严寒地区近零能耗建筑太阳能新风预热系统供暖效果实测研究

EXPERIMENTAL STUDY ON SOLAR PREHEATING SYSTEM USED IN NEARLY-ZERO-ENERGY BUILDING IN SEVERE COLD AREA

基于青海省某近零能耗建筑冬季测试结果,对测试对象的室内热环境、常规能耗及太阳能保证率等主要指标结果及变化规律进行分析,验证太阳能与新风预热耦合供热系统在该类建筑中的应用效果。测试结果表明,在严寒地区近零能耗建筑中,通过采用补充热源加热,太阳能与新风预热耦合供热系统可有效维持室内热环境稳定性,太阳能保证率至少可达31%以上。

Based on field experiments in a nearly-zero-energy building in Qinghai province,the combination of solar heating and fresh air systems is evaluated by analyzing the indoor thermal environment,energy consumaption and solar fraction.Evaluation result indicate the combination of solar heating and fresh air system can build a steady indoor thermal environment in a nearly-zero-energy building in the severe cold area by using a supplemental heating system.The solar fraction can be over 31%at least.