Heating potential of passive solar building in Lhasa

Tests the indoor thermal environment in two passive solar buildings in Lhasa in winter, of which the results show that the indoor temperature is satisfactory. With a project, analyses the thermal characteristics of the passive solar building, discusses the influences of thermal insulation performance of exterior walls, thermal performance of exterior windows and area ratio of window to wall on the passive solar building, and analyses indoor thermal environment in the passive solar heating building in the coldest month. Advances the feasibility, potential and thermal design elements of passive solar heatings. Points out that all-passive heating in buildings can be achieved in Lhasa and the heating energy consumption in winter can be greatly reduced.