辐射供冷空调系统是一种舒适、节能的新型空调系统。为了对比地面、顶板、墙面 3 种辐射供冷末端位置的室内热舒适和能耗情况，以济南市某办公建筑为例，利用仿真软件建立了辐射供冷加独立新风的复合空调系统，对比分析了 3 种辐射供冷方式的室内热舒适和房间能耗。结果表明:3 种辐射供冷模型下，室内的相对湿度都在 40%～60%舒适范围内;墙面和顶板辐射供冷的预测平均投票(Predicted Mean Vote，PMV)值在 0。25～0。50之间，而预测不满意百分数(Predicted Percentage of Dissatisfied，PPD)值小于10%，PMV-PPD指标达到了Ⅰ级，热舒适性较好;在设计日运行时间内，地面、顶板、墙面辐射供冷的总能耗分别为 5。59、6。23、6。16 kW·h，地面辐射供冷的节能性最好。
Analysis of radiation cooling position impact on indoor thermal comfort and energy consumption
Radiant cooling air conditioning system is a comfortable and energy-saving new air conditioning system.In order to compare the indoor thermal comfort and energy consumption of the three radiation cooling ends of the same area,floor,roof and wall on the design day,taking an office building in Jinan city as an example,the paper uses simulation software to establish a composite air conditioning system with radiant cooling and independent fresh air,the indoor thermal comfort and energy consumption of three radiative cooling methods are simulated.Simulation results show that the relative humidity of the three radiative cooling models is in the comfortable range of 40%-60%;The PMV value of wall and roof radiation cooling is between 0.25 and 0.5,PPD value is less than 10%,the PMV-PPD index reaches grade Ⅰ,and the thermal comfort is good;Within the design day operation period,the total energy consumption for radiative cooling on the floor,roof,and wall is 5.59 kW·h,6.23 kW·h,and 6.16 kW·h,respectively,with radiant cooling on the floor demonstrating the best energy efficiency.
万方数据
维普
