Study of Flow and Heat Transfer Performance in Different Detached Cooling Modules
Journal of Energy and Natural Resources
Volume 7, Issue 3, September 2018, Pages: 83-91
Received: Jul. 31, 2018;
Accepted: Aug. 13, 2018;
Published: Dec. 20, 2018
Views 207 Downloads 18
Jiahong Fu, Department of Mechanical Engineering, Zhejiang University City College, Hangzhou, China
Zhang Wei, Power Machinery and Vehicular Engineering Institute, Zhejiang University, Hangzhou, China
Numerical and experimental studies were conducted to investigate the flow and heat transfer performance in different detached cooling modules with multiple types of heat exchangers, considering the typical dual heat exchangers in construction machinery cooling modules as examples. The porous media model was used to simulate the heat exchangers, and the multiple reference frame method was used to simulate fan performance. A numerical simulated model of vehicular cooling module was established and verified by experiment. On the basis of it, the numerical study of vehicular detached cooling modules was carried on. First, the detached cooling modules with serial structure were sat up, the influence of position and quantity of air intakes to cooling performance was studied. Then the detached cooling modules with non-serial structure were established, the influence of the position between heat exchangers (HEs) and fan was taken into account. The analysis showed that when the detached cooling modules were arranged in a tandem structure, the number of cooling air inlets was not effective for the performance improvement. When the same heat exchangers and fan were reconstructed in a non-series configuration, the performance improvement was significantly for the heat exchangers were relatively independent and wouldn’t interfere with each other. However, the requirements for the installation space were also severer. What’s more, the relative position between the heat exchangers also had an obvious influence on its performance. The dual heat exchanger non-series structure detached cooling module scheme had more advantages in performance than that in the single heat exchanger scheme or the tandem scheme, and had a higher cooling efficiency. Comparing to tandem cooling module, the detached cooling module can achieve the same heat dissipation at a lower fan speed, reduce the fan power consumption, and can achieve precise cooling on the basis of the controllable blinds installed at the heat exchanger inlet.
Study of Flow and Heat Transfer Performance in Different Detached Cooling Modules, Journal of Energy and Natural Resources.
Vol. 7, No. 3,
2018, pp. 83-91.
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Hai-Min Shi, Xiao-Li Yu, Yu-Qi Huang, et al. Shroud depth structure of multi-fans cooling package [J]. Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science), 2017, 51(9): 1844-1850 and 1860.
Han Song, Lu Guodong. Intelligent engineering machinery cooling system [P]. China, ZL200920116820.1. 2009-04-02.
Lu Feng, Yu Xiao-li, Lu Guo-dong. Experimental Study On Effect of Encapsulation of Cooling Module for Diesel Engine [J]. Chinese Internal Combustion Engine Engineering, 2012, 33(003): 45-48.
Lu Guo-dong, Yu Xiao-li, Zhang Yi. Wind tunnel test of spacing effects on wheel loader cooling package performance [J]. Journal o f Zhejiang Univ ersity (Engineer ing Science), 2007, (04): 574-576.
Haimin Shi, Xiaoli Yu, Guodong Lu, et al. An experimental study on energy-saving control of multi-fan cooling module [J]. Qiche Gongcheng/Automotive Engineering, 2017, 39(1): 102-106.
Jörg Soldner, Werner Zobel, Michael Ehlers. A Compact Cooling System (CCS™): The Key to Meet Future Demands in Heavy Truck Cooling [C]. SAE Technical Paper, 2001, Paper Number: 2001-01-1709.
Xueping Du, Min Zeng, Qiuwang Wang. Experimental investigation of heat transfer and resistance characteristics of a finned oval-tube heat exchanger with different air inlet angles [J]. Heat Transfer Engineering, 2014, 35(6-8): 703-710.
ANSYS FLUENT ANSYS. 14.5 User’s Guide [M]. ANSYS Inc., 2014.
Kays W M, London A L. Compact Heat Exchangers /-Third Edition [M]. McGraw-Hill Book Company, 1984.
Ge J, Tian W, Qiu S, et al. CFD simulation of secondary side fluid flow and heat transfer of the passive residual heat removal heat exchanger [J]. Nuclear Engineering & Design, 2018, 337:27-37.
Peng W, Li G, Geng J, et al. A strategy for the partition of MRF zones in axial fan simulation [J]. International Journal of Ventilation, 2018(5):1-15.
Fan K, Wang Z, Ouyang S, et al. Change detection of remote sensing images through DT-CWT and MRF [J]. Journal of Remote Sensing, 2017, XLII-1/W1:3-10.
Peter Gullberg, Lennart Löfdahl, Peter Nilsson. Continued Study of the Error and Consistency of Fan CFD MRF Models [J]. SAE, 2010, Paper Number: 2010-01-0553.
Siswantara A I, Budiarso, Darmawan S. Investigation of Inverse-Turbulent-Prandtl Number with Four RNG k-ε Turbulence Models on Compressor Discharge Pipe of Bioenergy Micro Gas Turbine [J]. Applied Mechanics & Materials, 2016, 819:392-400.
Budiarso, Siswantara A I, Darmawan S, et al. Inverse-Turbulent Prandtl Number Effects on Reynolds Numbers of RNG k-Îµ Turbulence Model on Cylindrical-Curved Pipe [J]. Applied Mechanics & Materials, 2015, 758:35-44.
FU Jiahong, YU Xiaoli, LIU Zhentao, et al. Numerical study of flow and heat transfer on construction machinery detached vehicular cooling system [J]. Journal of Central South University (Science and Technology), 2016, 47(6):2119-2124.
FU Jiahong, YU Xiaoli, YAO Lingyu, et al. Numerical comparison of flow and heat transfer in detached cooling module for construction machinery [J]. Journal of Jilin University (Engineering and Technology Edition), 2016, 46(2):451-456.