摘要:

The different technologies of solar thermal power electricity conversion are discussed and the main power plants under construction or already in operation are listed.

ISSN:0142-5919    

DOI:10.1080/01425918208909872

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

ISSN:0142-5919    

DOI:10.1080/01425918208909873

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

A review is given of the current state of the art in Japanese domestic activities in amorphous silicon solar-cell R and D. The historical background and the present status of amorphous silicon solar-cell research in Japan are overviewed. Some new approaches and key technologies to improve solar-cell performance with new amorphous materials such as a-SiC:H, µc-Si:H, a-SiGe:H and heterojunction solar cells constructed of these materials are introduced. Progress of the conversion efficiency in various types of amorphous-silicon solar-cells is surveyed and discussed. Recent features of the industrialization of a-Si photovoltaic cells in Japan are also reviewed, and future prospects are indicated.

ISSN:0142-5919    

DOI:10.1080/01425918208909874

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

In this paper we propose a configuration of a solar, e.g., photovoltaic, power plant, which allows for additional agricultural use of the land involved, although the collectors are optimized for solar-energy conversion. If the collectors are not installed directly on the ground, but are elevated by about 2m above the ground with the periodic distance between collector rows of about three times the height of the collectors, one achieves nearly uniform radiation, (integrated over the day), on the ground of a value of about two-thirds of the global radiation without solar collectors. The mathematical relations allowing calculation of the fraction of light reaching the ground under the collector field are derived. Numerical calculations for both the direct and diffuse part of solar radiation are carried out yielding the seasonal and local dependence of this fraction. In addition, we give an outline of the various advantages offered by this configuration.

ISSN:0142-5919    

DOI:10.1080/01425918208909875

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

La méthode proposée d'estimation approachée des irradiations journaliéres du rayonnement solaire total (direct, diffus et réfléchi) d'une surface réceptrice quelconque prend en considération, comme valeurs de base, les expositions énergétiques calculées pour des conditions de ciel serein, ainsi que les relations de corrélation liant les rayonnements globaux mesurés sur une surface horizontale à ces mêmes rayonnements par ciel serein et à la fraction d'ensoleillement. The proposed method for an approximate estimation of daily sums of irradiations of total solar radiation (direct, diffuse and reflected) on any oriented and inclined surface takes into consideration, as basic values, the corresponding irradiations calculated for clear sky conditions, together with the correlation relations between the global radiation measured on an horizontal surface and the same global radiation by clear sky and the ratio of duration of sunshine.

ISSN:0142-5919    

DOI:10.1080/01425918208909876

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

ISSN:0142-5919    

DOI:10.1080/01425918208909877

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor