scholarly journals Comprehensive Benefit Analysis of Direct Expansion Ground Source Heat Pump System

2013 ◽  
Vol 05 (02) ◽  
pp. 76-81 ◽  
Author(s):  
Yuefen Gao ◽  
Yingxin Peng ◽  
Juanjuan Liu
Keyword(s):  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Benefit Analysis ◽  
Direct Expansion ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Comprehensive Benefit

10807 Demonstration experiment of ground source heat pump system using direct expansion method : Result of heating experiment

2014 ◽  
Vol 2014.20 (0) ◽  
pp. _10807-1_-_10807-2_
Author(s):  
Daiki Yokoyama ◽  
Tetsuaki Takeda ◽  
Shumpei Funatani ◽  
Koichi Ichimiya ◽  
Syuhei Ishiguro
Keyword(s):  
Heat Pump ◽  
Expansion Method ◽  
Ground Source Heat Pump ◽  
Direct Expansion ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Demonstration Experiment

F141 Demonstration experiment of ground source heat pump system using direct expansion method

2013 ◽  
Vol 2013 (0) ◽  
pp. 189-190
Author(s):  
Tetsuaki Takeda ◽  
Daiki Yokoyama ◽  
Syuhei Ishiguro ◽  
Koichi Ichimiya ◽  
Shumpei Funatani
Keyword(s):  
Heat Pump ◽  
Expansion Method ◽  
Ground Source Heat Pump ◽  
Direct Expansion ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Demonstration Experiment

Thermal Contribution Rates of Double-Heat Sources of the Direct-Expansion Solar-Ground Source Heat Pump System in Hot Summer and Warm Winter Area

2013 ◽  
Vol 726-731 ◽  
pp. 3613-3621
Author(s):  
Ying Ning Hu ◽  
Jia Wei Zang ◽  
Jun Lin ◽  
Shan Shan Hu
Keyword(s):  
Heat Pump ◽  
Heat Sources ◽  
Ground Source Heat Pump ◽  
Direct Expansion ◽  
Contribution Rate ◽  
Pump System ◽  
Heat Pump System ◽  
Warm Winter ◽  
Transition Season ◽  
Ground Source

According to the energy-consuming characteristics of buildings in hot summer and warm winter area, a direct-expansion solar-ground source heat pump system is put forward. This system runs the direct-expansion solar heat pump system in summer and direct-expansion solar-ground source heat pump system in transition season and winter to produce hot water. The article analyses the thermal contribution rates of double-heat sources of the system under various working conditions in different seasons. Results indicate that the total area of solar evaporators matches the power of units and the matching value is 2.18m2/kW. When the average daily total solar radiation is 15.8MJ/m2 in summer, 11.2MJ/m2 in transition season and 11.2MJ/m2 in winter, the unit area heat transfer are respectively about 1.48kW/m2, 1.1kW/ m2 and 0.43kW/m2. The annual solar thermal contribution rate is 46.4% and the annual soil thermal contribution rate is 32%, which can reduce 57.96% quantity of heat absorbing from the soil.

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