Heat transfer enhancement in a parabolic trough solar
In this paper we present a three dimensional numerical investigation of heat transfer in a parabolic trough collector receiver with longitudinal fins using different kinds of nanofluid with an operational temperature of 573 K and nanoparticle concentration of 1 in volume. The outer surface of the absorber receives a non-uniform heat flux which is obtained by using the Monte Carlo ray
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THERMAL PERFORMANCE AND HEAT TRANSFER ENHANCEMENT OF PARABOLIC TROUGH RECEIVERS –NUMERICAL INVESTIGATION THERMODYNAMIC AND MULTI-OBJECTIVE OPTIMISATION Parabolic trough collector (Maria Trimarchi 2012) (c) Solar dish (C. Rubens 2008) (d) Solar tower (Ariel Schwartz 2012)
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DOI 10.1016/J.RSER.2014.02.028 Corpus ID . Heat transfer enhancement in parabolic trough collector tube using Al2O3/synthetic oil nanofluid article Sokhansefat2014HeatTE title= Heat transfer enhancement in parabolic trough collector tube using Al2O3/synthetic oil nanofluid author= T. Sokhansefat and A. Kasaeian and F. Kowsary journal= Renewable Sustainable Energy
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Apr 08 2020 · The numerical results indicated that the introduction of the corrugated insert inside the absorber tube of the parabolic trough receiver can effectively enhance the heat transfer performance where the average Nusselt number can be increased up to 3.7 times compared to the smooth absorber.
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The heat transfer Augmentation with flow of water and silver Nanofliud in Absorber of parabolic trough collector has been observed the use of twisted tape inserts for further enhancement
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was conducted for the absorber tube where the heat transfer fluid flowed in an annular fashion. Kalogirou 8 developed a detailed thermal model of a parabolic . Investigation of Heat Transfer Enhancement in a Parabolic Trough Collector with a Modified Absorber . A. Kajavali 1 B. Sivaraman and N. Kulasekharan rericjournal.ait.ac.th
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Recently the thermal performance of the parabolic trough collector (PTC) augmented to be more applicable and efficient received intensive research. These studies aimed to improve heat transfer in the receiver part in order to decrease the heat loss and enhance the heat transfer to the thermal fluid.
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Parabolic Trough Collector (PTC) is considered as one of the most typical concentrated solar power devices Akbarzadeh S. Valipour M. S. Heat transfer enhancement in parabolic trough collectors A comprehensive review Renewable and Sustainable Energy Reviews Vol. 92
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KeywordsFriction factor heat transfer nanofluids parabolic trough collector twisted tape. 1. INTRODUCTION . Solar technologies can be used for a variety of applications such as electricity generation steam generation and some air cooling systems. Parabolic trough has obtained wide popularity in the solar technologies.
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Keywords numerical investigation parabolic trough solar collector heat transfer enhancement turbulent flow dimpled tube. Received 16/11/2017Accepted 15/12/2017 I. Introduction Heat transfer enhancement is an active and important field of engineering research. Many studies are carried
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Sep 17 2016 · In this paper we present a three dimensional numerical investigation of heat transfer in a parabolic trough collector receiver with longitudinal fins using different kinds of nanofluid with an operational temperature of 573 K and nanoparticle concentration of 1 in volume. The outer surface of the absorber receives a non-uniform heat flux which is obtained by using the Monte Carlo ray
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Enhancement of Efficacy and Heat Transfer Characteristics of Tio2 Nano Fluids under Turbulent Flow Conditions in Parabolic Trough Solar Collector International Journal of Mechanical Engineering and Technology 11(3) 2020 pp. 68-79.
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82 which increased heat transfer by 1.2 at a velocity of 1m/s 28 . Khullar et al. 29 studied the 83 performance of concentrated solar parabolic trough collector quantitatively and theoretically. 84 The result showed that the efficiency of the solar collector could be enhanced using nanofluids in 85 low concentrations by 5–10 .
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Dec 01 2020 · Thermal performance analysis of a direct-absorption parabolic-trough solar collector by taking plasmonic nanofluids as the working fluid was conducted by Qin et al. and thermal efficiency was noted to enhancement for PTC for low enthalpy by using twisted tape inserts was also studied with maximum thermal efficiency of 64 .
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investigations on heat transfer friction factor of silver nanofluid in absorber or receiver of parabolic trough collector with twisted tape inserts. They made experiment with Reynolds number range 500 to 6000 with twisted tape inserts of different twist ratios in the range 0.577 ≤ H/D ≤ 1.732.
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DOI 10.1016/J.RSER.2014.02.028 Corpus ID . Heat transfer enhancement in parabolic trough collector tube using Al2O3/synthetic oil nanofluid article Sokhansefat2014HeatTE title= Heat transfer enhancement in parabolic trough collector tube using Al2O3/synthetic oil nanofluid author= T. Sokhansefat and A. Kasaeian and F. Kowsary journal= Renewable Sustainable Energy
Get PriceHeat transfer enhancement in a parabolic trough solar
In this paper we present a three dimensional numerical investigation of heat transfer in a parabolic trough collector receiver with longitudinal fins using different kinds of nanofluid with an operational temperature of 573 K and nanoparticle concentration of 1 in volume. The outer surface of the absorber receives a non-uniform heat flux which is obtained by using the Monte Carlo ray
Get PriceEnhancement Techniques of Parabolic Trough Collectors A
Parabolic Trough Collectors (PTC) are one of the most widely used technology amongst the solar thermal systems used by the power generation industry. In recent years numerous scientific investigations have focused on this topic to assess the thermal performance and to improve its thermal efficiency.
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of nanofluids as a working fluid and passive heat transfer enhancement techniques (inserts for the solar receiver). Keywords Nanofluids Parabolic trough collector Passive heat transfer enhancements Solar thermal energy
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Moreover passive methods for heat transfer enhancement in PTCs are investigated and the effect of using nanofluids as a working fluid is reviewed. This review can open new horizons for further investigations in this field. Mohammad Sadegh 2020. "Energy and exergy analysis of a parabolic trough collector using helically corrugated absorber
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THERMAL PERFORMANCE AND HEAT TRANSFER ENHANCEMENT OF PARABOLIC TROUGH RECEIVERS –NUMERICAL INVESTIGATION THERMODYNAMIC AND MULTI-OBJECTIVE OPTIMISATION Parabolic trough collector (Maria Trimarchi 2012) (c) Solar dish (C. Rubens 2008) (d) Solar tower (Ariel Schwartz 2012)
Get PriceHeat Transfer Enhancement Analysis of Tube Receiver for
Apr 08 2020 · The numerical results indicated that the introduction of the corrugated insert inside the absorber tube of the parabolic trough receiver can effectively enhance the heat transfer performance where the average Nusselt number can be increased up to 3.7 times compared to the smooth absorber.
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Downloadable (with restrictions) With the aim to increase the overall heat transfer performance and reliability of tube receiver for parabolic trough solar collector system asymmetric outward convex corrugated tube is introduced as the metal tube of parabolic trough receiver. An optical-thermal-structural sequential coupled method was developed to study the heat transfer performance and
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Numerical study on heat transfer enhancement in a receiver tube of parabolic trough solar collector with dimples protrusions and helical fins Z. Huanga G.L. Yua Z.Y. Lia W.Q. Taoa
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May 01 2014 · Kasaeian et al. investigated the heat transfer enhancement for Al 2 O 3 /synthetic oil nanofluid in a parabolic trough collector tube numerically. Their results show that the heat transfer coefficient is increased as the concentration of the nanoparticles in the base fluid is increased.
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Moreover passive methods for heat transfer enhancement in PTCs are investigated and the effect of using nanofluids as a working fluid is reviewed. This review can open new horizons for further investigations in this field. Mohammad Sadegh 2020. "Energy and exergy analysis of a parabolic trough collector using helically corrugated absorber
Get PriceHEAT TRANSFER ENHANCEMENT IN A PARABOLIC TROUGH COLLECTOR
The parabolic trough collector (PTC) is the most deployed solar concentrating collector in the world. Thermal performance analysis of the collector is performed in this thesis with the aim of
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Downloadable (with restrictions) The efficiency of a parabolic trough solar collector (PTSC) was enhanced by using TiO2/DI-H2O (De-Ionized water) nanofluid. Test samples consisting of nanofluids with concentrations of 0.05 0.1 0.2 and 0.5 were compared with deionized water (the base fluid) at different flow rates under turbulent flow regimes (2950 ≤ Re ≤ 8142).
Get PriceEnhancement Techniques of Parabolic Trough Collectors A
Parabolic Trough Collectors (PTC) are one of the most widely used technology amongst the solar thermal systems used by the power generation industry. In recent years numerous scientific investigations have focused on this topic to assess the thermal performance and to improve its thermal efficiency.
Get PriceENHANCEMENT OF EFFICACY AND HEAT TRANSFER
Enhancement of Efficacy and Heat Transfer Characteristics of Tio2 Nano Fluids under Turbulent Flow Conditions in Parabolic Trough Solar Collector International Journal of Mechanical Engineering and Technology 11(3) 2020 pp. 68-79.
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