Year 2018, Volume 5 , Issue 3, Pages 140 - 146 2018-12-13

Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions

Ali KAHRAMAN [1] , Remzi ŞAHİN [2] , Sadık ATA [3]


In this study, the effect of turbine inlet temperature change on organic fluid performance in three different Organic Rankine Cycle (ORC) models designed using R113, R123 and isopentane fluid was determined. With the MATLAB and EES program, 17 different models have been formed for the heat source temperature that changes with the turbine inlet temperature. By analyzing the determined organic fluids on the generated models, the amount of heat entering the system, the work produced by the turbine, thermal efficiency, total exergy destruction and exergy efficiency were determined. While turbine inlet temperature is 80oC and heat source temperature is 110oC, isopentane fluid can reach maximum 8.8% while R113 fluid has reached 12.4% in same design conditions. With all cases examined, it is stated that isopentane fluid needs more heat input per unit mass compared to other fluids. While the maximum value of 531.7 kJ/kg heat input is required for isopentane fluid, R113 and R123 fluids require a maximum of 220.2 kJ/kg and 246.8 kJ/kg respectively. When the work values obtained from the turbine are examined, it is stated that R113 and R123 fluids show close properties. In this study, a maximum of 21.63 kJ/kg and 26.98 kJ / kg turbines were obtained for R113 and R123, while a 45.35 kJ/kg turbine work was obtained in the model using isopentane fluid. In exergy analysis, it was found that the best exergy efficiency performance was obtained in R113 fluid with 56.3%. In addition, the effect of overheating the organic fluid on the energy and exergy efficiency of the system was determined by the constant acceptance of the turbine inlet pressure.

Organic Rankine Cycle (ORC), Engineering Equation Solver (EES), Energy, Exergy, Dry Fluids
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Primary Language en
Subjects Engineering, Mechanical
Journal Section Research Article
Authors

Author: Ali KAHRAMAN
Institution: NECMETTİN ERBAKAN ÜNİVERSİTESİ, MÜHENDİSLİK VE MİMARLIK FAKÜLTESİ
Country: Turkey


Author: Remzi ŞAHİN
Institution: KTO KARATAY ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ
Country: Turkey


Author: Sadık ATA (Primary Author)
Institution: KTO KARATAY ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ
Country: Turkey


Dates

Publication Date : December 13, 2018

Bibtex @research article { ijeat444461, journal = {International Journal of Energy Applications and Technologies}, issn = {}, eissn = {2548-060X}, address = {editor.ijeat@gmail.com}, publisher = {İlker ÖRS}, year = {2018}, volume = {5}, pages = {140 - 146}, doi = {10.31593/ijeat.444461}, title = {Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions}, key = {cite}, author = {KAHRAMAN, Ali and ŞAHİN, Remzi and ATA, Sadık} }
APA KAHRAMAN, A , ŞAHİN, R , ATA, S . (2018). Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions. International Journal of Energy Applications and Technologies , 5 (3) , 140-146 . DOI: 10.31593/ijeat.444461
MLA KAHRAMAN, A , ŞAHİN, R , ATA, S . "Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions". International Journal of Energy Applications and Technologies 5 (2018 ): 140-146 <https://dergipark.org.tr/en/pub/ijeat/issue/41119/444461>
Chicago KAHRAMAN, A , ŞAHİN, R , ATA, S . "Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions". International Journal of Energy Applications and Technologies 5 (2018 ): 140-146
RIS TY - JOUR T1 - Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions AU - Ali KAHRAMAN , Remzi ŞAHİN , Sadık ATA Y1 - 2018 PY - 2018 N1 - doi: 10.31593/ijeat.444461 DO - 10.31593/ijeat.444461 T2 - International Journal of Energy Applications and Technologies JF - Journal JO - JOR SP - 140 EP - 146 VL - 5 IS - 3 SN - -2548-060X M3 - doi: 10.31593/ijeat.444461 UR - https://doi.org/10.31593/ijeat.444461 Y2 - 2018 ER -
EndNote %0 International Journal of Energy Applications and Technologies Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions %A Ali KAHRAMAN , Remzi ŞAHİN , Sadık ATA %T Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions %D 2018 %J International Journal of Energy Applications and Technologies %P -2548-060X %V 5 %N 3 %R doi: 10.31593/ijeat.444461 %U 10.31593/ijeat.444461
ISNAD KAHRAMAN, Ali , ŞAHİN, Remzi , ATA, Sadık . "Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions". International Journal of Energy Applications and Technologies 5 / 3 (December 2018): 140-146 . https://doi.org/10.31593/ijeat.444461
AMA KAHRAMAN A , ŞAHİN R , ATA S . Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions. IJEAT. 2018; 5(3): 140-146.
Vancouver KAHRAMAN A , ŞAHİN R , ATA S . Energy and exergy analysis of an organic Rankine cycle under different heat source and turbine inlet temperature conditions. International Journal of Energy Applications and Technologies. 2018; 5(3): 146-140.