THERMO-ECONOMIC ANALYSIS OF ORGANIC RANKINE CYCLE (ORC) WITH CO2 CAPTURE SYSTEM FOR COAL-FIRED POWER PLANT WASTE HEAT RECOVERY

2018 ◽  
Vol 19 (3-4) ◽  
pp. 303-322
Author(s):  
Li Zhang ◽  
Zhen Pan ◽  
Liyan Shang ◽  
Liang Dong
Keyword(s):  
Power Plant ◽  
Economic Analysis ◽  
Co2 Capture ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Plant Waste

A proposed coal-to-methanol process with CO2 capture combined Organic Rankine Cycle (ORC) for waste heat recovery

2016 ◽  
Vol 129 ◽  
pp. 53-64 ◽  
Author(s):  
Xia Liu ◽  
Jianeng Liang ◽  
Dong Xiang ◽  
Siyu Yang ◽  
Yu Qian
Keyword(s):  
Co2 Capture ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle

scholarly journals WORKING FLUID REVIEW ON THE SYSTEM ORGANIC RANKINE CYCLE

2021 ◽  
Vol 6 (1) ◽  
pp. 53-64
Author(s):  
Iwan Gunawan ◽  
Nazaruddin Sinaga
Keyword(s):  
Power Plant ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Working Fluid ◽  
Heat Power ◽  
Combine Cycle ◽  
Heat Power Plant

Pada penelitian ini, penulis melakukan review penggunaan fluida kerja ORC yang disimulasikan menggunakan EES dan melakukan review pada beberapa jurnal yang dilakukan sebelumnya. Fluida kerja yang dianalisa adalah isopentane sebagai fluida kerja yang dipakai, isobutane dan R245fa, dimana isobutane menghasil power output yang lebih tinggi dibandingkan dengan fluida sekunder lainnya karena enthalpi uap yang masuk ke turbine dan enthalpi uap yang masuk ke kondenser yang dihasilkan lebih tinggi dan ini menyebabkan kalor yang masuk ke dalam sistem ORC lebih tinggi dibandingkan dengan fluida kerja lainnya. Pada sistem ORC banyak pilihan fluida kerja dan bisa diaplikasikan dalam sistem baik secara aktual maupun masih dalam research, baik dalam off design dalam bentuk paper, jurnal maupun aplikasi teknologi secara langsung dalam pembangkit listrik panas bumi, waste heat recovery plant atau tipe combine cycle lainnya. Pada beberapa sistem yang diteliti, R227ea memiliki efisiensi thermal yang lebih baik daripada fluida sekunder lainnya. Sedangkan pada waste heat power plant, R134a memiliki efisiensi yang lebih baik dari fluida sekunder yang diteliti. Dan pada research lainnya HFE-301 memiliki efisiensi thermal sebesar 85% pada aplikasi Radial inflow turbine dengan kecepatan sekitar 60.000 rpm dan menghasilkan daya sebesar 1,5 kW.

Thermodynamic and Economic Analysis Between Organic Rankine Cycle and Kalina Cycle for Waste Heat Recovery From Steam-Assisted Gravity Drainage Process in Oilfield

2018 ◽  
Vol 140 (12) ◽  
Author(s):  
Li Zhang ◽  
Zhen Pan ◽  
Zhien Zhang ◽  
Liyan Shang ◽  
Jiangbo Wen ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Gravity Drainage ◽  
Inlet Temperature ◽  
Kalina Cycle ◽  
Steam Assisted Gravity Drainage

A thermodynamic and economic comparative analysis are presented for waste heat recovery (WHR) from the heavy oil production with steam-assisted gravity drainage (SAGD) process employing organic Rankine cycle (ORC) and Kalina cycle (KC). The liquefied natural gas (LNG) cold energy is employed as the cold source. Thus, a combined cooling heating and power system is proposed. The effect of key parameters on thermodynamic performance is investigated. The results showed that increasing the turbine inlet temperature (TIT), ORC is more appropriate for WHR in SAGD process than KC, but KC provides better energy use and exergy efficiency, while the reverse situation occurs when the evaporation pressure is increased. The compression ratio has little effect on the cold exergy recovery efficiency of the refrigeration cycles. In addition, the total exergy destruction and the total WHR efficiency in the combined SAGD/KC are slightly higher than these in the combined SAGD/ORC. Moreover, for the TIT below 180 °C and the evaporation pressure above 6 MPa, the SAGD/KC can obtain more energy return on investment (EROI) than SAGD/ORC. The results obtained through economic analysis show that the use of the SAGD/ORC is more economical. Through the thermos-economic comparison of the two combined systems, it helps to choose different combined cycles according to the different actual operation, which can facilitate the future engineering applications.

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