List of Articles Parabolic Solar Collector

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  1 - Evaluation of heat transfer performance of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation
  mojtaba jamiati Hossein Pourmohamadian
  In this study, the flow field analysis and heat transfer of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation have been investigated. The fluid used in this collector is nanofluid of water - Aluminium. The main aim of c More

  In this study, the flow field analysis and heat transfer of two-phase nanofluid flow in a parabolic solar collector with eccentric absorber and solid insulation have been investigated. The fluid used in this collector is nanofluid of water - Aluminium. The main aim of current study is to investigate the effect of using eccentric absorber system and solid insulation on the energy efficiency of linear parabolic collectors. For this purpose, energy efficiency has been measured and presented for different states (including ambient temperature, fluid inlet temperature, nanofluid volume fraction, nanoparticle diameter and geometric characteristics). The study is in turbulent flow regime and in order to model it, the k epsilon turbulence model has been used. In order to solve the survival equations, the finite volume method and the SIMPLE C algorithm have been used. Different optimal models are introduced in terms of having the highest energy efficiency, and the best model is determined. Based on obtained results, the highest energy efficiency in different Reynolds is related to the novel collector and two-phase model(TPM). In the next positions, respectively, are the novel collector and single-phase model(SPM), the basic collector and two-phase model, and at the end, the basic collector and single-phase model. It was also found that as the Reynolds number increases, all modes have an uptrend. The maximum amount of energy efficiency was for the novel collector and the two-phase model at Reynolds 15000, Which is equal to 68%. Also, the maximum energy efficiency for eccentricity 20 mm at Reynolds 15000, which is equal to 74.9%. Manuscript profile
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  2 - Effects of rotational flow on energy efficiency of a novel parabolic through solar collector equipped with elliptical ribbed absorber tube filled with non-Newtonian two-phase nanofluid
  mojtaba jamiati
  The main purpose of this study is to investigate the effect of using an elliptical absorber system with helical ribbed tube on the energy efficiency of linear parabolic collectors. For this purpose, energy efficiency has been measured and presented for different modes, More

  The main purpose of this study is to investigate the effect of using an elliptical absorber system with helical ribbed tube on the energy efficiency of linear parabolic collectors. For this purpose, energy efficiency has been measured and presented for different modes, and finally different optimal models are introduced in terms of having the highest energy efficiency, and finally the best model is determined. Based on the obtained results, the highest energy efficiency in different Reynolds is related to the new collector and single-phase model. According to the results of this dissertation, the use of grooved pipe has an effect on increasing the efficiency of the collector. As the number of grooves increases from 1 to 3, the collector efficiency increases. It was also found that the collector efficiency increases with increasing step and slope amplitude. by increasing the groove angle from 10 ° to 50 °, the collector efficiency increases and the maximum value of η is obtained at ° ξ = 60. However, by increasing the groove angle from 50 ° to 60 °, the collector efficiency decreases. Manuscript profile
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  3 - The effects of using two compound twisted tapes to enhance the performance of a parabolic trough solar collector
  mojtaba jamiati Hossein Pourmohamadian
  In this study, the effect of spinning tape on the thermal hydraulic performance of water-hybrid water-hybrid carbon nanotubes-aluminum oxide inside a linear parabolic solar collector has been investigated numerically. The study is in turbulent flow regime and in order t More

  In this study, the effect of spinning tape on the thermal hydraulic performance of water-hybrid water-hybrid carbon nanotubes-aluminum oxide inside a linear parabolic solar collector has been investigated numerically. The study is in turbulent flow regime and in order to model it, the k epsilon turbulence model has been used. In order to solve the survival equations, the finite volume method and the SIMPLE C algorithm have been used. The study was performed to investigate the hydraulic and thermal performance of the parabolic solar collector equipped with 1, 2 and 3 twisted strips. Also, the results obtained from the simulation of a linear parabolic solar collector with a radiant strip are compared with when the solar collector is simple (without a radiant strip). Different concentrations of nanoparticles (1 to 3% by volume) were used for Reynolds numbers from 3000 to 18000. The obtained results are presented in the form of Nusselt dimensionless number diagrams, pressure drop and thermal hydraulic performance evaluation criteria(PEC). Manuscript profile
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  4 - Thermal and hydraulic analysis of a novel p double fluid parabolic through solar collector equipped with corrugated tube and insulator roof
  mojtaba jamiati
  The present study investigates a double-fluid volumetric based parabolic trough solar receiver. The control volume approach is used to solve the system of classical single phase governing equations by using the finite volume method. The standard k–ε turbul More

  The present study investigates a double-fluid volumetric based parabolic trough solar receiver. The control volume approach is used to solve the system of classical single phase governing equations by using the finite volume method. The standard k–ε turbulence model with enhanced wall function is selected. According to obtained results, the value of efficiency of Conventional-Parabolic-Through-Solar-Collectors (CPTSCs) and Novel-Parabolic-Through-Solar-Collectors (NPTSCs) reduces by increasing of inlet temperature of base fluid and therefore, there is an optimum inlet temperature for all configurations and it is equal to 40°C. Manuscript profile
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  5 - Thermoeconomic Analysis of a Steam Rankine Cycle ‎Integrated with Parabolic Trough Solar Collectors
  Seyyed Masoud Seyyedi
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