Teaching equipment : Study of condensation

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Study of condensation

DESCRIPTION

Water in a closed glass chamber is heated by an electric heater and is converted into vapour.

This vapour is condensing in drops on one condenser and as a film on another condenser.

An air jet blower extracts the air from the condensers.

The instruments of this unit make it possible to measure the heat exchanged and to observe the advantages of condensation in drops over condensation as a film.

Teaching equipment : Study of condensation - BEC 010

The BEC equipment is delivered complete with instrumentation and includes a technical manual as well as instructions.

TECHNICAL SPECIFICATIONS

1. Glass tube
2. Heater
3. Heater control (3 kW maximum)
4. Two flow meters 0 - 200 L/h ; 4 - 40 L/h
5. Two condensers (film, drop)
6. Separator
7. Cooler
8. Flow meter ± 1 bar

9. Safety valve
10. Air jet blower with water jet (vacuum generator)
11. Air extraction valve
12. Control valve for the jet blower
13. Eleven temperature measurements
Three for each condenser
Four for the water inlets and outlets
One for the boiling temperature

PEDAGOGIC APPLICATIONS

Visual observation of the boiling water and the condensation in drops and as a film.
Measurement of the heat flow and the surface heat transfer coefficient for the condensation in drops and film
Examination of the relationship between temperature and pressure for the saturated water vapour between 50°C and 100°C
Visual demonstration of the effect of air in a condenser
Observation of DALTON’s law.

Teaching equipment : Study of condensation - schema BEC 010

UTILITIES
Electricity: 230 V single phase - 50 Hz – 3 kW
Water : 800 L/h maxi (2.5 bars are required)

DIMENSIONS
Length : 500 mm
Width : 400 mm
Height : 620 mm
Weight : 30 kg

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Study of condensation

Didatec Technologie - ZA du Parc 42490 Fraisses - France - Tel : 33 (0)4 77 10 10 10 - Fax : 33 (0)4 77 61 56 49
E-Mail : didatec.technologie@wanadoo.fr