Armfield Engineering Education
HEAT TRANSFER AND THERMODYNAMICS
HT33 Shell & Tube Heat Exchanger - Issue 1
The shell and tube heat exchanger is commonly used in the food and chemical process industries. This type of exchanger consists of a number of tubes in parallel enclosed in a cylindrical shell. Heat is transferred between one fluid flowing through the tubes and another fluid flowing through the cylindrical shell around the tubes.
The miniature exchanger supplied is designed to demonstrate liquid to liquid heat transfer in a 1-7 shell and tube heat exchanger (one shell and 7 tubes with two transverse baffles in the shell).
Ordering Specification
• A miniature shell and tube heat exchanger for use with an Armfield
Heat Exchanger Service Unit.
• Comprises an outer shell and 7 internal tubes. There are two transverse
baffles inside the shell.
• Four temperature sensors are supplied in tappings at fluid inlets
and outlets.
• The heat exchanger is constructed from stainless steel tube and
clear acrylic. It is mounted on a PVC baseplate which is designed to be
installed on the plinth of the Heat Exchanger Service Unit without the need
for tools.
• The stainless steel tubes can be removed from the heat exchanger
for cleaning.
• A comprehensive instruction manual is included.
Technical Details
The accessory consists of a miniature shell and tube heat exchanger with the following features:
- Hot fluid in the inner tubes and cold fluid in outer shell to minimise
heat loss from the exchanger without the need for additional insulation.
- Seven stainless steel tubes, 6.35mm OD.
- The outer annulus, end caps and baffles constructed from clear acrylic
to allow visualisation of the heat exchanger construction and minimise thermal
losses.
- Nominal combined heat transfer area of 20,000mm2, (equivalent to that
of the HT31 Tubular Heat Exchanger for direct comparison).
- Cold fluid (cold water) enters one end of the shell at the bottom and
exits at the opposite end at the top having flowed over and under two transverse
baffles inside the shell.
- Thermocouples are installed at the following 4 locations:
• Hot fluid
• Hot fluid outlet
• Cold fluid inlet
• Cold fluid
Essential Armfield Accessories
HT30XC or HT30X Heat Exchanger Service Unit
Shipping Specification
Volume: 0.06 m³
Gross Weight 5 kg
Overall dimensions
Height 0.19m
Width 0.43m
Depth 0.39m
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