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  • ENERGY PRODUCTION AND CONVERSION  (26)
  • SOLAR PHYSICS  (13)
  • ENVIRONMENT POLLUTION
  • 2005-2009
  • 1975-1979  (47)
  • 1
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    Determination of the structure and heating mechanisms of coronal loops from soft X-ray observations with the solar probe (1978)
    In:  CASI
    Details
    Publication Date: 2006-01-16
    Description: High resolution soft X-ray imaging from the solar probe is justified in terms of the expected scientific returns which include the determination of the temperature and density structure of a coronal loop. The advantages of the grazing incidence telescope over the multiple pinhole camera are discussed. An instrument package is described which includes a grazing incidence mirror, a thermal prefilter, a three position filter wheel and a focal plane detector baselined as an 800 by 800 back-illuminated charge coupled device. The structural assembly together with the data processing equipment would draw heavily on the designs being developed for the Solar Polar Mission.
    Keywords: SOLAR PHYSICS
    Type: JPL A Close-up of the Sun; p 94-110
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Cogeneration power systems (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Cogeneration is defined as the combination of electrical generation and process heat for more efficient use of fuel. Comparisons of energy utilization in conventional electric power plants and cogeneration electric power plants are presented. Characteristics of various cogeneration systems are also presented. Systems are analyzed for use in utility systems and industrial systems. Economic and cost analysis are reviewed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Proc. of the Alternate Energy Systems Seminar; p 68-96
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    NASA TECHNICAL REPORTS
  • 3
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    Integrated steam systems for electric power generation from waste heat (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA. Washington Proc. of Conf. on Waste Heat Management and Util., Vol. 3; 15 p
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    NASA TECHNICAL REPORTS
  • 4
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    Solar-assisted gas-energy water-heating feasibility for apartments (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Studies of residential energy use, solar-energy technology for buildings, and the requirements for implementing technology in the housing industry led to a project to develop a solar water heater for apartments. A design study for a specific apartment was used to establish a solar water-heater cost model which is based on plumbing contractor bids and manufacturer estimates. The cost model was used to size the system to minimize the annualized cost of hot water. The annualized cost of solar-assisted gas-energy water heating is found to be less expensive than electric water heating but more expensive than gas water heating. The feasibility of a natural gas utility supplying the auxiliary fuel is evaluated. It is estimated that gas-utilizing companies will find it profitable to offer solar water heating as part of a total energy service option or on a lease basis when the price of new base-load supplies of natural gas reaches $2.50-$3.00 per million Btu.
    Keywords: ENERGY PRODUCTION AND CONVERSION
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  • 5
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    Social aspects of regulating waste heat (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA, Washington Proc. of the Conf. on Waste Heat Management and Util., Volume 1; 17 p
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  • 6
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    A study of the chemical degradation of ClONO2 in the stratosphere (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The flash photolysis-resonance fluorescence system described by Davis et al. (1974) is used to measure the rate constants for the reactions of chlorine nitrate (ClONO2) with stratospheric O(3-P) and OH. Both reactions are examined in a pyrex cell with an internal volume of about 150 cu cm, where the reaction mixture was maintained at 245 K by circulating methanol from a thermostated circulation bath through the outer jacket of the reaction cell. The relative chemical degradation rates as a function of altitude for both reactions are tabulated, which shows that the chemical degradation pathways contribute less than 10% to the total rate of ClONO2 destruction at altitudes less than 30 km. Since the concentration of ClONO2 is calculated to be near its maximum around 25 km and drops off very significantly at higher altitudes, it is concluded that the photochemical decomposition of ClONO2 in the stratosphere is by far the most important degradation path for this molecule.
    Keywords: ENVIRONMENT POLLUTION
    Type: Geophysical Research Letters; 4; Jan. 197
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  • 7
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    Boundary layer measurements of the OH radical in the vicinity of an isolated power plant plume - SO2 and NO2 chemical conversion times (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Direct measurements of the OH radical in the vicinity of an isolated power plant plume are reported. These measurements were used to estimate the conversion time of SO2 to H2SO4-sulfate aerosol via the initiating step OH + SO2 + M yields HSO3. Using the near-high-noon measured value of OH (9.5 million per cu cm), resulted in a 1/e conversion time of 1.4 days. The latter lifetime would correspond to a conversion rate of about 2%/hr. When the lifetime calculation was modified to take into consideration the OH diurnal cycle, the 1/e conversion time for SO2 was found to be 4.4 days, giving an apparent overall rate of conversion of about 0.7%/hr. Similar calculations carried out for the conversion of NO2 to NHO3 resulted in 1/e lifetimes for NO2 of 2-3 h for midday time periods.
    Keywords: ENVIRONMENT POLLUTION
    Type: Atmospheric Environment; 13; 8, 19; 1979
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  • 8
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    Dielectronic recombination rates, ionization equilibrium, and radiative energy-loss rates for neon, magnesium, and sulfur ions in low-density plasmas (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Results of detailed and systematic calculations are presented for the total dielectronic recombination rate coefficients for the ions of Ne, Mg, and S in a low-density predominantly hydrogen plasma. The new recombination rates are used to calculate solar corona ionization-equilibrium distributions of the ions. The most important effect of dielectronic recombination for ions in corona equilibrium is found to be a shift in the maximum-abundance temperatures toward higher temperatures, which are in some cases reduced from those predicted on the basis of the simple Burgess formula.
    Keywords: SOLAR PHYSICS
    Type: Astrophysical Journal; vol. 230
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  • 9
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    Low cost silicon solar arrays (1975)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The economic production of silicon solar cell arrays circumvents p-n junction degradation by nuclear doping, in which the Si-30 transmutes to P-31 after thermal neutron capture. Also considered are chemical purity specifications for improved silicon bulk states, surface induced states, and surface states.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Proc. of the 1st ERDA Semiann. Solar Photovoltaic Conversion Program Conf.; p 56-103
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Building application of solar energy. Study no. 4: Scenarios for the utilization of solar energy in southern California buildings, change 1 (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Plausible future market scenarios for solar heating and cooling systems into buildings in the area served by the Southern California Edison Company. A range of plausible estimates for the number of solar systems which might be installed and the electrical energy which might be displaced by energy from these systems are provided. The effect on peak electrical load was not explicitly calculated but preliminary conclusions concerning peak load can be inferred from the estimates presented. Two markets are investigated: the single family market and the large power commercial market.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-155326 , JPL-5040-10
    Format: application/pdf
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