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Unsteady State Heat Transfer (SMT-HT-26)
A bench top unit designed to allow experiments on
unsteady state heat transfer.
Water Bath: 30 litres insulated stainless steel tank
with top plate and mounting for solid shapes
holder. The heating is by a 3.0kW electric heater
with thermostat control while the water circulation
is by a centrifugal pump.
Solid Shapes: 7 Pieces of solid specimens made of
brass and stainless steel are supplied. The three
different shapes are solid sphere, rectangular slab
and long solid cylinder. Each solid shape has a builtin temperature sensor at the centre.
The Unsteady State Heat Transfer unit is designed for the investigation of the temperature
variation with time and heat flow within solid shapes that are subjected to sudden heating.
The unit consists of a stainless steel water bath and integral flow duct with external water
circulating pump. The bath has a capacity of approximately 30 liters and is heated by a
thermostatically controlled 3 kW electric heating element in the base of the bath. Adjustment
of the thermostat allows the bath to be set to a nominally constant temperature before
beginning the experimental procedure. The heating element incorporates internal thermal
protection so that power is switched off in the event of the heater being turned on when not
covered by water. However, repeatedly allowing the heater to overheat in this wax should
be avoided as it will eventually fail. The control panel is provided having all the necessary
wiring, temperature measurements and digital indicators.