Advertisement

Theoretical Modeling of Phase Change Material-Based Space Heating Using Solar Energy

Conference paper
  • 162 Downloads
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

Recently, renewable sources of energy, particularly solar thermal energy, have gained significant attention for developing heating and cooling mechanisms for buildings. Present work aims at developing a theoretical model for space heating based on phase change material (PCM) using solar energy in winter conditions for northern region of India. The system has PCM container placed inside the room near the wall, which receives heat from concentrating solar system during the daytime. After achieving the temperature of PCM above its melting point using the solar system, the stored heat of PCM is released to the room ambient during the nighttime when the room ambient is at lower temperature. OM-37, having melting temperature of 37 °C, has been used as a PCM for the current research work. The numerical investigation of the system shows that temperature of room reaches to 23–24 °C from 15 °C in 4–6 h of operation due to high latent heat capacity of the PCM and thus ensuring thermal comfort of occupants.

Keywords

Solar energy Phase change material (PCM) Space heating Solar parabolic trough 

Nomenclature

ρ

Fluid density (kg m−3)

p

Static pressure (N m−2)

h

Sensible enthalpy (J kg−1)

k

Thermal conductivity (W m−1 K−1)

β

Thermal expansion coefficient (K−1)

μ

Dynamic viscosity (kg m−1 s−1)

Amush

Mushy zone constant (kg m−3 s−1)

\(\vec{\nu }\)

Velocity component (m s−1)

\(\overline{\overline{\tau }}\)

Stress tensor (N m−2)

H

Enthalpy (J kg−1)

T

Temperature (K)

γ

Liquid fraction

Subscripts

Ref

Reference

s

Solidus of the PCM

l

Liquids of the PCM

Notes

Acknowledgements

The authors gratefully acknowledge the financial support by a grant from the Science and Engineering Research Board, Department of Science and Technology, India, under the grant number SB/FTP/ETA-0311/2013.

References

  1. 1.
    T. Ajit, Solar Radiant Energy Over India (New Delhi, India, 2009)Google Scholar
  2. 2.
    B. Sanda, Solar air collectors for space heating and ventilation applications—performance and case studies under romanian climatic conditions. Energies 7, 3781–3792 (2014)CrossRefGoogle Scholar
  3. 3.
    W.R. Tyfour, T. Ghassan, K. Amer, Design and testing of a ready-to-use standalone hot air space heating system. Energy Procedia 74, 1228–1238 (2015)Google Scholar
  4. 4.
    S. Klein, W. Beckman, J. Duffie. A design procedure for solar heating systems. Solar Energy 18, 113–127 (1975)Google Scholar
  5. 5.
    A. Waqas, S. Kumar, Phase Change material (PCM)—based solar air heating system for residential space heating in winter. Int. J. Green Energy 10(4), 402–426 (2013)Google Scholar
  6. 6.
    E. Osterman, V. Butala, U. Stritih, PCM thermal storage system for ‘free’ heating and cooling of buildings. Energy & Build. 106, 125–133 (2015)Google Scholar
  7. 7.
    D. Ling, G. Mo, Q. Jiao, J. Wei, X. Wang, Research on solar heating system with phase change thermal energy storage. Energy Procedia 91, 415–420 (2016)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringShiv Nadar UniversityGautam Buddha NagarIndia

Personalised recommendations