为了解决空气源热泵常规供暖过程中室内温度分层明显和舒适性差的问题，本项目提出了直膨式空气源热泵墙面板辐射供暖系统。采用理论分析、数值模拟和实验研究相结合的方法，开展了供暖新方式下室内环境温度动态变化规律与优化调控方法研究。首先，模拟和实验研究墙面辐射板换热特性，阐明不同工况下墙面辐射板供暖过程中对流与辐射换热量分配规律；其次，建立室内温度动态变化数学模型和搭建供暖新方式下室内温度变化测试试验台，揭示不同参数对辐射板换热性能和室内温度变化的影响规律；最后，基于改善室内供暖热环境和降低建筑供暖能耗的目标，明确墙面辐射板结构参数的优化设计方法，提出针对典型建筑气候区的直膨式空气源热泵墙面板辐射供暖运行方式和控制策略。本项目的研究工作将有效改善空气源热泵供暖房间的室内热环境，从而推动其在建筑供暖和节能中的应用。

The indoor environment, which is heated by conventional air source heat pump (ASHP), is always deteriorated due to high temperature gradient. To solve this problem, a novel direct- expansion air source heat pump using wall radiant panel as the condenser is proposed. In this project, the dynamic variation and optimal regulation of indoor temperature are studied using both theoretical and experimental investigation. Firstly, the heat transfer characteristics of wall radiant panel is studied, and its convection heat and radiant heat are obtained. Secondly, the numerical model of indoor temperature is established, and the testing rig for measuring the variation of indoor temperature under the novel heating method is also built up. Based on the studied results, the influence of parameters, such as outdoor air temperature, the wall surface temperature, the heating capacity of ASHP unit, etc., on heating performance of the wall radiant panel and indoor air temperature are indicated. Finally, the optimized designed method for the wall radiant panel as well as the operation mode and optimal regulation of the novel system are given based on optimized indoor heating environment and decreased heating consumption. The studied results are useful to improve the indoor environment when using this novel system, and further promote the application of air source heat pump in building heating and energy saving.