摘要
温度梯度型热流计由于其价格低廉、应用方便等特点在热工测试中被广泛的运用,然而在实际工程运用当中其精度往往得不到保证。建立了典型的热流计片测试的数学模型,在非稳态条件下对其误差进行分析研究。最后得出结论,热流计片本身的热工属性以及不同的边界条件对于热流计片的现场测试精度都有很重大的影响。
Owing to its low cost and convenient application, the temperature gradient type heat flow meter is widely used in thermal test. However, the accuracy is often not guaranteed in practical engineering application. In this paper, the mathematical model of a typical heat flow meter is established, then the error is analyzed in the condition of unsteady state. In the end of this paper, the thermal properties of heat flow meter and different boundary conditions are very important to the accuracy of the test.
出处
《制冷与空调（四川）》
2017年第4期374-378,共5页
Refrigeration and Air Conditioning
关键词
温度梯度型热流计片
非稳态
误差分析
the temperature gradient type heat flow meter
unsteady state
error analysis
