农居一体化用能新模式的室内热舒适性模拟

Numerical Simulation on Indoor Thermal Comfort of Rural Residence with New Integrated Heating System

为改善农村冬季室内居住环境、充分利用可再生能源,提出了一种基于生物质成型燃料炉的一体化用能模式,该模式将炊事、散热器、水暖床、热水器等集成为一个系统,并利用Airpak模拟软件对比分析新模式供暖相较传统采暖方式供暖效果的改善情况。模拟结果表明:水暖床表面温度分布的均匀性大为提高,并且该系统房间的温度比传统火炕供暖房间的温度高出5℃左右;传统火炕房间的PMV平均值在-1.19左右,而新模式供暖房间的PMV平均值为-0.10;传统火炕房间的PPD平均值为39.8%,而新模式供暖房间的PPD平均值为13.47%。

In order to improve indoor living environment in rural area in winter and make full use of renewable energy, this paper presents a new integrated rural energy usage mode based on biomass briquette boiler, which integrated cooking, water heating bed, water-water heater exchanger into one system. Airpark software is utilized to simulate heating effect of two living rooms which installed new energy system and traditional Kang-heating system respectively. Simulation results show that the temperature distribution of water heating bed is improved notably, and indoor temperature of room with new heating system is 5 ~C higher than traditional Kang-heating room. The average PMV of traditional Kang-heating room is around -1.19, while the average PMV of room with new heating system is -0,10; and the average PPD of traditional heating room is 39.8%, while the average PPD of the room with new heatin~ s^stem is 13.47%.