The device is made up of a slab assembly. Between two copper plates are the primary heater and a radial guard heater. The specimen is set up with cooling plates that circulate water on one side and slabs of identical thickness that are positioned on either side of heaters. The radial guard heater makes sure that the specimens receive all of the heat from the main heater, which is then collected by cooling plates, axially through the specimens. It is possible to determine a specimen's thermal conductivity by knowing the temperatures and the heat input. An enclosure with insulation is used to provide a quiet environment for the test setup. The device' design is in line with the approved INDIAN standard. The size disparity is present.

SPECIFICATIONS

• Heaters:

  a)Main heater plate 110 mm dia. with mica heater Sandwiched between copper plates.

  b)Radial guard heater plate I.D. 120mm and OD 200 mm mica heater sandwiched between copper plates.

• Water circulated cooling plates -2 nos.
• Dimmerstat-2 A capacity – 2 nos. to independently control Inputs to the heaters.
• .Measurements –

A voltmeter and an Ammeter with selector switches to measure inputs,Multichannel digital temperature

indicator to measure Temperatures at various points, having 0.1 °c least count.

SERVICES REQUIRED

• 230 V, A.C. stabilized supply along with earthing connection.
• Water supply of about 4-5 lit/min.
• Bench area 1m x lm x O.5m height.