RT Journal Article
T1 Performance analysis of a combined cold and power (CCP) system with exergy recovery from LNG-regasification
A1 Atienza Márquez, Antonio
A1 Bruno, Joan Carles
A1 Akisawa, Atsushi
A1 Coronas, Alberto
K1 Gas natural licuado
AB Liquefied Natural Gas (LNG) is becoming vital in relation to energy transition and fighting climate change. Because of its cryogenic temperature (111 K), LNG is an exergy “mine” that can be exploited in the regasification process for multiple industrial applications. But this exergy is usually wasted.This research presents a Combined Cold and Power (CCP) system with exergy recovery from LNG-regasification. This exergy is exploited for the combined production of electricity and low-temperature refrigeration distributed through a CO2 District Cooling Network. These systems entail many benefits, but also pending challenges. The CCP system is modelled using real operation data, and its performance is analyzed and benchmarked against that of a cryogenic power plant, both at design and off-design operating conditions.The proposed CCP system reports an equivalent electricity saving of 139 kWh/t-LNG with an exergetic efficiency of 40%, turning into useful energy up to 64% of the maximum cold recoverable in the regasification process. The performance enhances as the heat source temperature rises. Higher LNG flow rates contribute to increase the electricity and refrigeration production, but irreversibilities also increase. Finally, findings show that a low LNG regasification pressure is preferable in spite of the negative effect on the power generation.
PB Elsevier
YR 2019
FD 2019
LK https://hdl.handle.net/10630/32929
UL https://hdl.handle.net/10630/32929
LA eng
NO Antonio Atienza-Márquez, Joan Carles Bruno, Atsushi Akisawa, Alberto Coronas, Performance analysis of a combined cold and power (CCP) system with exergy recovery from LNG-regasification, Energy, Volume 183, 2019, Pages 448-461, ISSN 0360-5442, https://doi.org/10.1016/j.energy.2019.06.153.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 30 ene 2026