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Titolo:
PHOTOVOLTAIC CATENARY-TENT ARRAY FOR THE MARTIAN SURFACE
Autore:
CRUTCHIK M; COLOZZA AJ; APPELBAUM J;
Indirizzi:
TEL AVIV UNIV,FAC ENGN IL-69978 TEL AVIV ISRAEL NASA,LEWIS RES CTR,NATL CLEVELAND OH 44135 NASA,LEWIS RES CTR,SVERDRUP TECHNOL INC CLEVELAND OH 44135
Titolo Testata:
Journal of propulsion and power
fascicolo: 2, volume: 11, anno: 1995,
pagine: 373 - 377
SICI:
0748-4658(1995)11:2<373:PCAFTM>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
M. Crutchik et al., "PHOTOVOLTAIC CATENARY-TENT ARRAY FOR THE MARTIAN SURFACE", Journal of propulsion and power, 11(2), 1995, pp. 373-377

Abstract

To provide electrical power during an exploration mission to Mars, a deployable tent-shaped structure with a flexible photovoltaic (PV) blanket is analyzed. The array is designed with a self-deploying mechanism utilizing pressurized gas expansion. The structural design for the array uses a combination of cables, beam, and columns to support and deploy the PV blanket, Under the force of gravity a cable carrying a uniform load will take the shape of a catenary curve. A catenary-tent collector is self-shadowing, which must be taken into account in the solar radiation calculation. The shape and the area of the shadow on the array has been calculated and used in the determination of the global radiation on the array. The PV blanket shape and structure dimensions were optimized to achieve configuration that maximizes the specific power (W/kg). The optimization was performed for four types of PV blankets (Si, GaAs/Ge, GaAs CLEFT, and amorphous Si), and four types of structural materials (carbon composite, aramid fiber composite, aluminum and magnesium). The combination of carbon composite structural material and GaAs CLEFT solar cells produce the highest specific power. The study was carried out for two sites on Mars corresponding to the Viking lander locations. The designs, were also compared for summer, Hinter, and yearly operation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 15:58:22