Engineering, 03.06.2021 14:00 MoltenSansriel1933

On a cold (−10◦C) winter day, a heat pump provides 20 kW to heat a house maintained at 20◦C and it has a COPHP of 4. How much power does the heat pump require? The next day, a storm brings the outside temperature to −15◦C, with the same COP and the same house heat transfer coefficient for the heat loss to the outside air. How much power does the heat pump require then?

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, leomessifanboy678

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Answers: 2

continue

Engineering, 04.07.2019 18:10, Tyrant4life

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Answers: 1

continue

Engineering, 04.07.2019 18:10, jesuslovesusall3

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Answers: 2

continue

Engineering, 04.07.2019 19:10, kayleeemerson77

Analyze the factors that influence the choice between the following pairs of processes to make the products indicated: i) sand casting versus die casting of an electric-motor housing ii) thread rolling versus machining of a bolt for high-strength application. (co3/c5)

Answers: 3

continue

You know the right answer?

On a cold (−10◦C) winter day, a heat pump provides 20 kW to heat a house maintained at 20◦C and it h...