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Experimental study of solar assisted ground source heat pump system during space heating operation from morning to evening

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Abstract

Experimental investigation of solar assisted ground source heat pump system has been carried out to understand performance variation during space heating for continuous eight hours operation from morning to evening for Indian winter climatic conditions. Heat extraction rate from solar collector and ground exchanger were monitored from 9 AM to 5 PM on hourly basis by measuring the inlet and outlet temperatures of heat transfer fluids. A detailed thermodynamic energy balance carried out on hourly basis indicates maximum heat loss is observed at 12 noon at which maximum heat extraction from solar collector and ground heat exchanger was obtained. Maximum COP of the SAGSHP system is observed at 12 noon for all the three mass flow rates, however, the COP decreases up to 3 % with increase in severity of winter due to increase in heat loss. About 44 % increase in mass flow rate of heat carrying fluids has enhanced the heat extraction rate up to 18 %, resulting in about 3 % increase in room temperature. The SAGSHP system was able to maintain the room temperature at about 20 to 21 °C when the ambient temperature was at about 12 °C.

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Authors and Affiliations

  1. Department of Energy, Tezpur University Napaam, Tezpur, 784028, Assam, India

    Vikas Verma

  2. Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India

    K. Murugesan

Authors
  1. Vikas Verma
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  2. K. Murugesan
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Corresponding author

Correspondence to Vikas Verma.

Additional information

Recommended by Associate Editor Chang Yong Park

Vikas Verma is working as Assistant Professor in Department of Energy Tezpur University, Assam, India. He had obtained his Bachelor’s degree in Mechanical Engineering from Uttar Pradesh Technical University, India, M.Tech. from NIT, Kurukshetra, Haryana, and Ph.D. from IIT Roorkee, India. His research interests are solar energy, ground source heat pump, energy management and energy policy.

Krishnan Murugesan has been working in Mechanical & Industrial Engineering Department of Indian Institute of Technology Roorkee, Roorkee for the past ten years. He is specialized in the field of green sustainable energy technology for space heating/cooling applications, heat and moisture transport through saturated and unsaturated porous media and CFD. He had his post-doctoral expertise in National Taiwan University, Taiwan. He had obtained his Bachelor’s degree in Mechanical Engineering from Madurai Kamaraj University, Madurai, Tamil Nadu, M.Tech. from IIT Bombay, Mumbai and Ph.D. from IIT Madras, Chennai.

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Verma, V., Murugesan, K. Experimental study of solar assisted ground source heat pump system during space heating operation from morning to evening. J Mech Sci Technol 32, 391–398 (2018). https://doi.org/10.1007/s12206-017-1239-1

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  • DOI: https://doi.org/10.1007/s12206-017-1239-1

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