You are in charge of monitoring the pressure of a compressed air tank in a processing...
Process Design & Control
Consider the process of filling a tank with compressed
air from a constant pressure supply.
Consider the process of filling a tank with compressed air from a constant pressure supply The tank has a volume of 500 ft' and initially is at atmospheric pressure and 75°F. The tank is connected to a high pressure air line that contains a control valve. The valve is quickly opened when the filling process begins, and the flow rate of...
A diver has a compressed air tank that is initially at . The tank is connected to a regulator such that the diver is breathing in air at 760 mmHg. The diver breathes in 0.50 L of air each breath, and takes about 12 breaths per minute. The diver will need to surface when the tank pressure reaches . The tank is made of thick metal and does not change from initial volume of 11 L. Calculate the amount of...
A steel scuba tank contains compressed air at 2250 psi. What is the pressure expressed in atmospheres? A) 29.6 atm B) 153 atm C) 75.3 atm D) 3.31 × 104 atm E) 2.96 atm
A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 140 atm at 20 °C. Part A What is the volume of air in the tank (in liters) at STP? Express your answer using two significant figures. IVO AQ R O 2 ? V =
A flexible air supply hose is connected to a compressed air tank as shown in the figure. The hose is 5 m long and has an internal diameter of 10 mm. At its free end the hose discharges to the atmosphere. The air leaves the hose at sonic velocity (M = 1), with p = 100 kPa and T = 273 K. The friction coefficient C (the same as f in the Anderson text books) within the hose is 0.0227...
Part A The tank of the air compressor subjected to an internal pressure of 96 psi . The internal diameter of the tank is 22 in., and the wall thickness is 0.25 in. (Figure 1) Determine the hoop stress acting at point A. Express your answer to three significant figures and include the appropriate units. Li HA ? 0,= Value Units Submit Request Answer Figure Part B 1 of 1 Determine the longitudinal stress acting at point A. Express your...
8. If you have a 3.0 L cylinder of compressed air that contains 2.0 g of O2, and 8.0 g of N2, then at room temperature (assume 298 K), what would be the total pressure in the tank (in atm), and the pressures of O2, and of N2 (also in atm) separately? 1. A guage on a compressed gas cylinder in a hospital reads 2.200 E3 psi (pounds per square inch). (1.00 atm = 14.7 psi). Express this pressure in...
Part B Review The large tank contains air at an absolute pressure of 64 psi and temperature of 70 F The nozzle has a throat diameter of 1 in. and an exit diameter of 1.75 in. (Figure 1) Determine the absolute pressure within the connected pipe, when the nozzle chokes and maintains isentropic supersonic flow within the divergent section of the nozzle. Express your answer to three significant figures and include the appropriate units P- psi Submit Incorrect; Try Again...
2b) (10 points) If the pressure gauge at the bottom of the tank reads 100 kPa, what is the pressure in the Air at the top of the tank if the liquid temperature is 35°C? Give answer in psi and KPa. You must show your work to get full credit. ir 3 m 2m Oil (S 0.8) 3 m Water kPa
Problem 2.5 Constant Pressure Process Air is compressed from 0.092 m3 to 0.034 m’ at a constant pressure of 1.7 kPaa. Assume Perfect Gas behavior. ko kPa m3 Cpair = 29.11 ( = T(°C) + 273.15 kgmole K Tinitial = 18.9 °C Calculate the heat of the process (Q) in kJ with the calculated enthalpy. (provide your answer with four significant figures and enter the required units) Hint: Store your calculated value in one of the memories of your calculator...