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 demonstrates super conductivity of heat pipe as compared to copper pipe as good conductor of heat and to stainless steel pipe as same material of construction. The unit provides Heat pipe, copper pipe & stainless steel pipe. All the pipes are heated at one end & water tank at other end. To find out isothermal operation of heat pipe as compared to other conductors by using thermocouples.

The unit is example of an unsteady state problem of interest is the heat transfer of a solid body being quenched in a fluid, the apparatus consist of a small cylinder, heated by a hot bath till steady state reaches then quenched in air or water bath. So, temp of cylinder is a function of time, heating and cooling of cylinder is unsteady

The Unit is to determine the specific heat of air at different temperatures air quantity and heater input can be varied. A blower delivers the required quantity air; air passing through the pipe, heated by heater, temp of entering and leaving test section are measured by thermocouples. By knowing heater input and mass flow of air, specific heat of air at constant pressure can be calculated. The test section is well insulated to minimize the heat losses.

To unit is to determine the heat transfer rate, LMTD, heat transfer coefficient and effectiveness of heat exchanger. Unit consists of a copper tube inside a G I pipe, hot water from geyser flows through the inner tube and cold water flows through outer tubes. Hot water flows in one direction, cold water can be changed parallel or counter. temperature and flow rate of water measured

The unit is to determine of heat exchanger, heat transfer coefficient, LMTD and effectiveness of the exchanger. Unit consists of a G I pipe, copper pipe with longitudinal fins over the periphery is fitted inside. Hot fluid is water obtained from geyser. Flows through the copper pipe. Cold fluid is air. flows over the fins. Direction of hot water is fixed, direction of air can be changed. Various measurement are provided

The unit is to determine thermal conductivity of metal bar. A copper bar, heated at one end, heat sink at other end, teat section of bar is properly insulated & thermocouples are attached for temperature. Heat conducted through the section of bar is measured by heat collection in water-cooled heat sink. Panel with necessary measuring instruments that is voltmeter, Ammeter, T. Indicator.

The unit is to determine thermal conductivity of insulating powder by sphere in sphere method. A copper sphere in which a mica heater is fixed. the sphere is surrounded by another bigger copper sphere and between the two sphere the test insulating powder is filled. Heat of the heater radically flows outwards in all directions through powder. Temp. Across the powder are measured. Panel with necessary measuring instruments that is voltmeter, Ammeter , T. Indicator.

The unit is to study Thermal conductivity of Liquid, an electrical heater sandwiched between aluminum plates. Heat loss from hot plate is prevented by using two guard heaters and heat of hot plate is made to flow through specimen. cold plate on opposite face of liquid removes heat from liquid by circulation of water. Input to heaters can varied & measured. Digital temp Indicator to measure temperature. Panel with necessary measuring instruments that is voltmeter, Ammeter , T. Indicator.