Aflorida spring supplies water at a temperature of 18 oc. this water mixes with a creek that delivers water at 23 oc. the combined stream has a temperature of 21.5 oc, with a combined flow rate of 1000kg/s. find the flow rate of the spring and the creek. how much entropy is being generated per second due to the heat transfer?

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.