scholarly journals THE INFLUENCE OF AQUIFER PARAMETERS ON THE DESIGN OF EXPLOATATION AND DRAINAGE WELLS FOR THE HEAT PUMP SYSTEMS

2020 ◽  
Author(s):  
Filip Dodigovic ◽  
Stjepan Strelec ◽  
Kristijan Grabar ◽  
Barica Kovacev-Marincic
Keyword(s):  
Heat Pump ◽  
Aquifer Parameters ◽  
Drainage Wells

Influence of Sand Concentration on Variation Characteristics of Aquifer Parameters under Groundwater Source Heat Pump Long-Term Operation

2013 ◽  
Vol 689 ◽  
pp. 551-555
Author(s):  
Song Qing Wang ◽  
Shi Jing He
Keyword(s):  
Heat Pump ◽  
Simulation Method ◽  
Confined Water ◽  
Seepage Velocity ◽  
Term Operation ◽  
Aquifer Parameters ◽  
Water Head ◽  
Variation Characteristics ◽  
Groundwater Source

The influence of sand concentration on variation characteristics of aquifer parameters, under groundwater source heat pump long-term operation, is theoretically analyzed through numerical simulation method. The present studies show that the sand concentration obviously affects the variations of the porosity and hydraulic conductivity, however, the variation of confined water head is affected inconspicuously. The variations of aquifer parameters are also related with the seepage velocity.

Current Distortion Analysis of Three-Phase PWM Rectifier in Over-Modulation Region and Application to Air-Cooled Heat Pump Chiller

2020 ◽  
Vol 140 (9) ◽  
pp. 633-641
Author(s):  
Yohei Kubota ◽  
Keiichi Ishida ◽  
Masaki Kanamori ◽  
Yuki Yanase ◽  
Takahisa Endo ◽  
...  
Keyword(s):  
Heat Pump ◽  
Pwm Rectifier ◽  
Three Phase ◽  
Distortion Analysis ◽  
Modulation Region
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