The figure below provides the T–s diagram of a Carnot heat pump cycle for which the...

The figure below provides the T–s diagram of a Carnot heat pump cycle for which the substance is ammonia, where x₃ = 70%.

Determine the net work input required, in kJ, for 50 cycles of operation and 0.1 kg of substance.
Note that work is positive going into the heat pump.

Expert Solution

samet mamat answered 11 months ago

4: Consider a vapor refrigeration cycle. a: Draw the T-s diagram of the reversed Carnot Cycle...

4: Consider a vapor refrigeration cycle. a: Draw the T-s diagram of the reversed Carnot Cycle and describe what kind of problem each process of the cycle has explicitly. (We use the mixture of liquid and vapor as its working fluid.) b: Draw a T-s diagram in the ideal refrigeration cycle and label each process explicitly. Write down the COP in terms of enthalpy. c: There are the multipurpose refrigeration system and the multistage refrigeration system to improve the ideal...

Consider a Carnot-cycle heat pump with R-410a as the working fluid. Heat is rejected from the...

Consider a Carnot-cycle heat pump with R-410a as the working fluid. Heat is rejected from the R410a at 35 oC, during which process the R-410a changes from saturated vapor to saturated liquid. The heat is transferred to the R-410a at 0 oC. The specific volume during the isothermal heat addition process at 0 oC changes from 0.00841 m3 /kg to 0.02994 m3 /kg. a. Show the cycle on P-T, P-v, and T-v diagrams. b. Find the quality at the beginning...

Explain the Carnot engine cycle and plot its process on a) T-S diagram b) p-v diagram

The figure below gives data for an ideal vapor-compression heat pump cycle operating at steady state...

The figure below gives data for an ideal vapor-compression heat pump cycle operating at steady state with Refrigerant 134a as the working fluid. The heat pump provides heating at a rate of 15 kW to maintain the interior of a building at TH = 20°C when the outside temperature is TC = 0°C. State p (bar) h (kJ/kg) 1 2.4 244.1 2 10 273.6 3 10 105.3 4 2.4 105.3 Determine: (a) the temperatures at the principal states of the...

A Carnot heat pump moves heat to a warm house at 24°C at a rate of...

A Carnot heat pump moves heat to a warm house at 24°C at a rate of 300kW. The heat is pumped from the outside air at 7°C. What is the power required by the heat pump? What is the rate of change of entropy for each of the thermal reservoirs (the house, and the outside air)? Does this heat pump satisfy the second law of thermodynamics increase of entropy principle?

Consider the reversible Carnot cycle shown in the following figure given below with 1.19 mol of...

Consider the reversible Carnot cycle shown in the following figure given below with 1.19 mol of an ideal gas with C V,m =5R/2 as the working substance. The initial isothermal expansion occurs at the hot reservoir temperature of T hot = 890 K from an initial volume of 3.85 L ( V a ) to a volume of 10.5 L ( V b ) . The system then undergoes an adiabatic expansion until the temperature falls to T cold =...

The pV diagram in (Figure 1) shows a cycle of a heat engine that uses 0.250...

The pV diagram in (Figure 1) shows a cycle of a heat engine that uses 0.250 mole of an ideal gas having γ=1.10. The curved part ab of the cycle is adiabatic. The internal energy of the gas changes by the following amounts: ΔUa→b=−2220J, ΔUb→c=−1.06×104J, and ΔUc→a=+1.29×104J. c=(0.002, 1.5) b=(0.009, 1.5) Part A: Find the pressure of the gas at point a. Express answers in pascals to three significant figures. Part B: How much heat enters this gas per cycle?...

a. Refrigerators make use of the heat cycles, such as the Carnot cycle, but in order...

a. Refrigerators make use of the heat cycles, such as the Carnot cycle, but in order to remove heat from the cold source (fridge) and put that energy into the hot source (the enrivonment), another energy source must be added to the system to make this occur. The minimum energy to be supplied follows the equation given below. Find an expression for the coefficient of performance in terms of Th and Tc. coefficient of performance (c) = heat...

A Carnot-cycle refrigerator rejects heat at the pressure of 1000 kPa during which the working fluid...

A Carnot-cycle refrigerator rejects heat at the pressure of 1000 kPa during which the working fluid R -134a changes from saturated vapor to saturated liquid. The heat is added to the cycle at the pressure of 320 kPa. Show the cycle in a T-s diagram and determine the coefficient of performance of the cycle using a) the first law of thermodynamics b) the Carnot cycle efficiency equation and c) the T-s diagram.

An ideal Rankine cycle operates without superheat (wet cycle) as shown in the following T-s diagram....

An ideal Rankine cycle operates without superheat (wet cycle) as shown in the following T-s diagram. If saturated steam is expanded from 450 psia to steam with 5 % moisture, use the Mollier diagram and steam tables, as necessary, to determine the pump inlet temperature, in oF. State your answer to one decimal place.

Question