Zobrazeno 1 - 10
of 29
pro vyhledávání: '"G.R. Whitfield"'
Publikováno v:
Sixteenth European Photovoltaic Solar Energy Conference ISBN: 9781315074405
Sixteenth European Photovoltaic Solar Energy Conference
Sixteenth European Photovoltaic Solar Energy Conference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de8b638a3c2c76d9287359e62101fb1c
https://doi.org/10.4324/9781315074405-100
https://doi.org/10.4324/9781315074405-100
Autor:
C.K. Weatherby, R.W. Bentley, G.R. Whitfield, Juan C. Miñano, E Alarte-Garvi, P Keuber, A.C Hunt, H.-D Mohring, F.H Klotz
Publikováno v:
Scopus-Elsevier
Spreadsheets have been used to compare some 90 possible small PV concentrator designs that might be suitable for use at remote sites. They have apertures of about 2 m2, use BP Solar LBG cells, and employ small aperture modules to reduce heat sinking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::598e4ad8e6cd48e316e3361da57d4811
https://doi.org/10.1016/s0038-092x(00)00045-1
https://doi.org/10.1016/s0038-092x(00)00045-1
Publikováno v:
Renewable Energy. 6:483-486
Small photovoltaic pumping systems are needed in many parts of the world but are at present too expensive for most users. The cost can be reduced by using optical concentrators to reduce the cost of solar electricity, and by developing more efficient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7af15de96aafb4595d369aee111fb6c9
https://doi.org/10.1016/0960-1481(95)00038-l
https://doi.org/10.1016/0960-1481(95)00038-l
Publikováno v:
Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002..
This report describes a continuing program to reduce the cost of solar electricity, by using optical concentrators to reduce the area of costly solar cells required for a given output. An earlier programme showed by spreadsheet analysis that 2 m/sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ddf01341332a3c0e445367a3b136fc1
https://doi.org/10.1109/pvsc.2002.1190865
https://doi.org/10.1109/pvsc.2002.1190865
Autor:
G.R. Whitfield, J.D. Burton
Publikováno v:
Renewable Energy. 5:342-344
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe265c9cd26e846387c9651ea0b2169f
https://doi.org/10.1016/0960-1481(94)90394-8
https://doi.org/10.1016/0960-1481(94)90394-8
Publikováno v:
The Conference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference - 1991.
The potential of high-efficiency laser buried grid cells in CZ wafers is evaluated for use in concentrators up to 20 suns insolation. The standard one-sun cell shows acceptable efficiency up to seven times concentration. Simple modifications of the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b647ae21d3c6abf48a35848b3fb15b64
https://doi.org/10.1109/pvsc.1991.169194
https://doi.org/10.1109/pvsc.1991.169194
The major part of the cost of solar photovoltaic systems, such as water pumps, is the solar cells themselves. The paper reports on the measurement at intensities up to about 10KW/m 2 of prototype commercial technology solar cells, 5cm × 5cm, that in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e0fa6ff97c4935df8fedbac069a3859
https://doi.org/10.1016/b978-0-08-037215-0.50078-x
https://doi.org/10.1016/b978-0-08-037215-0.50078-x
Autor:
G.R. Whitfield, A.R. Durrant
Publikováno v:
Electronics Letters. 32:147
Switching speed in a full bridge converter is limited by the time taken to turn off the MOSFET built-in diode. The authors describe a new technique for diverting the current away from the diode so that it never turns on, and hence never needs turning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5347f6978fa53ddfa918cd32b7cba45a
https://doi.org/10.1049/el:19960052
https://doi.org/10.1049/el:19960052
Autor:
R.W. Bentley, G.R. Whitfield
Publikováno v:
Intersol Eighty Five
Four concentrating collectors have been designed as components of small-scale manually-positioned p.v. water pumping systems. They use, respectively, reflective plastic film, strips of flat commercial mirror, Glaverbel mirrors and glass/EVA Fresnel l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbe3e2b6d76227cec80d5736d0f111c5
https://doi.org/10.1016/b978-0-08-033177-5.50319-7
https://doi.org/10.1016/b978-0-08-033177-5.50319-7
Autor:
G.R. Whitfield
Publikováno v:
Radio and Electronic Engineer. 36:335
This paper describes convenient laboratory methods of measuring the hybrid π parameters as a function of collector current. Typical results are given, and the variation of the transition frequency with collector current is discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93d826588c2d5e3e57e9277966f1817b
https://doi.org/10.1049/ree.1968.0115
https://doi.org/10.1049/ree.1968.0115