Description

Drop Film Condensation Apparatus is widely used for determining and comparing the surface heat transfer coefficient for Dropwise condensation and film-wise condensation. We offer the product to our patrons in recommended specifications and at affordable rates.

Technical Description:

• • • Condensation is a phase change heat transfer process occurring in many industrial applications, such as in steam power plants, refrigeration plants etc.
    • Thus this is one of the important heat transfer process as present in mechanical and chemical engineering applications.
    • The condensation of vapour on a surface is of two types: 1. Drop wise Condensation, 2. Film wise Condensation.
    • This setup is designed for determining heat transfer co-efficient of two types of condensation and for visualization of these processes.
    • It consists of a vertical frame. Condensation tubes are fitted inside compact glass cylinder.
    • Steam generator is fitted at the backside of the cylinder. Steam comes directly from generator to the cylinder.
    • Two valves are fitted to control flow rate of water in individual tubes
    • Digital Temperature Indicator monitors the temperatures.
    • Pressure gauge and Rotameter can observe steam pressure and cold water flow rates respectively
    • A Digital temperature Controller is provided for controlling the temperature of Steam
    • Water level indicator is provided in steam generator
    • Condensate is measured by a measuring cylinder

Learning Objectives/Experiments:

• • • To study the Film wise Drop wise condensation of steam on a vertical surface.
    • Visualization of condensation process in drop wise as well as film wise condition.

Technical Specifications:

• • • Steam Generator: 8 Ltrs. (Approx.) made of Stainless steel with 1.5 kW heater. Insulated with ceramic wool and cladded by aluminum foil
    • Pressure Gauge: Bourdon type
    • Copper tubes (2 Nos.): One with natural finish and other nickel polished
    • Diameter: 19 mm (Approx.)
    • Length: 170 mm (Approx.)
    • Water Flow measurement: Rotameter
    • Condensate Measurement: Measuring Cylinder Stopwatch
    • Control valves: one each for Steam, Cooling water Drain
    • The whole set-up is ingeniously designed and schematically arranged on a powder-coated rigid structure