| 1. | Economic analysis of low - temperature radiant floor heating and radiator heating systems
地板辐射与散热器供暖系统经济性分析 |
| 2. | The process of indoor air turbulent flow and heating transfer were analyzed in the typical closed room with floor heating room and radiator heating room respectively
利用phoenics3 . 3商品软件中的低雷诺数k -模型对封闭房间室内空气温度场进行了模拟。 |
| 3. | Compared the heating load ( and energy consumption ) of a same room with floor heating or radiator heating under same operative temperature . revealed the energy consumption of floor heating room could reduce 5 % ~ 10 % to radiator heating , and the heating load could reduce 10 % ~ 15 % . the main season of energy efficiency is due to no apparent high temperature zone in floor heating room , which avoid additional heat loss in outside envelopes , rather than the lower of indoor air temperature
利用对连续供暖房间温度场的研究结果，对分别采用上述两种供暖方式的典型房间的热负荷和能耗进行了全面分析后发现：低温地板辐射供暖房间热负荷比散热器供暖房间可降低10 15 ，能耗可降低5 10 ；低温地板辐射供暖房间节能的主要原因并不是由于房间空气温度可以降低，而是消除了室内空气局部高温区，避免了由此产生的在外围护上的附加传热量。 |
| 4. | Compares low - temperature radiant floor heating systems with radiator heating systems in initial investment and yearly operation costs , and analyses their advantages and disadvantages , concludes that the radiator heating system is better in economics than the radiant floor heating systems when the merits of the latter are confirmed
摘要对两种供暖系统进行了初投资和年运行费用比较，同时对其各自的优缺点进行了分析，在肯定了低温地板辐射供暖系统的优点后，得出了散热器供暖系统经济性优于地板辐射供暖系统的结论。 |
| 5. | Energy consumption of heating rooms will increase when air exchange rate become large . because the mechanisms of heating methods used currently , such as radiator heating , ceiling heating and warm - air heating , are different from each - other , the indoor thermal environment is not the same when each one of them employed for room heating . for enhancing energy efficiency of heating rooms , indoor thermal comfort and energy saving effects should be investigated when natural ventilation is used to make a good air quality indoors
房间换气次数的增加势必导致供暖房间能耗加大，顶棚辐射、散热器和热风等三种采暖方式由于供暖机理不同，形成的室内热环境特征不同，通风换气时产生的通风热损失也有所区别，为了提高大换气量房间的供暖节能效果，必须对不同供暖方式在大换气量情况下的热舒适性与节能效应进行研究。 |
| 6. | Set up a mathematical model for indoor thermal environment on the base of analyzing enclosure heat gain and heat loss of each envelope . programs were developed for floor heating and radiator heating respectively . due on higher surface temperature ( or mrt ) in the same room , the calculation results shown the indoor mean air temperature of heating radiator room was 1 ~ 1 . 3 c higher than floor heating room under operative temperature same
对连续供暖房间的热过程进行了分析，根据房间热过程数学模型编程计算结果显示：由于散热器供暖房间各围护结构内表面对人体的平均辐射温度低于低温地板辐射供暖房间，要达到相同的作用温度，散热器供暖室内空气温度应比低温地板辐射供暖房间高1 . 0 1 . 3 。 |
| 7. | The low re k - model in software phoenics3 . 3 were applied to simulating indoor air temperature field in this two kinds of heating room contrastively . it shown that temperature gradient at human altitude in floor heating room is lower 3 ~ 4 c than radiator heating room , temperature adjacent out wall and out window near by radiator is higher 6 ~ 7 c than mean indoor temperature , temperature different of room top with mean indoor temperature in top floor radiator heating room is higher 1 ~ 2 c and thickness is 0 . 3 ~ 0 . 5m thicker than floor heating room
结果显示：在人员活动高度区域内，低温地板辐射供暖房间的室内空气竖向温度梯度比散热器供暖房间小3 4 ；在散热器供暖房间内，靠近散热器的外墙附近和散热器上部的外窗附近空气温度高于室内平均空气温度6 7 ；在顶层房间，散热器供暖房间顶部温度与房间平均温度之差比低温地板辐射供暖房间高1 2 ，高温区厚度比低温地板辐射供暖大0 . 3 0 . 5m 。 |
| 8. | Pmv and the indoor temperature field can be used to evaluate the effect of heating in a large amount air current condition . the result of analysis indicate that the radiation heating and radiator heating have some advantages in such rooms , and hot - air heating is an unsuitable way for room heating
分析结果后认为， pmv和室内温度分布是评价大换气量房间不同供暖方式室内热环境的重要参数，在这类房间中，辐射供暖和散热器供暖将各有优点，而热风供暖则是一种不宜采用的供暖方式。 |
