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  • ENERGY PRODUCTION AND CONVERSION  (4)
  • 1
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    Parametric study of thermal storage containing rocks or fluid filled cans for solar heating and cooling, phase 2 (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The test data and an analysis of the heat transfer characteristics of a solar thermal energy storage bed utilizing water filled cans and standard bricks as energy storage medium are presented. This experimental investigation was initiated to find a usable heat intensive solar thermal storage device other than rock storage and water tank. Four different sizes of soup cans were stacked in a chamber in three different arrangements-vertical, horizontal, and random. Air is used as transfer medium for charging and discharge modes at three different mass flow rates and inlet air temperature respectively. These results are analyzed and compared, which show that a vertical stacking and medium size cans with Length/Diameter (L/D) ratio close to one have better average characteristics of heat transfer and pressure drop.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-161841
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    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
  • 3
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    Advanced solar thermal storage medium test data and analysis (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A comparative study has been made of experimentally obtained heat transfer and heat storage characteristics of a solar thermal energy storage bed utilizing containerized water or phase change material (PCM) and rock or brick. It is shown that (1) containers with an L/D ratio of 0.80 and a mass/surface area ratio of 2.74 in a random stacking arrangement have the optimum heat transfer characteristics; and (2) vertical stacking has the least pressure drop across the test bed. It is also found that standard bricks with appropriate holes make an excellent storage medium.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Miami International Conference on Alternative energy sources; Dec 10, 1979 - Dec 13, 1979; Miami Beach, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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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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