The Experts below are selected from a list of 1383 Experts worldwide ranked by ideXlab platform

Raghvendra Singh - One of the best experts on this subject based on the ideXlab platform.

  • thermal and electrical performance evaluation of photo voltaic thermal compound parabolic concentrator integrated fixed dome biogas plant
    Renewable Energy, 2020
    Co-Authors: A. K. Singh, Raghvendra Singh
    Abstract:

    Abstract Based on energy balance equation for photo-voltaic thermal compound parabolic concentrator (PVT-CPC) integrated bio-gas plant, an analytical expression for slurry, absorber plate and solar cell temperature has been derived in terms of design and climatic parameters. Effect of number of PVT-CPC Collectors, packing factor, mass flow rate, etc. on optimum slurry temperature for Indian climatic condition has been studied. Further, the thermal and electrical analysis of proposed system has also been carried out. Based on numerical computation for cold climatic condition of Srinagar, India, and for given mass flow rate in Collector Loop, the slurry temperature increases significantly with increasing in number of Collectors as expected. Packing factor of photo-voltaic thermal (PVT) system plays an important role in optimization of thermal and electrical power output for efficient operation of biogas plant.

  • thermal and electrical performance evaluation of photo voltaic thermal compound parabolic concentrator integrated fixed dome biogas plant
    Renewable Energy, 2020
    Co-Authors: A. K. Singh, Raghvendra Singh, G N Tiwari
    Abstract:

    Abstract Based on energy balance equation for photo-voltaic thermal compound parabolic concentrator (PVT-CPC) integrated bio-gas plant, an analytical expression for slurry, absorber plate and solar cell temperature has been derived in terms of design and climatic parameters. Effect of number of PVT-CPC Collectors, packing factor, mass flow rate, etc. on optimum slurry temperature for Indian climatic condition has been studied. Further, the thermal and electrical analysis of proposed system has also been carried out. Based on numerical computation for cold climatic condition of Srinagar, India, and for given mass flow rate in Collector Loop, the slurry temperature increases significantly with increasing in number of Collectors as expected. Packing factor of photo-voltaic thermal (PVT) system plays an important role in optimization of thermal and electrical power output for efficient operation of biogas plant.

A. K. Singh - One of the best experts on this subject based on the ideXlab platform.

  • thermal and electrical performance evaluation of photo voltaic thermal compound parabolic concentrator integrated fixed dome biogas plant
    Renewable Energy, 2020
    Co-Authors: A. K. Singh, Raghvendra Singh
    Abstract:

    Abstract Based on energy balance equation for photo-voltaic thermal compound parabolic concentrator (PVT-CPC) integrated bio-gas plant, an analytical expression for slurry, absorber plate and solar cell temperature has been derived in terms of design and climatic parameters. Effect of number of PVT-CPC Collectors, packing factor, mass flow rate, etc. on optimum slurry temperature for Indian climatic condition has been studied. Further, the thermal and electrical analysis of proposed system has also been carried out. Based on numerical computation for cold climatic condition of Srinagar, India, and for given mass flow rate in Collector Loop, the slurry temperature increases significantly with increasing in number of Collectors as expected. Packing factor of photo-voltaic thermal (PVT) system plays an important role in optimization of thermal and electrical power output for efficient operation of biogas plant.

  • thermal and electrical performance evaluation of photo voltaic thermal compound parabolic concentrator integrated fixed dome biogas plant
    Renewable Energy, 2020
    Co-Authors: A. K. Singh, Raghvendra Singh, G N Tiwari
    Abstract:

    Abstract Based on energy balance equation for photo-voltaic thermal compound parabolic concentrator (PVT-CPC) integrated bio-gas plant, an analytical expression for slurry, absorber plate and solar cell temperature has been derived in terms of design and climatic parameters. Effect of number of PVT-CPC Collectors, packing factor, mass flow rate, etc. on optimum slurry temperature for Indian climatic condition has been studied. Further, the thermal and electrical analysis of proposed system has also been carried out. Based on numerical computation for cold climatic condition of Srinagar, India, and for given mass flow rate in Collector Loop, the slurry temperature increases significantly with increasing in number of Collectors as expected. Packing factor of photo-voltaic thermal (PVT) system plays an important role in optimization of thermal and electrical power output for efficient operation of biogas plant.

G N Tiwari - One of the best experts on this subject based on the ideXlab platform.

  • thermal and electrical performance evaluation of photo voltaic thermal compound parabolic concentrator integrated fixed dome biogas plant
    Renewable Energy, 2020
    Co-Authors: A. K. Singh, Raghvendra Singh, G N Tiwari
    Abstract:

    Abstract Based on energy balance equation for photo-voltaic thermal compound parabolic concentrator (PVT-CPC) integrated bio-gas plant, an analytical expression for slurry, absorber plate and solar cell temperature has been derived in terms of design and climatic parameters. Effect of number of PVT-CPC Collectors, packing factor, mass flow rate, etc. on optimum slurry temperature for Indian climatic condition has been studied. Further, the thermal and electrical analysis of proposed system has also been carried out. Based on numerical computation for cold climatic condition of Srinagar, India, and for given mass flow rate in Collector Loop, the slurry temperature increases significantly with increasing in number of Collectors as expected. Packing factor of photo-voltaic thermal (PVT) system plays an important role in optimization of thermal and electrical power output for efficient operation of biogas plant.

Masud Behnia - One of the best experts on this subject based on the ideXlab platform.

  • mantle heat exchangers for horizontal tank thermosyphon solar water heaters
    Solar Energy, 1999
    Co-Authors: Gary Rosengarten, Masud Behnia
    Abstract:

    This paper describes the characteristics of horizontal mantle heat exchangers for application in thermosyphon solar water heaters. A new correlation for heat transfer in horizontal mantle heat exchangers with bottom entry and exit ports was used to predict the overall heat transfer and stratification conditions in horizontal tanks with mantle heat exchangers. The model of a mantle heat exchanger tank was combined with the thermosyphon solar Collector Loop model in TRNSYS to develop a model of a thermosyphon solar water heater with Collector Loop heat exchanger. Predictions of stratification conditions in a horizontal mantle tank are compared with transient charging tests in a laboratory test rig. Predictions of daily energy gain in solar preheaters and in systems with in-tank auxiliary boosters are compared with extensive outdoor measurements and the model is found to give reliable results for both daily and long-term performance analysis.

  • modelling of parabolic trough direct steam generation solar Collectors
    Solar Energy, 1998
    Co-Authors: S.d. Odeh, G L Morrison, Masud Behnia
    Abstract:

    Solar electric generation systems (SEGS) currently in operation are based on parabolic trough solar Collectors using synthetic oil heat transfer fluid in the Collector Loop to transfer thermal energy to a Rankine cycle turbine via a heat exchanger. To improve performance and reduce costs direct steam generation in the Collector has been proposed. In this paper the efficiency of parabolic trough Collectors is determined for operation with synthetic oil (current SEGS plants) and water (future proposal) as the working fluids. The thermal performance of a trough Collector using Syltherm 800 oil as the working fluid has been measured at Sandia National Laboratory and is used in this study to develop a model of the thermal losses from the Collector. The model is based on absorber wall temperature rather than fluid bulk temperature so it can be used to predict the performance of the Collector with any working fluid. The effects of absorber emissivity and internal working fluid convection effects are evaluated. An efficiency equation for trough Collectors is developed and used in a simulation model to evaluate the performance of direct steam generation Collectors for different radiation conditions and different absorber tube sizes. Phase change in the direct steam generation Collector is accounted for by separate analysis of the liquid, boiling and dry steam zones.

Wadim Jager - One of the best experts on this subject based on the ideXlab platform.

  • thermal and hydraulic evaluation of a linear fresnel solar Collector Loop operated with molten salt and liquid metal
    Applied Energy, 2019
    Co-Authors: Camille Bachelier, Wadim Jager
    Abstract:

    Abstract In this paper, results of a thermal-hydraulic analysis of a linear Fresnel solar Collector Loop using molten salt or liquid metals as heat transfer fluid are presented. The purpose of this study is to compare the benefits and challenges of using liquid metals (e.g. sodium) or molten salts (e.g. solar salt) as heat transfer fluid into line focusing Solar Thermal Electric plants. Similar studies have been conducted for point focussing Solar Thermal Electric plants but line focussing plants have not been thoroughly investigated yet. After reviewing and comparing the main thermo-physical properties of sodium and solar salt, results from thermal-hydraulic simulations, using the best-estimate system code TRACE from the US Nuclear Regulatory Commission, are presented for various plant operation scenarios. The results show that sodium offers several advantages over solar salt when used as heat transfer fluid, among which: wider operation temperature range, faster start-up procedures, quicker response of the control system and ultimately potentially higher energy yield, mostly thanks to its hundredfold higher thermal conductivity. These benefits may result in increased interest into this technological concept and might lead to further developments of Solar Thermal Electric plant design with reduced levelised cost of electricity generation.