A Simple Model Used to Predict the Thermal Performance of Flat-Plate Closed-Loop Pulsating Heat Pipe

Abstract:

The thermal performance Rov of Flat-Plate Closed-Loop Pulsating Heat Pipe(FCLPHP) are effected by several elements such as the heat load Q, the tilt angle θ and the filling ratio F, they are interacted each other. In order to predict the effect of Q and θ on the thermal performance at locations Q and θ other than the experimental data conditions, and to study the relationship among the Rov, Q and θ in the range of the experimental data, we need a fitted regression model to estimate the function relationship that describes the data. The postulated depends on the range of the regression variables encountered in the data. In this paper, a simple model was developed. Since the coefficients in the model have been estimated from the experimental data, studies were carried out on an experimental set-up. FC72 was employed as working fluid. Method of least squares was used for building the model. By using the model, effects of the heat load and the tilt angle on the thermal performance of FCLPHP were discussed. It was found that the tilt angle had minimum value in a certain heat load in the experimental range (θ=30° -70°), and it increases with the increase of heat load. A sensitivity analysis was done with the model.

• Periodical: Applied Mechanics and Materials (Volumes 316-317)
• Pages: 7-12
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.316-317.7
• Online since: April 2013
• Authors: Qing Ping Wu, Rui Xiang Wang, Xiao Peng Liu, Ya Jun Li, Rong Ji Xu, Yan Zhong Li
• Keywords: Overall Thermal Resistance, Pulsating Heat Pipes, Regression, Thermal Performance

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