1Analysis for the characteristic of the working cycle combined the VMETS system and the compression refrigeration systemXIA Meng-xin, XU Shi-ming8-122Optimization and selection of heating schemes based on grey relational analysisJING You-yin, CHAI Bao-shuang, FANG Yue-lan13-143Experiment research about performance characteristic under changered conditions of fan-coil unitNI Mei-qin, ZUO Bin, XIE Zhi-xiang15-174Study on EnergyPlus used in displacement ventilation system designTAN Li-bao, CHEN Jing, LI Qiang-min18-195Combustion optimization and performance test of coal-fired boilerGUO Yu-quan, GENG Li20-236The essential of selecting and operating of briquette fired boilerYUAN Fu-lin, LU Yan, WU Bao-chen26-287Research on the optimization of grinding systemsFU Ke-ming, ZHU Hong29-308Energy saings by mixing room air of perimeter and internal zonesLIU Guo-qiang38-399Analysis of energy conservation and economy of untreated sewage cooling and heating source and traditional oneWU Xue-hui, SUN De-xing42-4410Practical application of sewage source heat pump systemYAN Gui-lan, TANG Zhi-wei45-47