Experimental study of pressure rise at the evaporator of capillary pumped loop with acetone and water as working fluids

Szymański, Paweł; Mikielewicz, Dariusz

doi:10.1016/j.expthermflusci.2017.05.004

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…This may also be the reason for the obtainted results. Szymanski et al [18] investigated that the pressure rise at evaporator of capillar pumped loop using pure acetone as working fluid. They reported that the acetone has low boiling point which induced to high evaportaion rate.…”

Section: Resultsmentioning

confidence: 99%

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Enhanced heat transfer by thermosyphon method in electronic devices

Kannan¹,

Kamatchi²,

Venkatajalapathi³

et al. 2018

IJHT

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In the present work, the heat dissipation rate and thermal resistance of electronic cooling system is investigated with different coolants by two-phase closed loop thermosyphon method for both steady and unsteady state conditions. The coolants used in this study are acetone, alcohol and petrol respectively and are poured in the created test facility. A square heater of size 35 × 35 mm is fixed in the primary tank and used as a heat source. The heat input is given to the system varies from 10 to 60 W. The temperature of the experimental setup is measured by seven K-type thermocouples which are attached at various locations. Results indicate that (i) the convective heat transfer coefficient increases and thermal resistance decreases with increasing of heat input for all the coolants (ii) the acetone has high heat removal rate of 65.4 % at 60 W due to low boiling point, high latent heat of evaporation and less effect on subcooling, which directly helps in phase change process and heat extraction rate (iii) a maximum reduction in thermal resistance of about 0.523 0 C/W for acetone in comparison with alcohol and petrol by virtue of its high superheat which accelerates to nucleate boiling.

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Section: Resultsmentioning

confidence: 99%

“…The high heat transfer coefficient for acetone is mainly because of the high specific heat and low viscosity [18,19]. Also, the system reaches steady state much more faster than for alcohol and petrol [15].…”

Section: Effect Of Heat Input On Rate Of Heat Removalmentioning

confidence: 99%

Enhanced heat transfer by thermosyphon method in electronic devices

Kannan¹,

Kamatchi²,

Venkatajalapathi³

et al. 2018

IJHT

View full text Add to dashboard Cite

show abstract

“…Acetone has been experimentally used as a working fluid [1,27,44,46,47]. Other procedures to select working fluids for ORC systems indicate that acetone achieves a high performance for ORC at 130 • C [21].…”

Section: Orc With Acetone As the Working Fluidmentioning

confidence: 99%

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Leal-Chávez¹,

Beltran-Chacon²,

Cardenas-Terrazas³

et al. 2020

Entropy: Theory and New Insights

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This paper proposes the configuration of an Organic Rankine Cycle (ORC) coupled to a solar domestic hot water system (SDHWS) with the purpose of analyzing the cogeneration capacity of the system. A simulation of the SDHWS was conducted at different temperatures, observing its performance to determine the amounts of useable heat generated by the solar collector; thus, from an energy balance point of view, the amount of heat that may be used by the ORC could be determined. The working fluid that would be suitable for the temperatures and pressures in the system was selected. The best fluid for the given conditions of superheated vapor at 120 • C and 604 kPa and a condensation temperature of 60 • C and 115 kPa was acetone. The main parameters for the expander thermodynamic design that may be used by the ORC were obtained, with the possibility of generating 443 kWh of annual electric energy with 6.65% global efficiency of solar to electric power, or an overall efficiency of the cogeneration system of 56.35% with a solar collector of 2.84 m 2 .

show abstract

“…Acetone has been experimentally used as a working fluid [ 1 , 27 , 44 , 46 , 47 ]. Other procedures to select working fluids for ORC systems indicate that acetone achieves a high performance for ORC at 130 °C [ 21 ].…”

Section: Orc Efficienciesmentioning

confidence: 99%

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Leal-Chávez

Beltran-Chacon

Cardenas-Terrazas

et al. 2019

Entropy

View full text Add to dashboard Cite

This paper proposes the configuration of an Organic Rankine Cycle (ORC) coupled to a solar domestic hot water system (SDHWS) with the purpose of analyzing the cogeneration capacity of the system. A simulation of the SDHWS was conducted at different temperatures, observing its performance to determine the amounts of useable heat generated by the solar collector; thus, from an energy balance point of view, the amount of heat that may be used by the ORC could be determined. The working fluid that would be suitable for the temperatures and pressures in the system was selected. The best fluid for the given conditions of superheated vapor at 120 °C and 604 kPa and a condensation temperature of 60 °C and 115 kPa was acetone. The main parameters for the expander thermodynamic design that may be used by the ORC were obtained, with the possibility of generating 443 kWh of annual electric energy with 6.65% global efficiency of solar to electric power, or an overall efficiency of the cogeneration system of 56.35% with a solar collector of 2.84 m2.

show abstract

Experimental study of pressure rise at the evaporator of capillary pumped loop with acetone and water as working fluids

Cited by 5 publications

References 12 publications

Enhanced heat transfer by thermosyphon method in electronic devices

Enhanced heat transfer by thermosyphon method in electronic devices

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

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