Question

In: Physics

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:
1) the interior and exterior convection coefficient
2) Total heat transfer coefficient (u)

Explain your procedure as widely as possible.

Solutions

Expert Solution


Related Solutions

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: HEAT EXCHANGER Oil flows in a heat exchanger with a mass flow rate of...
HEAT TRANSFER: HEAT EXCHANGER Oil flows in a heat exchanger with a mass flow rate of 20 kg/s and is to be cooled from 175 to 65°C with water as a coolant flowing at a rate of 30 kg/s and an inlet temperature of 12°C. The overall heat transfer coefficient is U = 1250 W/m2⋅K. a) Sketch the temperature profile and calculate the mean temperature for parallel flow, counter flow, and cross flow heat exchangers.. b) Determine the area required...
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?
Address the following questions related to heat exchanger effectiveness. Recall that the maximum heat transfer possible...
Address the following questions related to heat exchanger effectiveness. Recall that the maximum heat transfer possible is the product of the minimum heat capacity (mass flow rate times specific heat) times the difference between the hot and cold side inlet temperatures. a. sketch the temperature profiles for a 50% and 80% effectiveness heat exchanger. make sure you have the correct shape which includes the degree of steepness at each end. b. What is the effectiveness for a heat exchanger with...
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 heat exchanger is used to transfer heat from a steam stream to a chlorine gas...
A heat exchanger is used to transfer heat from a steam stream to a chlorine gas stream. 100 kg of steam at 1 bar and 250°C enters the heat exchanger and leaves the exchanger as saturated steam at 1 bar. Chlorine gas enters the exchanger at 1 bar and 33.0°C and leaves the exchanger at 132.0°C. Assume the heat exchanger is adiabatic. A)What is the specific enthalpy of the inlet steam stream? (Use liquid water at 0.01°C as a reference...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT