Answers: 3
Another question on Physics
Physics, 22.06.2019 03:00
An internally reversible refrigerator has a modified coefficient of performance accounting for realistic heat transfer processes of where qin is the refrigerator cooling rate, qout is the heat rejection rate, and is the power input. show that copm can be expressed in terms of the reservoir temperatures tc and th, the cold and hot thermal resistances rt,c and rt,h, and qin, as where rtot rt,c rt,h. also, show that the power input may be expressed as 1.39 a household refrigerator operates with cold- and hot-temperature reservoirs of tc 5 c and th 25 c, respectively. when new, the cold and hot side resistances are rc,n 0.05 k/w and rh,n 0.04 k/w, respectively. over time, dust accumulates on the refrigerator’s condenser coil, which is located behind the refrigerator, increasing the hot side resistance to rh,d 0.1 k/w. it is desired to have a refrigerator cooling rate of qin 750 w. using the results of problem 1.38, determine the modified coefficient of performance and the required power input w under (a) clean and (b) dusty coil conditions. internally reversible refrigerator qout qin w high-temperature reservoir low-temperature reservoir th th,i tc,i tc high-temperature side resistance low-temperature side resistance w qin th tc qinrtot tc qinrtot copm tc qinrtot th tc
Answers: 2
Physics, 22.06.2019 10:00
Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?
Answers: 1
Physics, 22.06.2019 17:00
How much energy is supplied to each coulomb of charge that flows through a 12-v battery?
Answers: 1
Physics, 22.06.2019 17:30
Heterogeneous mixture with larger particles that never settle is
Answers: 2
You know the right answer?
When light reaches an object, it is scattered (or reflected), transmitted, absorbed, or some of thes...
Questions
History, 15.01.2021 02:10
Social Studies, 15.01.2021 02:10
Business, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
English, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
Social Studies, 15.01.2021 02:10
Mathematics, 15.01.2021 02:10
