A rigid copper tank, initially containing 1 m³ of air at 295 K, 4 bar, is connected by a valve to a large supply line carrying air at 295 K, 15 bar. The valve is opened only as long as required to fill the tank with air to a pressure of 15 bar. Finally, the air in the tank is at 320 K. The copper tank, which has a mass of 20 kg, is at the same temperature as the air in the tank, initially and finally. The specific heat of the copper is c = 0.385 kJ/kg. K. Assuming ideal gas behavior for the air, determine: (a) the initial and final mass of air within the tank, each in kg, and (b) the heat transfer to the air and copper tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. m₁= 4.724 m2= 16.332 Qcv=651.228 Okg ✓okg x kJ

A rigid copper tank, initially containing 1 m³ of air at 295 K, 4 bar, is connected by a valve to a large supply line carrying air at 295 K, 15 bar. The valve is opened only as long as required to fill the tank with air to a pressure of 15 bar. Finally, the air in the tank is at 320 K. The copper tank, which has a mass of 20 kg, is at the same temperature as the air in the tank, initially and finally. The specific heat of the copper is c = 0.385 kJ/kg. K. Assuming ideal gas behavior for the air, determine: (a) the initial and final mass of air within the tank, each in kg, and (b) the heat transfer to the air and copper tank from the surroundings, in kJ, ignoring kinetic and potential energy effects. m₁= 4.724 m2= 16.332 Qcv=651.228 Okg ✓okg x kJ

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

See similar textbooks

Related questions

Q: 3.2) An isolated piston-cylinder contains 3 liters of saturated liquid water at a constant pressure…

A: Given: The volume of water, V = 3 litres The pressure of water, P = 200 kPa The work done by paddle,…

Q: A tank contains R134a initially at 3 degrees Celsius with a quality of 0.25. the pressure is held…

A: Given: Initial state T1=3oCx1=0.25 Supply line: Psupply=975 kPaTsupply=118oC Final State: m2=20…

Q: 1.1 Determine the electrical power supplied to a boiler when the temperature of the entering water…

A: Consider the following diagram for the boiler system, the heat input is Ql and heat loss from the…

Q: 1 1 Helium is compressed through a compressor steadily. At the inlet the pressure is P₁ = 100kPa and…

Q: The figure belows shows three components of an air-conditioning system, where T3 = 105°F and m3 =…

Q: (b) Steam at 4 MPa and 400 °C enters a nozzle steadily with a velocity of 60 m/s, and it leaves at 2…

Q: Air occupies a 0.5-m' tank. It starts at a pressure of 5 bar and a temperature of 300 K. Energy…

Q: A container is divided into two equal volumes by a very thin membrane. It is held at a fixed…

A: To Find : The change in entropy of the system after the gas has come to equilibrium Given : The gas…

Q: A 200 L tank initially contains water at 100 kPa and a quality of 1%. Heat is transferred to the…

Q: 1 Helium is compressed through a compressor steadily. At the inlet the pressure is P₁= 100kPa and…

Q: 200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at…

Q: In an air conditioning system running at steady-state, m ̇ = 0.7 kg/s of refrigerant 3 134a in…

Q: Consider a turbine operating at steady-state with the operating conditions shown in the figure.…

A: (a) Write the formula for the net power generated in the turbine. W˙net=m˙h1-h2 Here, m˙ is the mass…

Concept explainers

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Question

A rigid copper tank, initially containing 1 m³ of air at 295 K, 4 bar, is connected by a valve to a large supply
line carrying air at 295 K, 15 bar. The valve is opened only as long as required to fill the tank with air to a
pressure of 15 bar. Finally, the air in the tank is at 320 K. The copper tank, which has a mass of 20 kg, is at
the same temperature as the air in the tank, initially and finally. The specific heat of the copper is c =
0.385 kJ/kg K.
Assuming ideal gas behavior for the air, determine:
(a) the initial and final mass of air within the tank, each in kg, and
(b) the heat transfer to the air and copper tank from the surroundings, in kJ, ignoring
kinetic and potential energy effects.
m₁= 4.724
m2 = 16.332
Qcv=651.228
o kg
0 kg
x kJ

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Here we have to find the heat transfer. Given data-

VIEW

Step 2: Calculating the heat transfer.

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

4.30 Refrigerant 134a enters a heat exchanger operating ai steady state as a superheated vapour at 10 bars. 60°C. where it is cooled and condensed to saturated liquid at 10 bars. The mass flow rate of the refrigerant is 10 kg/min. A separate stream of air enters the heat exchanger at 37°C with a mass flow rate of 80 kg/min. Ignoring heat transfer from the outside of the heat exchanger and neglecting kinetic and potential energy effects, determine the exit air temperature, in °C.
No Handwriting please
Q1/ A volume of the vessel A is 0.5 m' contains saturated water at 275 °C, 80% quality. The pressure of cylinder B will be floated at 300 kPa, cylinder B in the beginning is empty. The air is flowed into cylinder B when the valve is opened and reaches to equilibrium state of 300 kPa, 275 °C. Determine the heat transfer during the process.
Saturated steam at P1=25 bar expands adiabatically through a throttling valve to P2=4 bar. If the quality of the steam at the valve inlet is x1=0.9 what is the quality x2 at the valve outlet Please respond ASAP
Air as an ideal gas is contained in a piston/cylinder system constrained by a non-linear spring. Initially the gas in the cylinder is at 100 kPa, which is balanced by the atmospheric pressure outside of the cylinder (the weight of the piston is negligible). The force on the spring at the start is zero. The spring force is F=kx². k=600. kNt/m². The cross-sectional area of the piston is 1 m², the initial volume is 1 m³, and the initial temperature is 300 K. Heat is added until the volume of the gas has expanded to 1.5 m³. Find: (a) The work done by the gas on the face of the piston (kJ). (b) The final temperature (K). (c) The amount of heat added (kJ). Hint: This problem is easiest if you calculate the spring work and the atmospheric work separately. Air V₁=1.0 m³ Piston Area = 1.0 m² T₁=300 K P₁=100 kPa Atmospheric P on upper piston face= 100 kPa