THERMODYNAMIC ANALYSIS OF A NEW THE COMBINED POWER SYSTEM USING LNG'S COLD ENERGY

Yıl 2020, Cilt: 8 Sayı: 1, 122 - 134, 05.03.2020

Dilek Nur ÖZEN

https://doi.org/10.36306/konjes.698721

Öz

In this study, a new combined power system was proposed for the Marmara Ereglisi receiver terminal and the power generation during the evaporation of liquefied natural gas (LNG) was investigated. The combined power system consists of an open Brayton cycle (BC), a closed Rankine cycle (HRC) operating at high temperatures, and a closed Rankine cycle (LRC) operating at low temperatures. In the combined power system, an optimum value for the LRC condenser inlet pressure was found to be 150.7 kPa. The total power consumed, including LNG pumps in the system was found to be 193.413 MW and 291.321MW net power produced from the system.

Anahtar Kelimeler

LNG, Cold Energy, Brayton Cycle, ORC, Combined Power Cycles

LNG’nin Soğuk Enerjisini Kullanan Yeni Bir Birleşik Güç Sistemin Termodinamik Analizi

Öz

Bu çalışmada Marmara Ereğlisi alım terminali için yeni bir birleşik güç sistemi önerilmiştir ve sıvılaştırılmış doğalgazın (LNG) buharlaşması esnasındaki güç oluşumu araştırılmıştır. Birleşik güç sistemi bir açık Brayton çevrimi (BC), yüksek sıcaklıklarda çalışan bir kapalı Rankine çevrimi (HRC) ve düşük sıcaklıklarda çalışan bir kapalı Rankine çevriminden (LRC) oluşmaktadır. Bileşik güç sisteminde LRC kondenser giriş basıncı için optimum değer 150.7 kPa olarak bulunmuştur. Sistemdeki LNG pompaları da dahil harcanan toplam güç 193.413 MW ve sistemden üretilen net güç 291.321 MW olarak bulunmuştur.

Anahtar Kelimeler

LNG, Cold Energy, Brayton Cycle, ORC, Combined Power Cycles

Kaynakça

• Akbari, N., 2018, Introducing and 3E (energy, exergy, economic) analysis of an integrated transcritical CO2 Rankine cycle, Stirling power cycle and LNG regasification process. Applied Thermal Engineering, 140, 442-454.
• Bao, J., Lin, Y., Zhang, R., Zhang, N., & He, G., 2017, Effects of stage number of condensing process on the power generation systems for LNG cold energy recovery, Applied Thermal Engineering, 126, 566-582.
• Badami, M., Bruno, J. C., Coronas, A., & Fambri, G., 2018, Analysis of different combined cycles and working fluids for LNG exergy recovery during regasification. Energy, 159, 373-384.
• Behar, O., Khellaf, A., Mohammedi, K., & Ait–Kaci, S. Enhancing the performance of solar hybrid gas turbine using LNG cold energy.
• Cao, Y., Rattner, A. S., & Dai, Y., 2018, Thermo economic analysis of a gas turbine and cascaded CO2 combined cycle using thermal oil as an intermediate heat-transfer fluid. Energy, 162, 1253-1268.
• Choi I-H, et al., 2013, Analysis and optimization of cascade Rankine cycle for liquefied natural gas cold energy recovery. Energy, 61:179–95.
• Ersoy, H. K., & Demirpolat, S. O., 2009, Using liquefied natural gas cold energy for power generation: case study for Marmara Ereglisi receiving terminal, Journal of the Energy Institute, 82(1), 11-18.
• Ghaebi, H., Parikhani, T., & Rostamzadeh, H., 2017, Energy, exergy and thermo economic analysis of a novel combined cooling and power system using low-temperature heat source and LNG cold energy recovery, Energy Conversion and Management, 150, 678-692.
• Gómez, M. R., Garcia, R. F., Carril, J. C., & Gómez, J. R., 2014, High efficiency power plant with liquefied natural gas cold energy utilization. Journal of the Energy Institute, 87(1), 59-68.
• Hou, S., Zhou, Y., Yu, L., Zhang, F., & Cao, S., 2018, Optimization of the combined supercritical CO2 cycle and organic Rankine cycle using zeotropic mixtures for gas turbine waste heat recovery. Energy conversion and management, 160, 313-325.
• Kanbur, B. B., Xiang, L., Dubey, S., Choo, F. H., & Duan, F., 2017, Thermo economic and environmental assessments of a combined cycle for the small scale LNG cold utilization, Applied Energy, 204, 1148-1162.
• Khaljani, M., Saray, R. K., & Bahlouli, K., 2015, Comprehensive analysis of energy, exergy and exergo-economic of cogeneration of heat and power in a combined gas turbine and organic Rankine cycle. Energy Conversion and Management, 97, 154-165.
• Kim KH, Kim KC., 2014, Thermodynamic performance analysis of a combined power cycle using low grade heat source and LNG cold energy. Appl Therm Eng, 70:50–60.
• Lee S., 2017, Multi-parameter optimization of cold energy recovery in cascade Rankine cycle for LNG regasification using genetic algorithm. Energy, 118:776–82.
• Li P, et al., 2016, A cascade organic Rankine cycle power generation system using hybrid solar energy and liquefied natural gas. Sol Energy, 127:136–46.
• Lu T, Wang K., 2009, Analysis and optimization of a cascading power cycle with liquefied natural gas (LNG) cold energy recovery. Appl Therm Eng, 29(8):1478–84. Mosaffa A, Mokarram NH, Farshi LG., 2017, Thermo-economic analysis of combined different ORCs geothermal power plants and LNG cold energy. Geothermics, 65:113–25.
• Nami, H., Mahmoudi, S. M. S., & Nemati, A., 2017, Exergy, economic and environmental impact assessment and optimization of a novel cogeneration system including a gas turbine, a supercritical CO2 and an organic Rankine cycle (GT-HRSG/SCO2). Applied Thermal Engineering; 110, 1315-1330.
• Shi, X., & Che, D., 2009, A combined power cycle utilizing low-temperature waste heat and LNG cold energy. Energy conversion and management, 50(3), 567-575.
• Song Y, et al., 2012, Thermodynamic analysis of a transcritical CO 2 power cycle driven by solar energy with liquified natural gas as its heat sink. Appl Energy, 92:194–203.
• Tan, H., Sun, N., Lin, C., & Li, Y., 2016, Experimental study on a self-refrigerated auto air conditioning system based on LNG-fuelled trucks, In Industrial Electronics and Applications (ICIEA), 2016 IEEE 11th Conference on (pp. 1586-1591). IEEE.
• Wang H, Shi X, Che D., 2013, Thermodynamic optimization of the operating parameters for a combined power cycle utilizing low-temperature waste heat and LNG cold energy. Appl Therm Eng, 59:490–7.
• Yuanwei, L., Hongchang, Y., & Chongfang, M., 2011, Analysis and optimization of the power cycle based on the cold energy of liquefied natural gas. In Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on (Vol. 1, pp. 455-458). IEEE.
• Zhang G, Xu W, Yang Y, Zhang D., 2014, Utilization of LNG cryogenic energy in a proposed method for inlet air cooling to improve the performance of a combined cycle. Energy Proc, 61:2109–13.
• Zhang G, Zheng J, Yang Y, Liu W., 2016, A novel LNG cryogenic energy utilization method for inlet air cooling to improve the performance of combined cycle. Appl Energy,179:638–49.
• Zhao P, Wang JF, Dai Y, Gao L., 2015, Thermodynamic analysis of a hybrid energy system based on CAES system and CO2 transcritical power cycle with LNG cold energy utilization. Appl Therm Eng, 91:718–30.