4. (21 pts.) A liquid with a specific volume of 0.0011 m'/kg and a molecular weight...
A liquid with density 1010 kg/m2 and viscosity 1.2 mPa.s drains from a building through a pipe pond as shown in the following Figure. The pipe is made of three segments as shown in (.D. 2.54 cm) to a the following Figure. P1 P2 P3) (P4 21 m 17 m 6 m Pond SegmentA L-25 m Segment B L-40 m Segment C L=7 m The pressures are measured at points P1, P2, P3, and P4. The pressure at the inlet...
QUESTION 5 A 12-m-long and 11-mm-inner-diameter pipe made of commercial steel is used to heat a liquid in an industrial process. The liquid enters the pipe with T; = 20°C, V=0.8 m/s. A uniform heat flux is maintained by an electric resistance heater wrapped around the outer surface of the pipe, so that the fluid exits at 60°C. Assuming fully developed flow and taking the average fluid properties to be p = 992.1 kg/m2, k = 0.631 W/m-°C, Cp =...
A pipe is 26.0 m long and 4.0 cm in inner diameter, with walls 1.5 mm thick. If air at 20 °C and 105 Pa absolute pressure flows through the pipe with a velocity of 10.0 m/s, then . . . What is the pipe cross section area (m2)? What is the volumetric flow rate of air (m3/s)? What is the gas density (kg/m3)? What is the mass flow rate of air (kg/s)? What is the air molecular mass (kg/mol)?...
Question 2 (30 marks) (a) A fluid flowing into a nozzle with specific enthalpy of 2980 kJ/kg and the velocity is 80 m/s. At the exit of the nozzle, the specific enthalpy of the fluid drops to 2670 kJ/kg. The nozzle orientation is horizontal and the heat loss is negligible. Given that the nozzle inlet area is 0.25 m2 and the specific volume of the fluid is 0.2 m2/kg, calculate the velocity of the fluid at exit, the mass flow...
Consider a 30 m long pipe with a diameter of 1 cm and with a smooth interior wall surface. The pipe wall temperature is kept constant at 60 C. (a) Some liquid enters the pipe with a tempera- ture of 20° C and exits the pipe with a mix- ing cup (bulk) temperature of 57°C. Know- ing that the mass flow rate of the liquid is of 0.015 kg/s, that the liquid density is of 1000 kg/m 3, that the...
A liquid of density p 840 kg/m flows in a pipe which has a narrowed section as shown. At point 1, the area is 64.0 cm and the fluid is moving at speed v 14.0 m/s Point 2 has an area of 20.0 cm a. What is the volume flow rate through the pipe? 0 b. What is the liquid speed at point 2?
A liquid (⍴ = 1000 kg/m3 ; µ = 10-1 N·s/m2 ; ν = 10-4 m2 /s) flows uniformly with a mean velocity of 0.9 m/s in a pipe with a diameter of 175 mm. Answer the following: a. Is the flow laminar, turbulent or in between? b. What is the friction factor, f ? c. What is the head loss per meter of pipe length?
What pipe diameter is necessary for a gas with a specific volume of 0.65 m-/kg and a velocity of 9 m/s to have a mass flow rate of 0.53 kg/s?
You are tasked with determining the uncertainty in the mass flow rate of a liquid flowing through a pipe. You are able to measure the density of the fluid by collecting 1L of the fluid in a graduated cylinder with markings every 10mL, and weighing the fluid on a scale with uncertainty of ± 1 g by excluding the weight of the cylinder itself (density = mass/volume). You find the weight of the fluid to be 789g. You measure the...
Question 3 [20 marks] Water (density p1000 kg/m2; dynamic viscosity 0.001 Pa-s) flows steadily through a horizontal, straight pipe with circular cross section of diameter D=0.2 m. The volumetric flow rate is 0.01 m°/s. Argue that this is turbulent flow. [4 marksl а. Pressure drop in the pipe is due to friction. The pressure drop per unit length can be written as Др 4f L with U the average velocity in the pipe and fthe friction factor. Given the pipe...