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Monday, May 11, 2020 | History

2 edition of Preliminary thermal performance analysis of the solar Brayton heat receiver found in the catalog.

Preliminary thermal performance analysis of the solar Brayton heat receiver

Raymond K Burns

Preliminary thermal performance analysis of the solar Brayton heat receiver

by Raymond K Burns

  • 269 Want to read
  • 28 Currently reading

Published by National Aeronautics and Space Administration; [for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va] in Washington .
Written in English

    Subjects:
  • Space vehicles -- Auxiliary power supply.,
  • Heat exchangers.,
  • Solar energy.

  • Edition Notes

    Statementby Raymond K. Burns.
    SeriesNASA technical note ;, D-6268
    Classifications
    LC ClassificationsTL521 .A3525 no. 6268
    The Physical Object
    Pagination40 p.
    Number of Pages40
    ID Numbers
    Open LibraryOL5739356M
    LC Control Number70611885

    Review of High-Temperature Central Receiver Designs for Concentrating Solar Power Clifford K. Ho and Brian D. Iverson Sandia National Laboratories Concentrating Solar Technologies Department P.O. Box Albuquerque, NM , USA () , [email protected] AbstractCited by: @article{osti_, title = {Solar power tower design guide: solar thermal central receiver power systems. A source of electricity and/or process heat}, author = {Battleson, K W}, abstractNote = {The information is provided that is necessary to perform preliminary evaluations of whether a solar thermal central receiver plant is technically and economically feasible, as well as desirable.

    The performance of the Solar Tower Receiver (STR) affects significantly the efficiency of the entire solar power generation system and minimizing the heat loss of the STR plays a dominant role in increasing its performance. Unlike the other thermal losses the convective heat loss in STR has direct relation with wind conditions. In this study a Simulation tool ANSYS® FLUENT® was used to. As with the solar collector modules discussed in the previous chapters, the thermal performance of a central receiver system may be defined in terms of an overall system efficiency. It is common to define this efficiency in terms of the beam (direct) normal solar irradiance I b,n and the total surface area of all of the heliostats in the field.

    Purchase Advances in Concentrating Solar Thermal Research and Technology - 1st Edition. Print Book & E-Book. ISBN ,   Numerical analysis of solar dish modified cavity receiver with Cone, CPC and Trumpet reflectors is presented. Three-dimensional modeling is carried out to estimate the convective and radiative heat loss from the receiver for different angles of inclination and operating temperatures. Incorporating reflectors in the modified cavity receiver for second stage concentration, the natural Cited by:


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Preliminary thermal performance analysis of the solar Brayton heat receiver by Raymond K Burns Download PDF EPUB FB2

A thermal performance analysis was performed on the solar Brayton heat receiver. The solar heat receiver, a combination heat exchanger and heat storage device, is designed to transfer 40 kilowatts of heat to the working gas of a Brayton engine.

During a sunperiod of an Earth. The solar heat source consists of the parabolic collector and the solar heat receiver. When the collector axis is alined with the sun axis, approximately ‘78 kilowatts of thermal energy is delivered to the receiver, of which approximately 40 kilowatts is continually transferred to the working fluid.

Preliminary thermal performance analysis of the solar Brayton heat receiver. By R. Burns. Abstract. Thermal performance analysis of solar Brayton heat receiver in transferring heat to working gas of Brayton engin Topics: AUXILIARY SYSTEMS Author: R. Burns. Topics: Solar energy., Heat exchangers., Space vehicles Publisher: Washington, National Aeronautics and Space Administration; [for sale by the Clearinghouse for Federal Scientific and Author: Raymond K.

Burns. As for the overall performance, the SPT plant proposed in this paper is better than other SPT plants based on a steam Rankine system and an S-CO 2 Brayton system with molten salt serving as heat transfer fluid (HTF) operating under the similar condition.

Its overall thermal efficiency is % and % higher than that of two other SPT plants, : Lijun Fang, Yang Li, Xue Yang, Zeliang Yang. solar receivers where the sunlight is converted into the thermal energy, before it is utilised to generate electricity via different types of turbines [4, 5].

The receiver is a crucial component in CSP which affects the total performance of the system. Thermal analysis of a heat pipe solar central receiver for concentrated solar power tower.

A novel heat pipe solar central receiver for a molten salt solar power tower is presented. The basic element consists of a reflector, heat pipe, and receiver tube. of the designed solar receiver has been conducted using numerical tools from the ANSYS FLUENT package. Concerning receiver performance, an overall thermal efficiency of % is attained and an output air temperature of K can be achieved, according to.

This paper evaluates cost and performance tradeoffs of alternative supercritical carbon dioxide (s-CO 2) closed-loop Brayton cycle configurations with a concentrated solar heat ative s-CO 2 power cycle configurations include simple, recompression, cascaded, and partial cooling cycles.

Results show that the simple closed-loop Brayton cycle yielded the lowest Cited by: In such a situation, the solar receiver gains solar energy (when it is available), as well as heat gains from the surroundings (because of the temperature difference).

Thermal efficiency of the photothermal conversion depends directly on the ambient conditions. A coupled optical and thermal-fluid modeling effort for a tubular receiver is undertaken to evaluate the direct tubular s-CO 2 receiver’s thermal performance when exposed to a concentrated solar power input of ~– MW.

Ray tracing, using SolTrace, is performed to determine the heat flux profiles on the receiver and computational fluid dynamics (CFD) determines the thermal performance of the receiver.

Request PDF | Recuperated solar-dish Brayton cycle using turbocharger and short-term thermal storage | A recuperated solar-dish Brayton cycle with an off-the-shelf turbocharger as micro-turbine is.

A detailed study of the thermal performance of the designed solar receiver has been conducted using numerical tools from the ANSYS FLUENT package. Concerning receiver performance, an overall thermal efficiency of % is attained and an output air temperature of K can be achieved, according to the numerical results.

Nomenclature A a absorber area (m 2) A c total collector aperture area (m 2) A f collector geometric factor A r receiver area (m 2) b bond width (m) b 0 incidence angle modifier constant b 1 incidence angle modifier constant c p specific heat at constant pressure (J/kg K) c 0 intercept efficiency ½¼ F Rta c 1 first-order coefficient of the collector efficiency (W/m2 8C) c 2 second.

In most of the thermal cycles such as the Stirling, Rankine and Brayton cycles, the heat transfer fluid moves to the thermal receiver in order to obtain the required thermal energy for driving them. Compared to other types of cycles CSP with the Brayton Cycle (BC) has the ability to produce higher efficiency at lower cost and lower pressure drops [2] and [3].Cited by:   This paper describes the numerical evaluation of a tubular receiver used in a dish Brayton cycle.

In previous work considering the use of Computational Fluid Dynamics (CFD) to perform the calculation of the absorbed radiation from the parabolic dish into the cavity as well as the resulting conjugate heat transfer, it was shown that an axi-symmetric model of the dish and receiver absorbing Cited by: 5.

Downloadable (with restrictions). Many studies have been published on the performance and optimisation of the Brayton cycle and solar thermal Brayton cycle showing the potential, merits and challenges of this technology. Solar thermal Brayton systems have potential to be used as power plants in many sun-drenched countries.

It can be very competitive in terms of efficiency, cost and. Preliminary performance analysis of a transverse flow spectrally selective two-slab packed bed volumetric receiver. A new volumetric receiver concept has been investigated, based on an adaptation of the spectrally selective, two-slab packed bed volumetric receiver concept Cited by: 2.

Downloadable (with restrictions). The small-scale open and direct solar thermal Brayton cycle with recuperator has several advantages, including low cost, low operation and maintenance costs and it is highly recommended. The main disadvantages of this cycle are the pressure losses in the recuperator and receiver, turbomachine efficiencies and recuperator effectiveness, which limit the net.

using molten solar salt, as the heat transfer fluid (HTF) passing through the receiver tubes. Boundary Conditions Receiver Definitions A flat receiver is assumed for the reference case, to suit a polar heliostat field layout.

The reference flat receiver is constructed from tubes arranged vertically to form a 10 m high (H) byFile Size: 1MB. Solar thermal combi-systems use solar energy to provide thermal energy for space heating and domestic hot water. These systems come in many different designs and configurations, and their performance is dependent on many different factors such as location, solar collector type and orientation, and thermal storage size.Thermal evaluation of advanced solar dynamic heat receiver performance (OCoLC) Microfiche version: Crane, Roger A.

Thermal evaluation of advanced solar dynamic heat receiver performance (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource. Deng Y, Zhao Y, Quan Z, Zhu T () Experimental study of the thermal performance for the novel flat plate solar water heater with micro heat pipe array absorber.

Energy Procedia – International Conference on Solar Heating and Author: Bandi Sai Mukesh, Ravi Teja Parella, Sudipto Mukhopadhyay, Laltu Chandra.