An oil cooler for a lubrication system has to cool 1000 kg/h of oil (c,= 2.09%3DkJ/kg°C) from 80°C to 40°C by using a cooling water flow of 1000 kg/h at 30°C.(i)Give your choice for a parallel flow or counter-flow heat exchanger, withreasons.(ii)Evaluate the surface area of the heat exchanger, if the overall heattransfer coefficient is 25 W/m2C. Take c, of water = 4.18 kJ/kg°C.

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Answered: An oil cooler for a lubrication system…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A counterflow, concentric tube heat exchanger is designed to heat water from 34 to 80 deg C using hot oil,which is supplied to the annulus at 174 deg C and discharged at 140 deg C. The thin-walled inner tube has a diameter of Di=34 mm and the overall heat transfer coefficient is 500 W/m2. K. The design condition calls for a total heat transfer rate of 4400 W. What is the length of the heat exchanger? Select one: a. 0.82485 b. 1.0478 c. 0.95849 d. 0.7013
Single-shell, two-tube pass heat exchanger with surface area 0.4 m? and overall heat transfer coefficient of 1800 W/m2-K; saturated steam at 110°C condenses on one side while water at a flow rate of 0.35 kg/s enters at 17°C. Calculate (a) Outlet temperature of the water (b) Rate of condensation of steam. cp(water)=4179 J/kg. K. 916 I Thermodynamics TABLE A-4 Saturated water-Temperature table Internal energy, Specific volume, m/kg Enthalpy. KJ/kg Entropy, kJ/kg - K k/kg Sa. Sat Sat. Sat. Sat. Sat. Sat. Sat. liquid, Evap., vapor, Sat. Temp., liquid, liquid, Evap.. liquid, Evap., press. Pst kPa vapor, vapor, vapor, T°C Up he 0.001000 0.001000 0.000 21.019 42.020 2374.9 2374.9 0.001 21.020 42.022 0.0000 9.1556 9.1556 0.0763 0.1511 8.7488 8.8999 0.2245 8.5559 8.7803 0.2965 8.3696 8.6661 0.01 5 10 0.6117 0.8725 1.2281 206.00 147.03 106.32 2360.8 2346.6 2381.8 2388.7 2500.9 2489.1 2477.2 2500.9 2510.1 2519.2 8.9487 9.0249 15 20 0.001000 0.001001 2.3392 0.001002 2332.5 2318.4 2395.5 2402.3…
Parvinbhai
A shell-and-tube heat exchanger with 2 shell passes and 12 tube passes is used to heat water (cp = 4180 J/kg•K) in the tubes from 20 °C to 70 °C at a rate of 4, 5 kg/sec. Heat is supplied by hot oil (cp = 2300 J/kg•K) entering the shell side at 170 °C at a rate of 10 kg/s. For a total heat transfer coefficient on the tube side of 350 W/m²•K, determine the area of the heat transfer surface on the tube side. Mainly, I also need the solution from concepts of how the heat flow behaves in the system, it can be with a diagram.
Please answer all parts or leave for someone else to answer i will give you a very positive feedback.
A shell and tube heat exchanger is designed as a counter flow type. Water (cp = 4182 J/kg.oC) enters the shell side at 30 oC with a mass flow rate of 12.5 kg/s. A mass flow rate of 19.5 kg/s of engine oil (cp = 1060 J/kg.o C), enters the tube side at 300 oC. Each tube is having an inner diameter of 36 mm and a wall thickness of 2 mm, and a length of 3 m. If the heat exchanger effectiveness is 60 %, calculate the following:1. The heat transfer rate,2. The exit temperature for each fluid,
SEMIFINAL PROJECT IN ME 3215 COMBUSTION ENGINEERING PROBLEM: Cooling water for 507 Horsepower Diesel Engine is to be cooled by using an intermediate cooling heat exchanger as follows. At Counterflow Heat exchanger. Jacket water in --- 60 °C Jacket water out 38 °C Tower water in 27 °C Tower water out - -54 °C To be done: Make the necessary valid assumptions and calculate the flow through heat exchanger for the following quantities: kg 1. Jacket water, in sec kg 2. Tower water, in sec to coling o NEAT EXCNANGER DESEL ENGE from cool
Glycerin (cp=2400J/kgK) at 20oC and 0.5kg/s is heated by ethylene glycol (cp=2500J/kgK at 50oC at the same mass flow rate. The overall heat transfer coefficient for this thin-walled double-pipe parallel flow heat exchanger is 380W/m2K and the heat transfer surface area is 6.5m2. Determine Cmin and Cmax Find c, e, and NTU Determine heat transfer rate for the heat exchanger. Determine the outlet temperatures of both fluids.

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