Physics, 13.01.2021 17:20, xcrysttallx

The temperature of the engine oil of a diesel engine needs to be reduced from 95 oC to 70 oC. A cross-flow heat exchanger (HE) is used for this purpose. The engine oil flows through the tubes which are arranged in a 7 x 7 array. Water is used as a coolant which flows over the tube array. The water enters the HE at a mass flow rate of 2.22 kg/s and exits at 33 oC. The mass flow rate of the engine oil is 1.5 kg/s. The specific heats of the oil and water are 1.9 kJ/kgK and 4.18 kJ/kgK, respectively, and the convective HT coefficients are 1,000 W/m2K and 1300 W/m2K, respectively. If the tube diameter is 1 cm (ignore its wall thickness), determine the length of the tube bank

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 05:10, wendymtz2004

Which situation will have the highest resistance? a. long wire and high temperatureb. short wire and high temperaturec. long wire and cold temperaturedshort wire and low temperature

Answers: 2

continue

Physics, 22.06.2019 07:30, elijahjacksonrp6z2o7

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?

Answers: 1

continue

Physics, 22.06.2019 13:10, kelonmazon2492

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Answers: 3

continue

Physics, 22.06.2019 13:40, mvongphakdy8746

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.

Answers: 2

continue

Do you know the correct answer?

The temperature of the engine oil of a diesel engine needs to be reduced from 95 oC to 70 oC. A cros...