Reference no: EM13949807
1. Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.04 m2. Assuming the ideal gas model with k 5 1.4 for the air, determine (a) the mass flow rate, in kg/s, (b) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kW.
2. Air at 600 kPa, 330 K enters a well-insulated, horizontal pipe having a diameter of 1.2 cm and exits at 120 kPa, 300 K. Applying the ideal gas model for air, determine at steady state (a) the inlet and exit velocities, each in m/s, and (b) the mass flow rate, in kg/s.
3. At steady state, air at 200 kPa, 528C and a mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. At the duct exit, the pressure of the air is 100 kPa, the velocity is 255 m/s, and the cross-sectional area is 2 3 1023 m2. Assuming the ideal gas model, determine
(a) the temperature of the air at the exit, in 8C.
10 m/s. Assuming ideal gas behavior for the methane, plot the temperature of the gas exiting the nozzle, in 8C, versus the exit velocity ranging from 500 to 600 m/s.
|
How to solve the query containing string
: There's only 26 orders and 4 customers named Smith. Yet I get 104 rows as a result?
|
|
Describe and analyze practices in obtaining digital evidence
: Describe and analyze practices in obtaining digital evidence - Examine the forensics challenges that exist for investigations on POS systems.
|
|
Maximum and minimum temperatures
: Two kilograms of air within a piston-cylinder assembly execute a Carnot power cycle with maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to the air during the isothermal expansion is 60 kJ. At the end of the is..
|
|
Piston-cylinder assembly execute a carnot power cycle
: One and one-half pounds of water within a piston-cylinder assembly execute a Carnot power cycle. During isothermal expansion, the water is heated at 5008F from saturated liquid to saturated vapor. The vapor then expands adiabatically to a temperat..
|
|
Constant-diameter heating duct operating
: Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.04 m2. Assuming the ideal gas model with k 5 1.4 for the ..
|
|
Provide commentary on the differences between the two system
: Provide a brief commentary on the differences between the two systems for each situation, addressing the possible advantages of the activity-based view over the functional-based view.
|
|
Determine probability that there be 2 counts in 6-sec period
: A Geiger counter used in a spent nuclear fuel area records on the average of 40 counts per min. Determine the probability that there will be 2 counts in a 6-sec period.
|
|
What is the alpha for the fad followers
: 1. What is the alpha for the fad followers? Enter your answer as a percentage to two decimal places (i.e. 0.12% rather than 0.0012; the percent sign is not necessary)
|
|
Constant-diameter heating duct operating
: Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.04 m2. Assuming the ideal gas model with k 5 1.4 for the ..
|