Laboratory Equipment

BALANCING OF SEVERAL MASSES ROTATING IN A SINGLE PLANE BY GRAPHICAL METHOD.

TECHNICAL DETAILS

Drive Motor FHP Motor, variable speed, with speed controller.

Balancing weight : 4 Nos. of Stainless Steel with different sized eccentric mass for varying unbalance.

Rotating Shaft Material Stainless Steel

The data acquisition system can be done by interfacing the set-up with computer using software.

Software allows the user to have control on data logging, printing the

stored data, preparing spread sheets in Excel etc..

The most common types of continuous vacuum filter are the rotary drum filter. A horizontal drum with a slotted face turns at less than 2 RPM in an agitated slurry trough. A filter medium, such as canvas, covers the face of drum, which is partly submerged in the liquid. Under the slotted cylindrical face of the main drum is a second, smaller drum with a solid surface. Between the two drums are radial partitions dividing the annular space into separate compartments, each connected by an internal pipe to one hole in the rotating plate of the rotary valve Vacuum and air are alternately applied to each compartment as the drum rotates.The set-up consists of stainless steel drum moving in gunmetal brackets and is divided in 6 compartments, covered by a Stainless Steel mesh. A canvas filter is used for filtration. The whole assembly is fitted with a SS trough in which a agitator is provided. To make the unit a self-contained a slurry mixing and feed arrangement, receiver tanks, vacuum pump, control panel are provided.

The apparatus is designed to determine thermal conductivity of different liquids. The apparatus consists of a heater. The heater heats a thin layer of liquid. A cooling plate removes heat through liquid layer, ensuring unidirectional heat flow. Temperature is measured across the liquid layer and complete assembly is properly insulated. A proper arrangement for changing the liquids is provided. The whole assembly is kept in a chamber.

Jaw Crusher is designed to speed up the crushing of aggregates, ores, minerals, coke, chemicals and others similar materials. It is compact and of rugged construction for general laboratory or small pilot plant operations. The set-up contains two Jaws of hard steel with one Jaw stationary and other moving. The movable jaw produces blows for every revolution reducing over sizing to a minimum. A combination of forward and downward strokes with a rocking action exerts pressure on the coarser materials yet permits the finished materials to pass through the jaws. A hopper is provided at the top for feeding material. The smooth jaws ensure a uniform product and easy cleaning is possible. The opening of the Jaw is adjustable. The motor is coupled to the machine through Triple `V' belt drive.

This apparatus is designed to determine the thermal conductivity of insulating powder. The apparatus consists of two thin walled concentric copper spheres. Inner sphere houses Nichrome Wire heater. Insulating powder is filled between the two spheres. Heat flows radically outwards. Temperature sensors at proper positions are fitted to measure surface temperatures of spheres. Heat input to the heater is given through a variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, data can be obtained. 

In most industrial processes including reactors, heat is to be added or extracted to control the process. The addition and removal of heat is done by passing steam or water in a jacket fitted to the outside of the vessel or passing steam or cold water in helical coil inside the vessel. For effective heat transfer and even distribution of heat, the liquid inside is continuously agitated. The present set-up offers us a comparative study of Jacket & Helical coil, which can be operated simultaneously. It is a stainless steel jacketed vessel with helical coil of copper is fitted inside. A variable speed stirrer is fitted in the vessel. Variation in temperature of inside water is measured and is noted. Set-up is fitted with steam traps for condensate collection. Flow rate of water can be controlled and measured using valve and Rota meter. Temperature of inlet and outlet of both hot & cold fluids are measured by temperature sensors. 

The set up consists of a two sided clear fabrication section .Water is fed through a nozzle and discharged vertically to strike a target carried on a stem which extends through the cover. A weight carrier is mounted on the upper end of the stem. The dead weight of the moving parts is counter balanced by a compression spring. The vertical force exerted on the target plate is measured by adding the weights supplied to the weight pan until the mark on the weight pan corresponds with the level gauge .A total of two targets are provided, a flat plate and a hemispherical cup. 

The unit enables the students to study the Basic Principals of ice plant cycle within a short period. The test rig is designed for the study of thermodynamics of vapour Compression refrigeration cycle by way of demonstration and experimentation. It has a facility to measure various parameters for experimentation. Ice cans are kept in liquid tank, which is cooled by the refrigerant evaporator. As conventional ice plants take 12-24 hours to complete the cycle, this ice plant is specially designed to demonstrate process of ice formation to be complete within period of 4 hours and hence it is most suitable for laboratory use.

The screw conveyor is one of the oldest and most versatile conveyor types. These are compact, requiring little headroom and no return mechanism. The material is also mixed as it passes through the conveyor. Screw or helical flight conveyors consists of a steel shaft having a spiral or helical fin fastened to the shaft and rotating in a trough without touching the trough, so that the helical fin pushes the material along the trough. The shaft is driven by a motor coupled with a reduction gearbox. 

The setup studies behavior of multi capacity process when connected in non interaction mode. It consists of supply tank, pump for water circulation, Rota meter for flow measurement, two independent process tanks with scales connected in non-interacting mode. The components are assembled on frame to form tabletop set-up.

The set up consists of a 1/2” bend and elbow, sudden expansion & sudden contraction fitting from 15 mm to 25 mm, ball valve and gate valve. Pressure tapings are provided at in let and outlet of these fitting sunder test. A differential manometer fitted in the line gives pressure loss of individual fittings. The set-up can be connected to Hydraulic Bench by flexible pipe line.

The present set-up is designed to visualize the ideal flow around immersed body. It consists of a flow table in which flow of water is circulated in between two transparent sheets with a small gap between them. Water is supplied to the table and a colored dye is injected in the inlet of flow at different location. Water from the sump tank is pumped by a centrifugal pump to a calming section for table and after passing through transparent sheet it goes to sump tank. By-pass and flow control valves are provided to regulate the flow.Flow is made laminar by operating inlet control valve for water and it is visualized due to transparent sheet and colour. A small capacity dye tank will be provided for the flow of dye in fluid inlet stream. Any obstacle can be placed between the sheets and change in flow pattern can be visualized. Obstacles of different types will be supplied with the apparatus. 

Technical Description: Shell & Tube type condensers are widely used in various industries. The present set-up offers a comparative study of Vertical & Horizontal condenser, which can be operated one at a time. Condenser consists of Stainless steel shell, with stainless steel tubes. Cold fluid flows through inside the tubes and steam flows through the shell. Valves are provided to control the flow rates of cold fluids. Flow rate of cold water is measured using a Rota meter. Shell is fitted with steam traps from where condensate is collected in measuring cylinder. Temperature of inlet and outlet of both hot & cold fluids are measured by temperature sensors.

The setup is designed to study dynamic response of single and multi capacity processes when connected in interacting and non-interacting mode. It is combined unit to study 1) Single capacity process. 2) Non interacting process and 3) Interacting process. The observed step response of the tank level in different mode can be compared with mathematically predicted response. Setup consists of supply tank, pump for water circulation, Rotameter for flow measurement, process tanks with scales, which can be connected to interacting and non-interacting mode. The components are assembled on frame to form tabletop set-up.

The setup consists of a brass tube fitted in a rectangular duct in a vertical position. The duct is open at the top and bottom, and forms an enclosure that serves the purpose of undisturbed surrounding. One side of the duct is fitted with a transparent acrylic window for visualization. An electric heating element is kept in the vertical tube that in turns heats the tube surface. The heat is lost from the tube to the surrounding air by natural convection. The temperature of the vertical tube is measure by temperature sensors and displayed by a Digital Temperature Indicator with multi-channel switch. The heat input to the heater is measured by a Digital Ammeter and a Digital Voltmeter and is varied by a variac. The tube surface is polished to minimize the radiation losses. 

The set up consists of constant temperature Bath with heating element. This Heat source is controlled with the help of digital temp controlleratany preset valve. A thermocouple pocket is provided to insert the thermocouple in it. Three thermocouples i.e. CR/AL, Cu-constantan ,Fe-constantan and Digital mili volt meter area lso provided .All components are assembled on a base plate to forma table top set- up.

The present set-up is designed to calibrate and check the given pressure gauge (Bourdon Type).This unit consists of a precision ground plunger, which develops the required pressure by loading of weights. This pressure is transmitted to the pressure gauge by oil.

Ball Mills are horizontal rotating cylindrical steel chamber of half filled with steel balls. The size reduction is accomplished by the impact of balls as they fall back after being lifted by the baffles fitted in the rotating chamber.Ball Mill is fitted on a sturdy MS frame. Charging of balls and material is done by the means of opening provided in the chamber. The chamber is turning about the horizontal axis through a reduction gearbox drive through a ½ HP variable speed motor. Drive is provided to vary the RPM. A RPM indicator with proximity switch is provided in the set-up. A revolution counter is provided to find out the number of turns. Special arrangement is done to free the Ball Mill from reduction gearbox for charging and discharging the material.

This apparatus consists of a Flow channel. Channel is fabricated from transparent Toughened Glass and Stainless Steel together. The equipment is designed to study the various phenomenon of flow with the help of various types Of blocks, gates, weirs, and other many types of accessories (Optional). The channel section is transparent by which user can observe the various flow patterns of fluid in the channel and photographs can be taken. These glass panels are sealed with the stainless steel bed. This channel is floor mounted. Instrument rail is provided along the entire working length of the flume. A scale is provided along with the rail. A pointer gauge is provided to measure the depth of flow, that can move on the rail. At the inlet of the flume an inlet tank with stilling and smoothing device is provided for obtaining the excellent velocity profile in the test section. At the discharge side a gate is provided which have an adjustable height. This gate maintains the operating water levels for the flume. This flume is tilted using a jacking system which has one jack. An arrangement has been done to calculate the slop of channel. The flow channel is self-contained re-circulating unit provided with sump tank, centrifugal pump, and control valve. Water is circulated through the channel by centrifugal pump. The pump draws water from sump tank to inlet tank of flume and return back to sump after passing through the channel.