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  • Other Sources  (3)
  • 1975-1979  (3)
  • 1950-1954
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  • 1
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    Unknown
    Parametric study of rock pile thermal storage for solar heating and cooling phase 1 (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The test data and an analysis were presented, of heat transfer characteristics of a solar thermal energy storage bed utilizing water filled cans as the energy storage medium. An attempt was made to optimize can size, can arrangement, and bed flow rates by experimental and analytical means. Liquid filled cans, as storage media, utilize benefits of both solids like rocks, and liquids like water. It was found that this combination of solid and liquid media shows unique heat transfer and heat content characteristics and is well suited for use with solar air systems for space and hot water heating. An extensive parametric study was made of heat transfer characteristics of rocks, of other solids, and of solid containers filled with liquids.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-155336
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Rocket engine thrust chamber wall temperature distribution calculation and analysis (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: An analytical computational concept is presented which predicts the temperature profiles along a regeneratively cooled thrust chamber wall on the hot gas side and on the coolant side, and also the coolant bulk temperature profile. The computational model is based upon a coupling of the boundary layer heat transfer process with the heat transfer process through the chamber wall and the coolant flow heat absorption. The calculation is started with approximate temperature distributions for the hot gas side wall and the coolant flow. The iteration process of the computer program is terminated when the total heat transfer rates from the hot gas boundary layer to the wall and from the wall to the coolant are equal. The computer program for the integration of regenerative cooling process to a thrust chamber is kept general such that this program can be used with any boundary layer analysis computer program for temperature profile and heat transfer studies. A sample application of this concept is shown by using a boundary layer analysis program for the RL10 rocket engine thrust chamber.
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: NASA-CR-148288
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Solar energy storage via liquid filled cans - Test data and analysis (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the design of a solar thermal storage test facility with water-filled metal cans as heat storage medium and also presents some preliminary tests results and analysis. This combination of solid and liquid mediums shows unique heat transfer and heat contents characteristics and will be well suited for use with solar air systems for space and hot water heating. The trends of the test results acquired thus far are representative of the test bed characteristics while operating in the various modes.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Alternative energy sources; Miami International Conference; Dec 05, 1977 - Dec 07, 1977; Miami Beach, FL
    Format: text
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    NASA TECHNICAL REPORTS
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