scholarly journals Energy recovery from natural gas pressure reduction stations: Integration with low temperature heat sources

2018 ◽  
Vol 159 ◽  
pp. 274-283 ◽  
Author(s):  
Davide Borelli ◽  
Francesco Devia ◽  
Ermanno Lo Cascio ◽  
Corrado Schenone
Keyword(s):  
Low Temperature ◽  
Natural Gas ◽  
Energy Recovery ◽  
Gas Pressure ◽  
Heat Sources ◽  
Pressure Reduction ◽  
Temperature Heat

Key performance indicators for integrated natural gas pressure reduction stations with energy recovery

2018 ◽  
Vol 164 ◽  
pp. 219-229 ◽  
Author(s):  
Ermanno Lo Cascio ◽  
Davide Borelli ◽  
Francesco Devia ◽  
Corrado Schenone
Keyword(s):  
Natural Gas ◽  
Performance Indicators ◽  
Energy Recovery ◽  
Key Performance Indicators ◽  
Gas Pressure ◽  
Pressure Reduction

Optimal retrofitting of natural gas pressure reduction stations for energy recovery

Energy ◽  
2018 ◽  
Vol 153 ◽  
pp. 387-399 ◽  
Author(s):  
Ermanno Lo Cascio ◽  
Marc Puig Von Friesen ◽  
Corrado Schenone
Keyword(s):  
Natural Gas ◽  
Energy Recovery ◽  
Gas Pressure ◽  
Pressure Reduction

MODELING OF AN ORGANIC RANKINE CYCLE FOR LOW TEMPERATURE HEAT SOURCES

2018 ◽  
Author(s):  
Arthur Batista Martins Lott ◽  
Arthur Pacheco Luz ◽  
João Arthur Daconti Silva ◽  
Cristiana Maia ◽  
Sergio Hanriot
Keyword(s):  
Low Temperature ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Heat Sources ◽  
Temperature Heat

scholarly journals Analysis and Comparison of Some Low-Temperature Heat Sources for Heat Pumps

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1853 ◽  
Author(s):  
Pavel Neuberger ◽  
Radomír Adamovský
Keyword(s):  
Heat Transfer ◽  
Low Temperature ◽  
Heat Source ◽  
Heat Pump ◽  
Heat Exchangers ◽  
Ambient Air ◽  
Heat Transfer Fluid ◽  
Heat Sources ◽  
Ground Heat Exchangers ◽  
Temperature Heat

The efficiency of a heat pump energy system is significantly influenced by its low-temperature heat source. This paper presents the results of operational monitoring, analysis and comparison of heat transfer fluid temperatures, outputs and extracted energies at the most widely used low temperature heat sources within 218 days of a heating period. The monitoring involved horizontal ground heat exchangers (HGHEs) of linear and Slinky type, vertical ground heat exchangers (VGHEs) with single and double U-tube exchanger as well as the ambient air. The results of the verification indicated that it was not possible to specify clearly the most advantageous low-temperature heat source that meets the requirements of the efficiency of the heat pump operation. The highest average heat transfer fluid temperatures were achieved at linear HGHE (8.13 ± 4.50 °C) and double U-tube VGHE (8.13 ± 3.12 °C). The highest average specific heat output 59.97 ± 41.80 W/m2 and specific energy extracted from the ground mass 2723.40 ± 1785.58 kJ/m2·day were recorded at single U-tube VGHE. The lowest thermal resistance value of 0.07 K·m2/W, specifying the efficiency of the heat transfer process between the ground mass and the heat transfer fluid, was monitored at linear HGHE. The use of ambient air as a low-temperature heat pump source was considered to be the least advantageous in terms of its temperature parameters.

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