3) A vortex tube receives 0.3 m3/min of air at 600 kPa and 300 K. The...

3) A vortex tube receives 0.3 m³/min of air at 600 kPa and 300 K. The discharge from the cold end of the tube is 0.6 kg/min at 245 K and 100 kPa. The discharge from the hot end is at 325 K and 100 kPa. Determine the irreversibility.

Solutions

Expert Solution

samet mamat answered 2 years ago

Next > < Previous

Related Solutions

Air enters the compressor at 100 kPa, 300 K and is compressed to 1000 kPa. The...

Air enters the compressor at 100 kPa, 300 K and is compressed to 1000 kPa. The temperature at the inlet to the first turbine stage is 1400 K. The expansion takes place isentropically in two stages, with reheat to 1400 K between the stages at a constant pressure of 300 kPa. A regenerator having an effectiveness of 100% is also incorporated into the cycle. The turbine and the compressor each have am isentropic efficiency of 80%. Determine the following: (a.)...

Assignment 3 Question: A 1 m3 rigid tank has propane at 100 kPa and 300 K....

Assignment 3 Question: A 1 m3 rigid tank has propane at 100 kPa and 300 K. The tank is connected to another 0.5 m3 rigid tank which has propane at 250 kPa and 400 K by a ball valve. The valve is opened and both tanks come to a uniform state at 325 K. 1- State all assumptions you need to solve the problem. 2- Calculate the final pressure of propane in both tanks? 3- Calculate the mass of propane...

A 0.2 m^3 piston/cylinder contains air at 400 K and 400 kPa and receives heat from...

A 0.2 m^3 piston/cylinder contains air at 400 K and 400 kPa and receives heat from a constant temperature heat source at 1300 K. The piston expands at constant pressure to a volume of 0.6 m^3. Determine the change of availability of the system. Assume To= 300K and Po = 100kPa. Answer should be 210.3 kJ.

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with...

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetric flow rate of 5 m3/s. The turbine inlet temperature is 1800 K. For a compressor pressure ratio of 9, determine: (a) the percent thermal efficiency of the cycle. (b) the back work ratio. (c) the net power developed, in kW.

Thermodynamics A 1 m3 rigid tank has propane at 100 kPa and 300 K. The tank...

Thermodynamics A 1 m3 rigid tank has propane at 100 kPa and 300 K. The tank is connected to another 0.5 m3 rigid tank which has propane at 250 kPa and 400 K by a ball valve. The valve is opened and both tanks come to a uniform state at 325 K. 1- State all assumptions you need to solve the problem. 2- Calculate the final pressure of propane in both tanks? 3- Calculate the mass of propane before and after opening the...

Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K,...

Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a mass flow rate of 6 kg/s. The compressor pressure ratio is 10, and the turbine inlet temperature is 1400 K. For k = 1.4 and Cp = 1.005 kJ/kg, calculate: (a) the percent thermal efficiency of the cycle. (b) the back work ratio. (c) the net power developed, in kW

9.43 An ideal air-standard state with compressor inlet conditions of 300 K and 100 kPa and...

9.43 An ideal air-standard state with compressor inlet conditions of 300 K and 100 kPa and a fixed turbine inlet temperature of 1700 K. For the cycle, Plot the net work developed per unit mass flowing, in kJ/kg, and the thermal efficiency, each versus compressor pressure ratio ranging from 2 to 50. I need the IT Thermodynamics software code, or at least I need to know how to set the code up. Also, please note that this is an air-standard...

. Air in a 0.3 m3 cylinder is initially at a pressure of 10 bar and...

. Air in a 0.3 m3 cylinder is initially at a pressure of 10 bar and a temperature of 330 K. The cylinder is to be emptied by opening a valve and letting the pressure drop to that of the atmosphere. What will be the final temperature and mass of gas in the cylinder if this is accomplished: a) In a manner that maintains the temperature of the gas at 330 K? b) In a well-insulated cylinder (Answer: Tfinal =...

Air of 0.5 kg mass is compressed in a piston-cylinder device from 300 K, 120 kPa...

Air of 0.5 kg mass is compressed in a piston-cylinder device from 300 K, 120 kPa to 500K, 940 kPa. (a) Determine the entropy change in kJ/K using (i) approximate analysis and (ii) exact analysis. (b) Determine the direction of heat transfer (into the device or out of the device).

A piston-cylinder device initially contains 0.3 m3 of nitrogen gas at 350 kPa and 35 ℃.

A piston-cylinder device initially contains 0.3 m3 of nitrogen gas at 350 kPa and 35 ℃. An electric heater within the device is turned on and is allowed to pass a 240W for 6 minutes. Nitrogen expands at constant pressure, and a heat loss of 3000 J occurs during the process. Determine the final temperature of the nitrogen. (Average CP for Nitrogen is 1.039 kJ/kgK and molecular weight of Nitrogen is 28.01 kg/kmol.)

Subjects