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What is the pressure drop in 100 ft of 1/2 in. by 1 in rectangular duct...
Q2 A main trunk duct of air-conditioning system shown in Figure 2 is rectangular in cross-section...
Q2 A main trunk duct of air-conditioning system shown in Figure 2 is rectangular in cross-section (40 cm x 80 cm). Air at atmospheric pressure and temperature of 20c flows inside the duct with velocity of 7 m/s. The cross sectional srea snd definition of characteristic length for the duct are given in Figure 2. The duct is assumed to be m long. The flow inside the duct is assumed fully developed. (a)Find properties of air using suitable value of...
total flow and duct pressure required. QUESTION #47: Refer to the following diagram. The pressure drop...
total flow and duct pressure required.
QUESTION #47: Refer to the following diagram. The pressure drop along each branch (in. wg.) of ductwork and the required air flow (cfm) for each room is listed in the diagram below. Assume all ductwork is of the same dimensions. The minimum required airflow and pressure requirement of the following air handling unit is most nearly? 0.1 0.2 500 CFM 1500 CFM 500 CFM AHU A. 2500, 0.2 B. 2500, 0.4 C. 500, 0.1...
Chapter 08, Problem 044 A 3-ft-diameter duct is used to carry ventilating air = 2.373 x...
Chapter 08, Problem 044 A 3-ft-diameter duct is used to carry ventilating air = 2.373 x 10- slugs/fr", v= 1.57 x 10 ft/s) into a vehicular tunnel at a rate of 8000 ft/min. Tests show that the pressure drop is 1.1 in. of water per 1500 ft of duct. What is (a) the value of the friction factor for this duct and (b) the approximate size of the equivalent roughness of the surface of the duct? Use this figure. (a)f=...
Water (ρ-1000 kg/m3) flows in a rectangular channel over the 1 m drop. If the width...
Water (ρ-1000 kg/m3) flows in a rectangular channel over the 1 m drop. If the width of the channel is 1.5 m, determine the volumetric flow rate in the channel. Assume water is an ideal fluid. 0.5 m 1 m 2 m Figure 3
What is the pressure drop for 400 ft of one-inch PVC pipe with a flow of...
What is the pressure drop for 400 ft of one-inch PVC pipe with a flow of 10 gallons per minute (gpm), assume 50% EL for pipe fittings? (Refer to Figure 10.5 of the course textbook.) Question 4 options: 13 19.2 15.3 20.5
HVAC Duct Problem (thanks in advance): 2. Your loads stipulate 5,000-cfm in a 20"x20" rectangular duct....
HVAC Duct Problem (thanks in advance):
2. Your loads stipulate 5,000-cfm in a 20"x20" rectangular duct. Answer the following questions: a) What is the average velocity of air in the duct? b) What is the velocity pressure in the duct? c) If the duct was 22-inch round (the round equivalent), what are the velocity and velocity pressure in the duct?
2. Air at 35 C is ducted from from a furnace to a room via a rectangular duct that has a cros sec...
2. Air at 35 C is ducted from from a furnace to a room via a rectangular duct that has a cros section of 25 (em) x 35 (em] that is 15 (m long. If the average velocity is 6 (m/s), determine the power required by the blower to overcome the pressure drop
2. Air at 35 C is ducted from from a furnace to a room via a rectangular duct that has a cros section of 25 (em) x...
Consider a two-dimensional, fully-developed, steady viscous flow of water through a duct of constant one-centimeter width...
Consider a two-dimensional, fully-developed, steady viscous flow of water through a duct of constant one-centimeter width in the y-direction. There is no pressure variation through the flow but the water flows in the positive x-direction, which is the direction of the gravity force. $y = 0 and gx = g. (a) Using the continuity and momentum equations, determine the magnitude of the v component of velocity and develop the ordinary differential equation that governs the u component of velocity. (b)...
A 1-in. thick, 10 ft long flat plate has its outside surface maintained at 240℉. Air...
A 1-in. thick, 10 ft long flat plate has its outside surface maintained at 240℉. Air at 60℉ and atmospheric pressure is forced past this plate with a velocity of 40 fps. Determine the heat flux from the plate to the air if the flow of air is parallel to the plate. [Hint: Use the laminar scenario for flows in transition.]
Water is supplied at a rate of 100 ft? 5-1, pressure of 50 psi to a...
Water is supplied at a rate of 100 ft? 5-1, pressure of 50 psi to a turbine through a 5 ft 2 cross-sectional area pipe. The exit conditions are: Water discharges through a pipe of cross-sectional areas 2 ft2 into the atmosphere. The turbine develops a power of 500 hp. The total head loss in this system is 10ft. Assume density of water is 62.8 lbf/m3 Part 1: The velocity with which waters discharges into the atmosphere is ft s-1...
Q2 A main trunk duct of air-conditioning system shown in Figure 2 is rectangular in cross-section (40 cm x 80 cm). Air at atmospheric pressure and temperature of 20c flows inside the duct with velocity of 7 m/s. The cross sectional srea snd definition of characteristic length for the duct are given in Figure 2. The duct is assumed to be m long. The flow inside the duct is assumed fully developed. (a)Find properties of air using suitable value of...
total flow and duct pressure required.
QUESTION #47: Refer to the following diagram. The pressure drop along each branch (in. wg.) of ductwork and the required air flow (cfm) for each room is listed in the diagram below. Assume all ductwork is of the same dimensions. The minimum required airflow and pressure requirement of the following air handling unit is most nearly? 0.1 0.2 500 CFM 1500 CFM 500 CFM AHU A. 2500, 0.2 B. 2500, 0.4 C. 500, 0.1...
Chapter 08, Problem 044 A 3-ft-diameter duct is used to carry ventilating air = 2.373 x 10- slugs/fr", v= 1.57 x 10 ft/s) into a vehicular tunnel at a rate of 8000 ft/min. Tests show that the pressure drop is 1.1 in. of water per 1500 ft of duct. What is (a) the value of the friction factor for this duct and (b) the approximate size of the equivalent roughness of the surface of the duct? Use this figure. (a)f=...
Water (ρ-1000 kg/m3) flows in a rectangular channel over the 1 m drop. If the width of the channel is 1.5 m, determine the volumetric flow rate in the channel. Assume water is an ideal fluid. 0.5 m 1 m 2 m Figure 3
HVAC Duct Problem (thanks in advance):
2. Your loads stipulate 5,000-cfm in a 20"x20" rectangular duct. Answer the following questions: a) What is the average velocity of air in the duct? b) What is the velocity pressure in the duct? c) If the duct was 22-inch round (the round equivalent), what are the velocity and velocity pressure in the duct?
2. Air at 35 C is ducted from from a furnace to a room via a rectangular duct that has a cros section of 25 (em) x 35 (em] that is 15 (m long. If the average velocity is 6 (m/s), determine the power required by the blower to overcome the pressure drop
2. Air at 35 C is ducted from from a furnace to a room via a rectangular duct that has a cros section of 25 (em) x...
Consider a two-dimensional, fully-developed, steady viscous flow of water through a duct of constant one-centimeter width in the y-direction. There is no pressure variation through the flow but the water flows in the positive x-direction, which is the direction of the gravity force. $y = 0 and gx = g. (a) Using the continuity and momentum equations, determine the magnitude of the v component of velocity and develop the ordinary differential equation that governs the u component of velocity. (b)...
Water is supplied at a rate of 100 ft? 5-1, pressure of 50 psi to a turbine through a 5 ft 2 cross-sectional area pipe. The exit conditions are: Water discharges through a pipe of cross-sectional areas 2 ft2 into the atmosphere. The turbine develops a power of 500 hp. The total head loss in this system is 10ft. Assume density of water is 62.8 lbf/m3 Part 1: The velocity with which waters discharges into the atmosphere is ft s-1...
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