NM-BIN模型在热湿地区建筑能耗评价中的应用研究
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摘要
传统的BIN模型在评价建筑全年能耗时是稳态计算,只考虑对温度划分频段,认为太阳辐射负荷与温度成线性关系,精确度较低。为了提高BIN模型在建筑能耗评价中的准确性,主要对目前传统的BIN法进行改进,在对温度划分频段时对含湿量也划分了频段,形成了温湿度频段,并且认为太阳辐射量不与室外温度成线性关系,对太阳辐射所造成的负荷重新进行计算。提出的改进方法可以使温湿度频段划分得更加精确,减小BIN模型进行能耗评价时的误差,通过对透过玻璃窗的日射得热、围护结构不稳定传热、室内散热源的改进,以及对含湿量划分频段,获得New Modified BIN法(简称NM-BIN法)。采用NM-BIN法和Energy Plus对热湿地区建筑能耗进行了能耗模拟,并将模拟结果与建筑实测能耗进行了对比。结果显示,NM-BIN和Energy Plus的模拟结果与建筑实测能耗的相对误差分别为3.92%和1.45%,即NM-BIN和Energy Plus的模拟结果只差2.43%。该结果表明新改进的NM-BIN法具有较好的准确度。由于NM-BIN无需复杂建模,方便手算,因此具有更好的工程实用性。
The traditional BIN model is a steady-state calculation in evaluating buildings' annual energy consumption,considers dividing the temperature by the frequency band only and the solar radiation load to be linear with temperature,which is less accurate. In order to improve the accuracy of BIN model in evaluating building energy consumption,the paper mainly improves the current traditional BIN method,divides the moisture content into frequency bands when temperature is divided by the frequency band,forms the temperature and humidity frequency band,and considers the solar radiation quantity is not linear with the outdoor temperature,the load caused by solar radiation is recalculated. The improved method can make the frequency band of temperature and humidity more accurate,and reduce the error of the BIN model in energy consumption evaluation. The New Modified BIN method( referred to as NM-BIN method) is achieved by enhancing the heat of solar radiation through the glass window,the unstable heat transfer of the envelope,and indoor heat sources,as well as diving the moisture content. The energy consumption of building in hot and humid area is simulated by NM-BIN method and Energy Plus,and the simulation results are compared with the measured energy consumption of the building. The results show that the relative errors between the simulation results of NM-BIN and Energy Plus and the measured energy consumption of buildings are 3. 92% and 1. 45%respectively,that is,the difference between NM-BIN and Energy Plus is only 2. 43%. The results show that the new modified NM-BIN method has better accuracy. Since NM-BIN does not require complicated modeling and is handy,it has better engineering practicability.
The traditional BIN model is a steady-state calculation in evaluating buildings' annual energy consumption,considers dividing the temperature by the frequency band only and the solar radiation load to be linear with temperature,which is less accurate. In order to improve the accuracy of BIN model in evaluating building energy consumption,the paper mainly improves the current traditional BIN method,divides the moisture content into frequency bands when temperature is divided by the frequency band,forms the temperature and humidity frequency band,and considers the solar radiation quantity is not linear with the outdoor temperature,the load caused by solar radiation is recalculated. The improved method can make the frequency band of temperature and humidity more accurate,and reduce the error of the BIN model in energy consumption evaluation. The New Modified BIN method( referred to as NM-BIN method) is achieved by enhancing the heat of solar radiation through the glass window,the unstable heat transfer of the envelope,and indoor heat sources,as well as diving the moisture content. The energy consumption of building in hot and humid area is simulated by NM-BIN method and Energy Plus,and the simulation results are compared with the measured energy consumption of the building. The results show that the relative errors between the simulation results of NM-BIN and Energy Plus and the measured energy consumption of buildings are 3. 92% and 1. 45%respectively,that is,the difference between NM-BIN and Energy Plus is only 2. 43%. The results show that the new modified NM-BIN method has better accuracy. Since NM-BIN does not require complicated modeling and is handy,it has better engineering practicability.
引文
[1]ASHRAE.ASHRAE Handbook Fundamentals 2009[M].2009.
[2]David E Knebel.Simplified Energy Analysis Using the Modified Bin M ethod[M].Atlanta,GA:American Society of Heating,Refrigerating,and Air-Conditioning Engineers,1983.
[3]Mohamed Elhelw.Analysis of Energy Management for Heating,Ventilating and Air-Conditioning Systems[J].Alexandria Engineering Journal,2016,55(2):811-818.
[4]龙惟定.用BIN参数作建筑物能耗分析[J].暖通空调,1992,(2):6-11.Long Weiding.Use the BIN Parameters for Building Energy Consumption Analysis[J].HVAC,1992,(2):6-11.(in Chinese)
[5]龙惟定.上海地区的Bin气象参数[J].制冷技术,1990,(4):1-3.Long Weiding.The Bin in Shanghai M eteorological Parameters[J].Refrigeration Technology,1990,(4):1-3.(in Chinese)
[6]李力,田胜元.对中国建筑供热空调能耗分析实用简化法——温湿频数(Bin)法的研究[J].重庆建筑大学学报,1999,21(3):97-99.Li Li,Tian Shengyuan.Analysis of China Building Heating Energy Consumption of Air Conditioning and Practical Simplified M ethod,Temperature Humidity(Bin)M ethod is Used to Study the Frequency[J].Journal of Chongqing Jianzhu University,1999,21(3):97-99.(in Chinese)
[7]苏华,苏芬仙,田胜元.二维Bin方法与一维Bin方法比较[J].建筑热能通风空调,2001,(5):4-6.Su Hua,Su Fenxian,Tian Shengyuan.Tw o-dimensional Bin M ethod Compared w ith One-Dimensional Bin method[J].Building Energy and Environment,2001,(5):4-6.(in Chinese)
[8]苏芬仙.建筑能耗动态分析用气象数据构成及THRF新的能耗分析方法研究[D].重庆:重庆大学,2003.Su Fenxian.Building Energy Consumption Dynamic Analysis Using the M eteorological Data and THRF New Energy Consumption Analysis M ethod Study[D].Chongqing:Chongqing University,2003.(in Chinese)
[9]苏芬仙,张从军,田胜元.BIN建筑能耗计算方法的改进[J].重庆建筑大学学报,2006,(1):88-91.Su Fenxian,zhang Congjun,Tian Shengyuan.Improvement of M ethod in BIN Building Energy Consumption Calculation[J].Journal of Chongqing Jianzhu University,2006,(1):88-91.(in Chinese)
[10]孙雨林.建立一种新的Bin法用于建筑能耗分析[J].福建建设科技,2014,(2):56-59.Sun Yulin,To Create a New Kind of Bin M ethod Used for Building Energy Consumption Analysis[J].Fujian Construction Science&Technology,2014,(2):56-59.(in Chinese)
[11]赵坚,刘金祥,夏栋良.基于改进的BIN法模拟分析建筑空调能耗[J].节能,2015,(6):59-63.Zhao Jian,Based on the Improved BIN M ethod Simulation Analysis of Building Energy Consumption of Air Conditioning[J].Energy Conservation,2015,(6):59-63.(in Chinese)
[12]https://energyplus.net/weather.
[13]Henninger R H,Witte M J.Energy Plus Testing with Building Thermal Envelope and Fabric Load Tests from ANSI[J].ASHRAE standard,2013,140:2011.
[2]David E Knebel.Simplified Energy Analysis Using the Modified Bin M ethod[M].Atlanta,GA:American Society of Heating,Refrigerating,and Air-Conditioning Engineers,1983.
[3]Mohamed Elhelw.Analysis of Energy Management for Heating,Ventilating and Air-Conditioning Systems[J].Alexandria Engineering Journal,2016,55(2):811-818.
[4]龙惟定.用BIN参数作建筑物能耗分析[J].暖通空调,1992,(2):6-11.Long Weiding.Use the BIN Parameters for Building Energy Consumption Analysis[J].HVAC,1992,(2):6-11.(in Chinese)
[5]龙惟定.上海地区的Bin气象参数[J].制冷技术,1990,(4):1-3.Long Weiding.The Bin in Shanghai M eteorological Parameters[J].Refrigeration Technology,1990,(4):1-3.(in Chinese)
[6]李力,田胜元.对中国建筑供热空调能耗分析实用简化法——温湿频数(Bin)法的研究[J].重庆建筑大学学报,1999,21(3):97-99.Li Li,Tian Shengyuan.Analysis of China Building Heating Energy Consumption of Air Conditioning and Practical Simplified M ethod,Temperature Humidity(Bin)M ethod is Used to Study the Frequency[J].Journal of Chongqing Jianzhu University,1999,21(3):97-99.(in Chinese)
[7]苏华,苏芬仙,田胜元.二维Bin方法与一维Bin方法比较[J].建筑热能通风空调,2001,(5):4-6.Su Hua,Su Fenxian,Tian Shengyuan.Tw o-dimensional Bin M ethod Compared w ith One-Dimensional Bin method[J].Building Energy and Environment,2001,(5):4-6.(in Chinese)
[8]苏芬仙.建筑能耗动态分析用气象数据构成及THRF新的能耗分析方法研究[D].重庆:重庆大学,2003.Su Fenxian.Building Energy Consumption Dynamic Analysis Using the M eteorological Data and THRF New Energy Consumption Analysis M ethod Study[D].Chongqing:Chongqing University,2003.(in Chinese)
[9]苏芬仙,张从军,田胜元.BIN建筑能耗计算方法的改进[J].重庆建筑大学学报,2006,(1):88-91.Su Fenxian,zhang Congjun,Tian Shengyuan.Improvement of M ethod in BIN Building Energy Consumption Calculation[J].Journal of Chongqing Jianzhu University,2006,(1):88-91.(in Chinese)
[10]孙雨林.建立一种新的Bin法用于建筑能耗分析[J].福建建设科技,2014,(2):56-59.Sun Yulin,To Create a New Kind of Bin M ethod Used for Building Energy Consumption Analysis[J].Fujian Construction Science&Technology,2014,(2):56-59.(in Chinese)
[11]赵坚,刘金祥,夏栋良.基于改进的BIN法模拟分析建筑空调能耗[J].节能,2015,(6):59-63.Zhao Jian,Based on the Improved BIN M ethod Simulation Analysis of Building Energy Consumption of Air Conditioning[J].Energy Conservation,2015,(6):59-63.(in Chinese)
[12]https://energyplus.net/weather.
[13]Henninger R H,Witte M J.Energy Plus Testing with Building Thermal Envelope and Fabric Load Tests from ANSI[J].ASHRAE standard,2013,140:2011.