式(Subway Environmental Simulation Program，SES)，輸入參數以台北某地下捷運之幾何形狀及運轉條件為主，結果發現當在240秒之發車班距僅啟動月台下方排氣系統UPE風量為30cms/每軌時，即可使車站及隧道區上、下行軌之最高溫度低於37℃，耗電量為76,500kWh/month。發車班距為180秒時，若隧道冷能設計溫度提升至乾球溫度31℃、相對濕度65％時，隧道空調系統之噸數可降低至22RT，每月所需的隧道冷能耗電量將可降至42,170kWh/month；但若將相對濕度降低至60％時，耗電量及空調噸數也會增加至65RT，每月所需的隧道冷能耗電量將提升至120,696kWh/month。發車班距為120秒時，若隧道冷能設計溫度提升至乾球溫度29℃、相對濕度65％時，隧道空調系統之噸數可降低至262RT，每月所需的隧道冷能耗電量將可降至485,786kWh/month；但若將相對濕度降低至60％時，耗電量及空調噸數也會增加至326RT，每月所需的隧道冷能耗電量將提升至604,792kWh/month。故隧道內的濕度控制與耗電量的多寡，有著很重要的關係。

關鍵字

隧道通風 ； 捷運車站 ； 活塞效應 ； 環控系統

並列摘要

Rapid transit system is a very energy-consuming facilities, and its associated environmental control system consumes almost 40％ of the total electricity power. In this paper, the subway simulation program named Subway Environmental Simulation (SES) is utilized to analysis the underground Taipei MRT system with and without platform screen doors to study and compare the energy consumption. The full-scale geometrical parameters and operational conditions in summer of Taipei city were input. The results show that when the flowrate of under-platform exhaust system (UPE) is 30cms/track in headway of 240 second, the highest temperature of the station and tunnel area can be down to below 37 oC and the power consumption is 76,500 kWh/month. In the case of headway of 180 second, if the tunnel design temperature can rise to dry-bulb temperature 31 oC with relative humidity 65%, the cooling load of the air-conditioning system can be reduced to 22RT and the required power consumption will be reduced to 42,170 kWh/month. If the designed relative humidity is reduced to 60%, the cooling load will be increased to 65RT and the power consumption will be increased to 120,696 kWh/month. In the case of headway of 120 second, if the tunnel design temperature can rise to dry-bulb temperature 29 oC with relative humidity 65％, the cooling load of the air-conditioning system can be reduced to 262RT and the required power consumption will be 485,786 kWh/month. If the designed relative humidity is reduced to 60%, the cooling load will be increased to 326RT and the power consumption will be increased to 604,792 kWh/month.

並列關鍵字

Tunnel Ventilation ； Underground subway station ； Piston effect ； Environmental control system

參考文獻

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