TY - JOUR
T1 - A novel solar assisted multigeneration system devoid of external utilities for drought adaptation considering water-exergy nexus analysis
AU - Tariq, Shahzeb
AU - Safder, Usman
AU - Nguyen, Hai Tra
AU - Ifaei, Pouya
AU - Heo, Sung Ku
AU - Yoo, Chang Kyoo
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/11/5
Y1 - 2021/11/5
N2 - Conventional steam-driven multigeneration systems contribute to environmental damage by losing significant freshwater and emitting greenhouse gases. Here, a novel solar-powered steam jet ejector-based multigeneration system independent of external cold utilities is proposed for climate change adaptation. A Rankine cycle, an organic Rankine cycle, and a reverse osmosis desalination unit are fully integrated for clean power, cooling, and freshwater production employing. The thermo-mathematical model was evaluated considering thermodynamic efficiencies, annual costs, exergorisk, and global warming potential in a stand-alone and comparative framework. The water utilization of the hot utility was compared with two traditional fossil fuels by conducting a water-exergy nexus analysis. The analytical results showed that most of the total exergy destruction (73%) occurred in the solar collectors. The proposed system had 0.0171 $.MWh−1 cost of energy and an exergy efficiency of 57.29 % by employing R11. Compared to a natural gas-fired utility, the proposed solar-powered system reduced freshwater withdrawal, and consumption by 16 and 13 times, respectively. The system could achieve the exergetic efficiency of 74.37 % with the cost of energy of 0.013 $.MW−1 in a parametric model. Finally, R365mfc emerged as the optimal fluid for the proposed system by satisfying all performance criteria.
AB - Conventional steam-driven multigeneration systems contribute to environmental damage by losing significant freshwater and emitting greenhouse gases. Here, a novel solar-powered steam jet ejector-based multigeneration system independent of external cold utilities is proposed for climate change adaptation. A Rankine cycle, an organic Rankine cycle, and a reverse osmosis desalination unit are fully integrated for clean power, cooling, and freshwater production employing. The thermo-mathematical model was evaluated considering thermodynamic efficiencies, annual costs, exergorisk, and global warming potential in a stand-alone and comparative framework. The water utilization of the hot utility was compared with two traditional fossil fuels by conducting a water-exergy nexus analysis. The analytical results showed that most of the total exergy destruction (73%) occurred in the solar collectors. The proposed system had 0.0171 $.MWh−1 cost of energy and an exergy efficiency of 57.29 % by employing R11. Compared to a natural gas-fired utility, the proposed solar-powered system reduced freshwater withdrawal, and consumption by 16 and 13 times, respectively. The system could achieve the exergetic efficiency of 74.37 % with the cost of energy of 0.013 $.MW−1 in a parametric model. Finally, R365mfc emerged as the optimal fluid for the proposed system by satisfying all performance criteria.
KW - Climate change adaptation
KW - Exergorisk analysis
KW - Power-cooling-freshwater multigeneration
KW - Solar-powered
KW - Water-exergy nexus
UR - http://www.scopus.com/inward/record.url?scp=85114160436&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2021.117500
DO - 10.1016/j.applthermaleng.2021.117500
M3 - Article
AN - SCOPUS:85114160436
SN - 1359-4311
VL - 198
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
M1 - 117500
ER -
