Answered: A three-axis stabilized satellite has…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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A three-axis stabilized satellite has two solar arrays. Each array has an area of 5m². At the beginning of life each of the solar sails generate 4kW of electrical power, which falls to 3.6 kW at the end of the satellite's useful lifetime. 1 kW of power is needed for housekeeping (running the satellite systems) and 3 kW is devoted to the telecommunication system. a. Calculate the efficiency of the solar cells at beginning of life. Assume an inci- dent solar power of 1.36 kW/m2, and normal incidence of sunlight on the sails. b. Caleulate the efficiency of the solar cells at end of life. E lfone of the solar sails fails and produces no power, how much power is avail- able to the telecommunication system.

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