Which of the following pumps is used in an evacuated-tube solar collector?
A. Non-evaporable getter
B. Flash getter pump
C. Heat pump
D. Water pump
Answer:B
Which of the following pumps is used in an evacuated-tube solar collector?
A. Non-evaporable getter B. Flash getter pump C. Heat pump D. Water pump
Explanation: Evacuated flat-plate solar collectors use a barium flash getter pump. This pump is used to keep the internal pressure stable throughout the operation. They do not use non-evaporable getter pumps.