Effect of phase change materials on the performance of direct vapor generation solar organic Rankine cycle system

Alvi, Jahan Zeb; Feng, Yongqiang; Wang, Qian; Imran, Muhammad; Pei, Gang

doi:10.1016/j.energy.2021.120006

Cited by 9 publications

(1 citation statement)

References 39 publications

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“…Sun et al, 2021;Ping et al, 2021). However, applying low to medium temperature of waste heat source temperature (<350 C) reveals that more than 50% of industrial waste heat by driving several waste heat recovery applications can reduce these harmful environmental obstacles and, on the other hand, able to convert these waste heat source into power (Alvi et al, 2021a;Yu et al, 2021;Zhang et al, 2020;Ahmadi et al, 2020;Li et al, 2017;Li et al, 2018;Vélez et al, 2012;Peris et al, 2015;Imran et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Subcritical Organic Rankine Cycle by Pure and Zeotropic of Binary and Ternary Refrigerants

Rowshanaie¹,

Tohir²,

Mustapha³

et al. 2022

JST

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The simulation configuration and process analysis of the Subcritical Organic Rankine Cycle (SORC) system are carried out for the potential comparison between pure, binary, and ternary zeotropic mixtures of R1234ze(E), R1234yf, and R134a as refrigerant working fluids based on applying the flue gas as a heat source with medium temperature. The compression pressure was selected as an optimized variable input parameter of SORC with the lower limit of boundary condition (1.4 MPa); to mitigate air ingress and sub-atmospheric pressure that led to approach optimum net power output generated. Increasing the compression pressure has a positive relationship with the superheated temperature and the mass enthalpy change in the evaporation and, therefore, in the expansion process. In parallel, the enthalpy and entropy changes in the flue gas and cold water positively correlate with exergy efficiency. So, R1234ze(E)/ R1234yf/R134a with 68.35% and R1234yf/ R134a with 69.29% as the lowest and highest exergy efficiency in the highest compression pressure; furthermore, the SIC consequences of increasing the cost of each component of the SORC system that has a direct relationship with the PPC and the required exchanger area of evaporation and condensation process and generating a net power output of the turbine. As a result, the maximum to the minimum value of specific investment cost (SIC) achieves R134a with 5807402.18-22455670.61 $.kW-1 and R1234yf with 16.82-17.38% reduction, respectively. To sum up, the lowest payback period (PBP) was R1234yf with 302 days.

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