Chapter 5, Problem 5.14P

TH=S2SK OH=1050K Weycle Tc=350K @c= 700KJ A system executes a power cycle while receiving 1050 kJ by heat transfer at a temperature of 525 K and discharging 700 kJ by heat transfer at 350 K. There are no other heat transfers. Determine whether the cycle is internally reversible, irreversible, or impossible. O internally reversible impossible irreversible

A power cycle operating between two reservoirs receives energy Qu by heat transfer from a hot reservoir at TH = 2000 K and rejects energy Qc by heat transfer to a cold reservoir at Tc = 400 K. For the cases below you will be asked to determine the cycle n and whether the cycle operates Reversibly, Irreversibility, or is Impossible. Сycle Сycle Сycle Assume: п — пСarnot n пСarnot 1. The maximum thermal efficiency nCarnot for the cycle is equal to а. 0.2 b. 0.8 с. 1.0 d. none of the above. 2. If QH = 1100 kJ and the Weycle = 900 kJ then the cycle is Reversible b. Irreversible c. Impossible а. d. none of the above. 3. If QH = 1000 kJ and Qc = 200 kJ then the cycle is a. Reversible b. Irreversible c. Impossible d. none of the above. 4. If Wq a. Reversible b. Irreversible c. Impossible d. none of the above. суcle 1400 kJ and Qc= 600 kJ then the cycle is 5. If n = 50% then the cycle is a. Reversible b. Irreversible c. Impossible d. none of the above.

Hey! This is open space, remember to check your document properties and give all of your images alt text! power cycle receives QH by heat transfer from a hot reservoir at TH = 1200 K and rejects energy Qc by heat transfer to a cold reservoir at Tc = 400 K. For each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible. a. QH = 900 kJ, Wcycle = 450 kJ b. QH = 900 kJ, QC = 300 kJ c. Wcycle = 600 kJ, QC = 400 kJ d. n = 75%

Thermodynamics 1

As shown in the figure below, two reversible cycles arranged in series each produce the same net work, Weycle: The first cycle receives energy QH by heat transfer from a hot reservoir at TH = 1000°R and rejects energy Q by heat transfer to a reservoir at an intermediate temperature, T. The second cycle receives energy Q by heat transfer from the reservoir at temperature Tand rejects energy Qc by heat transfer to a reservoir at Tc = 450°R. All energy transfers are positive in the directions of the arrows. Hot reservoir at TH R1 W cycle Reservoir at T W cycle R2 Cold reservoir at Te Determine: (a) the intermediate temperature T, in °R, and the thermal efficiency for each of the two power cycles. (b) the thermal efficiency of a single reversible power cycle operating between hot and cold reservoirs at 1000°R and 450°R, respectively. Also, determine the ratio of the net work developed by the single cycle to the net work developed by each of the two cycles, Wcycle

A reversible heat pump cycle operates at steady state between hot and cold reservoirs at TH = 30°C and Tc 10°C, respectively. The rate of heat transfer at the high temperature is 10 kW. a. Determine the net power input, in kW. b. Determine the heat transfer rate from the cold reservoir at Tc, in kW. c. Determine the coefficient of performance of the cycle.

Need ASAP thank youu

pls answer all the given thanks

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy QC by heat transfer to a cold reservoir at TC. (a) If TH = 1600 K and TC = 400 K, what is the thermal efficiency?(b) If TH = 500°C, TC = 20°C, and Wcycle = 1000 kJ, what are QH and QC, each in kJ?(c) If η = 70% and TC = 40°F, what is TH, in °F?(d) If η = 40% and TH = 1027°C, what is TC, in °C?