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ABSTRACT
The performance deciders (response variables) were considered in this study, namely, thermal efficiency, exergetic efficiency, exergy destructions, and expander outlet to inlet specific volume flow ratio for optimization of low-grade heat source driven organic Rankine cycle (ORC) using zeotropic mixtures. Moreover, Taguchi of L9 of orthogonal array and the technique for order preference similar to ideal solution (TOPSIS) including entropy weight technique have been employed to get the optimal input parameters for considered response variables. Furthermore, results indicate that 0.9/0.1 is the optimal mass fraction for mixture butane/pentane and 0.1/0.9 is the optimal mass fraction for mixtures hexane/pentane and isohexane/pentane.
Abbreviations
| ANOM | = | Analysis of Mean |
| CDPT | = | Condensation dew point Temperature (K) |
| DOE | = | Design of experiment |
| EIT | = | Expander inlet Temperature (K) |
| EBPT | = | Evaporation bubble point Temperature (K) |
| h | = | specific enthalpy (kj/kg) |
| ED | = | exergy destruction rate in (W) |
| MF | = | Mass fraction |
| Q | = | Heat supplied in (W) |
| s | = | specific entropy (kJ/kgK) |
| T | = | Temperature (K) |
| TE | = | Thermal efficiency |
| EE | = | Exergetic efficiency |
| ESVFR | = | Expander specific volume flow ratio |
| W | = | Work transfer in (W) |
| TOPSIS | = | Technique for order preference similar to ideal solution |
Subscript
| in | = | Inlet |
| p | = | Pump |
| cond | = | Condenser |
| exp | = | Expander |
| th | = | Thermal |
| ex | = | Exergetic, exit |
| o | = | Ambient state |
Additional information
Notes on contributors
Deepak Tiwari
Deepak Tiwari working as Assistant Professor in Mechanical Engineering Department of Bhagwan Parshuram Institute of Technology, Delhi, India. His research area includes low-grade heat source power generation.
Ahmad Faizan Sherwani
Ahmad Faizan Sherwani is working as an Associate Professor in Department of Mechanical Engineering of Jamia Millia Islamia University, Delhi. His research area includes Solar Energy, alternate refrigeration technologies, exergy analysis of thermal systems and renewable, sustainable energy and life cycle analysis. He has published plenty of research paper in reputed international and national journals. He has worked as reviewer in several reputed general.
Mohd Muqeem
Mohd Muqeem received his Doctorate degree in Mechanical Engineering from Jamia Millia Islamia, New Delhi, India in 2019. He received his Master’s degree in Mechanical Engineering from IFTM University, India in 2013 and Bachelor’s degree in Mechanical Engineering from Uttar Pradesh Technical University, India in 2009. His area of research is IC engine and Thermal Engineering. Currently, he is working as Assistant Professor in Mechanical Engineering Department, IFTM University, Moradabad, Uttar Pradesh, India.
Ashwni Goyal
Ashwni Goyal working as Assistant Professor in Mechanical and Automation Engineering Department of Maharaja Agrasen Institute of Technology, Delhi, India.His Research area includes low- grade heat source power generation.