外氣需量控制用於空調節能之研究

A Study on Outside Air Control for Energy Saving in Air-Conditioning System

張寅祺(Yin-Chi Chang)

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(2008年)

https://doi.org/10.6841/NTUT.2008.00416

摘要

本研究利用三類建築之典型實例，建立3D立體建築模型，利用動態耗能模擬軟體DOE-2，以全年逐時氣象資料，進行全年之動態耗能分析，並比較全年建築實際耗電值與全年模擬耗電值之差異，在可允許之誤差耗能範圍進行各項外氣需量控制之模擬，包含外氣冷房、人數外氣需量控制、CO2濃度設定等，比較各項外氣需量控制法對建築及外氣耗能之影響。首先量販類建築的結果顯示各種外氣需量控制法對量販類建築皆可達到省能之效果，其中人數外氣需量控制及CO2濃度設定有較大之節能成效，人數外氣需量控制可節省空調耗電部分一年約可達12.71 %，以建築總耗電而言一年約可節省6.18 %。在室內CO2濃度設定方面，CO2濃度1000 ppm與600 ppm比較，在空調耗電部分CO2濃度1000 ppm比600 ppm一年約可節省29.96 %，在建築總耗電部分一年約可節省24.44 %。
其次選取一棟醫院類及學校類建築，利用DOE-2動態耗能模擬軟體進行全年耗能之模擬，比較兩類建築室內CO2濃度為1000 ppm與600 ppm耗電量之差異，醫院類建築1000 ppm比600 ppm在空調耗電部分一年約可節省10.2 %，在建築總耗電部分一年約可節省6.31%；學校類建築1000 ppm時比600 ppm時在空調耗電部分一年約可節省40.22 %，在建築總耗電部分一年約可節省32.54 %。
經由各項模擬結果可知，各種外氣需量之控制對建築之節能有很大之幫助。

關鍵字

外氣需量控制 ； 動態耗能模擬 ； 節約能源

並列摘要

This study used three typical types of buildings for energy analysis. 3D building models were created for annual dynamic building energy analysis using DOE-2. This study used annual local weather data for annual energy consumption comparison with the actual building cases. Simulation of annual energy consumption of outside air control include outside air control according to the number of people and indoor carbon dioxide level. It was found from the simulation results that outside air control can save energy especially using number of people and carbon dioxide level as the control parameters. The total electricity consumption of the building per year could drop about 6.18%, and that of air-conditioning is about 12.71%, when the number of people indoor controls outside air volume. When indoor carbon dioxide level is set at 1000 ppm, it could reduce the total annual electricity consumption of the building by about 24.44% as compared to the present cases. Carbon dioxide level of 1000 ppm as compared with 600 ppm can save air-conditioning energy by about 29.96%.

Then a hospital building and school building were simulated and analyzed for the annual energy consumption. A comparison between two levels of indoor carbon dioxide levels, namely, 1000 ppm and 600 ppm was studied. When indoor carbon dioxide level was set at 1000 ppm in for the hospital building, it could reduce the total annual electricity consumption by about 6.31%, and that for air-conditioning is about 10.2% as compared with 600 ppm. When indoor carbon dioxide level is set at 1000 ppm in the school building, it could reduce the total annual electricity consumption of the building by about 32.54%, and that for air-conditioning is about 40.22% as compared with 600 ppm.
According to the aforementioned, it can be concluded that outside air control has a great potential for energy saving. Using outside air control could have a great contribution to save energy during this era of energy shortage.

並列關鍵字

outdoor air demand control ； dynamic energy modeling ； energy saving

參考文獻

[22] 張柏弘、張寅祺、蔡尤溪，[空調外氣風量與建築耗能指標之研究]，冷凍空調&能源科技雜誌，2008年。

[2] Y.P. Zhou, J.Y. Wu, R.Z. Wang, Performance of energy recovery ventilator with various weathers and temperature set-points. Energy and Building.2006,pp 108-125.

[3] Z. H. Wen , “Dynamic simulation of energy management control functions for HVAC systems in buildings”, Energy Conversion and Management , Vol.47,No.7-8, 2006,pp 926–943.

[4] Joseph C. Lam ,Electricity consumption characteristics in shopping malls in subtropical climates Energy Conversion and Management ,Vol.44 ,2003,pp 1391–1398

[5] K.W. Mui, L.T. Wong, L.Y. Law, “An benchmarking model for ventilation systems of air-conditioned offices in subtropical climates”, Applied Energy.2007,pp365-379.