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Keywords: exergy
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Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. December 2021, 143(6): 061009.
Paper No: SOL-21-1004
Published Online: June 15, 2021
... produced by turbine, refrigeration load, exergy of refrigeration, and efficiencies of trigeneration system. An increase in the concentration of the ammonia–water basic solution is leading toward the significant increase in the turbine power and the elevation of trigeneration system’s energy and exergy...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. August 2021, 143(4): 041004.
Paper No: SOL-20-1193
Published Online: November 20, 2020
... are calculated to be 21.03%, 20.42%, and 22.47%, respectively. Overall energy and exergy efficiency values are found to be 13.39% and 14.37%; 11.90% and 13.74%; 12.13% and 13.64% for the solar thermal power plants using PTC, LFR, and ST technologies, respectively. In conclusion, it is seen that LFR technology...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. June 2021, 143(3): 031003.
Paper No: SOL-20-1203
Published Online: October 5, 2020
... exergy. This work presents an attempt to determine the amount of exergy generated by an optimally inclined double-storied BIPV thermal system by considering the actual cyclic nature of insolation, surrounding air temperature, PV cell temperature, intermediate slab temperature, and the chamber temperature...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. December 2020, 142(6): 061004.
Paper No: SOL-19-1442
Published Online: May 5, 2020
.... The simulation result demonstrates that the hybrid GOA-SA algorithm turned out to be an exceptionally effective method for optimal tuning of the parameters of the PVT-TE system. The result explicitly shows that the average value of overall electrical efficiency and exergy gain are 15.27% and 27.0565 W...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. December 2020, 142(6): 061005.
Paper No: SOL-19-1515
Published Online: May 5, 2020
... of fin diameter were reported by considering only the total melting time. In this work, both melting time and entropy generation are taken into account. Hence, the present optimized parameters will make LHSU efficient in terms of both energy and exergy. Table 3 Ranking of set of fin parameters...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. October 2020, 142(5): 051005.
Paper No: SOL-19-1208
Published Online: March 12, 2020
... to the Rankine cycles. The objective of the study is to develop an MGS without a gas cycle that can achieve higher energy and exergy efficiencies. Two concentrated solar technologies, namely, parabolic trough collectors (PTCs) and heliostats are used to power the designed system. The environmental benefit...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. October 2020, 142(5): 051003.
Paper No: SOL-19-1241
Published Online: February 28, 2020
... and exergy efficiency at various operating conditions of the proposed trigeneration system. The computed results are authenticated with the reported literature. A comparison is made between the present findings and reported results in the form of exergy efficiency, total exergy destroyed, and energy...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. June 2020, 142(3): 031007.
Paper No: SOL-19-1011
Published Online: January 21, 2020
... in the J ournal of S olar E nergy E ngineering : I ncluding W ind E nergy and B uilding E nergy C onservation . 10 01 2019 15 11 2019 22 11 2019 23 12 2019 evacuated tube thermal analysis annual performance solar air heater exergy analysis PCM energy exergy...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. April 2020, 142(2): 021010.
Paper No: SOL-19-1116
Published Online: November 8, 2019
... C onservation . 02 04 2019 16 10 2019 17 10 2019 30 10 2019 PV/T heat pump comparative study cooling efficiency exergy photovoltaics Energy consumption is increasing day by day due to population growth and advancing technology [ 1 ]. Renewable energy...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. April 2020, 142(2): 021002.
Paper No: SOL-18-1596
Published Online: September 18, 2019
... ]. Based on the lumped capacitance method, the heat transfer coefficient at the inner wall of the tank was calculated as follows: (9) h i = ( λ f d s ) ( 2.58 Re 1 / 3 + 0.094 Re 0.8 Pr 0.4 ) The entropy-related exergy...
Journal Articles
Article Type: Research Papers
J. Sol. Energy Eng. February 2020, 142(1): 011016.
Paper No: SOL-18-1577
Published Online: September 7, 2019
... ngineering : I ncluding W ind E nergy and B uilding E nergy C onservation . 20 12 2018 06 08 2019 13 08 2019 03 09 2019 BIPV CFD ventilation cooling PV performance temperature design environmental conditions building exergy heat transfer photovoltaics renewable...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. February 2020, 142(1): 011003.
Paper No: SOL-19-1038
Published Online: July 11, 2019
... convective heat transfer between the absorber and the air medium. In this present study, it is aimed to increase the convective heat transfer by modifying the absorber and the type of air flow inside the duct. Experimental studies were performed to study about the energy and exergy efficiencies of SAH...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2019, 141(6): 061014.
Paper No: SOL-18-1329
Published Online: June 28, 2019
... fluid, evaporator temperature, and generator temperature) are varied to analyze their influence on the performance parameters (power output, overall energetic and exergetic efficiencies, outlet temperature of the receiver, and as coefficient of performance (COP) and exergy efficiencies...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. August 2019, 141(4): 041008.
Paper No: SOL-18-1077
Published Online: February 19, 2019
... of the collector energy and exergy efficiency are collector inlet and outlet fluid temperatures, mass flow rate of the fluid, solar radiation, and ambient temperature. The flow rate of nanofluid and water varies from 1 to 5 lpm. The maximum energy efficiencies attained are 83.17% and 59.72%, whereas the maximum...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. June 2019, 141(3): 031011.
Paper No: SOL-18-1291
Published Online: November 14, 2018
.... The authors acknowledge the assistance of Dr. Edidiong Essien and Dr. Doga Kavaz of the environmental research laboratory of Cyprus international university in carrying out this study. A = area (m 2 ) C p = specific heat capacity (J/kg K) D = diameter (m) E = exergy (W...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2018, 140(6): 061011.
Paper No: SOL-18-1113
Published Online: July 9, 2018
... transfer, internally grooved tubes of two different pitches (e = 0.43 and e = 0.44) have been examined and compared against the performance of plain tube. The mass flow rate was fixed at 0.015 kg/s and the volume fraction of ZnO nanoparticles is ф = 0.02% v/v. The results indicate an enhancement in exergy...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2018, 140(6): 061004.
Paper No: SOL-17-1363
Published Online: June 26, 2018
...Juan Camilo López; Álvaro Restrepo; Edson Bazzo In this work, the exergy analysis of two configurations of hybrid solar–sugarcane cogeneration power plant is proposed in order to evaluate the overall efficiency enhancement of the cycle. Solar thermal energy was coupled to a sugarcane cogeneration...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. October 2018, 140(5): 051005.
Paper No: SOL-17-1381
Published Online: May 7, 2018
... in size and consists of 15 layers of coil pipe placed at its center. The MIX number and exergy efficiency were studied to quantify the thermal stratification of this water tank. A flow field analysis was also carried out to understand the heat transfer mechanism inside the water tank. Results indicate...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. December 2018, 140(6): 061002.
Paper No: SOL-17-1343
Published Online: April 16, 2018
..., 2017; final manuscript received March 22, 2018; published online April 16, 2018. Assoc. Editor: Geoffrey T. Klise. 20 08 2017 22 03 2018 Exergy Solar System Solar street lamps have been widely used. They have many merits such as high reliability and long life, and little...
Journal Articles
Article Type: Research-Article
J. Sol. Energy Eng. June 2018, 140(3): 031002.
Paper No: SOL-17-1324
Published Online: February 20, 2018
... taken into account, and a more accurate exergy factor corresponding to a correct value of 5770 K for the sun temperature was employed. The results demonstrate that copper–water nanofluid has the potential to augment the internal convection heat transfer coefficient by 76.5%, and to enhance the energetic...