Drop Wise and Film Wise Condensation Apparatus

Drop Wise and Film Wise Condensation Apparatus

• 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

Experimentation:

• 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.

Utilities Required:

• Water supply 5 lit/min (approx.)
• Electricity Supply : 1 Phase, 220 V AC, 1.5 kW.
• Table for set-up support.

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
• Digital Temp. Controller: 0-199.90C (For Steam Generator)
• Digital Temp. Indicator: 0-199.90C, with multi-channel switch
• Temperature Sensors: RTD PT-100 type
• Instruction Manual: An ENGLISH instruction manual will be provided along with the Apparatus
• The whole set-up is well designed and arranged on a Powder Coated structure