Investigation of Effective Parameters on the Human Body Exergy and Energy Model

  • Azadeh ShahidianEmail author
  • Zahra Abbasi
Part of the Green Energy and Technology book series (GREEN)


Human body acts as a heat engine and thermodynamically could be considered as an open system. The energy conversion and exergy analysis is obtained by applying the first and second laws of thermodynamic for this open system. The second law of thermodynamics introduces the useful concept of exergy. It enables the determination of the exergy consumption within the human body dependent on the human body parameters and environmental factors.

Energy generated by metabolism is an important factor on exergy efficiency and entropy generation of the body. Age is one of the parameters which has an effect on metabolism. In this paper, the thermal behavior of the human body is stimulated with two node models, and the human body parameters like age, mass, length, and weight are considered. The results indicate that the exergy efficiency increases until youth stage and after that it decreases during life span.


Exergy efficiency Age Human body 


  1. Caliskan, H.: Energetic and exergetic comparison of the human body for the summer season. Energy Convers. Manag. 76, 169–176 (2013)CrossRefGoogle Scholar
  2. Fabbri, K.: A Brief History of Thermal Comfort: From Effective Temperature to Adaptive Thermal Comfort (Chapter 2). In: Indoor Thermal Comfort Perception, pp. 7–23. Springer International Publishing Switzerland (2015).
  3. Fanger, P.O.: Thermal comfort. McGraw-Hill, New York (1973)Google Scholar
  4. Harris, J.A., Benedict, F.G.: A Biometric Study of Human Basal Metabolism. Proc. Natl. Acad. Sci. 4(12), 370–373 (1918)CrossRefGoogle Scholar
  5. ISO7730: Ergonomics of the Thermal Environment-Analytical Determination and Interpretation of Thermal Comfort Using Calculation of the PMV and PPD Indices and Local Thermal Comfort Criteria. International Standard Organization for Standardization, Geneva (2005)Google Scholar
  6. Mady, C.E.K., Olivera, S. Jr: Human body exergy metabolism. In: International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, Perugia, pp. 160-1–160-13 (2012)Google Scholar
  7. McIntyre, D.A., Grifths, I.D.: Subjective response to radiant and convective environments. Environ. Res. 5, 471–482 (1972)CrossRefGoogle Scholar
  8. McNall, P.E., Biddision, R.E.: Thermal and comfort sensations of sedentary persons exposed to asymmetric radiant fields. ASHRAE Trans. 76, 123–136 (1970)Google Scholar
  9. McNall, P.E., Schlegal, J.C.: The relative effects of convection and radiation heat transfer on thermal comfort (thermal neutrality) for sedentary and active human subjects. ASHRAE Trans. 74, Part II (1968)Google Scholar
  10. Prek, M.: Thermodynamical analysis of human thermal comfort. Energy. 31(5), 732–743 (2006)CrossRefGoogle Scholar
  11. Prek, M., Butala, V.: Principles of exergy analysis of human heat and mass exchange with the indoor environmental. Int. J Mass Transf. 48, 731–739 (2010)CrossRefGoogle Scholar
  12. Prigogine, I.T., Wiam, J.: Biologic Thermodynamique des phenomenes irreversibles. Exp. Dermatol. 2, 451–453 (1946)Google Scholar
  13. Saito, M., Shukuya, M., Shinohara, T.: Exergy Balance Of Human Body And The Associated Thermal Sensation. J. Archit. Plann. (Transactions of AIJ). 65(534), 17–23 (2000)CrossRefGoogle Scholar
  14. Schordinger, E.: What is Life? The Physical Aspects of Living. Cambridge University Press, Cambridge (1944)Google Scholar
  15. Shukuya, M., Iwamatsu, T., Asada, H.: Development of human-body exergy balance model for a better understanding of thermal comfort in the built environment. Inter. J. Energy. 11(4), 493 (2012)Google Scholar
  16. Shukuya, M., Saito, M., Isawa, K., Iwamtsu, T., Asada, H.: Human-body exergy Balance and thermal comfort. Draft report for IEA/ECBCS/Annex 49. 38, 20–23 (2009)Google Scholar
  17. Simone, A., Olesen, B.W.: An experimental study of thermal comfort at different combinations of air and mean radiant temperature. In: Healthy Buildings Conferences (HB 2009) (2009)Google Scholar
  18. Simone, A., Kolarik, J., Iwamatsu, T., Asada, H., Dovjak, M., Schellen, L., Shukuya, M., Olesen, B.W.: An investigation on the assessed thermal sensation an human body exergy consumption rate. Proceedings Clima 2010 - 10th REHVA World Congress: Sustainable energy use in buildings, Antalya, Turkey (2010)Google Scholar
  19. Tokunaga, K., Shukuya, M.: Human-body exergy balance calculation under un-steady state conditions. Build. Environ. 46(11), 2220–2229 (2011)Google Scholar

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.K. N. Toosi University of Technology, Mechanical EngineeringTehranIran
  2. 2.Iran University of Science and Technology, Mechanical EngineeringTehranIran

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