scholarly journals DYNAMIC MODELING OF MICROCLIMATE AND ENVIRONMENTAL CONTROL STRATEGIES IN A GREENHOUSE COUPLED WITH A HEAT PUMP SYSTEM

2006 ◽  
pp. 331-340 ◽  
Author(s):  
I. Yildiz ◽  
D.P. Stombaugh
Keyword(s):  
Heat Pump ◽  
Dynamic Modeling ◽  
Environmental Control ◽  
Control Strategies ◽  
Pump System ◽  
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.

Dynamic modeling of Gas Engine driven Heat Pump system in cooling mode

Energy ◽  
2013 ◽  
Vol 55 ◽  
pp. 195-208 ◽  
Author(s):  
Sepehr Sanaye ◽  
Mahmood Chahartaghi ◽  
Hesam Asgari
Keyword(s):  
Heat Pump ◽  
Dynamic Modeling ◽  
Cooling Mode ◽  
Pump System ◽  
Heat Pump System ◽  
Gas Engine

scholarly journals Dynamic Modeling and Validation of a Carbon Dioxide Heat Pump System

Evergreen ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 172-194 ◽  
Author(s):  
Jaedeok Ko ◽  
Nobuo Takata ◽  
Kyaw Thu ◽  
Takahiko Miyazak
Keyword(s):  
Carbon Dioxide ◽  
Heat Pump ◽  
Dynamic Modeling ◽  
Pump System ◽  
Heat Pump System

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.

A study on the optimized control strategies of geothermal heat pump system and absorption chiller-heater

2013 ◽  
Vol 38 (8) ◽  
pp. 1083-1098 ◽  
Author(s):  
Si-Wan Yu ◽  
Young-Ju Jung ◽  
Seok-Hyun Kim ◽  
Jae-Hun Jo ◽  
Yong-Shik Kim ◽  
...  
Keyword(s):  
Heat Pump ◽  
Control Strategies ◽  
Absorption Chiller ◽  
Geothermal Heat ◽  
Pump System ◽  
Heat Pump System ◽  
Geothermal Heat Pump
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