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Wednesday, July 29, 2020 | History

3 edition of High-temperature molten salt thermal energy storage systems for solar applications found in the catalog.

High-temperature molten salt thermal energy storage systems for solar applications

High-temperature molten salt thermal energy storage systems for solar applications

  • 199 Want to read
  • 19 Currently reading

Published by The Center in Cleveland, Ohio .
Written in English

    Subjects:
  • Fused salts.,
  • Solar energy -- United States.

  • Edition Notes

    StatementRandy J. Petri, Terry D. Claar, Estela T. Ong ; prepared for National Aeronautics and Space Administration, Lewis Research Center for U.S. Department of Energy, Office of Solar, Geothermal, Electric and Storage Systems, Division of Energy Storage Systems.
    SeriesNASA CR -- 167916., NASA contractor report -- NASA CR-167916.
    ContributionsClaar, Terry D., Ong, Estella T., Lewis Research Center., United States. Dept. of Energy. Division of Energy Storage Systems., Institute of Gas Technology.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15311139M

    It is termed molten-salt technology or molten-salt energy storage (MSES). Molten salts can be employed as a thermal energy storage method to retain thermal energy. Presently, this is a commercially used technology to store the heat collected by concentrated solar power (e.g., from a solar tower or solar trough). High-Temperature Thermal Storage Systems Using Phase Change Materials offers an overview of several high-temperature phase change material (PCM) thermal storage systems concepts, developed by several well-known global institutions with increasing interest in high temperature PCM applications such as solar cooling, waste heat and concentrated solar power (CSP).

    Existing Rankine systems typically employ a molten salt storage system. CSP installations with molten salt storage operate at about °C, which limits the choice of power block and limits the achievable thermal efficiencies to about 40%. The energy harvesting performance of current storage systems, however, is limited by the low thermal conductivity of PCMs, and the thermal conductivity enhancement of high-temperature molten salt-based PCMs is challenging and often leads to reduced energy storage by:

      Recently, more and more attention is paid on applications of molten chlorides in concentrated solar power (CSP) plants as high-temperature thermal energy storage (TES) and heat transfer fluid (HTF) materials due to their high thermal stability limits and low prices, compared to the commercial TES/HTF materials in CSP-nitrate salt mixtures. A higher Cited by:   In this paper, development of a thermocline system that uses molten-nitrate salt as the heat transfer fluid is described and compared to a two-tank molten salt system. Results of isothermal and thermal cycling tests on candidate materials and salt safety tests are presented as well as results from a small pilot-scale ( MWh) by:


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High-temperature molten salt thermal energy storage systems for solar applications Download PDF EPUB FB2

HIGH-TEMPERATURE MOLTEN SALT THERMAL ENERGY STORAGE' SYSTEMS FOR SOLAR APPLICATIONS Randy J. Petri and T. Claar Institute of Gas Technology PROGRAM SUMMARY The objective of this program is to select,' test and develop alkali and alkaline earth carbonate latent-heat storage salts, metallic containment materials, and thermal conductivity File Size: KB.

At present, the two-tank molten salt storage is the only commercially available concept for large thermal capacities being suitable for solar thermal power plants.

In the Andasol I plant, 28, tons of molten “Solar Salt” are stored in two tanks with a total volume of 32, m 3 and the temperature operation range is between and ° by: Experimental results of comparative screening studies of candidate molten-carbonate salts as phase-change materials (PCM) for advanced solar thermal energy storage applications at.

Get this from a library. High-temperature molten salt thermal energy storage systems for solar applications. [Randy J Petri; Terry D Claar; Estella T Ong; Lewis Research Center.; United States. Department of Energy. Division of Energy Storage Systems.; Institute of.

To reduce the cost of HTF, the synthetic thermal oil is retained as HTF but replaced with molten salt as a thermal energy storage material. Solar salt is made as to the standard storage medium, and. research on development of low melting point (LMP) molten salt thermal energy storage media with high thermal energy storage density for sensible heat storage systems.

The essential properties of the selected LMP molten salts for thermal storage in solar energy applications are including melting point, heat capacity, density, and thermal energy. From the entire gamut of materials researched for various properties, molten salts are a very specific group that have immense potential as thermal energy storage and heat transfer media for solar energy applications.

Molten salts have been proposed as heat transfer fluids for high temperatures from to ° by: 2. Solar Salt NaNO 3-KNO 3 Properties of Salts *Experimental determination 9 T.

Wang, D. Mantha, R. Reddy, “Thermal stability of the eutectic composition in LiNO 3–NaNO 3–KNO 3 ternary system used for thermal energy storage,” Solar Energy Materials and Solar Cells, Vol.

pp.File Size: 1MB. This chapter presented various types of thermal energy storage materials and concepts. At the time of writing, in the field of concentrated power applications (CSP), molten nitrate salts (predominantly a mixture of 60 wt % NaNO 3 and 40% KNO 3, so called “Solar Salt”) are used exclusively.

Concerning the thermal properties of these salts Cited by: applications. Some suitable examples are the cost-effective storage of molten salts in a thermocline, high-temperature latent heat storage for high power levels and thermochemical reactions that can store heat loss-free.

The evolution of the energy system has furthermore led to new possibilities for the usage of heat. Testing of Thermocline Filler Materials and Molten-Salt Heat Transfer Fluids for Thermal Energy Storage Systems in Parabolic Trough Power Plants ASME J.

Sol. Energy Cited by: Experimental results of compatibility screening studies of salt/containment/thermal conductivity enhancement (TCE) combinations for the high temperature solar thermal application range of deg to C ( to F) are presented.

Nine candidate containment/HX alloy materials and two TCE materials were tested with six candidate solar thermal. A popular storage method for high-temperature thermal applications is a molten salt tank. Fact sheets created by the German Energy Storage Association, or BVES for short, show that molten salt tanks are around 33 times less expensive than electric batteries when it comes to storing a kilowatt-hour in them.

Abstract Alkali and alkaline earth carbonate latent-heat storage salts, metallic containment materials, and thermal conductivity enhancement materials were investigated to satisfy the high temperature ( to C) thermal energy storage requirements of advanced solar-thermal power generation concepts are described.

The results of comparative screening studies of candidate molten carbonate salts as phase change materials (PCM) for advanced solar thermal energy storage applications at ° to °C (° to °F) and steam Rankine electric generation at ° to °C (° to °F) are presented.

In this work, the eutectic Na 2 CO 3 –NaCl molten salt was investigated as a new high temperature phase change material for solar thermal energy storage. The composition of the eutectic binary salt was determined with the aid of FactSage software and its thermophysical properties were investigated using a Simultaneous Thermal Analyzer (STA) and X-Ray Diffraction Cited by: The essential properties of the down-selected novel LMP molten salts to be considered for thermal storage in solar energy applications were experimentally determined, including melting point, heat capacity, thermal stability, density, viscosity, thermal conductivity, vapor pressure, and corrosion resistance of SS Cited by: 8.

The results of comparative screening studies of candidate molten carbonate salts as phase change materials (PCM) for advanced solar thermal energy storage applications at to C ( to F) and steam Rankine electric generation at to.

The molten salt is used for high temperature energy storage applications (above o C) because typical thermal fluids, such as synthetic oils, have temperature limitation and decompose beyond the maximum allowable temperature ( o C).

This is how the molten salt storage is employed in a solar thermal plant. The explicit UA program objective is to develop low melting point (LMP) molten salt thermal energy storage media with high thermal energy storage density for sensible heat storage systems.

The novel Low Melting Point (LMP) molten salts are targeted to have the following characteristics: 1. Lower melting point (MP) compared to current salts (Cited by: 8.

Today, molten salt storage is widely used in solar thermal plants in Spain. The “solar salts” are composed of 60 percent sodium nitrate (NaNO3) and 40 percent potassium nitrate (KNO3) -- Author: Eric Wesoff.industrial process heat could be furnished by solar energy if the systems used thermal storage (Edelstein ).

In the yearthe value of 1 quad (1 EJ) of energy in dollars is about $5 billion. Thus, a research investment on the order of $10 million in solar thermal energy storage to achieve about to quads per year of extra solar.NREL is a national laboratory of the U.S.

Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Contract No. DE-ACGO Advanced Thermal Storage System with Novel Molten Salt December 8, — Ap Matthieu Jonemann Halotechnics, Inc. Emeryville, California.