Question
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We have a heat exchanger tube whose speed is doubled. How will the α-value and the...
We have a heat exchanger tube whose speed is doubled. How will the α-value and the pressure drop be affected by this, ie how much will their value increase as a percentage? What circumstances (factors) decides the choice of optimum speed?
Solutions
Amanda K answered 10 months agoRelated Solutions
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...
A shell and tube heat exchanger is to be desined by kern's method to heat Toluene....
A shell and tube heat exchanger is to be desined by kern's
method to heat Toluene.
Toulene: T(in)=100F, T(out)=257F, flowrate=125000Ib/hr
P(in)=90Psia composition:100% Toluene.
Styrene: T(in)=300F, T(out)=176F, P(in)=50psia composition:100%
Styrene
What is the mass flow rate of Styrene? Which fluid should be in
the shell side and which should be in the tube side and why?
A production engineer bought a heat exchanger whose value is $ 18500 with a useful life...
A production engineer bought a heat exchanger whose
value is $ 18500 with a useful life period of 10 years, this
equipment is expected to produce income from year 1 for $ 3000,
increasing by $ 800 per year. It is also known that annual
operating costs are $ 350 from year 3. In year 5, maintenance must
be done for $ 1500. If the rate of return is 12%, determine the
present value of the investment.
Heat transfer In a test in a double tube heat exchanger the following data are obtained...
Heat transfer
In a test in a double tube heat exchanger the following data are
obtained
For hot fluid
Flow = 11.6 gal / sec
Outlet temperature = 30.1 ° C
Inlet temperature = 32 ° C
For cold fluid
Flow 11gal / min
Outlet temperature 25.1 ° C
Inlet temperature 24.2 ° C
For the fluid consider
k = 0.49 w / mK
cp = 3729.95 J / kgK
Prandtl number = 14.29
Density = 1035.02kg / m3
Get:...
Heat transfer in a test in a double tube heat exchanger the following data are obtained...
Heat transfer
in a test in a double tube heat exchanger the following data are
obtained
For hot fluid
Flow = 11.6 gal / sec
Outlet temperature = 30.1 ° C
Inlet temperature = 32 ° C
For cold fluid
Flow 11gal / min
Outlet temperature 25.1 ° C
Inlet temperature 24.2 ° C
For the fluid consider
k = 0.49 w / mK
cp = 3729.95 J / kgK
Prandtl number = 14.29
Density = 1035.02kg / m3
Get:...
The condenser of a thermoelectric plant is a shell and tube heat exchanger consisting of a...
The
condenser of a thermoelectric plant is a shell and tube heat
exchanger consisting of a shell and 30,000 tubes, each of which
executes two steps. The tubes are thin- walled with D = 25 mm, and
the steam condenses on its outer surface with a convection
coefficient of ho = 11 kW/m2 K. The heat transfer that the
exchanger must perform is 2,000 MW, and this is carried out by
passing cooling water through the pipes at the rate...
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...
A shell and tube type of heat exchanger with one shell pass and two tube passes...
A shell and tube type of heat exchanger with one shell pass and
two tube passes will be designed to provide the given heat transfer
rate Q(kW) to cool hot water by using cold river water . The hot
water flows through the shell and the cold water flows through the
tubes. The inlet and outlet temperatures of the hot water and the
cold water are given as Thi, The and Tci, Tce in degrees Celcius.
Design the shell and...
A shell and tube type of heat exchanger with one shell pass and two tube passes...
A shell and tube type of heat exchanger with one shell pass and
two tube passes will be designed to provide the given heat transfer
rate Q(kW) to cool hot water by using cold river water . The hot
water flows through the shell and the cold water flows through the
tubes. The inlet and outlet temperatures of the hot water and the
cold water are given as Thi, The and Tci, Tce in degrees Celcius.
Design the shell and...
A shell-and-tube heat exchanger with two tube passes and baffled single shell pass is used as...
A shell-and-tube heat exchanger with two tube passes and baffled
single shell pass is used as oil cooler. Cooling water at 20°C
flows through the tubes at a flow rate of 4.082 kg/s.
Engine oil enters the shell side at a flow rate of 10
kg/s. The inlet and outlet temperatures of oil are 90°C
and 60°C, respectively. The overall heat transfer coefficient based
on the outside tube area (Uo) is 262
W/m2⋅K. The specific heats of water and oil...
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