Simulations for the Performance Evaluation of Ground Source Heat Pump Cooling System Combined with Hot Water Heat Pump

2020 ◽  
Vol 24 (2) ◽  
pp. 64-72
Author(s):  
Xinwen Zhang ◽  
Kyu-Nam Rhee ◽  
Gun-Joo Jung
Keyword(s):  
Performance Evaluation ◽  
Heat Pump ◽  
Cooling System ◽  
Hot Water ◽  
Ground Source Heat Pump ◽  
Ground Source

Performance Evaluation of a Vertical U-Tube Ground Heat Exchanger Using a Numerical Simulation Approach

2013 ◽  
Vol 724-725 ◽  
pp. 909-915
Author(s):  
Ping Fang Hu ◽  
Zhong Yi Yu ◽  
Fei Lei ◽  
Na Zhu ◽  
Qi Ming Sun ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Performance Evaluation ◽  
Heat Exchanger ◽  
Heat Pump ◽  
Heat Transfer Process ◽  
Working Fluid ◽  
Outlet Temperature ◽  
Ground Heat Exchanger ◽  
Ground Source Heat Pump ◽  
Ground Source

A vertical U-tube ground heat exchanger can be utilized to exchange heat with the soil in ground source heat pump systems. The outlet temperature of the working fluid through the U-tube not only accounts for heat transfer capacity of a ground heat exchanger, but also greatly affects the operational efficiency of heat pump units, which is an important characteristic parameter of heat transfer process. It is quantified by defining a thermal effectiveness coefficient. The performance evaluation is performed with a three dimensional numerical model using a finite volume technique. A dynamic simulation was conducted to analyze the thermal effectiveness as a function of soil thermal properties, backfill material properties, separation distance between the two tube legs, borehole depth and flow velocity of the working fluid. The influence of important characteristic parameters on the heat transfer performance of vertical U-tube ground heat exchangers is investigated, which may provide the references for the design of ground source heat pump systems in practice.

H233 Heat Exchanging Performance of Ground Source Heat Pump Using Direct Expansion Method : Performance evaluation on indoor unit side

2015 ◽  
Vol 2015 (0) ◽  
pp. _H233-1_-_H233-22
Author(s):  
Daisuke Tanaka ◽  
Takanori Aoyama ◽  
Tetsuaki Takeda ◽  
Shumpei Funatani ◽  
Koichi Ichimiya ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Heat Pump ◽  
Expansion Method ◽  
Ground Source Heat Pump ◽  
Direct Expansion ◽  
Method Performance ◽  
Ground Source

scholarly journals Performance Evaluation of Ground Source Heat Pump Using Direct Expansion Method

2016 ◽  
Vol 2016 (0) ◽  
pp. G0800202
Author(s):  
Masatoshi TSUCHIYA ◽  
Shuhei ISHIGURO ◽  
Shumpei FUNATANI ◽  
Koichi ICHIMIYA ◽  
Tetsuaki TAKEDA
Keyword(s):  
Performance Evaluation ◽  
Heat Pump ◽  
Expansion Method ◽  
Ground Source Heat Pump ◽  
Direct Expansion ◽  
Ground Source
Sign in / Sign up

Export Citation Format

Share Document