Yıl 2019, Cilt 5, Sayı 6, Sayfalar 141 - 148 2019-11-27

A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION

Sinan Karakurt [1] , Umit Gunes [2]


Increasing oil prices, the growing demand for energy, the adoption of new regulations for greenhouse gases and other harmful particulate emissions, as well as political instabilities and crises have necessitated the design of more efficient and environmentally-friendly plants. This paper presents a useful combination of mean cycle irreversibility (MCI) for thermodynamically optimizing the Rankine cycle using the MCI as the currently proposed criterion. The thermal irreversibilities and physical size of a system are evaluated together using the criterion that aims to minimize the ratio of the thermal irreversibilities or exergy destruction to a specified size that is characterized as the difference between the maximum and the minimum specific volumes of the cycle. The analyses consider the effects of different boiler-outlet or turbine-inlet pressures and temperatures, different condenser pressures, and different isentropic efficiencies on cycle performance. The results show that increasing the inlet temperature for a constant turbine-inlet pressure increases the MCI and increasing the turbine-inlet pressure at a constant inlet temperature decreases the MCI. With boiler pressure at 500 kPa, the boiler temperature increases from 500K to 600K, the MCI value increases nearly seven-fold, and thermal efficiency increases from 14% to nearly 16%. Also, the results show that the criterion gives more beneficial information to designers and engineers in terms of exergy destruction for designing more environmentally friendly and smaller thermal systems.
Rankine Cycle, Entropy Generation, Exergy Density
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Birincil Dil en
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Yazar: Sinan Karakurt (Sorumlu Yazar)
Kurum: Yildiz Technical University
Ülke: Turkey


Yazar: Umit Gunes
Kurum: Yildiz Technical University
Ülke: Turkey


Tarihler

Yayımlanma Tarihi : 27 Kasım 2019

Bibtex @araştırma makalesi { thermal651508, journal = {Journal of Thermal Engineering}, issn = {}, eissn = {2148-7847}, address = {}, publisher = {Yıldız Teknik Üniversitesi}, year = {2019}, volume = {5}, pages = {141 - 148}, doi = {10.18186/thermal.651508}, title = {A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION}, key = {cite}, author = {Karakurt, Sinan and Gunes, Umit} }
APA Karakurt, S , Gunes, U . (2019). A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION. Journal of Thermal Engineering , 5 (6) , 141-148 . DOI: 10.18186/thermal.651508
MLA Karakurt, S , Gunes, U . "A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION". Journal of Thermal Engineering 5 (2019 ): 141-148 <https://dergipark.org.tr/tr/pub/thermal/issue/49381/651508>
Chicago Karakurt, S , Gunes, U . "A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION". Journal of Thermal Engineering 5 (2019 ): 141-148
RIS TY - JOUR T1 - A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION AU - Sinan Karakurt , Umit Gunes Y1 - 2019 PY - 2019 N1 - doi: 10.18186/thermal.651508 DO - 10.18186/thermal.651508 T2 - Journal of Thermal Engineering JF - Journal JO - JOR SP - 141 EP - 148 VL - 5 IS - 6 SN - -2148-7847 M3 - doi: 10.18186/thermal.651508 UR - https://doi.org/10.18186/thermal.651508 Y2 - 2019 ER -
EndNote %0 Journal of Thermal Engineering A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION %A Sinan Karakurt , Umit Gunes %T A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION %D 2019 %J Journal of Thermal Engineering %P -2148-7847 %V 5 %N 6 %R doi: 10.18186/thermal.651508 %U 10.18186/thermal.651508
ISNAD Karakurt, Sinan , Gunes, Umit . "A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION". Journal of Thermal Engineering 5 / 6 (Kasım 2019): 141-148 . https://doi.org/10.18186/thermal.651508
AMA Karakurt S , Gunes U . A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION. Journal of Thermal Engineering. 2019; 5(6): 141-148.
Vancouver Karakurt S , Gunes U . A NEW APPROACH FOR EVALUATING THE RANKINE CYCLE THROUGH ENTROPY GENERATION. Journal of Thermal Engineering. 2019; 5(6): 148-141.