Determining the optimal size of a ground source heat pump within an air-conditioning system with economic and emission considerations

Document Type: Research Paper

Authors

Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran

Abstract

One of the most challenging issues in modern-day building energy management involves equipping the buildings with more energy efficient facilities. In this paper, a hybrid system for cooling/heating for a residential building is developed and optimized. The system consists of a ground source heat pump (GSHP) as well as an electric chiller (EC) and boiler. The model is implemented in MATLAB and optimized using NSGA-II. Two economic and environmental objective functions are considered: Net Present Cost (NPC) and Carbon Emission (CE); which are minimized simultaneously.
The results indicated that when the building load is completely met by GSHP, much less carbon is emitted to the environment, while when the majority of the load is provided by EC and boiler, NPC is lower and CE is much higher.

Keywords


[1] Narei H., Ghasempour R., Noorollahi Y., The Effect of Employing Nanofluid on Reducing the Bore Length of a Vertical Ground-Source Heat Pump, Energy Conversion and Management (2016)123: 581-591.

[2] Zeng R., Hongqiang L., Lifang L., Xiaofeng Z., Guoqiang Z., A Novel Method Based on Multi-Population Genetic Algorithm for CCHP–GSHP Coupling System Optimization, Energy Conversion and Management (2015)  105: 1138-1148.

[3]Zhou S., Wenzhi C., Zhisong L., Xianyan L., Feasibility Study on Two Schemes for Alleviating the Underground Heat Accumulation of the Ground Source Heat Pump, Sustainable Cities and Society (2016) 24: 1-9.

[4]Yousefi H., Noorollahi Y., Abedi S., Panahian K., MirAbadi A. H., Abedi S., Economic and Environmental Feasibility Study of Greenhouse Heating and Cooling using Geothermal Heat Pump in Northwest Iran, Proceedings World Geothermal Congress, Melbourne, Australia (2015).

[5]Barbieri E. S., Dai Y. J., Morini M., Pinelli M., Spina P. R., Sun P., Wang R. Z., Optimal Sizing of a Multi-Source Energy Plant for Power Heat and Cooling Generation,Applied Thermal Engineering (2014)71(2): 736-750.

[6]Gabrielli L., Bottarelli M., Financial and Economic Analysis for Ground-Coupled Heat Pumps Using Shallow Ground Heat Exchangers, Sustainable Cities and Society (2016)20: 71-80.

[7] Noorollahi Y., Bigdelou P., Pourfayaz F., Yousefi H., Numerical Modeling and Economic Analysis of a Ground Source Heat Pump for Supplying Energy for a Greenhouse in Alborz Province, Iran, Journal of Cleaner Production (2016)131: 145-154.

[8]Huang B., Mauerhofer V., Life Cycle Sustainability Assessment of Ground Source Heat Pump in Shanghai, China. Journal of Cleaner Production (2016)119: 207-214.

[9] Yousefi H., Roumi S., Tabasi S., Hamlehdar M., Economic and Environmental Analysis of Replacement of Natural Gas Heating System with Geothermal Heat Pump in  District  11  of Tehran, PROCEEDINGS of 41st Workshop on Geothermal Reservoir Engineering, Stanford California (2016).

[10]Desideri U., Sorbi N., Arcioni L., Leonardi D., Feasibility Study and Numerical Simulation of a Ground Source Heat Pump Plant, Applied to a Residential Building, Applied Thermal Engineering (2011) 31(16): 3500-3511.

[11] Garber D., Choudhary R., Soga K., Risk Based Lifetime Costs Assessment of a Ground Source Heat Pump (GSHP) System Design, Methodology and Case Study, Building and Environment (2013) 60: 66-80.

[12] Zeng R., Hongqiang L., Runhua J., Lifang L., Guoqiang Z., A Novel Multi-Objective Optimization Method for CCHP–GSHP Coupling Systems, Energy and Buildings (2016)112: 149-158.

[13] Yousefi H., Ghodusinejad M.H., Kasaeian A.,. Multi-objective optimal component sizing of a hybrid ICE+ PV/T driven CCHP microgrid. Applied Thermal Engineering (2017)122: 126-138.

[14]http://www.eia.gov/oiaf/1605/emission_ factors.html [Accessed February 16, 2016].

[15]2006 IPCC Guidelines for National Greenhouse Gas Inventories, Intergovernmental Panel On Climate Change (2006).