Engineering, 14.04.2020 16:00 elijahjacksonrp6z2o7

1. As a design engineer for a large heat exchanger manufacturing company, you are to provide a quick estimate on the size of a shell-and-tube heat exchanger. The heat exchanger will be used to condense steam (1 atm) within the shell by raising the temperature liquid water from 20 to 90°C within the tubes. It is desired to transfer 600kW from the steam to the liquid water. The diameter of the tubes is 1 cm and the velocity of the liquid water is not to exceed 3 m/s. Determine: a) the mass flow rate of the liquid water, b) the minimum number of tubes required in this one-shell and two-tube-pass heat exchanger, c) the steam condensation rate, and d) the tube length required to transfer 600kW, if the tubes are thin-walled and minimum number of tubes are considered.

Answers: 3

Show answers

Another question on Engineering

Engineering, 04.07.2019 12:10

On a average work day more than work place firs are reorted

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.

Answers: 3

Answer

Engineering, 04.07.2019 18:10

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Answers: 2

Answer

You know the right answer?

1. As a design engineer for a large heat exchanger manufacturing company, you are to provide a quick...

Questions