FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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What is the COP of the Carnot refrigerator if the COP of the Carnot heat pump is 2.3 where two cycles are operation between identical reservoirs?
Please state assumptions and tables.
E Expert Q&A
Show the heat pump that operates on the
ideal vapor-compression refrigeration cycle,
with refrigerant-134a as the working fluid,
on T-s diagram as in Figure (1).
T
House
Он
1.4 MPa
Win
320 kPa
4
step: 2 of 8
For the given ideal vapor-compression
refrigeration cycle, with refrigerant-134a as
the working fluid,specific entropy, specific
enthalpy, pressure, and specific volumeat
state are $i, ", , and Virespectively.
Also, the saturated liquid state is denoted
by the subscript f, the saturated vapor is
denoted by the subscript g, and the
properties at latent stage are denoted by
the subscript fg.
th
step: 3 of 8
(a)
Use “saturated refrigerant-134a
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00
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- PLEASE SHOW COMPLETE SOLUTION (DRAW THE TS DIAGRAM)arrow_forwardSteam at 5.2 MPa, 4000C expands in a Rankine turbine to 0.036MPa. For 136 kg/s of steam, determine the work, the thermal efficiency, and the steam rate (a) fot the cycle(b) for the turbine, (c) for an actual turbine with the same specifications, the brake steam rate is 4.80 kg/kwh ang the driven electric generator has an efficiency of 93%, Find brake thermal efficiency , brake engine efficiency, combined work, and quality or temperature of exhaust steam. Don't answer the given problem, just give me the schematic diagram and T-S diagram of the given problemarrow_forwardR-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 drynessIt enters with a temperature of -12oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machineSince it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperaturearrow_forward
- Answer both questions please! Will leave a vote!arrow_forwardDraw the T-s diagram and Plant Lay-Out A steam power plant has a steam generator (boiler) exit at 4 MPa, 500°C and a condenser exit temperature of 45°C. Assume all components are ideal and find the: (A) Ideal pump work(B) Heat added in the boiler(C) Heat rejected in the condenser(D) Net cycle Work(E) Cycle thermal Efficiencyarrow_forwardR-134a as a refrigerant, in a cooling machine used; refrigerant to evaporator (evaporator) 0.15 drynessIt enters with a temperature of -12 oC and a flow rate of 0.028 kg/s and leaves the evaporator as saturated steam. cooling machineSince it works according to the reverse Carnot cycle and the compressor consumes 1.45 kW of power a) Find the efficiency coefficient of the cooling machine. b) Calculate the heat given to the outside environment c) Calculate the condenser temperaturearrow_forward
- find the specific enthalphy at each point of the cycle, the amount of heat added, heat rejected, turbine work, pump work, net work and thermal efficiency in a carnot cycle between pressure limits of 3MPa and 10KPaarrow_forward1. In a steam power plant steam enters the turbine at 6 bar and 400°C and is expanded isentropic ally to the condenser pressure of 0.1 bar. If the isentropic efficiency of the turbine is 80%, find the actual net work output and the thermal efficiency.arrow_forwardI do not understand how to fix state 3 with the given information. Without knowledge of state 3 or 4s (the 4th state if the process were actually isentropic) I don't see how it's possible to get temperature or enthalpy of state 3.arrow_forward
- i need the answer quicklyarrow_forwardA car engine burns 10 lbm of fuel (equivalent to addition of Q H ) at 2600 R andrejects energy to the radiator and the exhaust at an average temperature of1300 R. If the fuel provides 17 200 Btu/lbm what is the maximum amount ofwork the engine can provide?arrow_forwardFind the maximum thermal efficiency possible for a power cycle operatingbetween 1200 oF and 225 oF?arrow_forward
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