NUTL Mechanical Engineering Labs

The Mechanical Engineering Department comprises eleven 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 to use of tools & 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. Therefore, students will 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