Yıl 2018, Cilt 21, Sayı 3, Sayfalar 158 - 172 2018-09-01
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## Effective temperature and performance characteristics of heat engines

#### mahmoud huleihil [1]

##### 95 105

For a heat engine working between two heat reservoirs, a hot reservoir at high temperature TH and a cold reservoir at low temperature TL, an effective temperature and an effective efficiency are introduced.

The effective temperature is defined as the square root of the ratio between the net work output of the heat engine wnet and the SOT function (a new function introduced in this article). The SOT function is defined as the negative of the cyclic integral of the heat transfer change divided by the square of the temperature.

The effective efficiency of the heat engine is defined (a novel definition) as one minus the ratio between the low temperature and the effective temperature.

The effective temperature and the effective efficiency are worked out in details for the Carnot heat engine and the air standard cycles (Otto, Brayton, Stirling, and Ericsson).

It was found for the considered cycles that the effective temperature is given by the expression ()  and the effective efficiency is given by the expression ()  for all the considered cycles.

The importance of these two proposed measures is twofold: educational and they could be used as a quick tool by the designer.

heat engine, temperature, performance characteristics
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Birincil Dil en Mühendislik Regular Original Research Article Yazar: mahmoud huleihil (Sorumlu Yazar)Ülke: Israel
 Bibtex @araştırma makalesi { ijot414698, journal = {International Journal of Thermodynamics}, issn = {1301-9724}, eissn = {2146-1511}, address = {Yaşar DEMİREL}, year = {2018}, volume = {21}, pages = {158 - 172}, doi = {10.5541/ijot.414698}, title = {Effective temperature and performance characteristics of heat engines}, key = {cite}, author = {huleihil, mahmoud} } APA huleihil, m . (2018). Effective temperature and performance characteristics of heat engines. International Journal of Thermodynamics, 21 (3), 158-172. DOI: 10.5541/ijot.414698 MLA huleihil, m . "Effective temperature and performance characteristics of heat engines". International Journal of Thermodynamics 21 (2018): 158-172 Chicago huleihil, m . "Effective temperature and performance characteristics of heat engines". International Journal of Thermodynamics 21 (2018): 158-172 RIS TY - JOUR T1 - Effective temperature and performance characteristics of heat engines AU - mahmoud huleihil Y1 - 2018 PY - 2018 N1 - doi: 10.5541/ijot.414698 DO - 10.5541/ijot.414698 T2 - International Journal of Thermodynamics JF - Journal JO - JOR SP - 158 EP - 172 VL - 21 IS - 3 SN - 1301-9724-2146-1511 M3 - doi: 10.5541/ijot.414698 UR - http://dx.doi.org/10.5541/ijot.414698 Y2 - 2018 ER - EndNote %0 International Journal of Thermodynamics Effective temperature and performance characteristics of heat engines %A mahmoud huleihil %T Effective temperature and performance characteristics of heat engines %D 2018 %J International Journal of Thermodynamics %P 1301-9724-2146-1511 %V 21 %N 3 %R doi: 10.5541/ijot.414698 %U 10.5541/ijot.414698 ISNAD huleihil, mahmoud . "Effective temperature and performance characteristics of heat engines". International Journal of Thermodynamics 21 / 3 (Eylül 2018): 158-172. http://dx.doi.org/10.5541/ijot.414698