Browse > Article
http://dx.doi.org/10.17664/ksghe.2022.18.2.010

An Applicability Analysis of River Water Source Heat Pump System using EnergyPlus Simulation  

Sohn, Byonghu (Department of Building Energy Research, KICT)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.18, no.2, 2022 , pp. 10-21 More about this Journal
Abstract
A water source heat pump (WSHP) system is regarded as an energy-efficiency heating and cooling supply system for buildings due to its high energy efficiency and low greenhouse gas emissions. Recently, water sources such as river water, lake water, and raw water are attracting attention as heat sources for a heat pump system in Korea. This paper analyzed the applicability of a river water source heat pump system (RSHP). The river water temperature level was compared with the outdoor air and ground temperature levels to present applicability. In addition, the cooling and heating performance were compared through a simulation approach for the RSHP and a ground source heat pump (GSHP) applied to a large-scale office building. To compare the temperature level, the actual data were applied to the river water and the outdoor air, while the simulation results were applied to the ground circulation water. The results showed that the change in river water temperature throughout the year was similar to the change in outdoor air temperature. However, unlike the outdoor air temperature, the difference between the hourly and daily average river water temperatures was not large. The temperature level of river water was lower during the heating season and somewhat higher during the cooling season than that of the ground circulation water. Finally, the performance of the RSHP system was 13.4% lower than that of the GSHP system on an annual-based.
Keywords
Water source; River water temperature; Heat pump; Performance; EnergyPlus simulation; Applicability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Jung, Y., Kim, J., Kim, H., Nam, Y., Cho, H., and Lee, H., 2021, Comprehensive multi-criteria evaluation of water source heat pump systems in terms of building type, water source, and water intake distance, Energy and Buildings, Vol. 236, 110765.   DOI
2 Zhang, Y., Akkurt, N., Yuan, J., Xiao, Z., Wang, Q., and Gang, W., 2020, Study on model uncertainty of water source heat pump and impact on decision making, Energy and Buildings, Vol. 216, 109950.   DOI
3 Liu, Z., Tan, H., and Li, Z., 2017, Heating and cooling performances of river-water source heat pump system for energy station in shanghai, Procedia Engineering, Vol. 205, pp. 4074-4081.   DOI
4 You, T., Wang, B., Wu, W., Shi, W., and Li, X., 2015, Performance analysis of hybrid ground-coupled heat pump system with multi-functions, Energy Conversion and Management. Vol. 92, pp. 47-59.   DOI
5 Gang, W., Wang, J., and Wang, S., 2014, Performance analysis of hybrid ground source heat pump systems based on ANN predictive control, Applied Energy, Vol. 136, pp. 1138-1144.   DOI
6 Jung, J., Nam, J., Jung, S., Kim, J., and Kim, H. S., 2018, Feasibility study on the use of river water hydrothermal energy in Korea: (1) Estimation of the permitted standard discharge and determination of the potential water intake area, New & Renewable Energy, Vol. 14, No. 4, pp. 27-37.   DOI
7 Oh, S., Cho, Y., and Yun, R., 2014, Raw-water source heat pump for a vertical water treatment building, Energy and Buildings, Vol. 68, pp. 321-328.   DOI
8 Lim, H. J., Kong, H. J., and Sohn, B. 2017, Cooling performance of geothermal heat pump using surface water heat exchanger, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 29, No. 6, pp. 316-326.   DOI
9 Kown, Y. and Nam, Y., 2022, Annual performance analysis of river water source heat pump system according to building type and local condition, Korean Journal of Air-Conditioning and refrigeration Engineering, Vol. 34, No. 4, pp. 163-171.   DOI
10 Ministry of Environment, Water Environemnt Information System, http://water.nier.go.kr/
11 Gaia Geothermal, 2020, Ground Loop Design (GLD) Version 10.0.47 Premier Edition, Gaia Geothermal.
12 DesignBuilder, 2019, DesignBuilder V6 Simulation Documentation, DesignBuilder Software Ltd.
13 Zhuang, Z., Li, G., Zhang, Y., and Li, Y., 2015, Optimization study on the heat transfer area of the sewage source heat pump system based on year-round coefficient of performance, Procedia Engineering. Vol. 121, pp. 1535-1543.   DOI
14 Lv, N., Zhang, Q., Chen, Z., and Wu, D., 2017, Simulation and analysis on the thermodynamic performance of surface water source heat pump system, Building Simulation, Vol. 10, pp. 65-73.   DOI
15 Jung, J., Nam, J., Kim, J., Jung, S., and Kim, H. S., 2019, Feasibility study on the use of river water hydrothermal energy in Korea: (2) Impact assessment of the charge in water temperature of return flow on the river environment, New & Renewable Energy, Vol. 15, No. 1, pp. 9-17.
16 Schibuola, H. and Scarpa, M., 2016, Experimental analysis of the performances of a surface water source heat pump, Energy and Buildings, Vol. 113, pp. 182-188.   DOI
17 Sohn, B., 2020, Heating performance analysis of ground-source heat pump (GSHP) system using hybrid ground heat exchanger (HGHE), Transactions of the Korea Society of Geothermal Energy Engineers, Vol. 16, No. 3, pp. 8-16.   DOI
18 Sohn, B. and Kown, H. S., 2014, Performance prediction on the application of a ground-source heat pump (GSHP) system in an office building, Korean Journal of Air-Conditioning and refrigeration Engineering, Vol. 26, No. 9, pp. 409-415.   DOI
19 Ahmadfard, M. and Bernier, M., 2019, A review of vertical ground heat exchanger sizing tools including an intermodel comparison, Renewable and Sustainable Energy Reviews, Vol. 110, pp. 247-265.   DOI
20 Wang, Y., Wong, K. K. L., Liu, Q., Jin, Y., and Tu, J., 2012, Improvement of energy efficiency for an open-loop surface water source heat pump system via optimal design of water-intake, Energy and Buildings, Vol. 51, pp. 93-100.   DOI