subject
Engineering, 23.11.2019 05:31 PrincesssOfficial

Apower cycle operating at steady state receives energy by heat transfer at a rate q_h at t_h = 1800 k and rejects energy by heat transfer to a cold reservoir at a rate q_c at t_c = 600 k. for each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible.
a. q._h = 500 kw, q._c = 100 kw
b. q._h = 500 kw, w._cycle = 250 kw, q._c = 200 kw
c. w_cycle = 350 kw, q._c = 150 kw
d. q._h = 500 kw, q._c = 200 kw

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
question
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
question
Engineering, 05.07.2019 10:10
What is the correct way to measure the overall length of a boat? measure from the tip of the bow to the highest point on the gunwale. measure from the tip of the bow in a straight line to the stern of the boat. measure from the tip of the bow in a straight line to the back seat. measure from port to starboard at the boat's widest point.
Answers: 1
question
Engineering, 06.07.2019 03:10
Steel balls 12 mm in diameter are annealed by heating to 1150 k and then slowly cooled to 400 k in an air att 325 k and h -20 w/m2 k. assume the properties of the steel to be k- 40 w/m k,p 7800 kg/m3, and cp 600 j/kg k. a. determine whether lumped system method can be used to analyze this problem and if so why" b. determine the time required for the cooling process. c. determine the total amount of heat lost from each ball to the ambient air
Answers: 1
You know the right answer?
Apower cycle operating at steady state receives energy by heat transfer at a rate q_h at t_h = 1800...
Questions
question
Chemistry, 03.02.2021 22:10
question
Mathematics, 03.02.2021 22:10
question
Mathematics, 03.02.2021 22:10
question
English, 03.02.2021 22:10
question
Mathematics, 03.02.2021 22:10
question
Mathematics, 03.02.2021 22:10
Questions on the website: 13722367