A homeowner is trying to decide whether to heat with a furnace rated at 95% efficiency or
Question:
A homeowner is trying to decide whether to heat with a furnace rated at 95% efficiency or by an electrically powered heat pump. She lives in a town where electricity is produced by a coal-fired power plant that claims to operate with 1st law efficiency that is 55% of the Carnot limit. The heat pump’s CoP is advertised to be 40% of the Carnot limit. Take the values of T+, T−, and T from §36.3. For what range of outside temperatures T0 would the 2nd law efficiency of the furnace be greater than that of the heat pump?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Taking T 400 C and T T 40 C as in 363 from eq 3619 we find the 2nd law efficiency of ...View the full answer
Answered By
Gabriela Rosalía Castro
I have worked with very different types of students, from little kids to bussines men and women. I have thaught at universities, schools, but mostly in private sessions for specialized purpuses. Sometimes I tutored kids that needed help with their classes at school, some others were high school or college students that needed to prepare for an exam to study abroud. Currently I'm teaching bussiness English for people in bussiness positions that want to improve their skills, and preparing and ex-student to pass a standarized test to study in the UK.
1+ Reviews
10+ Question Solved
Related Book For 
Question Posted:
