What Temperature Exists Inside a Solar Collector (Effective Collection Area

question 43

Multiple Choice

What temperature exists inside a solar collector (effective collection area of 15 m²) on a bright sunny day when the outside temperature is +20°C? Assume that the collector is thermally insulated, that the Sun radiates the collector with a power per unit area of 600 W/m², and that the collector acts as a perfect blackbody.

• A)73°C
• B)81°C
• C)93°C
• D)107°C
• E)154°C

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Definitions:

Gothic

Originally a derogatory term named after the Goths, used to describe the history, culture, and art of western Europe in the 12th to 14th centuries. Typically divided into periods designated Early (1140–1194), High (1194–1300), and Late (1300–1500).

Lorenzo Ghiberti

An Italian Renaissance sculptor, famous for his work on the bronze doors of the Florence Baptistery, known as the "Gates of Paradise."

Abbot Suger

A French abbot of the 12th century known for his role in developing Gothic architecture, especially through his work on the Basilica of St. Denis.

Giorgio Vasari

An Italian painter, architect, and writer known for his biographies of Renaissance artists in "The Lives of the Most Excellent Painters, Sculptors, and Architects."