Question

In: Mechanical Engineering

During isobaric process m=64 kg of wet water stream at temperature t=262.7?C and pressure p=49 bar...

During isobaric process m=64 kg of wet water stream at temperature t=262.7?C and pressure p=49 bar changed its specific volume from v1 =0.0018 m3/kg to v2=0.035 m3/kg. Find initial and final quality of steam, change of internal energy of steam, work done by steam, amount of heat exchanged with surroundings. Draw the process at the enthalpy-entropy diagram. From tables for p=49 bar: v’=0.0013 m3/kg, v”=0.0403 m3/kg, h’= 1148.4 KJ/kg, h”= 2794.7 KJ/kg

Solutions

Expert Solution


Related Solutions

Q3. 5 kg of water at T = 20° C and P = 7 bar is...
Q3. 5 kg of water at T = 20° C and P = 7 bar is isobarically heated such that ΔU = 5000 kJ. (i) Find the initial and final volumes (in m3 ). (ii) Find Q and W (in kJ). (iii) Show the initial and final states on p-υ and T-υ diagrams (not to scale), denoting by arrows the direction of the process. Label the ‘f’ (saturated liquid) and ‘g’ (saturated vapor) points. Also, indicate the values of υf...
3 Kg mass of water is heated to a temperature of 99.5 C at 1 bar...
3 Kg mass of water is heated to a temperature of 99.5 C at 1 bar of pressure. It is slowly poured into a heavily insulated beaker containing 7.5 Kg of water at a temperature and pressure of 4 C, 1 bar, respectively. The specific heat of the water, an incompressible material is, c = 4.1 KJ/(Kg K). The beaker can be considered to be an adiabatic system. The two water mass’ reach an equilibrium temperature. There is no kinetic...
Water at a gauge pressure of P P = 3.2 atm a t m at street...
Water at a gauge pressure of P P = 3.2 atm a t m at street level flows into an office building at a speed of 0.78 m/s m / s through a pipe 5.8 cm c m in diameter. The pipe tapers down to 2.2 cm c m in diameter by the top floor, 16 m m above (Figure 1). Assume no branch pipes and ignore viscosity. Figure1 of 1 Part A Calculate the flow velocity in the pipe...
Thermodynamics - water P = 20 bar, T = 250 C, what is the specific volume?...
Thermodynamics - water P = 20 bar, T = 250 C, what is the specific volume? (choose the closest answer) a)0.1085 b)0.15 c)0.1200 d)0.1308 T = 240 C, P = 2.5 bar, what is the specific internal energy?. a)2713.1 b)2714 c)2717.2 d)2720 P = 20 bar, h = 2900 kJ/kg, what is the temperature? a)250 b)240 c)280 d)300
An industrial process requires a 10.0 Kg Iron bar to be at heated to a temperature...
An industrial process requires a 10.0 Kg Iron bar to be at heated to a temperature of TF = 1100.0 C before a forging process can proceed. The induction heater that is used during the process produces a power output of P = 50,000 watts or (j/s) to heat the bar. a) If the bar starts at a temperature of Ti = 20.0 C how much energy is required to raise the temperature of the bar to the working temperature...
One mole of Neon at T=298K and P=10.0 bar expands to final pressure of 1.0 bar....
One mole of Neon at T=298K and P=10.0 bar expands to final pressure of 1.0 bar. Calculate the final temperature, q, w, change in energy, enthalpy, eand entropy when the expansion is carried our according to the following scenarios: A. They system is held in a heat bath that maintains constant temperature and the expansion is carried out very slowly and carefully, with the external pressure being gradually reduced from 10 bar to 1 bar. B. The system is held...
During a compression process, 35 (kg/min) of R-134a at 0.6 (bar) and 0 (°C) is continuously...
During a compression process, 35 (kg/min) of R-134a at 0.6 (bar) and 0 (°C) is continuously sent through a pipe system with an internal diameter of 3 (in.). The discharge pressure is 0.5 (MPa) and 30 (°C). The inside diameter of the tube is 1 (in.). During the process, heat is transmitted at a rate of 9 (kJ/s). Calculate the power produced by the compressor, consider g = 9.81 (m/s^2 ).
The temperature inside a pressure cooker is 117°C. Calculate the vapor pressure of water inside the...
The temperature inside a pressure cooker is 117°C. Calculate the vapor pressure of water inside the pressure cooker. The enthalpy of vaporization of water is 40.7 kJ/mol. What would be the temperature inside the pressure cooker if the vapor pressure of water was 2.50 atm? The enthalpy of vaporization of water is 40.7 kJ/mol.
1.45 kg    of ice at   -5 ∘C    is dropped into   31 kg    of water at temperature   15.3 ∘C   . Part...
1.45 kg    of ice at   -5 ∘C    is dropped into   31 kg    of water at temperature   15.3 ∘C   . Part A - Final Temperature What is the final temperature of the system? (If I've set the problem up right, you should be given numbers such that all of the ice has melted.)   Tf   =    ∘C    Part B - Entropy of Warming Ice What is the change in entropy of the ice, as it warms up before melting? S = J/K Part C - Entropy...
5. The vapor pressure, p, of a compound varies with temperature as follows T / oC...
5. The vapor pressure, p, of a compound varies with temperature as follows T / oC 0 20 40 50 70 80 90 100 p/ kPa 1.92 6.38 17.7 27.7 62.3 89.3 124.9 170.9 What are the (a) normal boiling point, (b) the enthalpy of vaporization and (c) the entropy of vaporization for this compound.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT