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2. (35 points) A feedwater heater uses a shell-and-tube type heat exchanger with condensing steam in...
Problem 1 (30 points): The feedwater heater for a boiler supplies 10,000 kg/hr of water at...
Problem 1 (30 points): The feedwater heater for a boiler supplies 10,000 kg/hr of water at 65°C. The feedwater has an inlet temperature of 20°C and is to be heated in a single shell, two tube pass heat exchanger by condensing steam at 90°C in the shell side. The overall heat transfer coefficient is 2,000 W/m²K. (a) Find the steam condensation rate (b) Determine the required surface area using LMTD method. (c) Determine the required surface area using NTU method
heat transfer Test Yourself A Shell-and-tube heat exchanger, consisting of a single shell and 30.000 tubes,...
heat transfer
Test Yourself A Shell-and-tube heat exchanger, consisting of a single shell and 30.000 tubes, each executing two passes, is used in a large steam power plant to condense steam to liquid water. The steam condensed in the shell side of the heat exchanger with an associated convection coefficient (h) of 11.000 W/m2.°C. The heat transfer rate through the heat exchanger (O is 2x10' W. Cooling water is passing through a thin tubes with D = 2.5 cm, at...
(LMTD method) A 2 shell, 4 tube pass heat exchanger is beingused to heat 40...
(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...
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.
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being...
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being used to heat 50 kg/s of a process fluid in the tubes from an inlet temperature of 25°C to a target temperature of 80°C using condensing steam at 150°C. The overall heat transfer coefficient for a clean heat exchanger was U-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...
(40 pts) Shell-and-Tube Heat Exchanger to make Jell-O Cups A counter-current shell-and-tube heat exchanger is used...
(40 pts) Shell-and-Tube Heat Exchanger to make Jell-O Cups A counter-current shell-and-tube heat exchanger is used to heat Jell-O solution (water + gelatin) using saturated steam on the shell side. Jell-O solution must be heated to at least 80 oC, poured into individual plastic cups, and then cooled to make the solid Jell-O cups. The Jell-O solution is heated with steam that enters the shell at 2.0 bar (Tsteam = 120oC) and exits as a saturated liquid. At this temperature...
Section C – shell and tube heat exchanger sizing The vapour condenser for the combined gas-steam ...
Section C – shell and tube heat exchanger sizing The vapour condenser for the combined gas-steam power cycle described in Section B heats river water from 15 °C to 18 °C. The condenser is a shell and tube heat exchanger with one shell pass and two tube passes. The cooling water is inside the tubes while the shell side has the condensing vapour. More details: a. The tube OD is 1 ¼” (inches), the tube wall thickness is 0.05 inches....
A shell and tube heat exchanger with one shell pass and two tube passes is used...
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,...
A shell-and tube heat exchanger has one-shell pass and 2-tube passes. This heat exchanger is used...
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...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 K at a mass flow rate of 0.2 kg/s and leaves at 300 K. The inlet and outlet temperatures...
Problem 1 (30 points): The feedwater heater for a boiler supplies 10,000 kg/hr of water at 65°C. The feedwater has an inlet temperature of 20°C and is to be heated in a single shell, two tube pass heat exchanger by condensing steam at 90°C in the shell side. The overall heat transfer coefficient is 2,000 W/m²K. (a) Find the steam condensation rate (b) Determine the required surface area using LMTD method. (c) Determine the required surface area using NTU method
heat transfer
Test Yourself A Shell-and-tube heat exchanger, consisting of a single shell and 30.000 tubes, each executing two passes, is used in a large steam power plant to condense steam to liquid water. The steam condensed in the shell side of the heat exchanger with an associated convection coefficient (h) of 11.000 W/m2.°C. The heat transfer rate through the heat exchanger (O is 2x10' W. Cooling water is passing through a thin tubes with D = 2.5 cm, at...
(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.
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being used to heat 50 kg/s of a process fluid in the tubes from an inlet temperature of 25°C to a target temperature of 80°C using condensing steam at 150°C. The overall heat transfer coefficient for a clean heat exchanger was U-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...
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,...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 K at a mass flow rate of 0.2 kg/s and leaves at 300 K. The inlet and outlet temperatures...
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