prevents changes to this answer. uestion 9 2 points [CLO-41 Consider the 2-shell pass and 4-tube...
Question Completion Status: [CLO-4) Consider the 2-shell pass and 4-tube passes heat exchanger shown in the fure, cold water enters the tube at 10 °C and leaves at 70°C. Hotoletters the shell. The mass flow rate of water is 5 kg/s and of oil is 20 kg/s. if needed, you may take the specific heat Cp of liquid water to be 4.18 kuand of the oil is 20 kk.. Shell-side fluid Out Tube Image 016-new.pdf side fluid le Our The...
A shell-and tube heat exchanger has one-shell pass and 2-tube passes. This heat exchanger is used to cool oil, flowing through the tube-side from 140°C to 50°C. The cooling is accomplished by water, flowing through the shell-side, which enters the heat exchanger at 15°C and leaves at 32°C. Each tube pass consists of 60, 2.54-cm-O.D. tubes with a wall thickness of 1.65 mm.if the inside and outside heat transfer coefficients are h1=260 W/(m^2°C) and h°=970 W/(m^2°C), respectively, and the fouling...
2. (35P) Ashell-and-tube heat exchanger with 1-shell pass and 20-tube passes is used to heat glycerin (Cp = 2480 J/kg) in the shell, with hot water in the tubes. The tubes are thinwalled and have a diameter of 1.5 cm and length of 2 m per pass. The hot water (Cp=4180 J/kg Centers the tubes at 102°C at a rate of 9 kg/s and leaves at 55°C. Overall heat transfer coefficient U=13900 W/m2C. The glycerin enters the shell at 15°C...
A shell and tube heat exchanger with one shell pass and two tube passes is used to heat 8.82 kg/s of fluid from 15.6 °C to 60 °C by using saturated steam at 150 kPa. The steam is condensing on the outside of the tubes with h= 15 kW/m2.K. There are 50 tubes with an outside diameter of 1.91 cm and a wall thickness of 0.211 cm. If the fouling coefficient on the inside of the tubes is 5678 W/m2.K,...
Problem 2: Heat exchanger (25 points) Cold water (op 4179 J/kg K) enters the tubes of a heat exchanger at 20 °C at a rate of 3 kgs. while hot oil (cp 2200 J/kg.K) enters the shell at 130 C at the same mass flow rate and leaves at 60°C The heat exchanger consistsoftwo shells and 20 tubes, each executing four passes (two passes per shell). If the W/m2-K, assume the tube wall is very thin with convective heat transfer...
6 Problem 4 (25%) A 2-shell passes and 4-tube passes heat exchanger is used to heat glycerin (Cp.gly = 2447) entering at 15 °C by hot water (Cp water = 4180 f.), which enters at 90°C. The thin-walled inner tube has a 4 cm diameter and a total length of 15 m. The hot water flows through the tube at a total rate of 0.265 kg/s, and the glycerin through the shell at a rate of 0.6 kg/s. The convection...
PROBLEM #3 (30 points) A shell-and (N 20) is used to heat vegetable oil on the shell side using hot water on tethat side. is Lp- 3.0 m). Each copper tube has dimensions of 15.56-mm ID and 19.05-mm OD and thermal conductivity of copper is 390 W/m-K. Water at a total flow rate of 3.33 kg/s enters the tubes of the heat exchanger at 360 K and leaves at 300 K The inlet and outlet temperatures of oil are 290...
(LMTD method) A 2 shell, 4 tube pass heat exchanger is being
used to heat 40 kg/s of a process fluid in the tubes from an inlet
temperature of 15°C to a target temperature of 70°C using
condensing steam at 150°C. The overall heat transfer coefficient
for a clean heat exchanger was Uo=1500W/m2.°C, however, the design
engineer neglected to take into account fouling of the heat
exchanger. After 5 years of use, fouling has occurred with fouling
factors of 0.0005m2.°C/W...
6. A shell-and-tube heat exchanger with 2-shell passes and 12-tube passes is used to heat water (c 4,180 J/kg K) flowing at a rate of 4.5 kg/s in the tubes from 20°C to 70°C. Heat is supplied by hot oil (cp 2300 J/kg K) that enters the shell side at 170°C at a rate of 10 kg/s. If overall heat transfer coefficient on the tube-side is 350 W/m-K, determine the heat transfer surface area on the tube side.
2. (35 points) A feedwater heater uses a shell-and-tube type heat exchanger with condensing steam in one shell pass at constant 130 °C. Water enters the tube at 25 °C and make four passes to produce an overall heat transfer coefficient, U value of 1,800 W/m2°C. Calculate the area of the heat exchanger for 2.4 kg/s mass flow of the water, with a water exit temperature of 95 °C. Here, the specific heat at Tm 60 °C is 4185 J/kg.°C.