Operational behavior characteristics and energy saving potential of vertical closed loop ground source heat pump system combined with storage tank in an office building

2018 ◽  
Vol 179 ◽  
pp. 239-252 ◽  
Author(s):  
Min Ji Kim ◽  
Byeong Mo Seo ◽  
Jong Man Lee ◽  
Jong Min Choi ◽  
Kwang Ho Lee
Keyword(s):  
Heat Pump ◽  
Storage Tank ◽  
Closed Loop ◽  
Office Building ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Energy Saving Potential ◽  
Ground Source ◽  
Behavior Characteristics

scholarly journals Evaluation of Suitable Areas to Introduce a Closed-Loop Ground Source Heat Pump System in the Case of a Standard Japanese Detached Residence

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4294
Author(s):  
Gaurav Shrestha ◽  
Mayumi Yoshioka ◽  
Hikari Fujii ◽  
Youhei Uchida
Keyword(s):  
Heat Exchange ◽  
Heat Pump ◽  
Closed Loop ◽  
Ground Source Heat Pump ◽  
Standard Size ◽  
Pump System ◽  
Heat Pump System ◽  
The North ◽  
Ground Source ◽  
Suitability Map

Evaluation of appropriate areas to introduce a closed-loop ground-source heat pump (GSHP) system in the case of a standard detached residence was conducted in Akita Plain, Japan. Depth of borehole heat exchanger (BHE) required to use a GSHP system was taken as the suitability index, which is simpler for the general public to understand and to promote the system. Heating and cooling loads of the standard size detached residence were calculated based on the 2013 Energy Conservation Standard. To estimate BHE depths and estimate a suitable area, identical 3D BHE models were constructed at 30 points in the plain. Required BHE depths were determined by performing heat exchange simulations at each location using the calculated loads and heat exchange rates. A suitability map showing distribution of the required BHE depths was prepared. BHE depths were shorter in the north-western area compared to the other parts, implying that the coastal lowlands in this area are more suitable for closed-loop system in the standard detached residences in terms of heat exchange performance as well as the cost reduction. Thickly distributed Quaternary System with higher thermal conductivity is contributing to shorter BHE depths. The suitability map is effective to adopt potential areas for the system installation in the standard detached Japanese residences.

scholarly journals A Study on the Effect of Performance Factor on GSHP System through Real-Scale Experiments in Korea

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 554
Author(s):  
Hongkyo Kim ◽  
Yujin Nam ◽  
Sangmu Bae ◽  
Jae Sang Choi ◽  
Sang Bum Kim
Keyword(s):  
Heat Pump ◽  
System Performance ◽  
Storage Tank ◽  
Heat Storage ◽  
Design Method ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
High Efficient

A ground source heat pump system is one of the high-efficient technologies for space heating and cooling since it uses stable underground temperature. However, in actual application, many situations cannot be achieved due to the unsuitable design of operation. In particular, the design characteristics of buildings with different building load patterns are not reflected by the conventional design method. Moreover, the design capacity of the heat pump can be reduced by designing less capacity than the peak load through the introduction of the heat storage tank, but there is no related quantitative design method. Therefore, in this study, the effect of the ground source heat pump system design factors such as shape, length of the ground heat exchanger, and the capacity of the heat storage tank on the system performance was analyzed. To quantify the effect of such factors on system performance, an experimental plant was constructed and case studies were conducted for each design factor.

Energy analysis of a solar-ground source heat pump system with vertical closed-loop for heating applications

Energy ◽  
2011 ◽  
Vol 36 (5) ◽  
pp. 3224-3232 ◽  
Author(s):  
Kadir Bakirci ◽  
Omer Ozyurt ◽  
Kemal Comakli ◽  
Omer Comakli
Keyword(s):  
Heat Pump ◽  
Closed Loop ◽  
Energy Analysis ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

Design of Ground Source Heat Pump Air Conditioning System for the Office and the Restaurant

2013 ◽  
Vol 732-733 ◽  
pp. 585-588
Author(s):  
Ke Wang Huang
Keyword(s):  
Economic Analysis ◽  
Heat Pump ◽  
Air Conditioning ◽  
Office Building ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Ground Source

By comparing the three kinds of design of air conditioning system, and economic analysis, ground source heat pump system is selected to design the multi-storey office building and multilayer restaurant selection.

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