What is the metal sheet absorber surrounded with in an evacuated flat plate collector?
A. Low volume inside flat envelope
B. Low vacuum inside curved envelope
C. High vacuum inside flat envelope
D. Low vacuum inside thick curved envelope
Answer:C
What is the metal sheet absorber surrounded with in an evacuated flat plate collector?
A. Low volume inside flat envelope B. Low vacuum inside curved envelope C. High vacuum inside flat envelope D. Low vacuum inside thick curved envelope
Explanation: In an evacuated flat-plate solar collector, the metal sheet absorber is surrounded with a high vacuum. This is then placed inside a flat envelope made of glass and metal.