Air at 300 kPa and an average of 450 K is being heated as it flows through a rectangular conduit of 10 x 15 cm? at a velocity of 15 m/s. The heating medium is 500 K steam outside of the tube. Assume resistance of the conduit is small. Calculate the heat transfer for an Lid>60 and the heat transfer flux q/A.
Q: Water flows through a tube of length L with a mean inlet temperature (T;). The tube is held at a…
A: Heat flow will increase. This can be explained with the concept of internal forced convection.
Q: In a condenser, saturated water vapour flows through cool water pipes, condenses on the surface of…
A: Copper tube diameter, d=4 cm =0.04 mAverage velocity of water through the tube, V=3 m/sWater inlet…
Q: Q4) Water at the rate of 0.6 kg/s is forced through a smooth (3cm)-ID tube 16 m long.The inlet water…
A:
Q: An air compressor is operated at cut-in and cut-out pressures of 3500 kPa and 5200 kPa,…
A:
Q: Water is being heated in a straight pipe with an inside diameter of 2.5 cm. The heat flux is uniform…
A: Given data: The properties of water at 20 degrees Celsius are:
Q: 33. Water at 25 C flows in a smooth tube, having a diameter of 5 cm, at a rate of 1 kg/s. The tube…
A:
Q: Engine oil flows at a rate of 0.05 kg/s through a section of a 2.5 cm diameter tube. The oil enters…
A:
Q: 8.8 Velocity and temperature profiles for laminar flow in a tube of radius ro = 10 mm have the form…
A: Given Data ro=10 mm Velocity profile is : μr=0.11-rro2 Temperature profile is :…
Q: 4. Compute for the Nusselt value of a forced convection through an elliptical duct at constant Ts,…
A:
Q: A house built on a riverside is to be cooled in summer by utilizing the cool water of the river. A…
A:
Q: Engine oil flows through a 50 mm diameter tube at an average temperature of 147°C. The flow velocity…
A:
Q: Liquid bismuth flows at a rate of 4.5 kg/s through a 5.0-cm-diameter stainless-steel tube. The…
A:
Q: 1. The mean Nusselt number for fully developed laminar flow in a circular tube under constant heat…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Heat transfers Air is to be heated from 15 C to 270 C, as it flows through a tube 25mm diameter…
A:
Q: Engine oil is heated by flowing through a circular tube of diameter D = 50 mm and length L = 25 m…
A:
Q: A tube with a square cross-section 2 mm in side and 1.5 m in length imposes a constant heat flux of…
A:
Q: enters a tube of 0.1 m diameter at the mean flow velocity of 0.4 kg/s. Calculate the exit water…
A:
Q: Air at 2 atm and 200 c° is heated as it flow through a tube with diameter of 2.54 cm at velocity of…
A:
Q: A liquid is entering a 10 m long pipe of 0.2 m diameter at 25°C with an average velocity of 0.02…
A:
Q: Air at 1 atmosphere and a temperature of 60f enters 1/2-in. id tube with a velocity of 80 fps. The…
A: Given information Pressure of air entering = 1 atmTemperature = 60°F = 288.7056 KDiameter of tube =…
Q: Engine oil flows at a rate of 0.05 kg/s through a section of a 2.5 cm diameter tube. The oil enters…
A: Given: Mass flow rate of the engine oil→m=0.05 Kg/s Diameter of the tube→D=2.5 Cm=0.025 m Initial…
Q: Exhaust gases at 1 atm and 300°C are used to preheat water in an industrial facility by passing them…
A: Given:- k = 0.04104 W/m·K ρ = 0.6746 kg/m3 cp =1.033 kJ/kg·K Pr = 0.6946μ = 2.76…
Q: Determine the transfer coefficient for water flowing through a 1-inch pipe. inch, 16 BWG and 3 m /…
A:
Q: Water at 15.6 °C flows across a 20- cm-square plate with a velocity of 2 m/s. A thin strip, 5 mm…
A: This question is solved with the help of the law of convection. It states that heat transfer by…
Q: An electronic device is cooled by water flowing through capillary holes drilled in the casing as…
A: Given,temperature of device = 353Kcapillary holes = 0.3mdiameter = 2.54x10-3mwater enters at a temp…
Q: Q10) A1.8 m-diameter spherical tank of negligible thickness contains iced water at 0°C. Air at 25°C…
A: To find: The rate of heat transfer to the tank. Given: The diameter of tank is 1.8 m. The…
Q: Q3 a) A rectangular duct with width of 0.3 m and height of 0.2 m is used to deliver cold fresh air…
A:
Q: An isosceles triangle channel having an apex angle of 60 ° and length of 20 m is being heated…
A: Newton's law of cooling for convection heat transfer: The law state that the rate of heat transfer…
Q: 3 Water at 15°C (p = 999.1 kg/m , cp = 4.18 kJ/kg.K and u = 1.138E-3 kg/m.s k = 0.631 W/m.°C) is…
A:
Q: You are designing an IC heatsink which uses round pins in cross-flow. The heatsink must dissipate…
A:
Q: - EXAMPLE 8-1 Laminar Flow in Horizontal and Inclined Pipes Consider the fully developed flow of…
A:
Q: Numerical investigation of heat transfer and fluid characteristics for flow though a corrugated tube…
A: Please find the solution below
Q: Exhaust gases at 1 atm and 300°C are used to preheat water in an industrial facility by passing them…
A:
Q: Find the heat transfer rate of water that enters a tube with a flow rate of 0.015 kg/s and an inlet…
A: Given data: Mass flow rate = m = 0.015 kg/s Inlet temperature = T∞ = 20°C Length of tube = L = 6 m…
Q: A plate with negligible thickness of 50 cm and a length of 100 cm is exposed to 2 different air…
A: Given dataWidth of the plate t = 50cm = 0.5mLength of the plate L = 100cm = 1mSpeed of air flowing…
Q: Air at 1 atm and 300 °C is cooled as it flows at a velocity of 5.0 m/s through a tube with a…
A: Given data: Assumption: The flow through the tube is fully developed and the pipe surface is…
Q: Water enters a heated circular tube with a diameter of 25.4 mm and a length of 5 m. The water…
A: Given: Diameter of the tube (D)=25.4mm Length of the tube (L)=5m Water velocity (V)=0.6m/s Inlet…
Q: What is the required tube length if the coolant is air and its velocity is V = 20 m/s
A:
Q: A 30mm ID, 50mm OD aluminum round tube passes air through it at a rate of 0.08 m^3/s. A 100W…
A:
Q: xhaust gases at 1 atm and 300°C are used to preheat water in an industrial facility by passing them…
A:
Q: determine the length of the tube required for fully develop flow when 9.06 kg of water per minute is…
A:
Q: Nitrogen at 1 atm and 100 °C enters into an equilateral triangular cross section duct of each side…
A:
Q: Consider fully developed flow in a circular pipe with negligible entrance effects. If the length of…
A: Given Circular pipe To find Relation of length to pressure and heat transfer
Q: A plate with a negligible thickness of 50 cm in width and 100 cm in length and from its upper…
A:
Q: 13. Slurry at a rate of 110 lbm/h and 110 F is pumped through 2 in inside diame- ter pipe. After…
A: Given; The mass flow rate of slurry, m = 110 lbm/h The temperature of slurry, T = 110 F The diameter…
Step by step
Solved in 2 steps with 2 images
- Problem 3: RT Air is flowing over an aluminum pipe (20mm OD, 5mm ID) at 6-. The pipe has 10mm thick fiberglass insulation on it. The pipe is carrying a hot air supply Thair 80°C for use in a chemical m3 process at a rate of Qhair 0.04 What is the heat rate from the hot air to the ambient air?3. A 2-shell 4 tube pass HE will be used to cool a hot fluid from 400oC to 200oC using a cooling water available at 80oC and heated at 180oC. Calculate the total heat transferred if the tubes are 50mm med wt. steel, 5 m long per pass. Assume hi = 200W/m2K and ho = 4500W/m2KThe steel pipe has an internal radius of 50 mm., a thickness of 5 mm. and a length of 5 m. Inside the pipe, hot fluid with temperature 80 C flows inside the pipe and cold fluid with temperature 20 C flowing outside the pipe. Let k=285 W/mC and hi= 25 W/mC, ho= 10 W/mC. Find 4.1) Heat Transfer Rate (Q) 4.2) Temperature on both inner and outer tube surfaces...
- K spherical shaped vessel of 1.2 m diameter is 100 mm thick. Find the rate of heat leakage, if the temperature difference between the inner and outer surfaces is 200° C. Thermal conductivity of material is 0.3 kJ /mh°C.A thick-walled cylinder tubing of hard rubber having an inside radius of 20mm is being used as temporary cooling coil in a bath. Ice water is flowing rapidly through inside tube and the inside wall temperature is 274.9K. The outside surface temperature is 297.1K. A total of 14.65W must be removed from the bath by cooling coil. How many m of tubing are required?The condenser of a steam power plant consists of AISI 302 Stainless steel tubes, each with outer and inner diameters of 35 mm and 30 mm, respectively. Saturated steam at 0.135 bar condenses on the outer surface of the tube, while water at a mean temperature of 295 K is in fully developed flow through the tube (you can assume that 295 K is the mean temperature in the axial direction of the tube (e.g. along its length) or you may assume that the inlet water temperature is 295 K). For a water mass flow rate of 0.22 kg/s, what is the outer surface temperature of the tube and the rates of heat transfer and steam condensation per unit tube length? As an approximation you may evaluate the properties of the liquid film at the saturation temperature.
- 1. A lead pipe has 2 cm inside diameter, 3 cm outer diameter, length of 130 cm. Liquid water at 4°C flows through the pipe with a bulk velocity of 2.50 km/hr. Air is blown around the outside of the pipe at 20 deg C. The inside wall of the said pipe has a temperature of 8 deg Celsius. Find: a. Overall heat coefficient (U) based on outside surface area b. Prandtl (Pr) and Reynolds (Re) numbers based on classification of flowQ2/ An aluminum sphere weighting 7kg and initially at a temperature of 533K is suddenly immersed in a fluid at 283K. if heat transfer coefficient between the sphere and fluid is 50W/m?.°C. Take density=2707kg/m3, specific heat=0.9KJ/kg.ºC and thermal conductivity= 204W/m°C. Determine th Bi number and And determine the time required to cool sphere to 263kconsider a flow of water in a cylinder maintained at constant temperature of hundred degree Celsius the diameter of the cylinder is 15 and the length of the tube is 6 metre the inlet and outlet temperature of the water is TI equal to 15 degree Celsius and equal 57 degrees celsius find the average heat transfer Coefficient associated with the flow of water mass flow rate is 2.25 kilogram per second and cp=4.178KJ/aKg.K
- Example: A 1.0 kw heater is Constructed ofaglass plte with an electrically condcting film which produčes' a Constant hent flux . The plate is 60x 60 cm and placed in an air sebeetote stream at 27c ,d atm with Uo=5 m/s. Calculate the average temp. difference along the plate, and the difference at the trailing edge.Find the required area A for the heat transfer neglecting any convective heat transfer in the flows.A large condenser (heat exchanger) in a power plant must transfer a total of 100 MW from steam running in a pipe to sea water being pumped through the heat exchanger. Assume the wall separating the steam and seawater is 5 mm of steel, conductivity 16 W/m K and that a maximum of 3.5°C difference between the two fluids is allowed in the design. Find the required minimum area for the heat transfer neglecting any convective heat transfer in the flows.A large condenser (heat exchanger) in a power plant must transfer a total of 100 MW from steam running in a pipe to sea water being pumped through the heat exchanger. Assume the wall separating the steam and seawater is 4 mm of steel, conductivity 15 W/m K and that a maximum of 5°C difference between the two fluids is allowed in the design. Find the required minimum area for the heat transfer neglecting any convective heat transfer in the flows.A large condenser (heat exchanger) in a power plant must transfer a total of 100 MW from steam running in a pipe to sea water being pumped through the heat exchanger. Assume the wall separating the steam and seawater is 5 mm of steel, conductivity 16 W/m K and that a maximum of 3.5°C difference between the two fluids is allowed in the design. Find the required minimum area for the heat transfer neglecting any convective heat transfer in the flows.