A dynamic load model of train air conditioner is established. the conduction load is calculated by the reaction coefficient method. The heat of radiation is calculated by the heat balance method. Dynamic hourly load is calculated in "Four vertical and four horizontal" lines and analysis result is given. The trend of the train dynamic load is consistent with the outdoor temperature trend. This is helpful for the matching and control of the air conditioning systems to accurately collect the meteorological parameters during the train running. The EER curve of train air conditioning systems varying with different outdoor conditions is obtained by enthalpy test. The hourly energy consumption of train air conditioner is calculated with the EER and dynamic load. The compressor load ratio of train air conditioning is calculated. Finally, the online control strategy is given according to the compressor load ratio.The conclusion is that two types of air conditioning systems (32 kW and 23 kW) are selected according to the difference of peak cooling capacity in "Four vertical and four horizontal" lines. The maximum difference of load is 16 kW in the same line. Compared with the fixed frequency mode, the power consumption is reduced by the online control mode effectively. In the above conditions, the maximum rate of air conditioning power saving is 30.4% in "Four vertical and four horizontal" high-speed rail lines.
LI Chong
,
WU Jianghong
,
JIANG Feng
. Dynamic Load Calculation and Energy Conservation Strategy Study for "Four Vertical and Four Horizontal" High-speed Rail Air Conditioner[J]. Journal of Mechanical Engineering, 2018
, 54(18)
: 162
-169
.
DOI: 10.3901/JME.2018.18.162
[1] 陈焕新,欧阳召文,蔡敏. 空调列车运行能耗调查与分析[J]. 节能技术,2003,21(1):18-20. CHEN Huanxin,OU YANG Zhaowen,CAI Min. Investigation and analysis of the energy consumption in traveling air-conditioned trains[J]. Energy Conservation Technology,2003,21(1):18-20.
[2] 唐松柏,黄问盈. 我国高速列车速度分级[J]. 中国铁道科学,2006,27(2):77-82. TANG Songbai,HUANG Wenying. Speed classification of high speed trains in China[J]. China Railway Science,2006,27(2):77-82.
[3] 沈裕浩,彭彪. 列车空调的运行特性[J]. 制冷学报,1998(2):15-19. SHEN Yuhao,PENG Biao. The operating performance for the train air-conditioning system[J]. Journal of Refrigeration,1998(2):15-19.
[4] 王朋. 建筑空调动态负荷计算分析[D]. 上海:上海交通大学,2007. WANG Peng. Dynamic cooling load calculation analysis for building air conditioning system[D]. Shanghai:Shanghai Jiao Tong University,2007.
[5] Hill JE,Furlong RR. ASHRAE cooling load calculations[J]. ASHRAE Journal,1973,15(5):61-66.
[6] 陈明. 高速列车空调系统参数优化[D]. 成都:西南交通大学,2012. CHEN Ming. Parameter optimization of air conditioning system for high speed train[D]. Chengdu:Southwest Jiao Tong University,2012.
[7] LIU W,DENG Q,HUANG W,et al. Variation in cooling load of a moving air-conditioned train compartment under the effects of ambient conditions and body thermal storage[J]. Applied Thermal Engineering,2011,31(6-7):1150-1162.
[8] 臧建彬,杨宗凌. 京沪高速铁路客车空调实时负荷分析[J]. 铁道车辆,2006,44(4):8-11. ZANG Jianbin,YANG Zonglin. Real time load analysis of passenger train air conditioning system on Beijing Shanghai high speed railway[J]. Railway Vehicle,2006,44(4):8-11.
[9] 许建柳,刘卫华. 高速铁路客车空调负荷的非稳态方法计算[J]. 流体机械,2010,38(12):69-72. XU Jianliu,LIU Weihua. Unsteady calculating method for cooling load of high-speed railway passenger car[J]. Fluid Machinery,2010,38(12):69-72.
[10] 陈焕新,刘蔚巍. 铁路空调客车负荷的确定[J]. 中国铁道科学,2002,23(5):60-64. CHEN Huanxin,LIU Weiwei. Determination of the load of railway air conditioned passenger cars[J]. China Railway Science,2002,23(5):60-64.
[11] LI W,SUN J. Numerical simulation and analysis of transport air conditioning system integrated with passenger compartment[J]. Applied Thermal Engineering,2013,50(1):37-45.
[12] 张晴原. 中国建筑用标准气象数据库[M]. 北京:机械工业出版社,2004. ZHANG Qingyuan. Standard meteorological database for Chinese architecture[M]. Beijing:China Machine Press,2004.
[13] 翁文兵,李勇,李聪. 辐射供冷房间冷负荷计算方法的研究[J]. 建筑节能,2016(1):1-6. WENG Wenbing,LI Yong,LI Cong. Cooling load calculation method for radiant cooling room[J]. Building Energy Conservation,2016(1):1-6.
[14] 闫云飞,张智恩,张力,等. 太阳能利用技术及其应用[J]. 太阳能学报,2012(s1):47-56. YAN Yunfei,ZHANG Zhien,ZHANG Li,et al. Application and utilization technology of solar energy[J]. Acta Energiae Solaris Sinica,2012(s1):47-56.
