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Experimental investigation for the optimization of heat pipe performance in latent heat thermal storage

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Abstract

We investigated the optimum performance of heat pipe in Latent heat thermal energy storage (LHTES), and compared it with copper pipe. Classical plan of experimentation was used to optimize the parameters of heat pipe. Heat pipe fill ratio, evaporator section length to condenser section length ratio i.e., Heat pipe length ratio (HPLR) and heat pipe diameter, was the parameter used for optimization, as result of parametric analysis. Experiment with flow rate of 10 lit./min. was conducted for different fill ratio, HPLR and different diameter. Fill ratio of 80 %, HPLR of 0.9 and heat pipe with diameter of 18 mm showed better trend in charging and discharging. Comparison between the storage tank with optimized heat pipe and copper pipe showed almost 186 % improvement in charging and discharging time compared with the copper pipe embedded thermal storage. Heat transfer between Heat transferring fluid (HTF) and Phase change material (PCM) increased with increase in area of heat transferring media, but storage density of storage tank decreased. Storage tank with heat pipe embedded in place of copper pipe is a better option in terms of charging and discharging time as well heat storage capacity due to less heat lost. This justifies the better efficiency and effectiveness of storage tank with embedded optimized heat pipe.

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Author information

Authors and Affiliations

  1. BDCOE, RTM Nagpur University, Wardha, 442-102, India

    Chandrakishor Ladekar

  2. PCCOE, S.P. Pune University, Pune, 411-044, India

    Chandrakishor Ladekar

  3. Department of Mechanical Engineering, K. D. K. College of Engineering, RTM Nagpur University, Nagpur, India

    S. K. Choudhary

  4. Mechanical Engineering, B. D. College of Engineering, Sewagram, Wardha, India

    S. S. Khandare

Authors
  1. Chandrakishor Ladekar
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  2. S. K. Choudhary
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  3. S. S. Khandare
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Corresponding author

Correspondence to Chandrakishor Ladekar.

Additional information

Chandrakishor Ladekar is a Research Scholar at BDCOE, RTM Nagpur University, and Assistant Professor in Mechanical Engineering at PCCOE, S.P. Pune University Pune, India. His area of research is heat transfer, heat pipe, energy and thermal storages.

S. K. Choudhary is a Professor in Mechanical Engineering Department, K. D. K. College of Engineering, Nagpur, India. His area of research is heat transfer, heat pipe, energy and power.

S. S. Khandare is Ex. Principal and Professor in mechanical engineering from B.D. College of Engineering, Sewagram Wardha, India. His area of research is heat transfer, heat pipe, thermodynamics and computer aided design.

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Ladekar, C., Choudhary, S.K. & Khandare, S.S. Experimental investigation for the optimization of heat pipe performance in latent heat thermal storage. J Mech Sci Technol 31, 2627–2634 (2017). https://doi.org/10.1007/s12206-017-0505-6

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  • DOI: https://doi.org/10.1007/s12206-017-0505-6

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