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A heat exchanger is to cool oil (specific heat 2200 J/kg K) at a mass flow...
A thin-walled double-pipe counter-flow heat exchanger is to be used to cool oil (cp-2200 /kg K)...
A thin-walled double-pipe counter-flow heat exchanger is to be used to cool oil (cp-2200 /kg K) from 150 C to 40°C at a rate of 2 kg/s by water (c 4180J/kg.K) that enters at 22°C at a rate of 1.5 kg/s. The diameter of the tube is 2.5 cm, O and its length is 6 m. Let the water inlet temperature vary from 5°C to 25°C. Identify the graph that depicts the overall heat transfer coefficient as a function of...
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 sam...
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...
A hot fluid of specific heat 4100 J/kg K flows through a parallel flow heat exchanger...
A hot fluid of specific heat 4100 J/kg K flows through a parallel flow heat exchanger at the rate of 3.5 kg/min with an inlet temp. of 105C. A cold fluid of specific heat 2350 J/kg K flows in at a rate of 9 kg/min and with inlet temperature 25C. Make calculations for maximum possible effectiveness if the fluid flow conforms to parallel * .flow arrangement 0.596 0.458 .321 0.825 O
2.- Hot oil (Cp = 2200 J/kg °C) is to be cooled by water (Cp =...
2.- Hot oil (Cp = 2200 J/kg °C) is to be cooled by water (Cp = 4180 J/kg °C) in a 2-shell-passes and 12-tube-passes heat exchanger. The tubes are thin-walled and are made of copper with a diameter of 1.8 cm. The length of each tube pass in the heat exchanger is 3 m. Water flows through the tubes at a total rate of 0.1 kg/s, and the oil through the shell at a rate of 0.2 kg/s. The water...
A counter-flow heat exchanger is stated to have an overall heat transfer coefficient of 284 W/m2.K...
A counter-flow heat exchanger is stated to have an overall heat transfer coefficient of 284 W/m2.K when operating at design and clean conditions. Hot fluid enters the tube side at 101°C and exits at 71°C, while cold fluid enters the shell side at 27°C and exits at 42°C. After a period of use, built-up scale in the heat exchanger gives a fouling factor of 0.0004 m2 K/W. The surface area is 93 m². Assume both hot and cold fluids have...
A concentric tube heat exchanger for cooling lubricating oil consists of a thin-walled inner tube of...
A concentric tube heat exchanger for cooling lubricating oil
consists of a thin-walled inner tube of 25 mm diameter carrying
water and an outer tube of 45 mm diameter carrying the oil. The
exchanger operates in countercurrent flow with an overall heat
transfer coefficient of 55 W/m2 K and the tabulated average
properties given below. Mass flow rates of oil and water are both
0.1 kg/s, oil enters the exchanger at 100°C, and water enters the
exchanger at 30°C. (a)...
In a counter flow double pipe heat exchanger water is heated from 25^0C to 75^0C by...
In a counter flow double pipe heat exchanger water is heated from 25^0C to 75^0C by oil with specific heat of 1.44KJ/KgK and mass flow rate of 0.81 kg/s.The oil is cooled from 240^0C to 150^0C.If the overall heat exchanger coefficient is 470W/m^2 0C.Calculate; 1.The rate flow of heat transfer 2.Sketch temperature distribution diagram 3.The mass flow rate of water 4.The surface area of the heat exchanger
In an isolated body tube heat exchanger 4.5 kg / h mass flow rate inside the...
In an isolated body tube heat exchanger 4.5 kg / h mass flow rate inside the pipes (Cp = 4.18 kJ / kgoC) to heat from 20oC to 70oC It is used. Heat, 10 kg / h by body hot oil entering at mass flow rate and 170oC (Cp = 2.30 kJ / kgoC). By accepting the heat exchanger adiabatically, a) the outlet temperature of the oil, and b) Calculate the entropy production rate in the heat exchanger.
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...
Question 3 A counter flow single pass double pipe heat exchanger is supplied with hot water...
Question 3 A counter flow single pass double pipe heat exchanger is supplied with hot water at 120°C that is to be cooled by water entering at 20°C. The mass flow rate of the hot stream is 5 kg/s, and that of the cold stream is 6 kg/s. The specific heat capacity of both fluids may be taken as 4180 J/kg.K. The overall U value is 1500W/m2.K, and the surface area for heat transfer is 20 m2 a) Determine the...
A thin-walled double-pipe counter-flow heat exchanger is to be used to cool oil (cp-2200 /kg K) from 150 C to 40°C at a rate of 2 kg/s by water (c 4180J/kg.K) that enters at 22°C at a rate of 1.5 kg/s. The diameter of the tube is 2.5 cm, O and its length is 6 m. Let the water inlet temperature vary from 5°C to 25°C. Identify the graph that depicts the overall heat transfer coefficient as a function of...
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...
A hot fluid of specific heat 4100 J/kg K flows through a parallel flow heat exchanger at the rate of 3.5 kg/min with an inlet temp. of 105C. A cold fluid of specific heat 2350 J/kg K flows in at a rate of 9 kg/min and with inlet temperature 25C. Make calculations for maximum possible effectiveness if the fluid flow conforms to parallel * .flow arrangement 0.596 0.458 .321 0.825 O
2.- Hot oil (Cp = 2200 J/kg °C) is to be cooled by water (Cp = 4180 J/kg °C) in a 2-shell-passes and 12-tube-passes heat exchanger. The tubes are thin-walled and are made of copper with a diameter of 1.8 cm. The length of each tube pass in the heat exchanger is 3 m. Water flows through the tubes at a total rate of 0.1 kg/s, and the oil through the shell at a rate of 0.2 kg/s. The water...
A counter-flow heat exchanger is stated to have an overall heat transfer coefficient of 284 W/m2.K when operating at design and clean conditions. Hot fluid enters the tube side at 101°C and exits at 71°C, while cold fluid enters the shell side at 27°C and exits at 42°C. After a period of use, built-up scale in the heat exchanger gives a fouling factor of 0.0004 m2 K/W. The surface area is 93 m². Assume both hot and cold fluids have...
A concentric tube heat exchanger for cooling lubricating oil
consists of a thin-walled inner tube of 25 mm diameter carrying
water and an outer tube of 45 mm diameter carrying the oil. The
exchanger operates in countercurrent flow with an overall heat
transfer coefficient of 55 W/m2 K and the tabulated average
properties given below. Mass flow rates of oil and water are both
0.1 kg/s, oil enters the exchanger at 100°C, and water enters the
exchanger at 30°C. (a)...
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...
Question 3 A counter flow single pass double pipe heat exchanger is supplied with hot water at 120°C that is to be cooled by water entering at 20°C. The mass flow rate of the hot stream is 5 kg/s, and that of the cold stream is 6 kg/s. The specific heat capacity of both fluids may be taken as 4180 J/kg.K. The overall U value is 1500W/m2.K, and the surface area for heat transfer is 20 m2 a) Determine the...
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