I need point 4 please please please 4. A vessel of a volume 0.03m3 contains dry saturated steam at 20 bar, calculate the mass ofsteam in vessel and the enthalpy of this mass.5.Steam at 7 bar and 250°C enters a pipeline and flows along it at constant pressure.If the steam rejects heat steadily to the surroundings, at what temperature will dropletsof water begin to form in the vapour? Using the steady-flow energy equation, andneglecting changes in velocity of the steam, calculate the heat rejected per kilogram ofsteam flowing(165 °C; 191 kJ/kg)6.0.05 kg of steam at 15 bar is contained in a rigid vessel of volume 0.0076 m³. Whatis the temperature of the steam? If the vessel is cooled, at what temperature will theeteam be iust drry saturated? Coolins is continued until the pressure in ths vessel ie

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Saturated liquid H2O enters a throttling valve at a temperature of 200 oC. Find the following: 1. The Pressure and Enthalpy at the upstream side of the valve. 2. The Quality of the water-steam mix and the pressure when the valve is set so that it throttles the flow to produce a downstream temperature of 100oC. 3. The quality and temperature downstream of the valve when the valve is reset so that it drops the downstream pressure to 200 kPa.
13m³/min of air at 1.0 atm, T1 = 16°C and o1 = 41% is heated to T2 = 27°C. Then the air is humidified with steam at 200 kPa (note: this may be a saturated mixture of liquid and vapor or superheated steam). The final state for the processes is T; = T2+ 3°C and o; = 44.5%. Find the following: a. The mass flow rate of dry air: maa=- kgda/min (+ 1%) b. The enthalpy at 2, h*2 h*2 = kJ/kgda (+ 1%) c. The relative humidity at 2, 2 02 = % (+ 1%) d. The rate of heat addition required for the process: Q12= kW (±1%) e. The mass flow rate of the added steam. msteam kg/min (+1%) f. The temperature of the steam. Tsteam = °C(+2°C)
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Find the mass in metric tons per day of at -5 °C that would theoretically made in a refrigerating plant from water at 15 °C, when the mass flowrate of CO, is 0.7 kg/s. If the specific enthalpy of evaporation of CO, at the evaporator pressure is 290.7 KJ/kg. The dryness fractions of the CO, entering and leaving the evaporator are 0.22 and 0.98 respectively. Use the following constants (4.187 KJ/kg-K, 334 kJ/kg, 2257 KJ/kg).
Please answer question with as much detail as possible Please Use the “NCEES FE Reference Handbook 10.0.1” which can be downloaded for Free from https://ncees.org/ as your Reference for tables and formulas
Outside air at 30 C drybulb & 25 C wetbulb temperature flowing at a rate of 25,000 liters/min is mix with colder air at 20 C drybulb & 18 C wetbulb temperature flowing at a rate 70,000 liters/min. After mixing , the mxture undergoes sensible heating up to 40 C . Compute the heating needed in kW. Plot the process on the Psychrometric chart and label it completely.
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Volume ama the itCTIlal CHcrgy. 4. A vessel of a volume 0.03m3 contains dry saturated steam at 20 bar, calculate the mass of steam in vessel and the enthalpy of this mass.