TY - GEN
T1 - Experimental investigation on thermal energy transportation by CO2 hydrate
AU - Park, Joonho
AU - Park, Jungjoon
AU - Choi, Sung
AU - Kang, Yong Tae
N1 - Funding Information:
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning and the Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea (No. 20172010105000).
Publisher Copyright:
© 2020 International Institute of Refrigeration. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Optimum conditions for an efficient long-distance thermal energy transportation system using CO2 hydrate slurry are evaluated in a lab-scale environment. The properties of CO2 hydrate grant its purpose as a secondary refrigerant considering the high dissociation enthalpy. High pressure and low temperature conditions are required for stable hydrate formation and therefore, tetrahydrofuran (THF) is selected to ease the formation conditions for pure CO2 hydrate. The experiments are conducted based on various THF concentrations, formation pressure, and temperature conditions. Two heat exchangers are installed for the formation and dissociation of CO2+THF hydrate slurry. Heat transfer rates for both heat exchangers and coefficient of performance are evaluated. Pressure drop is obtained during the transportation process from the formation heat exchanger to the dissociation heat exchanger. Consequently, a hydrate based optimized system is assessed for long-distance heat transportation applications.
AB - Optimum conditions for an efficient long-distance thermal energy transportation system using CO2 hydrate slurry are evaluated in a lab-scale environment. The properties of CO2 hydrate grant its purpose as a secondary refrigerant considering the high dissociation enthalpy. High pressure and low temperature conditions are required for stable hydrate formation and therefore, tetrahydrofuran (THF) is selected to ease the formation conditions for pure CO2 hydrate. The experiments are conducted based on various THF concentrations, formation pressure, and temperature conditions. Two heat exchangers are installed for the formation and dissociation of CO2+THF hydrate slurry. Heat transfer rates for both heat exchangers and coefficient of performance are evaluated. Pressure drop is obtained during the transportation process from the formation heat exchanger to the dissociation heat exchanger. Consequently, a hydrate based optimized system is assessed for long-distance heat transportation applications.
KW - CO2 hydrate formation
KW - CO2 transportation
KW - Cold thermal energy
KW - Secondary refrigerant
KW - Tetrahydrofuran (THF)
UR - http://www.scopus.com/inward/record.url?scp=85098216276&partnerID=8YFLogxK
U2 - 10.18462/iir.gl.2020.1076
DO - 10.18462/iir.gl.2020.1076
M3 - Conference contribution
AN - SCOPUS:85098216276
T3 - Refrigeration Science and Technology
SP - 435
EP - 440
BT - 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Proceedings
PB - International Institute of Refrigeration
T2 - 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020
Y2 - 7 December 2020 through 9 December 2020
ER -