Research On The Indoor Thermal Environment Of Additional Basement Passive Solar House

As our economy enhances constantly,the level of people’s living standards improvesgradually, which leading to building energy consumption increases day by day. Passivesolar house as its energy-saving, environmental-protecting, clean and simple operationalfeatures pleasured by people. But when the solar radiation is weak and the outdoortemperature is extremely low, the passive solar house can not provide heat for residenceconstantly so that causes the indoor temperature in big fluctuations and poor thermalcomfort, and it is also the main and urgent problem of passive solar house. Thissubject inspired by the first generation of the Xinjiang Production and Construction Corpswho was in low living standards, constructing a large number of "cave" houses. Additionalbasement under the passive solar house as its heat storage;setting up vents to assist upperroom winter heating and summer cooling. This paper selects no basement, solar heatcollection function ordinary house as contrast house and additional basement passive solarhouse for experiment and numerical simulation to explore the passive solar house additionalbasement whether has a good thermal environment or not. In this paper, according to theupper room can fast heating in winter and cooling in summer, five modes were designed inwinter heating and summer ventilation. Through thermal experimental study andCFD numerical simulation to get the optimal mode in winter heating and summerventilation, and comparing experimental research and numerical simulation to verify itsaccuracy. The main research results are as follows:(1) Through the analysis of experimental data and numerical simulation results, theoptimal model of winter heating is mode two, the optimal mode of summer ventilation ismode five;(2) The passive solar house with basement at least can improve contrast house indoorair temperature above 4.1℃ in winter, and reduce indoor contrast house air temperatureabove 6℃ in summer;(3) The passive solar house with basement can reduce contrast house indoortemperature fluctuation effectively and can be controlled within 3℃ in winter;(4) In winter, the same wall temperature fluctuations in west bedroom is under 1.5℃,the temperature fluctuations between different walls is under 2℃, and have a stable thermalfunction; in summer, the same wall temperature fluctuations in west bedroom is under 1.5℃,the temperature fluctuations between different walls is also under 1.5℃, and have a goodventilation function.