Acylinder and piston with constant mixing pressure that has a volume of 3 m3 initially contains air at 90 ° c and 4.4 bar, with a relative humidity of 60%. the contents of the tank is cooled to 70 ° c. determine: 1. does condensation occur in the process? at what temperature would condensation begin? justify the answer. draw the process that the water undergoes in diagram t-v. 2. relative humidity (%), absolute humidity (kg_v / kg_as) and volume (m3) in the final state. 3. amount of water that has condensed (kg_w) (considers that the water that condenses is saturated liquid at the final temperature).4. work contributed during the process (kj) and compare how much greater or lesser is the heat transferred to the environment with respect to section a (%).

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

Acommercial grade cubical freezer, 4 m on a side, has a composite wall consisting of an exterior sheet of 5.0-mm thick plain carbon steel (kst= 60.5 w/m k), an intermediate layer of 100-mm thick polyurethane insulation (kins 0.02 w/m k), and an inner sheet of 5.0- mm thick aluminium alloy (kal polyurethane insulation and both metallic sheets are each characterized by a thermal contact resistance of r 2.5 x 104 m2 k/w. (a) what is the steady-state cooling load that must be maintained by the refrigerator under conditions for which the outer and inner surface temperatures are 25°c and -5°c, respectively? (b) for power saving purpose, which wall material should be increased/reduced in. thickness in order to reduce 50% of the cooling load found in part (a)? redesign the thickness of the proposed material. 177 w/m-k). adhesive interfaces between the q=575.93 w

A5 kg block of fe is dropped into a very large vat of water. the fe and water initial temperatures are 95 and 25 c, respectively. the fe final temperature is 25 c and the water can be treated as a thermal reservoir,. treated as a thermal reservoir take the water to be the system and determine the entropy generation. report vour answer in kj/k.