0
Research Papers

Investigating the Effect of Soil Type and Moisture on the Performance of a Ground Source Heat Pump System Used for a Greenhouse in Iran

[+] Author and Article Information
Pedram Bigdelou

Department of Renewable Energies and
Environmental Engineering,
Faculty of New Sciences and Technologies,
University of Tehran,
North Kargar Street,
Tehran 14395-1561, Iran
e-mail: pedrambigdelou@ut.ac.ir

Fathollah Pourfayaz

Department of Renewable Energies and
Environmental Engineering,
Faculty of New Sciences and Technologies,
University of Tehran,
North Kargar Street,
Tehran 14395-1561, Iran
e-mail: pourfayaz@ut.ac.ir

Younes Noorollahi

Department of Renewable Energies and
Environmental Engineering,
Faculty of New Sciences and Technologies,
University of Tehran,
North Kargar Street,
Tehran 14395-1561, Iran
e-mail: noorollahi@ut.ac.ir

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received January 16, 2018; final manuscript received July 23, 2018; published online October 15, 2018. Assoc. Editor: Sandip Mazumder.

J. Thermal Sci. Eng. Appl 11(1), 011009 (Oct 15, 2018) (9 pages) Paper No: TSEA-18-1024; doi: 10.1115/1.4041344 History: Received January 16, 2018; Revised July 23, 2018

We investigate the effect of soil type and moisture on the operation of a ground source heat pump (GSHP) system in supplying the energy needs of a greenhouse in Karaj, Alborz province, Iran, in terms of the required length of ground heat exchanger, the working hours, the electricity consumption, as well as the coefficient of performance (COP) of heat pumps. In order to predict the capacity of heat pumps, we use the numerical heat transfer model of Noorollahi et al. (2016, “Numerical Modeling and Economic Analysis of a Ground Source Heat Pump for Supplying Energy for a Greenhouse in Alborz Province, Iran,” J. Cleaner Prod., 131, pp. 145–154) in which the governing equations of heat transfer in the ground heat exchanger are numerically solved through a novel finite difference method. Thermal properties of various soil types, namely sandy soil, sand, silty loam, and silty clay, with three different levels of moisture content referred to as dry, damp, and saturated, are considered as the main inputs for the computer code. The simulations indicate that when moisture is increased from dampness to saturation, the annual working hours of heat pumps decrease by 1.1%, 5.1%, 6.1%, and 4.6%, and their annual electricity consumption is reduced by 2.2%, 10.6%, 12.6%, and 9.7% for sandy soil, sand, silty loam, and silty clay, respectively. Moreover, the average COP of heat pumps increase by 0.9%, 4.0%, 5.2%, and 3.7% in heating mode and 2.4%, 13.0%, 16.5%, and 11.7% in cooling mode for the mentioned soils, respectively.

FIGURES IN THIS ARTICLE
<>
Copyright © 2019 by ASME
Your Session has timed out. Please sign back in to continue.

References

Kasaeian, A. , Barghamadi, H. , and Pourfayaz, F. , 2017, “ Performance Comparison Between the Geometry Models of Multichannel Absorbers in Solar Volumetric Receivers,” Renewable Energy, 105, pp. 1–12. [CrossRef]
Jafari, M. M. , Atefi, G. , Khalesi, J. , and Soleymani, A. , 2012, “ A New Conjugate Heat Transfer Method to Analyse a 3D Steam Cooled Gas Turbine Blade With Temperature-Dependent Material Properties,” Proc. Inst. Mech. Eng., Part C, 226(5), pp. 1309–1320. [CrossRef]
Jafari, M. M. , Atefi, G. A. , and Khalesi, J. , 2012, “ Advances in Nonlinear Stress Analysis of a Steam Cooled Gas Turbine Blade,” Latin Am. Appl. Res., 42(2), pp. 167–175. http://www.scielo.org.ar/scielo.php?pid=S0327-07932012000200010&script=sci_arttext&tlng=pt
Deese, J. , Razi, P. , Muglia, M. , Ramaprabhu, P. , and Vermillion, C. , 2018, “ Fused Closed-Loop Flight Dynamics and Wake Interaction Modeling of Tethered Energy Systems,” ASME Paper No. DSCC2018-9190.
Ciriminna, R. , Meneguzzo, F. , Pecoraino, M. , and Pagliaro, M. , 2017, “ Solar Air Heating and Ventilation in Buildings: A Key Component in the Forthcoming Renewable Energy Mix,” Energy Technol., 5(8), pp. 1165–1172. [CrossRef]
Maleki, A. , and Pourfayaz, F. , 2015, “ Sizing of Stand-Alone Photovoltaic/Wind/Diesel System With Battery and Fuel Cell Storage Devices by Harmony Search Algorithm,” J. Energy Storage, 2, pp. 30–42. [CrossRef]
Dimitrova, E. , Vinklers, J. , Chokani, N. , and Abhari, R. S. , 2015, “ Integrated Biomass Assessment and Optimized Power Generation,” Energy Technol., 3(3), pp. 265–278. [CrossRef]
Ho, I.-H. , and Dickson, M. , 2017, “ Numerical Modeling of Heat Production Using Geothermal Energy for a Snow-Melting System,” Geomech. Energy Environ., 10, pp. 42–51. [CrossRef]
Ahmadi, M. H. , Mehrpooya, M. , and Pourfayaz, F. , 2016, “ Thermodynamic and Exergy Analysis and Optimization of a Transcritical CO2 Power Cycle Driven by Geothermal Energy With Liquefied Natural Gas as Its Heat Sink,” Appl. Therm. Eng., 109, pp. 640–652. [CrossRef]
Lund, J. W. , Freeston, D. H. , and Boyd, T. L. , 2005, “ Direct Application of Geothermal Energy: 2005 Worldwide Review,” Geothermics, 34(6), pp. 691–727. [CrossRef]
Lund, J. W. , Freeston, D. H. , and Boyd, T. L. , 2011, “ Direct Utilization of Geothermal Energy 2010 Worldwide Review,” Geothermics, 40(3), pp. 159–180. [CrossRef]
Lund, J. W. , and Boyd, T. L. , 2016, “ Direct Utilization of Geothermal Energy 2015 Worldwide Review,” Geothermics, 60, pp. 66–93. [CrossRef]
Farkhutdinov, A. , Goblet, P. , de Fouquet, C. , and Cherkasov, S. , 2016, “ A Case Study of the Modeling of a Hydrothermal Reservoir: Khankala Deposit of Geothermal Waters,” Geothermics, 59, pp. 56–66. [CrossRef]
Benli, H. , 2011, “ Energetic Performance Analysis of a Ground-Source Heat Pump System With Latent Heat Storage for a Greenhouse Heating,” Energy Convers. Manage., 52(1), pp. 581–589. [CrossRef]
Benli, H. , 2013, “ A Performance Comparison Between a Horizontal Source and a Vertical Source Heat Pump Systems for a Greenhouse Heating in the Mild Climate Elaziğ, Turkey,” Appl. Therm. Eng., 50(1), pp. 197–206. [CrossRef]
Li, H. , Nagano, K. , Lai, Y. , Shibata, K. , and Fujii, H. , 2013, “ Evaluating the Performance of a Large Borehole Ground Source Heat Pump for Greenhouses in Northern Japan,” Energy, 63, pp. 387–399. [CrossRef]
Boughanmi, H. , Lazaar, M. , Bouadila, S. , and Farhat, A. , 2015, “ Thermal Performance of a Conic Basket Heat Exchanger Coupled to a Geothermal Heat Pump for Greenhouse Cooling Under Tunisian Climate,” Energy Build., 104, pp. 87–96. [CrossRef]
Ozgener, O. , and Hepbasli, A. , 2007, “ A Parametrical Study on the Energetic and Exergetic Assessment of a Solar-Assisted Vertical Ground-Source Heat Pump System Used for Heating a Greenhouse,” Build. Environ., 42(1), pp. 11–24. [CrossRef]
Hepbasli, A. , 2011, “ A Comparative Investigation of Various Greenhouse Heating Options Using Exergy Analysis Method,” Appl. Energy, 88(12), pp. 4411–4423. [CrossRef]
Mehrpooya, M. , Hemmatabady, H. , and Ahmadi, M. H. , 2015, “ Optimization of Performance of Combined Solar Collector-Geothermal Heat Pump Systems to Supply Thermal Load Needed for Heating Greenhouses,” Energy Convers. Manage., 97, pp. 382–392. [CrossRef]
Cui, P. , Yang, H. , and Fang, Z. , 2006, “ Heat Transfer Analysis of Ground Heat Exchangers With Inclined Boreholes,” Appl. Therm. Eng., 26(11–12), pp. 1169–1175. [CrossRef]
Li, Z. , and Zheng, M. , 2008, “ Development of a Numerical Model for the Simulation of Vertical U-Tubes Ground Heat Exchangers,” Appl. Therm. Eng., 29(5–6), pp. 920–924.
Philippe, M. , Bernier, M. , and Marchio, D. , 2009, “ Validity Ranges of Three Analytical Solutions to Heat Transfer in the Vicinity of Single Boreholes,” Geothermics, 38(4), pp. 407–413. [CrossRef]
Fontaine, P. , Marcotte, D. , Pasquier, P. , and Thibodeau, D. , 2011, “ Modeling of Horizontal Geoexchange Systems for Building Heating and Permafrost Stabilization,” Geothermics, 40, pp. 211–220.
Fujii, H. , Nishi, K. , Komaniwa, Y. , and Chou, N. , 2012, “ Numerical Modeling of Slinky-Coil Horizontal Ground Heat Exchangers,” Geothermics, 41, pp. 55–62. [CrossRef]
Hu, P. , Yu, Z. , Zhu, N. , Lei, F. , and Yuan, X. , 2013, “ Performance Study of a Ground Heat Exchanger Based on the Multipole Theory Heat Transfer Model,” Energy Build., 65, pp. 231–241. [CrossRef]
Rees, S. J. , and He, M. , 2013, “ A Three-Dimensional Numerical Model of Borehole Heat Exchanger Heat Transfer and Fluid Flow,” Geothermics, 46, pp. 1–13. [CrossRef]
Leong, W. H. , Tarnawski, V. R. , and Aittomäki, A. , 1998, “ Effect of Soil Type and Moisture Content on Ground Heat Pump Performance,” Int. J. Refrig., 21(8), pp. 595–606. [CrossRef]
Li, X. , Chen, Y. , Chen, Z. , and Zhao, J. , 2006, “ Thermal Performance of Different Types of Underground Heat Exchangers,” Energy Build., 38(5), pp. 543–547. [CrossRef]
Shang, Y. , Li, S. , and Li, H. , 2011, “ Analysis of Geo-Temperature Recovery Under Intermittent Operation of Ground-Source Heat Pump,” Energy Build., 43(4), pp. 935–943. [CrossRef]
Choi, J. C. , Lee, S. R. , and Lee, D. S. , 2011, “ Numerical Simulation of Vertical Ground Heat Exchangers: Intermittent Operation in Unsaturated Soil Conditions,” Comput. Geotechnics, 38(8), pp. 949–958. [CrossRef]
Simms, R. B. , Haslam, S. R. , and Craig, J. R. , 2014, “ Impact of Soil Heterogeneity on the Functioning of Horizontal Ground Heat Exchangers,” Geothermics, 50, pp. 35–43. [CrossRef]
Chong, C. S. A. , Gan, G. , Verhoef, A. , Garcia, R. G. , and Vidale, P. L. , 2013, “ Simulation of Thermal Performance of Horizontal Slinky-Loop Heat Exchangers for Ground Source Heat Pumps,” Appl. Energy, 104, pp. 603–610. [CrossRef]
Beier, R. A. , and Holloway, W. A. , 2015, “ Changes in the Thermal Performance of Horizontal Boreholes With Time,” Appl. Therm. Eng., 78, pp. 1–8. [CrossRef]
Noorollahi, Y. , Bigdelou, P. , Pourfayaz, F. , and Yousefi, H. , 2016, “ Numerical Modeling and Economic Analysis of a Ground Source Heat Pump for Supplying Energy for a Greenhouse in Alborz Province, Iran,” J. Cleaner Prod., 131, pp. 145–154. [CrossRef]
Caneta Research Inc., 2015, “GS2000™ Ground Heat Exchanger Design Program,” Caneta Research Inc., Mississauga, ON, Canada, accessed Aug. 2015, http://www.canetaenergy.com

Figures

Grahic Jump Location
Fig. 1

Greenhouse and GHE structure

Grahic Jump Location
Fig. 2

Fan coils arrangement inside the greenhouse

Grahic Jump Location
Fig. 3

The grid used for discretizing the heat transfer equations

Grahic Jump Location
Fig. 4

Effect of soil moisture on the required length of GHE for meeting the heating and cooling of the greenhouse

Grahic Jump Location
Fig. 5

Working hours of GSHPs for dry sandy soil (simulation from Sept. 23, 1985–2010)

Grahic Jump Location
Fig. 6

Electricity consumption of GSHPs for dry sandy soil (simulation from Sept. 23, 1985–2010)

Grahic Jump Location
Fig. 7

Daily average COP of GSHPs for dry sandy soil (simulation from Sept. 23, 1985–2010)

Grahic Jump Location
Fig. 8

Effect of soil moisture on the daily average COP of GSHPs (simulation from Sept. 23, 1985–2010)

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In