Analysis of Convective Boiling Heat Transfer Coefficient Correlation of R290

Authors

  • Nik Aizuddin Faculty of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Normah Mohd Ghazali Faculty of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor
  • Yushazaziah Mohd Yunos Faculty of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor

Keywords:

R290, asymptotic, heat transfer coefficient, small tube, two-phase flow

Abstract

Currently, there exist differences between the experimental data and predicted heat transfer coefficient for small channels with continuous modifications and development to reduce them. Accurate prediction of two-phase boiling heat transfer coefficient is important to avoid under or over designing the system. This study was done to improve the two-phase flow boiling heat transfer coefficient correlation based on asymptotic approach which involves both nucleate boiling and convective heat transfer mechanisms, for refrigerant R290. This study utilized the single objective optimization in Genetic Algorithm (GA) for parameter optimization to achieve minimized mean absolute error (MAE), the absolute difference between the predicted coefficient and the experimental data. Investigations consist of different input conditions for channel inner diameter of 3 mm and saturated temperature of 10°C. The improved correlation shows a good agreement within 10% error for mass flux at 150 and 200 kg/m2s with heat flux of 15 kW/m2. It also shows a good agreement within 10% error for heat flux of 5 and 10 kW/m2 at mass flux of 100 kg/m2s. The new correlation has low MAE with expected patterns and trends when the data involves vapor quality at a range of 0 < x < 0.8. The new correlation may be used to predict the heat transfer coefficient of R290 in the analysis of heat transfer in a small channel within the operating conditions investigated.

References

Choi K.I., Oh J.T., Saito K. and Jeong J.S., 2014. Comparison of Heat Transfer Coefficient During Evaporation of Natural Refrigerants and R-1234yf in Horizontal Small Tube, International Journal of Refrigeration, 41: 210–218.

Pamitran A.S., Choi K.I. and Oh J.T., 2011. Evaporation Heat Transfer Coefficient in Single Circular Small Tubes for Flow Natural Refrigerants of C3H8, NH3, and CO2, International Journal of Multiphase Flow, 37(7): 794–801.

Oh J.T., Pamitran A.S., Choi K.I. and Hrnjak P., 2011. Experimental Investigation on Two-Phase Flow Boiling Heat Transfer of Five Refrigerants in Horizontal Small Tubes of 0.5, 1.5 and 3.0 mm Inner Diameters, International Journal of Heat and Mass Transfer, 54(9-10): 2080–2088.

Yunos Y.M., Ghazali N.M., Pamitran A.S. and Novianto S., 2017. Analysis of the Two-Phase Heat Transfer Coefficient of Propane in A Small Channel, Energy Procedia, 105: 4635–4640.

Shah M.M., 2017. New Correlation for Heat Transfer during Subcooled Boiling in Plain Channels and Annuli, International Journal of Thermal Sciences, 112: 358–370.

Mohd-Yunos Y., Mohd-Ghazali N., Mohamad M., Pamitran A.S. and Oh J.T., 2018. Prediction of the Heat Transfer Coefficient in a Small Channel with the Superposition and Asymptotic Correlations, International Journal of Air-Conditioning and Refrigeration, 26(01): 1850001.

La Rocca V. and Panno G., 2011. Experimental Performance Evaluation of a Vapour Compression Refrigerating Plant When Replacing R22 with Alternative Refrigerants, Applied Energy, 88(8): 2809–2815.

Wärmepumpentest and Ausbildungszentrum (WPZ) Töss, Zusammenstellung von Leistunsdaten von Wärmenpumpen, Töss, Schweiz, 2002.

Rice C.K., 1997. DOE/ORNL Heat Pump Design Model, Overview and Application to R-22 Alternatives, in 3rd International Conference on Heat Pumps in Cold Climates, Wolfville, Nova Scotia, Canada, 43-66.

Castro J.B., Urchueguia J.F., Corberán J.M. and Gonzálvez J., 2005. Optimized Design of A Heat Exchanger for An Air-to-Water Reversible Heat Pump Working with Propane (R290) as Refrigerant: Modelling Analysis and Experimental Observations, Applied Thermal Engineering, 25(14–15): 2450–2462.

Padalkar A.S., Mali K.V. and Devotta S., 2014. Simulated and Experimental Performance of Split Packaged Air Conditioner using Refrigerant HC-290 as A Substitute for HCFC-22, Applied Thermal Engineering, 62(1): 277–284.

Kim S.M. and Mudawar I., 2013. Universal Approach to Predicting Saturated Flow Boiling Heat Transfer in Mini/Micro-Channels–Part II. Two-Phase Heat Transfer Coefficient, International Journal of Heat and Mass Transfer, 64: 1239–1256.

Churchill S.W. and Usagi R., 1972. A General Expression for the Correlation of Rates of Transfer and Other Phenomena, AIChE Journal, 18(6): 1121–1128.

Downloads

Published

2019-05-09

How to Cite

Aizuddin, N., Mohd Ghazali, N., & Mohd Yunos, Y. (2019). Analysis of Convective Boiling Heat Transfer Coefficient Correlation of R290. Jurnal Mekanikal, 41(1). Retrieved from https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/321

Issue

Section

Mechanical

Similar Articles

<< < 5 6 7 8 9 10 11 12 13 14 > >> 

You may also start an advanced similarity search for this article.