中文摘要：

通过对大换气量房间在不同供暖方式下的室内热环境进行实测和分析比较，指出降低通风热损失是提高该类房间供暖节能效果的有效途径．结合围护结构传热机理，在对3种方式的能耗状况进行理论分析的基础上，提出了换气次数的节能临界值，依据该值可判定房间应采用的具有最佳节能效果的供暖方式．

英文摘要：

Indoor thermal environment of a heating room with high air exchanges is tested and discussed in winter season, the result shows that reducing heat consumption during ventilating process is a effective method for enhancing energy efficiencies in such rooms. A formula for calculating critical air exchanges is obtained by analyzing the three heating modes in theory, and when the critical value is determined, the heating mode can be correctly selected.