Referring to the reversible heat pump cycle shown in the figure, p1 = 14.7 Ibf/in?, p4 = 27.8 lbf/in?, v1 = 12.6 ft³/Ib, v4 = 8.0 ft³/lb, andthe gas is air obeying the ideal gas model.P4piTHV4VIDetermine TH, in °R, and the coefficient of performance.Step 1Determine TH, in °R.TH =°RSave for LaterAttempts: 0 of 1 usedSubmit AnswerStep 2The parts of this question must be completed in order. This part will be available when you complete the part above.

Answered: Image /qna-images/answer/dd06787c-87cd-4041-9f14-f79c8e28ec20.jpg

Answered: Referring to the reversible heat pump…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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SU-1 A heat engine with &=0.400 operates between two heat reservoirs at 250K and 450K. The energy amounts and heat flow diagram for one cycle of operation of the engine is shown to the right. a) What is the change in entropy for the engine for one cycle of operation of the engine? b) Find the change in entropy for the engine surroundings for one cycle of operation of the engine. c) Find the change in entropy for the universe for one cycle of operation of the engine. d) Is this engine real, reversible, or impossible? Explain why using your results from the previous parts. Th-450K 500 200J Engne 300J T-250K
Two separate streams of air and steam flow through a compressor system and a heat exchanger, as shown in the figure. The diagram provides steady state operating data for this system. The transfer of heat with the surroundings can be neglected, as well as the effects of kinetic and potential energy. Air can be considered an ideal gas. Decide:a) The total power generated by both compressors: kW b) The mass flow of water: kg/s
Given : STEADY STATE COMPRESSOR INLET PRESSURE: IN LET VOLUMETRIC AIR Ask: is elbf/in² FLOW RATE 5 ft³/s POLY TROPIC GOES THROUGH DIAMETER (INCHES) OF FOR EXIT PRESSURE AND EXIT VELOCITY OF PROCESS Pv¹.5 = constant EXIT PIPE 160 lbf / in 2 145ft/s.
20 g of air undergoes a closed cycle, illustrated in Figure Q2, which consists of the following 3 processes: 1-2 Constant pressure heat rejection. 2-3 Constant volume heat addition. 3-1 Isothermal expansion back to the original conditions. P (kPa) 75 1 V (m') 0.025 0.04 Figure Q2: Three process cycle Given that Rair = 287 J/kg-K, and Cy = 718 J/kg-K, and assuming ideal gas conditions throughout: (a) Determine the temperatures at points 1, 2 and 3, and the pressure at point 3. (b) Determine the work during each process, and the net work from the cycle. (c) Determine the heat transferred during each process. (d) Verify that this is a cycle.
m= 1 kg Process path (straight line) R= 0.50 2 C, = 0.5 kJ/kg K P V= 1 m3 P= 300 kPa V= 0.5 m3 P= 600 kPa An ideal gas in a piston undergoes a process from state 1 to state 2 above. d) The work to move the piston is: a) performed ON the system (Win) b) performed BY the system (Wout) e) If no other work is done on or by the system during the process, circle the term that must be non-zero (i.e. what else occurs during the process) to satisfy the Conservation of Energy Equation for a closed system having no change in KE or PE. W - W, + Qin - Qout = AU in out
Separate streams of air and water flow through the compressor and heat exchanger arrangement shown in the figure below, where im =0.8 kg/s and T6 = 30°C. Steady-state operating data are provided on the figure. Heat transfer with the surroundings can be neglected, as can all kinetic and potential energy effects. The air is modeled as an ideal gas. Air P1 = 1 bar T = 300 K P4= 9 bar T4 = 800 K4 "cvA Compressor A Compressor B P2= 3 bar +2 T2= 600 K 3+ P3= P2 T3= 450 K www -Heat exchanger T6, P6= P5 Water Ts= 20°C Ps = 1 bar Determine: (a) the total power for both compressors, in kW. (b) the mass flow rate of the water, in kg/s.

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