Design and Control of a Heat Pump-Assisted Azeotropic Dividing Wall Column for EDA/Water Separation

2017 ◽  
Vol 56 (34) ◽  
pp. 9770-9777 ◽  
Author(s):  
Mengqi Chen ◽  
Na Yu ◽  
Lin Cong ◽  
Jianxin Wang ◽  
Minyan Zhu ◽  
...  
Keyword(s):  
Heat Pump ◽  
Water Separation ◽  
Dividing Wall Column ◽  
And Control

Clogging Problems in Groundwater Heat Pump Systems in Sweden

1988 ◽  
Vol 20 (3) ◽  
pp. 133-140 ◽  
Author(s):  
Annika Lindblad-Påsse
Keyword(s):  
Redox Potential ◽  
Heat Pump ◽  
Hydrogen Sulphide ◽  
Sludge Formation ◽  
Iron Bacteria ◽  
Iron Precipitation ◽  
Water Composition ◽  
Groundwater Heat Pump ◽  
And Control ◽  
System Knowledge

A number of groundwater heat pump systems have been investigated to determine the extent of problems caused by the chemistry of the groundwater used. The main purpose was to investigate sites using iron rich groundwater. Fifteen facilities were studied regularly for three years. Ten of these facilities had some kind of problem caused by iron precipitation. Four of the sites were rebuilt because of severe plugging due to iron sludge in wells, pumps and pipes. In all facilities with severe problems, iron bacteria were found. Low redox potential, indicated by hydrogen sulphide in the groundwater, seems to protect from iron bacteria. In some of the systems using groundwater with H2S the problems were corrosion and sludge formation caused by sulphur oxidizing bacteria. Rapid clogging was caused by aeration of the groundwater due to improper design of the system. Knowledge of the water composition, design of the systems to minimize aeration, and control of clogging turned out to be important factors to maintain operation safety.

Structure and control co-optimization for an ejector expansion heat pump coupled with thermal storages

2021 ◽  
Vol 235 ◽  
pp. 110755
Author(s):  
Fang Liu ◽  
Jiaxin Deng ◽  
Qiu Mo ◽  
Yanping Xu ◽  
Dan Liu ◽  
...  
Keyword(s):  
Heat Pump ◽  
And Control

Intensifying Kaibel dividing-wall column via vapor recompression heat pump

2019 ◽  
Vol 142 ◽  
pp. 195-203 ◽  
Author(s):  
Xing Qian ◽  
Kejin Huang ◽  
Haisheng Chen ◽  
Yang Yuan ◽  
Liang Zhang ◽  
...  
Keyword(s):  
Heat Pump ◽  
Dividing Wall Column ◽  
Vapor Recompression

Recent advances and development in optimal design and control of ground source heat pump systems

2020 ◽  
Vol 131 ◽  
pp. 110001 ◽  
Author(s):  
Zhenjun Ma ◽  
Lei Xia ◽  
Xuemei Gong ◽  
Georgios Kokogiannakis ◽  
Shugang Wang ◽  
...  
Keyword(s):  
Optimal Design ◽  
Heat Pump ◽  
Ground Source Heat Pump ◽  
Recent Advances ◽  
Ground Source ◽  
And Control ◽  
Optimal Design And Control

scholarly journals Monitoring and control of a pilot plant made of solar assisted heat pump with hybrid panels

2019 ◽  
Author(s):  
L. A. Tagliafico ◽  
V. Bianco ◽  
A. Cavalletti ◽  
C. Marafioti ◽  
A. Marchitto ◽  
...  
Keyword(s):  
Heat Pump ◽  
Pilot Plant ◽  
Monitoring And Control ◽  
And Control
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