2W04 Assignment 6 -2009 Solutions


Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ill be equal to the work consumed by the refrigerator. In reality, the work consumed by the refrigerator will always be greater than the additional work produced, resulting in a decrease in the thermal efficiency of the power plant. 5. The rate of cooling provided by a reversible refrigerator with specified reservoir temperatures is to be determined. Assumptions The refrigerator operates steadily. Analysis The COP of this reversible refrigerator is COPR, max TL 250 K = = =5 T H − T L 300 K − 250 K 300 K & QH R & Rearranging the definition of the refrigerator coefficient of performance Q L gives 250 K & & Q L = COPR, max W net,in = (5)(10 kW) = 50...
View Full Document

This note was uploaded on 01/17/2014 for the course MECH ENG 2w04 taught by Professor Cotton during the Winter '13 term at McMaster University.

Ask a homework question - tutors are online