scholarly journals Hybrid Solar Geothermal Heat Pump System Model Demonstration Study

2022 ◽  
Vol 9 ◽  
Author(s):  
Yu-Jin Kim ◽  
Libing Yang ◽  
Evgueniy Entchev ◽  
Soolyeon Cho ◽  
Eun-Chul Kang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Ambient Temperature ◽  
Heat Pump ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Source Temperature ◽  
Heating And Cooling ◽  
Geothermal Heat Pump ◽  
Polygeneration System

In this paper, the development and demonstration of a hybrid solar geothermal heat pump polygeneration system is presented. The poly-generation system has been designed, modeled, and simulated in TRNSYS software environment. Its performance was assessed followed by installation and demonstration at a demo site in Cheongju, Korea. The space heating and cooling load of the building is 13.8 kW in heating mode at an ambient temperature of −10.3°C and 10.6 kW in cooling mode at an ambient temperature of 32.3°C. The simulation data were compared with the field demo data using ISO 13256. The results showed that the model data compare well with the demo data both in heating and cooling modes of operation. At a source temperature of 16.7°C, the heat pump lab performance data-based COPc shows 9.9, while demonstration COPc shows 10.3, thus, representing 4.3% relative error. The heat pump source temperature decreased by 4.0°C from 20.9°C to 16.9°C due to ground heat exchanger coupling and resulted in a COPc increase by 13.3% from 8.5 to 9.8. When compared at the design conditions (outside temperature of 32.3°C), the TRSNYS model overestimated the demonstration site data by 12%, 9.3 vs. 8.1 kW with power consumption of 3.1 vs. 2.2 kW. The hybrid polygeneration system power consumption decreased by 1.2 kW when ambient temperature decreased from 35°C to 25°C.

Optimization and energy-economic assessment of a geothermal heat pump system

2020 ◽  
Vol 133 ◽  
pp. 110282 ◽  
Author(s):  
Pooya Farzanehkhameneh ◽  
M. Soltani ◽  
Farshad Moradi Kashkooli ◽  
Masoud Ziabasharhagh
Keyword(s):  
Heat Pump ◽  
Economic Assessment ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Geothermal Heat Pump

An Economical Analysis on a Solar Greenhouse Integrated Solar Assisted Geothermal Heat Pump System

2005 ◽  
Vol 128 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Onder Ozgener ◽  
Arif Hepbasli
Keyword(s):  
Heat Pump ◽  
Cooling System ◽  
Heat Pumps ◽  
Renewable Energy Resources ◽  
Ahp Method ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Economical Analysis ◽  
Geothermal Heat Pump

The main objective in doing the present study is twofold, namely (i) to review briefly the utilization of geothermally heated greenhouses and geothermal heat pumps in Turkey, since the system studied utilizes both renewable energy resources and (ii) to present the Analytical Hierarchy Process (AHP) as a potential decision making method for use in a greenhouse integrated solar assisted geothermal heat pump system (GISAGHPS), which was installed in the Solar Energy Institute of Ege University, Izmir, Turkey. This investigation may also be regarded as the one of the limited studies on the application of the AHP method to GISAGHPs, as no studies on the GISAGHPS have appeared in the literature. In this context, an economic analysis is performed based on the life cycle costing technique first. The results are then evaluated by applying the AHP method to a study, which is a comparative study on the GISAGHPS and split system. The results indicated that the GISAGHPS is economically preferable to the conventional split heating/cooling system under Turkey’s conditions.

scholarly journals Development of Optimal Design Method for Ground-Source Heat-Pump System Using Particle Swarm Optimization

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4850
Author(s):  
Hyeongjin Moon ◽  
Jae-Young Jeon ◽  
Yujin Nam
Keyword(s):  
Renewable Energy ◽  
Heat Pump ◽  
Optimization Design ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Geothermal Heat Pump ◽  
Building Load

The building sector is an energy-consuming sector, and the development of zero-energy buildings (ZEBs) is necessary to address this. A ZEB’s active components include a system that utilizes renewable energy. There is a heat-pump system using geothermal energy. The system is available regardless of weather conditions and time, and it has attracted attention as a high-performance energy system due to its stability and efficiency. However, initial investment costs are higher than other renewable energy sources. To solve this problem, design optimization for the capacity of geothermal heat-pump systems should be performed. In this study, a capacity optimization design of a geothermal heat-pump system was carried out according to building load pattern, and emphasis was placed on cost aspects. Building load patterns were modeled into hospitals, schools, and apartments, and, as a result of optimization, the total cost over 20 years in all building load patterns was reduced.

scholarly journals Development of the Hybrid Operation Method of a Multi-Geothermal Heat Pump System and Absorption Chiller-Heater

Energies ◽  
2015 ◽  
Vol 8 (9) ◽  
pp. 9320-9343 ◽  
Author(s):  
Young-Ju Jung ◽  
Hyo-Jun Kim ◽  
Kyung-Ju Shin ◽  
Jae-Hun Jo ◽  
Yong-Shik Kim ◽  
...  
Keyword(s):  
Heat Pump ◽  
Absorption Chiller ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Operation Method ◽  
Hybrid Operation ◽  
Geothermal Heat Pump
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