Results 81 to 90 of about 320,111 (208)
Analysis of the operation and performance of a solar cooling system [PDF]
, 2018 In recent years, renewable sources of energy have been increasingly sought after to shift the consumption of energy from conventional sources to clean energy sources. A myriad of applications exist to exploit solar, wind, geothermal and any other means
Engineering Sustainability & Sustainable Energy 2018 (ESSE ’18) Conference +2 more
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Unconventional Resources-Solar photovoltaic (PV) systems are increasingly employed as a sustainable energy source. However, their efficiency is significantly affected by high operating temperatures, especially in regions like Kirkuk, Iraq, with high solar irradiance and ambient
Yaareb Elias Ahmed +5 more
doaj +1 more source
Solar residential heating and cooling system development test program [PDF]
A solar heating and cooling system is described, which was installed in a simulated home at Marshall Space Flight Center. Performance data are provided for the checkout and initial operational phase for key subsystems and for the total system.
Humphries, W. R., Melton, D. E.
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Experimental validation of an optical and thermal model of a Linear Fresnel Collector [PDF]
, 2013 2nd European Conference on Polygeneration – 30th March 1st April, 2011– Tarragona, SpainThis paper describes the design and validation of a mathematical model for a solar Fresnel collector. The function of the model is to simulate the optical and thermal
Caro, R. +3 more
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Design, evaluation and recommedation effort relating to the modification of a residential 3-ton absorption cycle cooling unit for operation with solar energy [PDF]
The possible use of solar energy powered absorption units to provide cooling and heating of residential buildings is studied. Both, the ammonia-water and the water-lithium bromide cycles, are considered. It is shown that the air cooled ammonia water unit
Anderson, P. P., Merrick, R. H.
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Primordial Star Formation under Far-ultraviolet radiation
, 2000 Thermal and chemical evolution of primordial gas clouds irradiated with far-ultraviolet (FUV; < 13.6 eV) radiation is investigated. In clouds irradiated by intense FUV radiation, sufficient hydrogen molecules to be important for cooling are never formed.
Black J. H. +12 more
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Results in EngineeringConsidering the substantial increase in deployment, photovoltaics are hovering to emerge as the predominant worldwide energy producer in the foreseeable future.
Aamir Sohail +5 more
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Solar collector performance evaluated outdoors at NASA-Lewis Research Center [PDF]
An outdoor facility constructed to evaluate solar collector performance for conditions that would be encountered by collectors if they were incorporated in a solar heating/cooling system is described.
Vernon, R. W.
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Solar heating and cooling systems design and development [PDF]
The development and delivery of eight prototype solar heating and cooling systems for installation and operational test are outlined for single-family residences, and commercial ...
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Measuring Feedback in Damped Lyman Alpha Systems
, 2001 We measure feedback (heating rates) in damped Lyman alpha systems from the cooling rate of the neutral gas. Since cooling occurs through [C II] 158 micron emission, we infer cooling from C II^{*} 1335.7 absorption lines detected with HIRES on the Keck I ...
Wolfe, Arthur M.
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