Paper Title:
Experimental and Theoretical Research of the Shell Side Heat Transfer Coefficient and Pressure Drop in a Plastic Shell and Tube Heat Exchanger
  Abstract

The aim of this work is to present an experimental research of the shell side heat transfer coefficient and pressure drop in a plastic shell and tube heat exchanger with single segmental baffle. The tube bundle consisted of 110 U-tubes constructed of high-density polyethylene, the inside diameter was 9.2 mm, the tube pitch was 1.5 the out side diameter. The shell was constructed of polypropylene with a diameter of 315 mm. Shell side heat transfer coefficients and pressure drop were determined varying the flow rates. An experimental rig for the experimental research was designed and constructed. The overall experimental rig consisted of two operation cycles. The two fluids used in this system were hot and cold water. The experimental results were compared with theoretical predictions using the Bell-Taborek and Wills and Johnston Methods. The heat transfer coefficient predictions, for Reynolds number greater than 780, showed that the Bell-Taborek and Wills-Johnston methods are in general agreement with the experimental data with only 5% difference, Wills-Johnston overpredicts it and Bell underpredicts it, except at the lower Reynolds number than 780 where there was an average underprediction of 15%. The pressure drop predictions by Wills-Johnston and Bell-Taborek methods were generally acceptable including the inlet and outlet nozzles with the highest experimental data (Reynolds number greater than 780) within a 15% overprediction, however, at the lower data the pressure drop was overpredicted up to 2 times the measured values.

  Info
Periodical
Defect and Diffusion Forum (Volumes 312-315)
Edited by
Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
Pages
187-192
DOI
10.4028/www.scientific.net/DDF.312-315.187
Citation
R. Aguilar Osorio, K. Cliffle, "Experimental and Theoretical Research of the Shell Side Heat Transfer Coefficient and Pressure Drop in a Plastic Shell and Tube Heat Exchanger", Defect and Diffusion Forum, Vols. 312-315, pp. 187-192, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: E. Akpabio, I.O. Oboh, E.O. Aluyor
Abstract:Shell and tube heat exchangers in their various construction modifications are probably the most widespread and commonly used basic heat...
694
Authors: Jin Yun Jiang, Da Ming Wu, Ya Jun Zhang, Jian Zhuang
Abstract:Micro heat exchanger, with its advantages such as small volume, light weight, high efficiency etc. has an increasing demand of market needs...
492
Authors: Xiao Lin Cao, Fang Fang Wang, Si Si Yang, Shuang Jun Cao, Wei Zeng
Abstract:A distributed parameter method has been established for a ground-source heat pump in this paper, with this model, the working process of this...
578
Authors: Hui Xia Lu, Jing Lv, Zhe Bin He, Jin Yu Wang, Jia Wei Zhou
Chapter 15: Heating, Gas Supply, Ventilation and Air Conditioning Works
Abstract:The change of system performance caused by regenerative cycle in different operating conditions was analyzed in this paper, comparing the...
4336
Authors: Tousif Ahmed, Md. Abu Abrar, Md. Tanjin Amin
Chapter 3: General Mechanical Engineering
Abstract:Thermal flow simulation can be used to study the fluid flow and heat transfer for a wide variety of engineering equipment. Flow simulations...
1026