Thermodynamic analysis of utilization of horizontal geothermal heat pump for optimizing energy consumption and reducing CO2 emission (Case study: Shahrood City, Iran)

محورهای موضوعی : Research paper

mohammad mohammadiun ¹ (Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran)
Mojtaba Montazeri ² (Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran)
hamid mohammadiun ³ (Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran)
Meisam sadi ⁴ (Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran)
Mohammad Hossein Dibaee Bonab ⁵ (Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran)

تاریخ دریافت : 1400/11/23 تاریخ پذیرش : 1401/02/15 تاریخ انتشار : 1401/02/11

کلید واژه: thermodynamic analysis, CO2 emission, horizontal geothermal heat pump, Carrier HAP software,

چکیده مقاله :

Today, energy efficiency is one of the global requirements. The purpose of this study is thermodynamic modeling of using a horizontal heat pump system in residential houses in Shahrood climate and to investigate its effect on optimal energy consumption. For this purpose, a heat pump system was designed. Through mathematical functions and modeling equations, the technical, environmental and economic aspects of conventional systems and the proposed model were compared. In order to calculate the hot and cold design loads required in the optimization, Carrier HAP software was used. Initially, a hypothetical residential unit with an area of 96 square meters was designed using Google Sketchup software. The modeling results show that the proposed system (GSHP) is superior to conventional systems in all aspects except one, which is the initial cost of design and construction. So that the reduction of electricity consumption is 11.7% and the reduction of energy consumption is 4.4% and the reduction of carbon dioxide emissions is about 83%. Also, the optimal consumption of heat pump for cooling and heating in Shahrood is 2.8 and 6.3, respectively. Finally, the energy efficiency is 77%. As a result, given the rise in fossil fuel costs, rise in concerns regarding the damages to the environment, and the need of countries for sustainable development, growing tendency to this technology is not far from mind.

منابع و مأخذ:

1. Blum, P., Campillo, G., Kölbel, T. 2011. “Techno-economic and spatial analysis of vertical ground source heat pump systems in Germany,” Energy, vol. 36, no. 5, pp. 3002–3011, 2011.


2. Egg, J., Howard, B. 2010. Geothermal HVAC, Greean Heating and Cooling. Mc Graw Hill, 2010.


3. Green, B.D., Nix, R.G. 2013. “Geothermal — The Energy Under Our Feet,Geothermal Resource Estimates for the United States,” 2013.


4. Kakac, S., Liu, H., Pramuanjaroenkij, A. 2012. Heat exchangers: selection, rating, and thermal design. CRC press, 2012.


5. Karytsas, S., Theodoropoulou, H. 2014. “Public awareness and willingness to adopt ground source heat pumps for domestic heating and cooling,” Renew. Sustain. Energy Rev., vol. 34, pp. 49–57, 2014.


6. Lapanje, A., Rajver, D., Szekely, E. 2013. GEOTHERMAL HEAT PUMPS MANUAL. 2013.


7. Lemmon, E., McLinden, M., Friend, D. 2015. Thermophysical Properties of Fluid Systems, NIST Standard Reference Database Number 69. National Institute of Standards and Technology, 2015.


8. Liu, X., Lu, S., Hughes, P., Cai, Z. 2015. “A comparative study of the status of GSHP applications in the United States and China,” Renew. Sustain. Energy Rev., vol. 48, pp. 558–570, 2015.


9. Lund, J.W., Freeston, D.H., Boyd, T.L. 2015. “Direct utilization of geothermal energy 2015 worldwide review,” in Proceedings World Geothermal Congress, Melbourne, Australia, 19-25 April 2015, 2015, vol. 40, no. 3, pp. 159–180.


10. Luo, J., Rohn, J., Xiang, W., Bayer, M., Priess, A., Wilkmann, L., Steger, H., Zorn, R. 2015. “Experimental investigation of a borehole field by enhanced geothermal response test and numerical analysis of performance of the borehole heat exchangers,” Energy, vol. 84, pp. 473–484, 2015.


11. Sarbu, I. Sebarchievici, C. 2014. “General review of ground-source heat pump systems for heating and cooling of buildings,” Energy Build., vol. 70, pp. 441–454, 2014.


12. Sanaye, S., Niroomand, B. 2010. “Horizontal ground coupled heat pump: Thermal-economic modeling and optimization,” Energy Convers. Manag., vol. 51, no. 12, pp. 2600–2612, 2010.


13. Soni, S.K., Pandey, M., Bartaria, V.N. 2015. “Ground coupled heat exchangers: A review and applications,” Renew. Sustain. Energy Rev., vol. 47, pp. 83–92, 2015.


14. USDOE. 2012. The U.S. Department of Energy, “Geothermal Heat Pumps,” 2012.


15. Yazdan, G.F., Behzad, V., Shiva, M. 2012. “Energy Consumption in Iran: Past Trends and Future Directions,” Procedia - Soc. Behav. Sci., vol. 62, pp. 12–17, 2012.


16. Zhao, Y., Shigang, Z., Xun, L. 2003. “Cost-effective optimal design of groundwater source heat pumps,” Appl. Therm. Eng., vol. 23, no. 13, pp. 1595–1603, 2003.