Experimental Study on Heat Dissipation Performance of Forced Convector with U Shaped Fin-Tube

Forced convector, which is one of the low temperature heating end users, not only high efficient but also conveniently adjustable, fits for low temperature metering heating system which can raise energy efficiency. So in this paper, in order to convenient for engineering application of forced convector, heat dissipation calculation method and heat dissipation characteristic equation are put forward. Heat dissipation performances of forced convector were studied with the two parameters of heat transfer coefficients and mean temperature differences when inlet water temperature is from 45□ to 60□ and water flow rate is from 50 kg/h to 170 kg/h. Experimental results show that: the heat transfer coefficients are almost independent of the mean temperature difference under constant water flow rate, but have significant exponential relationship with variable water flow rate. The final calculation results of heat dissipation characteristic equation of forced convector are closed to experimental data.