基于生物质燃料牧区燃池烟道性能优化研究  

Study on the Performance Optimization of Flue of Biomass Fuel Poo in Pastoral Area

作　　者：白叶飞[1] 高龙 唐汝宁 张嘉雪 康晓龙[1] 张玉瑾[3] BAI Yefei;GAO Long;TANG Runing;ZHANG Jiaxue;KANG Xiaolong;ZHANG Yujin(School of civil engineering,Inner Mongolia University of technology,Hohhot 010051,Inner Mongolia,China;Mengdian project construction and Management Branch of Inner Mongolia electric power(Group)Co.,Ltd.,Hohhot O10010,Inner Mongolia,China;Department of energy engineering,Hebei Institute of architectural engineering,Zhangjiakou 075132,Hebei,China)

机构地区：[1]内蒙古工业大学土木工程学院,内蒙古呼和浩特010051 [2]内蒙古电力(集团)有限责任公司蒙电项目建管分公司,内蒙古呼和浩特010010 [3]河北建筑工程学院能源工程系,河北张家口075132

出　　处：《建筑科学》2023年第2期144-153,共10页Building Science

基　　金：内蒙古自治区自然科学基金项目“内蒙古草原牧区户用生物质燃料地下燃池式供暖系统技术研究”(2019MS05019);内蒙古自治区自然科学基金项目“基于供需特征的农牧区分散民居风电供暖匹配性研究”(2020LH05002)。

摘　　要：为了改善蒙东牧区冬季供暖存在的室内地面局部过热和热舒适度差的问题,文中以牧区典型户用生物质燃料地下燃池-烟道供暖系统为研究对象,通过现场实际测量和ANSYS数值模拟相结合的方法,采用地面温度场分布、地面瞬时温度、地面瞬时平均温度和地面瞬时温度标准差等指标,分析了现状烟道模型和改进后的3种模型的地面温度分布情况。结果表明:通过对4种不同模型烟道和地面的温度场分析对比可知,加入导烟墙可有效降低地面温度,3种改进模型地面温度分布情况优于现状烟道,地面的局部过热现象得到改善,地面温度分布比较均匀;改进模型Ⅲ地面测点的最大温差为4.1℃,平均温度温差为1.6℃,温度变化幅度较小;改进模型Ⅲ在卧室2、卧室1、客厅的地面瞬时平均温度值分别为29.85℃、28.95℃、29.65℃,都在人员停留区的适宜范围内;地面瞬时温度标准差最高为3.2℃,最低为0.2℃,随燃料燃烧的时间变化幅度较小,改善了室内地面温度的均匀性,提升了牧区室内的热舒适度。In order to improve the problems of local overheating and poor thermal comfort of indoor ground in winter heating in eastern Mongolia Pastoral Area,this paper,taking the typical household biomass fuel underground fuel pool-flue heating system in pastoral area as the research object,through the field measurement and ANSYS numerical simulation,and using the ground temperature field distribution,ground instantaneous temperature,average ground instantaneous temperature,ground instantaneous temperature standard deviation and other index,analyzed the ground temperature distribution of the current flue model and the improved three models.The results show that,by analyzing and comparing the temperature fields of four different model flue and ground,adding a smoke guide wall can effectively reduce the ground temperature.The ground temperature distribution of the three improved models is better than the current flue,the local overheating is improved,and the ground temperature distribution is relatively even.The maximum temperature difference of the ground measuring points of the improved model III is 4.1℃,the average temperature difference is 1.6℃,and the temperature change range is relatively small.The instantaneous average ground temperature values of improved model III in bedroom 2,bedroom 1,and the living room are 29.85℃,28.95℃,and 29.65℃respectively,which are all within the appropriate temperature range for personnel staying area.The maximum standard deviation of ground instantaneous temperature is 3.2℃and the minimum is 0.2℃.The variation range with the time of fuel combustion is small,improving the uniformity of indoor ground temperature and indoor thermal comfort in pastoral areas.

关 键 词：生物质燃料 燃池-烟道供暖系统 局部过热 ANSYS数值模拟 地面温度场 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]