变频空调与散热器采暖房间温度场对比研究

Comparison Study on Room Temperature Distribution with VRV Air-conditioning Heating and Radiator Heating

针对西安地区某一办公房间采用变频空调或散热器两种采暖方式分别进行了IMP数据采集系统实测与数值模拟的对比研究,结果表明,变频空调采暖时工作区域内温度梯度较大,为3℃左右,散热器采暖时工作区域内温度梯度为0.7℃左右。根据房间实际尺寸建立物理模型并对两种采暖方式的室内温度场和流场进行了数值模拟,模拟结果与实测结果基本吻合。通过数值模拟和分析两种采暖方式的特点及对室内热??的影响,理论上得出散热器采暖方式的室内温度场和流场更加均匀的结果。

The temperature distributions in an office in Xi＇an with radiator heating and VRV air conditioning modes were measured by IMP, respectively. The results show that the value of temperature gradient in the working area was about 3 ℃ with the VRV air conditioning mode and 0.7℃ with the radiator heating mode. A mathematical model was established for the real office, and the indoor temperature field and the velocity field with these two heating modes were simulated. The numerical simulation results are in agreement with the data measured. The features of these heating modes and their influence on the indoor thermal environment were analyzed. Our results indicate that the temperature field and the velocity field in the room with the radiator heating mode may be more uniform than those with the VRV air conditioning mode.