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  • 1
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    High-Temperature Ceramic Heat Exchanger Element for a Solar Thermal Receiver (1982)
    American Society of Mechanical Engineers
    Details
    Publication Date: 1982-11-01
    Description: A study has been completed on the development of a high-temperature ceramic heat exchanger element to be integrated into a solar receiver producing heated air. A number of conceptual designs were developed for heat exchanger elements of differing configuration. These were evaluated with respect to thermal performance, pressure drop, structural integrity, and fabricability. The final design selection identified a finned ceramic shell as the most favorable concept. The ceramic shell is surrounded by a larger metallic shell. The flanges of the two shells are sealed to provide a leak-tight pressure vessel. The ceramic shell is fabricated by an innovative combination of slip casting the receiver walls and precision casting the heat transfer finned plates. The fins are bonded to the shell during firing. Fabrication of a one-half scale demonstrator ceramic receiver has been completed.
    Print ISSN: 0199-6231
    Electronic ISSN: 1528-8986
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by American Society of Mechanical Engineers
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    PAPER CURRENT
  • 2
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    High-temperature ceramic heat exchanger element for a solar thermal receiver (1982)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: A study was performed by AiResearch Manufacturing Company, a division of The Garrett Corporation, on the development a high-temperature ceramic heat exchanger element to be integrated into a solar receiver producing heated air. A number of conceptual designs were developed for heat exchanger elements of differing configuration. These were evaluated with respect to thermal performance, pressure drop, structural integrity, and fabricability. The final design selection identified a finned ceramic shell as the most favorable concept. The shell is surrounded by a larger metallic shell. The flanges of the two shells are sealed to provide a leak-tight pressure vessel. The ceramic shell is to be fabricated by an innovative combination of slip casting the receiver walls and precision casting the heat transfer finned plates. The fins are bonded to the shell during firing. The unit is sized to produce 2150 F ar at 2.7 atm pressure, with a pressure drop of about 2 percent of the inlet pressure. This size is compatible with a solar collector providing a receiver input of 85 kw(th). Fabrication of a one-half scale demonstrator ceramic receiver has been completed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: JPL Parabolic Dish Solar Thermal Power Ann. Program Rev., Proc.; p 233-246
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Pressure containment tests in support of the nuclear Brayton cycle heat exchanger and duct assembly /HXDA/, phase 2 (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Plate-fin heat exchangers for nuclear reactor Brayton cycle
    Keywords: NUCLEAR ENGINEERING
    Type: NASA-CR-72815 , AIRESEARCH-70-7044
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Preliminary design study of nuclear Brayton cycle/Heat Exchanger and Duct Assembly /HXDA/, phase 3 Topical report (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Nuclear Brayton cycle heat exchanger and duct assembly
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-72816 , REPT-70-7045
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    High-temperature ceramic heat exchanger element for a solar thermal receiver (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A study has been completed on the development of a high-temperature ceramic heat exchanger element to be integrated into a solar reciver producing heated air. A number of conceptual designs were developed for heat exchanger elements of differing configuration. These were evaluated with respect to thermal performance, pressure drop, structural integrity, and fabricability. The final design selection identified a finned ceramic shell as the most favorable concept. The ceramic shell is surrounded by a larger metallic shell. The flanges of the two shells are sealed to provide a leak-tight pressure vessel. The ceramic shell is fabricated by an innovative combination of slip casting the receiver walls and precision casting the heat transfer finned plates. The fins are bonded to the shell during firing. Fabrication of a one-half scale demonstrator ceramic receiver has been completed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Brayton cycle heat exchanger and duct assembly (HXDA, preliminary design and technology tests (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A preliminary design of the heat exchanger and duct assembly (HXDA) for a 60 kwe, closed loop, Brayton cycle space power system is presented. This system is weight optimized within the constraints imposed by the defined structural and operational requirements. Also presented are the results of several small scale tests, directed to obtaining specific design data and/or the resolution of a design approach for long life Brayton cycle heat exchanger systems.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-121011 , AIRESEARCH-72-8622
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    A high temperature ceramic heat exchanger element for a solar thermal receiver (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The development of a high-temperature ceramic heat exchanger element to be integrated into a solar receiver producing heated air was studied. A number of conceptual designs were developed for heat exchanger elements of differing configuration. These were evaluated with respect to thermal performance, pressure drop, structural integrity, and fabricability. The final design selection identified a finned ceramic shell as the most favorable concept. The shell is surrounded by a larger metallic shell. The flanges of the two shells are sealed to provide a leak-tight pressure vessel. The ceramic shell is to be fabricated by a innovative combination of slip casting the receiver walls and precision casting the heat transfer finned plates. The fins are bonded to the shell during firing. The unit is sized to produce 2150 F air at 2.7 atm pressure, with a pressure drop of about 2 percent of the inlet pressure. This size is compatible with a solar collector providing a receiver input of 85 kw(th). Fabrication of a one-half scale demonstrator ceramic receiver was completed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-169625 , NAS 1.26:169625 , REPT-81-18452
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Brayton-cycle heat exchanger technology program (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The following five tasks designed to advance this development of heat exchanger systems for close loop Brayton cycle power systems are presented: (1) heat transfer and pressure drop data for a finned tubular heat transfer matrix. The tubes are arranged in a triangular array with copper stainless steel laminate strips helically wound on the tubes to form a disk fin geometry; (2) the development of a modularized waste heat exchanger. Means to provide verified double containment are described; (3) the design, fabrication, and test of compact plate fin heat exchangers representative of full scale Brayton cycle recuperators; (4) the analysis and design of bellows suitable for operation at 1600 F and 200 psia for 1,000 cycles and 50,000 hours creep life; and (5) screening tests used to select a low cost braze alloy with the desirable attributes of a gold base alloy. A total of 22 different alloys were investigated; the final selection was Nicrobraz 30.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-135158 , AIRESEARCH-75-12055
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Conceptual design study of nuclear Brayton cycle heat exchanger and duct assembly /HXDA/, phase 1 (1970)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Parametric data of heat exchanger size and weight for nuclear reactor Brayton cycle space power systems
    Keywords: NUCLEAR ENGINEERING
    Type: NASA-CR-72783 , AIRESEARCH-70-6691
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    An isotope heat source integrated with a 7 kW/e/ to 25 kW/e/ Brayton cycle space power supply. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The power system described is intended for applications in a manned space mission. The Isotope Reentry Vehicle (IRV) developed is considered together with the Heat Source (HS), the Heat Source Heat Exchanger and the Brayton Cycle Power Conversion Module. Other subjects discussed include the IRV/Brayton cycle spacecraft integration concept, abort and deorbit mechanization, emergency cooling methods, and crew shielding requirements. Mounting and integration for the IRV is to a large degree controlled by nuclear safety requirements. Another major factor in the installation concept is the type of emergency cooling or passive heat dump mode used in rejection of HS energy.
    Keywords: AUXILIARY SYSTEMS
    Type: Intersociety Energy Conversion Engineering Conference; Energy 70; Sep 21, 1970 - Sep 25, 1970; Las Vegas, NV
    Format: text
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    NASA TECHNICAL REPORTS
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