基于风机盘管热风供热系统的温室热环境研究  

Investigation of Thermal Environment in Greenhouse Based on Fan Coil Unit Forced-air Heating System

作　　者：王谦[1] 郭泽宇[1] 吉恒松[1] 成珊[1] 张程程[1] 

机构地区：[1]江苏大学能源与动力工程学院,镇江212013

出　　处：《农业机械学报》2013年第8期219-223,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(51076060;51276084);江苏高校优势学科建设工程资助项目;江苏省工业支撑计划资助项目(BE2010198);江苏大学研究生科研创新计划资助项目(1291130016)

摘　　要：为进一步提高温室供热系统整体供热效率,针对生物质锅炉作为热源、风机盘管作为末端散热装置的温室热风供热系统,建立了试验温室冬季夜间供暖条件下的室内热环境模拟CFD模型,对室内温度场分布进行了数值模拟并与试验结果进行对比。结果表明,二者所描述的温室内温度场的分布趋势相同,各点误差均小于3℃,计算均方根误差为0.66℃,验证了所建CFD模型的有效性。模拟结果表明:采用该热风供热系统可有效提高室内温度,植物生长区域温度范围为12～17℃,植物层温度分布均匀,无较大梯度变化。In order to further improve overall heating efficiency of the greenhouse heating system,a hot air heating system which used the biomass boiler as a heat source and the fan coil as the end of the cooling device was presented.Combined with experiment greenhouse,a CFD model about this greenhouse without plants was set up.After that,a CFD simulation was carried out by using this CFD model.After compared with the simulation results and experimental data,it was found that the overall trend of the temperature in the greenhouse was consistent.Error of each point was less than 3℃,and the root mean square error was 0.66℃.The results indicated that the CFD model was effective.The results showed that the forced-air heating system could effectively improve the indoor temperature.The temperature range of plant growth area was 12 ～ 17℃.The plant canopy temperature was evenly distributed without larger gradient.

关 键 词：温室 热风供热 风机盘管 热环境 计算流体力学 

分 类 号：S625.4[农业科学—园艺学] TP391.9[自动化与计算机技术—计算机应用技术]