Liquid Mass Transfer and Diffusion Unit

The Liquid Mass Transfer and Diffusion Unit, is a teaching unit that allows the students to familiarise with the notions of mass transfer theory, specially the diffusion in liquid systems, obtaining experimental data and results which are very useful for an ideal practice understanding of the process and consequently, for the technical teaching of the students.

ATENG 10823 — Liquid Mass Transfer and Diffusion Unit

Bench-top unit.

Anodized aluminum frame and panels made of painted steel.

Main metallic elements made of stainless steel.

Diagram in the front panel with distribution of the elements similar to the real one.

• Transparent tank for liquids (experimentation vessel), capacity: 2.5 l.
• Magnetic stirrer and magnet, range: 0 – 300 rpm.
• Conductivity meter and conductivity cell:
  Conductivity
  Range Measurement Resolution
  200 µS 0.1 to 199.9 µS 0.1 µS
  2 mS 0.2 to 1.999 mS 0.001 mS
  20 mS 2 to 19.99 mS 0.01 mS
• µS - micro Siemens; mS – milli Siemens.
  Temperature
• Measurement range: 0 °C – 60 °C. ATENG 10823 detail
  Resolution= 0.1 °C.
  Accuracy= 0.8 °C.
• Diffusion cell:
  Capillaries number (N) = 317.
• Capillary length (x) = 5 mm.
• Capillary diameter (D) = 1 mm.
• Thermostatic bath:
• Water vessel, capacity: 8 l.
  Heating element, 500 W.
  Level switch.
  Temperature sensor “J type”.
• Electronic console:
  Metallic box.
  Temperature sensor connection.
  Level switch connection.
  Heating resistance switch.
  Stirrer switch.
  Heating element temperature controller.
  Main switch.
  Cables and accessories, for normal operation.