Question
In: Mechanical Engineering
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 tube heat exchanger by making necessary assumptions to calculate the dimensions of the heat exchanger. Q= 10 KW Hot Fluid( Water) Thi= 70 Celcius The= 40 Celcius Cold Fluid ( Water) Tci= 5 Celcius Tce= 15 Celcius 1) Assume the tube diameter and tube length . 2) Assume fouling coefficient based on inside and outside tubes, hdi and hdo . 3) Select the material of construction for the tubes to determine the thermal coefficient. 4) Find the Log Mean Temperature Difference (LMTD) . 5) Obtain the Correction Factor F. 6) Calculate the Mean Temperature Difference. 7) Assume the Overall Heat Transfer Coefficient “U” as initial guess according to type of heat exchanger. 8) Calculate the provisional area. 9) Calculate the number of tubes based on the assumed tube diameter, thickness of the pipe and tube length L. 10) Calculate the tube pitch and bundle diameter.
Solutions
samet mamat answered 2 years agoRelated Solutions
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...
Write an introduction about heat exchangers and heat exchanger type (single shell pass, four tube pass...
Write an introduction about heat exchangers and heat exchanger
type (single shell pass, four tube pass shell and tube heat
exchanger). Provide necessary references and citations (Harvard
system).
a shell and tube heat exchanger with four shells passes and eight tube passes uses 3kg/s...
a shell and tube heat exchanger with four shells passes and
eight tube passes uses 3kg/s of ethylene glycol in the shell to
heat 1.5kg/s of water from 20 to 50 C.The glycol enters at 80c ,
and the overall heat transfer coefficient is 900W/m2C.Determine the
area of the heat exchanger?
please slove it step by step .
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...
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 2-shell passes and 4-tube passes heat exchanger is used to heat process stream from 35°C...
A 2-shell passes and 4-tube passes heat exchanger is used to
heat process stream from 35°C to 80°C by hot water available at
90°C, which enters the thin-walled 2.5-cm-diameter tube with total
length of 65 m. The convection heat transfer coefficient is 76 W/m2
.°C on the process stream (shell) side and 190 W/m2 .°C on the
water (tube) side. For a desired factor, FT = 0.95
a) Determine the rate of heat transfer in the heat
exchanger.
b) Consider...
A two-pass shell and tube heat exchanger has an overall conductance of 450 W/m2 oC when...
A two-pass shell and tube heat exchanger has an overall
conductance of 450 W/m2 oC when used as a condenser for
a large air conditioning system. Refrigerant R-134a enters
thecondenser at 20 kg/ s as a saturated vapor at 70oC
and leaves as a saturated liquid. If cooling water enters at a rate
of 60 L/s, 10oC, determine the outlet temperature of the
cooling water and the effective area of the condenser.
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?
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