An Energy Investigation of An Organic Rankine Cycle Utilizing Three Organic Fluids

Abstract

This study presents an energy study of an Organic Rankine Cycle (ORC) by comparing three organic fluids. The latter is considered as a promising cycle for the conversion of heat into mechanical energy adapted to low-temperature heat sources; it uses more volatile organic fluids than water, which generally has high molecular weights, thus allowing operating pressures at temperatures lower than those of the traditional Rankine cycle. This study devoted to the energy analysis of the ORC cycle, taking into account the effect of the operating temperatures and the choice of the organic fluid on the cycle performance. The utilized three fluids were Toluene, R245fa and R123. The results obtained show that the Toluene organic fluid has the best energy efficiency of the cycle with 7.45%.

Keywords:

ORC cycle, Energy Analysis, Organic Fluids, Performance, Toluene.

DOI: 10.17350/HJSE19030000170

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References

1. Energy Information Administration (2017). International
energyoutlook, USA: Accessed from "https://www.eia.gov/
outlooks/ieo/#1".

2. Braimakis, K., &Karellas, S. (2018). Energetic optimization of
regenerative Organic Rankine Cycle (ORC) configurations. Energy
Conversion and Management, 159, 353-370.

3. Heberle, F., &Brüggemann, D. (2010). Exergy based fluid selection
for a geothermal Organic Rankine Cycle for combined heat and
power generation. Applied Thermal Engineering, 30(11-12), 1326-
1332.

4. Liu, Q., Duan, Y., & Yang, Z. (2013). Performance analyses of
geothermal organic Rankine cycles with selected hydrocarbon
working fluids. Energy, 63, 123-132.

5. Bu, X., Wang, L., & Li, H. (2013). Performance analysis and working
fluid selection for geothermal energy-powered organic Rankinevapor
compression air conditioning. Geothermal Energy, 1(1), 2.

6. Drescher, U., &Brüggemann, D. (2007). Fluid selection for the
Organic Rankine Cycle (ORC) in biomass power and heat plants.
Applied thermal engineering, 27(1), 223-228.

7. Taljan, G., Verbič, G., Pantoš, M., Sakulin, M., &Fickert, L. (2012).
Optimal sizing of biomass-fired Organic Rankine Cycle CHP
system with heat storage. RenewableEnergy, 41, 29-38.

8. Sun, W., Yue, X., & Wang, Y. (2017). Exergy efficiency analysis of
ORC (Organic Rankine Cycle) and ORC-based combined cycles
driven by low-temperature waste heat. Energy Conversion and
Management, 135, 63-73.

9. Rayegan, R., & Tao, Y. X. (2011). A procedure to select working
fluids for Solar Organic Rankine Cycles (ORCs). RenewableEnergy,
36(2), 659-670.

10. Shaaban, S. (2016). Analysis of an integrated solarc ombined cycle
with steam and organic Rankine cycles as bottoming cycles. Energy
Conversion and Management, 126, 1003-1012.

11. Solkane 8.0.0, Solvay Special Chemicals.
Published
2020-03-26
How to Cite
Touaibi, R., Koten, H., & Boydak, O. (2020). An Energy Investigation of An Organic Rankine Cycle Utilizing Three Organic Fluids. Hittite Journal of Science & Engineering, 7(1), 41-44. Retrieved from https://www.hjse.hitit.edu.tr/hjse/index.php/HJSE/article/view/445
Section
ENGINEERING