subject
Engineering, 29.09.2019 02:30 bjbass899

Air flows through a circular duct with a diameter of 8 cm at room temperature. the gauge pressure readings for the total pressure and the static pressure are 200 pa and 70 pa, respectively. assume that this system is in a room that is at a pressure of 100,000 pa and a temperature that is 300k. a. what is the velocity of the air in this 8 cm diameter duct. give your answer in m/s. b. furthermore downstream, the diameter of the duct decreases to 4 cm. what is the new velocity of the air when the diameter is 4 cm? give your answer in m/s.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
question
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
question
Engineering, 04.07.2019 18:20
Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
question
Engineering, 04.07.2019 19:20
Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain
Answers: 2
You know the right answer?
Air flows through a circular duct with a diameter of 8 cm at room temperature. the gauge pressure re...
Questions
question
Mathematics, 17.05.2021 17:50
question
Mathematics, 17.05.2021 17:50
question
Mathematics, 17.05.2021 17:50