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3.2 A three-axis stabilized satellite has two solar arrays. Each array has an area of 5 m?. At the beginning of life each of the solar sails generate 4 kW 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 3kW 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. Calculate the efficiency of the solar cells at end of life. c. Ifone of the solar sails fails and produces no power, how much power is avail- ablo to the telecommunication system

3.2 A three-axis stabilized satellite has two solar arrays. Each array has an area of 5 m?. At the beginning of life each of the solar sails generate 4 kW 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 3kW 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. Calculate the efficiency of the solar cells at end of life. c. Ifone of the solar sails fails and produces no power, how much power is avail- ablo to the telecommunication system

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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3.2 A three-axis stabilized satellite has two solar arrays. Each array has an area of 5 m?. At the beginning of life each of the solar sails generate 4 kW 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 3kW 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/m?, and normal incidence of sunlight on the sails. b. Calculate the efficiency of the solar cells at end of life. c. If one of the solar sails fails and produces no power, how much power is avail- able to the telecommunication system.
Transcribed Image Text:3.2 A three-axis stabilized satellite has two solar arrays. Each array has an area of 5 m?. At the beginning of life each of the solar sails generate 4 kW 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 3kW 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/m?, and normal incidence of sunlight on the sails. b. Calculate the efficiency of the solar cells at end of life. c. If one of the solar sails fails and produces no power, how much power is avail- able to the telecommunication system.
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