Showing papers on "Photovoltaic thermal hybrid solar collector published in 1972"
TL;DR: In this paper, a revised curve of the absorption of the solar spectrum in water is given, and a method of quantitatively assessing the effect of these salt layers, taking into account the band absorption characteristics of water is presented.
126 citations
01 Jan 1972
TL;DR: In this article, a simplified mathematical model suggests that the distillate depends only on the initial brine temperature, the drop in brines temperature, and the brine depth.
Abstract: Abstract The production capacity of a solar still which converts saline water to fresh water can be increased by introducing hot feed water into the unit at night. A waste heat source, such as cooling water from a power plant, can be used to preheat the feed. The nocturnal production, i.e. the distilled water produced at night, seems to be influenced by several parameters. However, a simplified mathematical model suggests that the distillate depends only on the initial brine temperature, the drop in brine temperature and the brine depth. This was experimentally verified for different brine depths and for initial brine temperatures up to 150°F.
54 citations
01 Jan 1972
TL;DR: In this paper, the authors summarize the present status of measurements of heat flux in the solar wind and provide a comparison of these measurements with the theory for collision-dominated heat transport in a fully ionized medium developed by Spitzer and Harm [1953].
Abstract: This paper is intended to summarize the present status of measurements of heat flux in the solar wind and to provide a comparison of these measurements with the theory for collision-dominated heat transport in a fully ionized medium developed by Spitzer and Harm [1953]. A short discussion of some recent models is included to illustrate the role of thermal conduction in the expansion. In addition, a brief description of the steady state solar wind is included in order to provide an observational background for this conference.
36 citations
Patent•
05 Jun 1972
TL;DR: In this paper, complete solar cells are deposited in a carrier substrate by processes geared to large scale production at high production rates not obtainable from the present state-of-the-art.
Abstract: This invention relates to a method for economically and rapidly producing solar cells, made of either silicon or of germanium. Complete solar cells are deposited in a carrier substrate by processes geared to large scale production at high production rates not obtainable from the present state of art.
31 citations
14 citations
11 citations
15 Oct 1972
TL;DR: In this article, three major options for wide-scale generation of photovoltaic energy for terrestrial use are considered: (1) rooftop array, (2) solar farm, and (3) satellite station.
Abstract: Three major options for wide-scale generation of photovoltaic energy for terrestrial use are considered: (1) rooftop array, (2) solar farm, and (3) satellite station. The rooftop array would use solar cell arrays on the roofs of residential or commercial buildings; the solar farm would consist of large ground-based arrays, probably in arid areas with high insolation; and the satellite station would consist of an orbiting solar array, many square kilometers in area. The technology advancement requirements necessary for each option are discussed, including cost reduction of solar cells and arrays, weight reduction, resistance to environmental factors, reliability, and fabrication capability, including the availability of raw materials. The majority of the technology advancement requirements are applicable to all three options, making possible a flexible basic approach regardless of the options that may eventually be chosen. No conclusions are drawn as to which option is most advantageous, since the feasibility of each option depends on the success achieved in the technology advancement requirements specified.
9 citations
TL;DR: In this article, the feasibility of large-scale terrestrial plants for future generation of pollution free electrical power from solar energy was investigated. But the authors did not consider the environmental impact of solar energy.
Abstract: Feasibility of large-scale terrestrial plants for future generation of pollution free electrical power from solar energy
15 Jun 1972
TL;DR: In this paper, various factors involved in the development of solar photovoltaic power systems for terrestrial application are discussed, and the discussion covers the tradeoffs, compromises, and optimization studies which must be performed in order to develop a viable terrestrial solar array system.
Abstract: The various factors involved in the development of solar photovoltaic power systems for terrestrial application are discussed. The discussion covers the tradeoffs, compromises, and optimization studies which must be performed in order to develop a viable terrestrial solar array system. It is concluded that the technology now exists for the fabrication of terrestrial solar arrays but that the economics are prohibitive. Various approaches to cost reduction are presented, and the general requirements for materials and processes to be used are delineated.
TL;DR: In this paper, a solar cell test vehicle for education and research applications is described, which uses the sun's energy source to simulate space conditions when desired, and also to provide a known angle of incidence when testing cells for either terrestrial or space applications.