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3. The solar constant (Gsc) measured by a scientist is reported as 1385 W/m2. Assume the total hemispherical emissivity is 0.90 on the sun's surface. Estimate the surface temperature (in absolute temperature) on sun by using the following information: Diameter of sun 1.39 x 10° km Diameter of earth = 1.28 x 10* km Thickness of atmosphere on earth 40 km Average distance between sun and earth = 1.495 x 108 km Suggested reading materials: The chapters regarding "Fundamentals of Therma and "Radiation Exchange between Black Surfaces" in any Heat Transfer textbook. Radiation"

3. The solar constant (Gsc) measured by a scientist is reported as 1385 W/m2. Assume the total hemispherical emissivity is 0.90 on the sun's surface. Estimate the surface temperature (in absolute temperature) on sun by using the following information: Diameter of sun 1.39 x 10° km Diameter of earth = 1.28 x 10* km Thickness of atmosphere on earth 40 km Average distance between sun and earth = 1.495 x 108 km Suggested reading materials: The chapters regarding "Fundamentals of Therma and "Radiation Exchange between Black Surfaces" in any Heat Transfer textbook. Radiation"

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3. The solar constant (Gsc) measured by a scientist is reported as 1385 W/m2. Assume the total hemispherical emissivity is 0.90 on the sun's surface. temperature (in absolute temperature) on sun by using the following information: Estimate the surface Diameter of sun = 1.39 x 10° km Diameter of earth = 1.28 x 10 km Thickness of atmosphere on earth=40 km %3! Average distance between sun and earth = 1.495 x 108 km Suggested reading materials: The chapters regarding "Fundamentals of Thermal Radiation" and "Radiation Exchange between Black Surfaces" in any Heat Transfer textbook.
Transcribed Image Text:3. The solar constant (Gsc) measured by a scientist is reported as 1385 W/m2. Assume the total hemispherical emissivity is 0.90 on the sun's surface. temperature (in absolute temperature) on sun by using the following information: Estimate the surface Diameter of sun = 1.39 x 10° km Diameter of earth = 1.28 x 10 km Thickness of atmosphere on earth=40 km %3! Average distance between sun and earth = 1.495 x 108 km Suggested reading materials: The chapters regarding "Fundamentals of Thermal Radiation" and "Radiation Exchange between Black Surfaces" in any Heat Transfer textbook.
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