Modelling of a novel power-generating cycle for the utilization of the cold exergy of liquid natural gas with the adjustable parameters of working fluid
作者： Łukasz Tomków , Maciej Cholewiński
DOI: 10.1016/J.ENCONMAN.2019.112178
关键词:
摘要: Abstract Utilization of the cold exergy regasified liquid natural gas (LNG) improves overall efficiency product chain by regaining part energy used to liquefy (NG). The application a standard organic Rankine cycle in case high-pressure LNG (complying with requirements delivery networks after regasification) leads comparatively low power generation and large loss exergy. In this paper we proposed novel multi-stage power-generating using binary working fluid. By separation ethane-krypton mixture into several streams different component ratios mass flows it was possible adjust process parameters increase net that can be produced per unit destroyed Furthermore, proper selection allowed heat capacity increased at any temperature region exchanger, thus efficiency. Factors affecting thermodynamic behavior system were presented analyzed numerical simulations. A significant total exergetic (from 10% 19.3%) observed when compared previously reported results for similar operating conditions. more than 15.4 kWh/t NG network pressure (8.5 MPa) obtained.
sci-hub.se 参考文章(69)
Łukasz Tomków, Maciej Cholewiński, Improvement of the LNG (liquid natural gas) regasification efficiency by utilizing the cold exergy with a coupled absorption – ORC (organic Rankine cycle) Energy. ,vol. 87, pp. 645- 653 ,(2015) , 10.1016/J.ENERGY.2015.05.041
N. Arcuri, R. Bruno, P. Bevilacqua, LNG as cold heat source in OTEC systems Ocean Engineering. ,vol. 104, pp. 349- 358 ,(2015) , 10.1016/J.OCEANENG.2015.05.030
A. Gupta, Y. Anand, S. Anand, S. K. Tyagi, Thermodynamic optimization and chemical exergy quantification for absorption-based refrigeration system Journal of Thermal Analysis and Calorimetry. ,vol. 122, pp. 893- 905 ,(2015) , 10.1007/S10973-015-4795-6
Ramón Ferreiro García, Jose Carbia Carril, Javier Romero Gomez, Manuel Romero Gomez, Power plant based on three series Rankine cycles combined with a direct expander using LNG cold as heat sink Energy Conversion and Management. ,vol. 101, pp. 285- 294 ,(2015) , 10.1016/J.ENCONMAN.2015.05.051
Ramón Ferreiro García, Jose Carbia Carril, Javier Romero Gomez, Manuel Romero Gomez, Combined cascaded Rankine and direct expander based power units using LNG (liquefied natural gas) cold as heat sink in LNG regasification Energy. ,vol. 105, pp. 16- 24 ,(2016) , 10.1016/J.ENERGY.2015.09.051
E. A. Roszak, M. Chorowski, Exergy of LNG regasification – possible utilization method. Case study of LNG - ANG coupling ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference - CEC. ,vol. 1573, pp. 1379- 1386 ,(2014) , 10.1063/1.4860867
Celidonio Dispenza, Giorgio Dispenza, Vincenzo La Rocca, Giuseppe Panno, Exergy recovery during LNG regasification: Electric energy production - Part one Applied Thermal Engineering. ,vol. 29, pp. 380- 387 ,(2009) , 10.1016/J.APPLTHERMALENG.2008.03.036
Jan Szargut, Ireneusz Szczygiel, Utilization of the cryogenic exergy of liquid natural gas (LNG) for the production of electricity Energy. ,vol. 34, pp. 827- 837 ,(2009) , 10.1016/J.ENERGY.2009.02.015
Yuhui Song, Jiangfeng Wang, Yiping Dai, Enmin Zhou, Thermodynamic analysis of a transcritical CO2 power cycle driven by solar energy with liquified natural gas as its heat sink Applied Energy. ,vol. 92, pp. 194- 203 ,(2012) , 10.1016/J.APENERGY.2011.10.021
Zhong Xu, Stanley I. Sandler, Application to mixtures of the Peng-Robinson equation of state with fluid-specific parameters Industrial & Engineering Chemistry Research. ,vol. 26, pp. 1234- 1238 ,(1987) , 10.1021/IE00066A030