Product Description

Thermal conductivity of liquid is an important engineering property. The ‘Swarg Systems & Instruments’ apparatus uses guarded hot plate method for determining thermal conductivity. It consists of hot plate i.e. an electrical heater sandwiched between aluminum plates. The heat loss from hot plate is prevented by using two guard heaters and heat of hot plate is made to flow through specimen. Cold plate on opposite face of liquid removes heat from liquid by circulation of water. Input to heaters can be varied and measured. The temperatures are measured by a digital temperature indicator.

SPECIFICATIONS
1. Guarded hot plate assembly comprising of main heater, ring guard heater and top guard heater, mounted over the liquid test cavity.
2. Cold plate assembly provided with water connections.
3. The assembly is housed in a enclosure box with glass wool insulation.
4. Instruments panel consisting of –

  • Digital voltmeter and ammeter of suitable range.
  • Dimmer for controlling input to the heaters (2amp. 3 nos.)
  • Multichannel digital temperature indicator.

SERVICES REQUIRED
1) Floor space of about 0.75m. x 1.5m. at working height.
2) 230v, AC electrical supply with earthing connection.
3) Water flow rate of about 10-15 lit/min. at constant head.