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Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam

Received: 25 February 2018     Accepted: 11 March 2018     Published: 2 April 2018
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Abstract

This paper presents the results of theoretical and experimental investigation to determine the optimal flow rate of collector loop to improve the performance of a solar hot water system under real weather conditions at Ho Chi Minh City, Vietnam. The optimal flow rate of flat-plate collector loop is researched based on the relationship between the useful heat gain of the flat plate collectors and the electricity consumption of the collector pump. The result of the simulation and experiment shows that the optimal flow rate was determined at the value of 0.132 (kg/s). Besides, the effects of various parameters such as initial water temperature of storage tank, flat plate collector area and volume of storage tank are investigated. Furthermore, the validation of simulation and experiment results of the progress of the water temperature in the storage tank is also evaluated.

Published in American Journal of Engineering and Technology Management (Volume 3, Issue 1)
DOI 10.11648/j.ajetm.20180301.13
Page(s) 29-34
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2018. Published by Science Publishing Group

Keywords

Flat-Plate Collectors, Optimal Flow Rate, Collector Loop, Useful Heat Gain, Electricity Consumption

References
[1] Badescu, V., Optimal control of flow in solar collector systems with fully mixed water storage tanks. Energy Conversion and Management 49, 169–184, 2008.
[2] Saltiel, C., Sokolov, M., Optimal control of a multicomponent solar collector system. Solar Energy 34, 463–473, 1985.
[3] Zhiyong, L., Chao, C., et al., All-glass vacuum tube collector heat transfer model used in forced-circulation solar water heating system. Solar Energy 84, 1413–1421, 2010.
[4] Jordan, U., Vajen, K. Y., Influence of the DHW load profile on the fractional energy saving: A casevstudy of a solar combi-system with TRNSYS simulation. Solar Energy 69, 197-208, 2000.
[5] Furbo, S., Andersen, E., et al., Performance improvement by discharge from different levels in solar storage tanks. Solar Energy 79, 431-439, 2005.
[6] Persson, T., Rönnelid, M., Increasing solar gains by using hot water to heat dishwashers and washing machines. Applied Thermal Engineering 27, 646-657, 2007.
[7] Kovarik, M., Lesse, P. F., Optimal control of flow in low temperature solar heat collector. Solar Energy 18, 431-435, 1976.
[8] Orbach, A., Rorres, C., et al., Optimal control of a solar collector loop using a distributed-lumped model. Automatica 17, 535-539, 1981.
[9] Loomans, M., Visser, H., Application of the genetic algorithm for optimization of large solar hot water systems. Solar Energy 72, 427-439, 2002.
[10] Pichler, M. F., Lerch, W., et al., A novel linear predictive control approach for auxiliary energy supply to a solar thermal combistorage. Solar Energy 101, 203-219, 2014.
[11] Nhut, L. M., Park, Y. C. A Study on Automatic Optimal Operation of a Pump For Solar Domestic Hot Water System. Elsevier, Solar Energy 98, 448–457, 2013.
[12] Sanda, B., Badescu, V., Improving the Performance of Systems with Solar Water Collectors Used in Domestic Hot Water Production. Energy Procedia 112, 398–403, 2017.
[13] Duffie, J. A., Beckman, W. A., 2006. Solar Engineering of Thermal Processes, third ed. John Wiley & Sons, New York.
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  • APA Style

    Le Minh Nhut. (2018). Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam. American Journal of Engineering and Technology Management, 3(1), 29-34. https://doi.org/10.11648/j.ajetm.20180301.13

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    ACS Style

    Le Minh Nhut. Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam. Am. J. Eng. Technol. Manag. 2018, 3(1), 29-34. doi: 10.11648/j.ajetm.20180301.13

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    AMA Style

    Le Minh Nhut. Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam. Am J Eng Technol Manag. 2018;3(1):29-34. doi: 10.11648/j.ajetm.20180301.13

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  • @article{10.11648/j.ajetm.20180301.13,
      author = {Le Minh Nhut},
      title = {Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam},
      journal = {American Journal of Engineering and Technology Management},
      volume = {3},
      number = {1},
      pages = {29-34},
      doi = {10.11648/j.ajetm.20180301.13},
      url = {https://doi.org/10.11648/j.ajetm.20180301.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajetm.20180301.13},
      abstract = {This paper presents the results of theoretical and experimental investigation to determine the optimal flow rate of collector loop to improve the performance of a solar hot water system under real weather conditions at Ho Chi Minh City, Vietnam. The optimal flow rate of flat-plate collector loop is researched based on the relationship between the useful heat gain of the flat plate collectors and the electricity consumption of the collector pump. The result of the simulation and experiment shows that the optimal flow rate was determined at the value of 0.132 (kg/s). Besides, the effects of various parameters such as initial water temperature of storage tank, flat plate collector area and volume of storage tank are investigated. Furthermore, the validation of simulation and experiment results of the progress of the water temperature in the storage tank is also evaluated.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Theoretical and Experimental Investigation on Performance Improvement of Solar Hot Water System Under Real Weather Conditions at Ho Chi Minh City, Vietnam
    AU  - Le Minh Nhut
    Y1  - 2018/04/02
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    N1  - https://doi.org/10.11648/j.ajetm.20180301.13
    DO  - 10.11648/j.ajetm.20180301.13
    T2  - American Journal of Engineering and Technology Management
    JF  - American Journal of Engineering and Technology Management
    JO  - American Journal of Engineering and Technology Management
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    EP  - 34
    PB  - Science Publishing Group
    SN  - 2575-1441
    UR  - https://doi.org/10.11648/j.ajetm.20180301.13
    AB  - This paper presents the results of theoretical and experimental investigation to determine the optimal flow rate of collector loop to improve the performance of a solar hot water system under real weather conditions at Ho Chi Minh City, Vietnam. The optimal flow rate of flat-plate collector loop is researched based on the relationship between the useful heat gain of the flat plate collectors and the electricity consumption of the collector pump. The result of the simulation and experiment shows that the optimal flow rate was determined at the value of 0.132 (kg/s). Besides, the effects of various parameters such as initial water temperature of storage tank, flat plate collector area and volume of storage tank are investigated. Furthermore, the validation of simulation and experiment results of the progress of the water temperature in the storage tank is also evaluated.
    VL  - 3
    IS  - 1
    ER  - 

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Author Information
  • Department of Thermal Engineering, Faculty of Vehicle and Energy Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh, Vietnam

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