Microtech Engineering

The unit explains the Thermal conductivity and characteristics of lagging material, using three concentric pipes and a heater and two types of lagging materials are filled up. Thermocouples and dimmer state measures various temperatures and heat inputs.

The unit is to study visualization of two phase of liquid viz. boiling & condensation. Liquid R-11 in which a hot cylinder is immersed. Boiling of liquid, observed over heater surface upto nucleate boiling phase. Condenser coil at the top of cylinder. Vapor is condensed to liquid. Measurements- pressure of vapor-pressure gauge, water flow Rotameter, Control of heater surface temp. Dimmer & Liquid temp. -Thermometers. Control panel with necessary measuring instruments that is voltmeter, Ammeter, T. Indicator

The unit is to study the boiling heat transfer. A nichrome wire immersed in water and heated by passing current through it. input to nichrome wire, controlled by dimmer stat. Increasing wire input current increases & at critical heat flux the wire brakes. It is measured on meter. Magnifying glass and lamp to visualize natural connection and pool boiling and separate heater coil in water allows for various water temperature

The unit is to determine heat transfer rate, LMTD, heat transfer coefficients and effectiveness of heat exchanger. The unit consists cold and hot fluid obtained from geyser. Inlet and outlet connections are positioned to make the Exchanger counter flow type. Hot and cold fluid pass between alternate plates

The unit provides find out critical radius of insulation, ratio of thermal conductivity and outside heat transfer co-efficient. The unit consists of four G. I. pipes provided with plaster of Paris insulation on out side surface and heater inside, having separate input control. Input to heaters is measured by common voltmeter& ammeter.