Study on Operating Characteristics of Soil Source Heat Pump System of a Residential District in Summer

2010 ◽  
Vol 171-172 ◽  
pp. 219-222
Author(s):  
Xu Quan Li ◽  
Min Jie Gu ◽  
Xi Liang Niu ◽  
Song Tao Hu
Keyword(s):  
Heat Pump ◽  
Control Strategies ◽  
Air Conditioner ◽  
Operating Characteristics ◽  
Public Buildings ◽  
Pump System ◽  
Heat Pump System ◽  
Residential District ◽  
Load Characteristics ◽  
And Control

Load characteristics of the residential district is different from public buildings, so residential district of soil source heat pump air conditioner system operating characteristics are different from public buildings. Studies have been made on operating characteristics of soil source heat pump air conditioner system in a residential district in Qingdao, analyzing energy consumption of soil source heat pump air conditioner system and exploring its operation laws. It provides the basis for design, operation and control strategies of soil source heat pump system.

Analysis of Heat-Pump System Based on the Control of Refrigerant Mass Flux

2011 ◽  
Vol 90-93 ◽  
pp. 3073-3076 ◽  
Author(s):  
Shun Yu Su ◽  
Tian Tian ◽  
Jian Chen
Keyword(s):  
Heat Pump ◽  
Mass Flux ◽  
Control Strategies ◽  
Operating Conditions ◽  
Air Conditioner ◽  
Pump System ◽  
Operating Condition ◽  
Heat Pump System ◽  
The Difference ◽  
Refrigerant Charge Quantity

Calculation of refrigerant quantities in the heat-exchangers of an air-conditioner on refrigeration and heating operating conditions shows that refrigerant charge quantity in heating operating condition is less than that in refrigeration operating condition. The refrigerant control strategies are most important for refrigeration and heat-pump system. Based on the difference of charged refrigerant quantities of the air-conditioning system between refrigeration and heating operating conditions, the exhaust bypass method was presented in order to improve its operation efficiency. This heat-pump system for controlling refrigerant mass flux was analyzed in detail. The results show that the exhaust bypass method has its advantages in controlling refrigerant mass flux for heat-pump system.

scholarly journals Study on Operating and Control Strategies for Hybrid Ground Source Heat Pump System

2015 ◽  
Vol 121 ◽  
pp. 1894-1901 ◽  
Author(s):  
Qing Zhang ◽  
Nan Lv ◽  
Shengpeng Chen ◽  
Hao Shi ◽  
Zhenqian Chen
Keyword(s):  
Heat Pump ◽  
Control Strategies ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
And Control

scholarly journals Modeling study of ground source heat pump system based on the dynamic load of underground engineering

2020 ◽  
Vol 182 ◽  
pp. 03004
Author(s):  
Jintian Li ◽  
Yunzhe Ji ◽  
Bo Wang ◽  
Ling Xie
Keyword(s):  
Soil Temperature ◽  
Heat Pump ◽  
Dynamic Load ◽  
Operating Conditions ◽  
Ground Source Heat Pump ◽  
Operating Characteristics ◽  
Underground Engineering ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

The load properties of underground engineering have an important influence on operating characteristics of ground source heat pump system. It has important reference value for design and operation management that Simulation analyzing operating conditions of ground source heat pump system under dynamic load conditions. It took an underground engineering as an example for dynamic load calculation in the paper, and simulated operating characteristics of ground source heat pump system under three operating conditions. The calculation results show that the engineering maintenance and management period is conducive to the recovery of soil temperature, and it improves the COP value of the unit. Some measures should be taken to restore soil temperature for long-term continuous operation of underground engineering. The use of heat recovery to make domestic hot water can relieve the problem of soil thermal imbalance to some extent. It is beneficial to improve heat pump unit performance.

scholarly journals Comparative life cycle assessment: ground source heat pump system versus gas furnace and air conditioner system

2021 ◽  
Author(s):  
Alisha Kathleen Hunter
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Air Conditioner ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Comparative Life Cycle Assessment

Ground source heat pump (GSHP) systems are an extremely efficient space heating and cooling technology. There is a large consensus throughout the literature that GSHP systems can reduce operational CO2 emissions by up to 80% in comparison to natural gas furnace (GF) and air conditioner (AC) systems. The literature is limited; however, in regards to the specific environmental impacts associated with the systems, as well as the impacts that occur throughout the systems’ entire life cycle. In this project, a comparative life cycle assessment was conducted to compare a GSHP system with a GF/AC system, examining 14 specific environmental impact categories. Results were consistent with the literature in regards to the operational stage; however the GSHP system displayed a significantly greater overall environmental impact. While these results are specific to the region of Ontario, Canada, they call into question the prevailing opinion that GSHPs are the more environmentally sustainable option.

scholarly journals Study on Temperature Field of Buried Heat Exchanger in a Residential District

2019 ◽  
Vol 136 ◽  
pp. 01045
Author(s):  
WANG Kai ◽  
MIN Jie ◽  
SHENG Xuelei ◽  
WANG Haitao
Keyword(s):  
Temperature Field ◽  
Soil Temperature ◽  
Heat Pump ◽  
Residential Buildings ◽  
Engineering Application ◽  
Stable Operation ◽  
Buried Pipe ◽  
Pump System ◽  
Heat Pump System ◽  
Residential District

The long-term stable operation of soil source heat pump system depends on the recovery characteristics of soil temperature field. Using DEST-h model of Hefei a high-rise residential buildings and FLUENT software to simulate software of soil source heat pump are analyzed through the summer and autumn season recovery after the change of soil temperature field around the buried pipe. It is pointed out that the intermittent operation of the compensation tower soil-coupled heat pump is beneficial to promote the recovery of soil temperature field. It has certain engineering application value for the improvement of soil source heat pump performance in hot summer and cold winter area.

scholarly journals Comparative life cycle assessment: ground source heat pump system versus gas furnace and air conditioner system

2021 ◽  
Author(s):  
Alisha Kathleen Hunter
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Air Conditioner ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Comparative Life Cycle Assessment

Ground source heat pump (GSHP) systems are an extremely efficient space heating and cooling technology. There is a large consensus throughout the literature that GSHP systems can reduce operational CO2 emissions by up to 80% in comparison to natural gas furnace (GF) and air conditioner (AC) systems. The literature is limited; however, in regards to the specific environmental impacts associated with the systems, as well as the impacts that occur throughout the systems’ entire life cycle. In this project, a comparative life cycle assessment was conducted to compare a GSHP system with a GF/AC system, examining 14 specific environmental impact categories. Results were consistent with the literature in regards to the operational stage; however the GSHP system displayed a significantly greater overall environmental impact. While these results are specific to the region of Ontario, Canada, they call into question the prevailing opinion that GSHPs are the more environmentally sustainable option.

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