NUTL Mechanical Engineering Labs

The Mechanical Engineering Department comprises nine labs. The major equipment include Aerodynamic Subsonic Low Speed Wind Tunnel with Data Acquisition System, Axial Flow Gas Turbine, Refrigeration Cycle Demonstration Unit with Data Acquisition System, Heat Exchangers, Whirling of Shaft Apparatus, Hydraulic and Hydrostatic Benches, Vertical Machining Centre, CNC Lathe, Shearing and Milling Machines etc. The labs are summarized below:-

Heat Transfer & Thermodynamics Lab

The objective of heat transfer lab is to provide fundamental knowledge about heat transfer modes and hands on experience on various types of equipment such as heat transfer through conduction, free and forced convection mechanism and radiation heat transfer. Different type of heat exchangers like plate, concentric tube, shell and tube and cross flow heat exchangers are available to provide students with better understanding and demonstration on different modes of heat transfer. The objective of thermodynamics lab is to introduce students to the physical application of fundamental thermodynamic concepts and principles which are being used in the engineering complex problems. Thermodynamics lab introduces students to the different principles of thermodynamics through experimental work. First law of thermodynamics, gas laws, phase change processes, energy balance using first law, efficiency and entropy concepts are demonstrated through lab experiments.

The designed experiments in the lab reinforce the engineering principles taught in the lecture classes and help students to understand these principles more thoroughly.

Equipment

Linear Heat Conduction Module with DAQ
Radial Heat Conduction Module with DAQ
Free and Forced Convection Module with DAQ
Extended Surface Heat Transfer Module with DAQ
Unsteady State Heat Transfer Module with DAQ
Radiation Heat Transfer Module with DAQ
Temperature Measuring Apparatus
Refrigeration Cycle Demonstration Unit with DAQ
Heat pump for heating and cooling operation
Refrigeration system with two stage compression
Film and drop wise condensation unit
Computer Controlled axial flow gas turbine/jet engine
Heat Exchanger Base Service Unit
Concentric tube heat exchanger
Plate heat exchanger
Shell and tube heat exchanger apparatus
Cross Flow heat exchanger
Jacketed Vessel Heat Exchanger
Coil Vessel Heat Exchanger
Tubular Heat Exchanger
Conductivity of Liquid and Gases
Vapor Compression Refrigeration System
Semi-Hermetic Refrigerant Compressor
Hermetic Refrigerant Compressor
Open Refrigerants Compressor, two cylinders
Thermostatic Expansion Valve

Key Capabilities

Analyze the concept of conduction in bars
Calculation of the thermal conductivity “k” of different materials
Calculation of efficiency of forced convection process in flat plate, pinned and finned heat exchangers.
Analyze the effects of cross section shape in the heat transfer process from a fin
Demonstration of inverse of the distance square law for the radiation
Analyze the thickness effects in the absorption phenomena in Radiative Heat Transfer
Investigation on effects of evaporation and condensation temperatures in the cooling rate and in the heat transfer at the condenser
Practical handling of various temperature measuring instruments
Analyze the temperature profile of water with time
Use of manometers for measurement of pressure
Investigate the quality of refrigerant entering in compressor of refrigeration unit
Determination of Coefficient of performance of refrigerator
Estimation of isentropic efficiency of compressor
Efficiency calculation of Brayton cycle in axial flow gas turbine
Demonstration of energy balance applying first law of thermodynamics
Study of various type of heat exchangers
Understanding of how the refrigerator compressor works.
Practical knowledge of Thermostatic Expansion Valve.
Study and Demonstration of Refrigerant Cycle.

Fluid Mechanics Lab

The main objective of Fluid Mechanics Lab is to improve engineering skills of the students and to demonstrate them the basic principles of Fluid Mechanics. Experimental setups like Impact of jet, Bernoulli’s theorem, Fluid friction and energy losses in pipes, Hydrostatic bench and Osborne Reynolds apparatus are available to the students where they can perform experiments to verify the properties of fluids and hydrostatic principles. In addition to that a subsonic wind tunnel is also available for calculation of pressure and velocity profiles, flow patterns, lift and drag force analysis and boundary layer studies.

Equipment

Hydraulic Bench with data acquisition system
Impact of Jet Apparatus
Fluid Friction in Pipes Apparatus
Energy Losses in Pipes
Orifice Discharge Apparatus
Horizontal Osborne-Reynolds Apparatus
Hydrostatic bench with DAS
Flow over Weirs Apparatus.
Dead Weight Calibration Apparatus.
Hydrostatic Pressure Apparatus.
Metacentric Height Calculation Apparatus.
Journal Bearings Apparatus
Hydrogen Bubble apparatus
Low Speed Aerodynamics Wind Tunnel (Test Section 1X1 Feet)

Key Capabilities

Analysis of water jet force on flat and curved surfaces
Venturi tube section analysis
Demonstration of Bernoulli Theorem
Investigation of laminar and turbulent flow
Determination of ﬂuid density and speciﬁc gravity
Capillarity in tubes and between plates
Measurement of viscosity by falling sphere method
Demonstration of Pascal’s law
Veriﬁcation of Archimedes’ principle
Stability of a ﬂoating body and determination of metacentric height
Operation and calibration of a Bourdon pressure gauge
Visualization of Parabolic velocity profile
Determination of pressure drops in different flow pipes
Investigation of lift and drag parameters at wind tunnel
Understand the internal working of various equipment using cutaway models
Study the working of the Francis Turbine

Mechanics of Materials/Engineering Mechanics Lab

The objective of the Mechanics of Materials lab is to analyze the mechanical properties through testing and to validate the basic principles in the area of structural analysis. The focus is to enable the students in use of tools and equipment and to acquaint students with different experimental testing techniques and data acquisition systems. Experiments are performed to measure the properties and relative behavior of the materials under different loading conditions such as tensile strength, hardness, buckling of bars, deflection of beams, torsion of bars and strain measurement with strain gauges and rosettes.

Equipment

Buckling behavior of Bars
Combined Bending and Torsion Loading
Stress and Strain analysis on a thin walled cylinder
Torsion Testing Machine
Moment of Inertia
Continuous and Indeterminate Beam Apparatus
Deformation of Straight Beams
Gauge Factor Measurement Apparatus of Strain Gauges
Creep Testing Machine
Fatigue testing machine
Spring Stiffness Testing Apparatus
Impact Testing Machine
Hardness Tester
Hertzman Contact Apparatus
Curved Bar Apparatus
Universal Testing Machine
Fundamental of Statics
General Engineering Mechanics Lab
Deformation of Trusses

Key Capabilities

Estimation of buckling force and deformation in bars with different materials
Investigation of unsymmetrical bending in beams
Calculation of shear stress and twisting angle induced in a bar due to torsion
Estimation and analysis of strain in a material under stress with application of strain gauges
Investigation of deflection phenomenon
Analysis of stress and strain in a thin-walled cylinder
Study the phenomena of creep
Study the phenomena of fatigue
Find the stiffness of various springs
Study different methods to find the hardness of material
Study the deformation in X and Y direction when force is applied
Study tensile, compressive and shear stress using UTM and find the elastic modulus of material.

Measurement and Instrumentation/Dynamics and Controls Lab

The objective of this Lab is to enable the students to understand the use of sensors, transducers and measuring instruments, comprehensively. Working principles of input sensors, output actuators, signal conditioning circuits, and display devices are demonstrated to students through a wide range of hands-on practical activities. This lab has been equipped with the latest instruments and is one of the very modern and latest labs. Calibration of instruments, measurements of quantities, investigation and analysis of the measured quantities are in scope of this lab.

Equipment

Transducers instrumentation and control teaching set with DAQ
Hydraulics Trainer
Robotics Trainer
Modular Servo Workshop
Process control and instrumentation apparatus
Industrial Control Trainer
PLC Control Teaching set
Temperature Test Module
Pressure Test Module
Light Test Module
Pneumatic Test Module
Tachometer Test Module

Key Capabilities

To understand the basic principle and functioning of sensors used to measure temperature, sound, position, rotational speed, direction, humidity, force, strain and light intensity measurements
To demonstrate the working principles of instruments used for process control system
To understand the measurement and control of temperature, level, pressure and flow in a process
To perform ladder logic operations on a PLC
Design and development of engineering systems using sensors, actuators and control systems
To study the mechanism of Tachometer.
Study the working of automatic temperature control
Understand how to measure intensity of light.

Internal Combustion Engines / Power Plants Lab

The objective of I.C Engine lab is to make student understand how important I.C engine are in our daily life. Main objective of this lab is to give student understanding about various type of I.C engines, new technology and accessories required to get maximum power from the internal combustion engine. This held helps student to understand the working mechanism of clutch, piston, steering mechanism and spark plugs.

Equipment

Tracked Tractor Transmission Model
Working Model of Hybrid Petrol Engine
Engine Test bed for Petrol and Diesel Engine
VVT-i and I-vtec engine model with transmission
Steering Mechanism Apparats
Shock Absorber Mechanism
Engine Combustion Visualization
Chassis Layout
Screw Compressor
Hydraulic Brake Training Bench
Sand Blasting Unit for Spark plugs
Peter Engine
Radial Engine Model
Rotary Engine Model

Key Capabilities

Understand the working of clutch and gear
Understand the working of hybrid engine
Study the effect of increasing rpms on torque and fuel efficiency
Study the modern technologies in I.C engines
Understand the turning mechanism of car
Study the older engines
Understand the how I.C engine is used in cars with accessories
Study functions of spark plugs
Understand the mechanism of shock absorber
Why leaf spring is used.

Manufacturing Processes / Workshop Technology Lab

The objective of the lab is to perform experiments which are related to mechanics of machine subject to understand the behavior of different mechanical equipment which student’s study in theory. The lab facilitates the students with the following equipment

Equipment

CNC Milling Machine
Lathe Manual Bench Top
Shaper Machine
Portable Hyd. Pipe Bending Machine with Bending Die Set
MIG Welding
TIG Welding
CNC Lathe Machine
Vertical Machining Center
Combo Lathe
Universal Milling Machine
Electric Welding Plant
Electrical Wiring Trainer
Sheet Bending Machine
Shearing Machine
Tool and Cutter Grinder
Lathe Manual 6ft
Radial Drilling Machine

Key Capabilities

Understanding and working of milling machine
Understand the working shaper machine
Understand the Working of TIG and MIG Welding
Study difference between TIG and MIG welding
Understand the wiring process
Using and drilling holes using upright drill machine
Understand the working of Radial Drilling Machine
Understand the working of Lathe Machine
Understand the working of Shearing Machine
Understand the working of Sheet Bending Machine

Mechanisms and Mechanical Vibrations Lab

The objective of this lab is to supplement the processes used in manufacturing of different parts in industry.

Equipment

Vibration Trainer with DAQ
Computerized Vibration Analyzer
Static and Dynamic Balancing Machine
Torsional Oscillations Apparatus
Whirling of Shafts
Gyroscope
Governor Apparatus
Journal Bearings Apparatus
Determination of Gear Efficiency
Cam and Follower with DAQ
Whitworth Quick Return Mechanism
Winch Mechanism
Belt Friction Apparatus
Hooks Universal Joint
Simple Gear System
Acceleration and Static Test Stand

Key Capabilities

Study and understand the basic concept of vibrations
To understand the concept of static and dynamics balancing
Study the whirling of shafts
Study types and working of governor
Gear System logistics and efficiency
Mechanism of cam and follower
Study the applications of winch mechanism
Acceleration and Static test of shafts