Question

In: Other

A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large...

A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. How long must the tube be made if the outlet temperature of the oil is to be 60 C?

Solutions

Expert Solution

Thank you.. Please upvote

Amanda K answered 5 months ago
Next > < Previous

Related Solutions

3.- In an industrial process, a concentric tube exchanger is used to cool 1800 Kg /...
3.- In an industrial process, a concentric tube exchanger is used to cool 1800 Kg / hr of ammonia from 80 ° C to 35 ° C circulating through the annular space, with 1485 Kg / hr of water entering the concentric tube at 25 ° C. The water leaving the exchanger is sent to a mixing tank with agitation, which is fed by another stream of water at 15 ° C in order to reduce its temperature to 25...
In a pipe heat exchanger, crude oil on 30 ℃ is used to cool the heavy...
In a pipe heat exchanger, crude oil on 30 ℃ is used to cool the heavy oil from 180℃ to 120℃.Mass flow of heavy oil is Wh=104kg / h，and crude oil respectively Wc=1.3×104kg/h. Specific heat, respectively is Cph=2.2 kJ/(kg•℃), Cpc=1.9 kJ/(kg•℃). Overall heat transfer coefficient K=120W/(m2•K). Try to calculate the required heat transfer area for parallel flow and countercurrent flow.
A counterflow, concentric tube heat exchanger used for engine cooling has been in service for an...
A counterflow, concentric tube heat exchanger used for engine cooling has been in service for an extended period of time. The heat transfer surface area of the exchanger is 5 m2, and the design value of the overall convection coefficient (without any fouling) is 38 W/m2K. During a test run, engine oil flowing at 0.1 kg/s is cooled from 110oC to 66oC by water supplied at a temperature of 25oC and a flow rate of 0.18 kg/s. Determine whether fouling...
A counterflow, concentric tube heat exchanger used for engine cooling has been in service for an...
A counterflow, concentric tube heat exchanger used for engine cooling has been in service for an extended period of time. The heat transfer surface area of the exchanger is 5 m2, and the design value of the overall convection coefficient (without any fouling) is 38 W/m2K. During a test run, engine oil flowing at 0.1 kg/s is cooled from 110oC to 66oC by water supplied at a temperature of 25oC and a flow rate of 0.18 kg/s. Determine whether fouling...
liquid oil is used in the tube side of a shell-and-tube heat exchanger with two shell...
liquid oil is used in the tube side of a shell-and-tube heat exchanger with two shell passes and four tube passes. water is heated in the shell side from 10°C to 50°C while the oil is cooled from 90°C to 60°C. the overall heat transfer coefficient is 53 W/m^2*K. the specific heat of the oil is 2.0 kJ/kg*K. Using the NTU - effectiveness method, calculate the area of the heat exchanger for a total energy transfer of 500 kW. what...
Design a concentric tube heat exchanger (in co-current configuration) to heat 1000 cm3/ min of water...
Design a concentric tube heat exchanger (in co-current configuration) to heat 1000 cm3/ min of water from 30oC to 45oC flowing in the shell, using water at 65oC flowing in the tube. The heating water should not exit with temperature above 55oC. Choose a suitable range of inner pipe (copper material) diameters for heat exchanger, assume suitable inner tube thickness and outer tube diameter and show selection of parameters and dimensions for an optimum design.
A shell-and-tube heat exchanger is to used to heat water (in the tube side) from 30...
A shell-and-tube heat exchanger is to used to heat water (in the tube side) from 30 deg C to 40 deg C at a mass flow rate of 4 kg/s. The fluid used for heating (shell side) is water entering at 90 deg C with a mass flow rate of 2 kg/s. A 1-2 STHE is used and the overall heat transfer coefficient based on the inside area is 1390 W/m2-K. The tubes are 1.875 in diameter (inside) and require...
In the two-tube heat exchanger with the same axis used as engine oil cooler, cold water...
In the two-tube heat exchanger with the same axis used as engine oil cooler, cold water enters the steel pipe with inner/outer diameter of 25/30 mm (K= 55 W/mK) entering with at 15°C temperature, 0.5 m/s speed and comes out at 25°C temperature. Hot oil enters the steel pipe with inner/outer diameter of 40/46 mm with a speed of 0.25 m/s at 60°C temperature. According to the oil is required to be cooled at 5°C; A) Find the pipe length...
A one-shell pass, two-tube pass heat exchanger (1-2) is to cool at mh= 1.5 kg/s oil...
A one-shell pass, two-tube pass heat exchanger (1-2) is to cool at mh= 1.5 kg/s oil (Cph = 2100 J/kg. oC) from Th,in = 90 oC to Th,out = 40 oC with water (Cpc = 4180 J/kg.oC) entering at Tc,in = 19 oC and mc = 1 kg/s. The overall heat transfer coefficient Um is 250 W/m2.oC. Design the heat exchanger requires for the process by using 2.5 cm (OD), 2.2 cm (ID) and 5.5 m long tubes. How will...
An oil cooler is in the form of a single shell 4 tube heat exchanger in...
An oil cooler is in the form of a single shell 4 tube heat exchanger in which oil passes through the tubes and cool water passes through the shell. Water comes in at 15C and leaves at 25C and has a mass flow rate of 20 kg/min. Oil enters at 35C with a mass flow rate of 30 kg/min. Cp of oil is 2.13 kJ/KgC and that of water is 4.18 kJ/kgC. If the surface area of the heat exchanger...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT