2.A solar collector with an arca of 1.5 m2 is installed on the rooftop of a house. Assume that the radiative encrgy amiving from the sun is 1000 Wm. The collector reflees 10% of the energy arriving on is surfice. Also, the collector is not perfectly insulated, and losses eccur The coliector kas a heat transfer coefficient h of 2 WmK The side arcas of the collector are assumed to be negligible. The ambient temperature is 20 °C and the collector is assumed to be at a temperature of 50 C. Consider that this temperature is constant throughout the whole collector The collector is assumod to behave like a black body. a) What is the power output of the collecter? b) What percentage of the total losses is caused by radiation?

2.A solar collector with an arca of 1.5 m2 is installed on the rooftop of a house. Assume that the radiative encrgy amiving from the sun is 1000 Wm. The collector reflees 10% of the energy arriving on is surfice. Also, the collector is not perfectly insulated, and losses eccur The coliector kas a heat transfer coefficient h of 2 WmK The side arcas of the collector are assumed to be negligible. The ambient temperature is 20 °C and the collector is assumed to be at a temperature of 50 C. Consider that this temperature is constant throughout the whole collector The collector is assumod to behave like a black body. a) What is the power output of the collecter? b) What percentage of the total losses is caused by radiation?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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