Objective : To convert a 4 -cylinder GDI turbocharged engine in a FRM model, and to model a CI engine using FRM bulider using GT-Power with following specs : Bore : 102 mm, stroke : 115 mm, CR : 17 No of cylinder : 6 CI engine Twin Scroll Turbine GT Controller   FRM Modelling : Fast Running Engine Models are dynamic,…

1] Explaination of code for solving 2nd order ODE. 1. First we start the program with \'clear all\'\', \'close all\', clc,. 2. Then we provide the inputs such as length, damping coefficient, mass and acceleration due to gravity as mentioned in the problem statement. 3. Next we define the intial values for displacement…

Objective : To discretize the intake runner of a single cylinder DI engine and explore GEM3D with the tutorial of Intake manifold. Description : Discretization is the process of dividing a larger object into a smaller one and converting it into 1D, inorder to capture and the dynamics of the flow properly, which eventually…

Objective : 1.To use excel calculator to find out the effect of gradeablility on power of trucks. 2.To simulate and understand drive cycle in Simulink. 3. Model WOT(Wide Open Throttle) for GM EV1.   1. Hill climbing power required by fully loaded tata ultra truck to the half loaded one. Considering velocity of truck…

Objective : To simulate 2D flow over a channel, using converge, for three different mesh sizes, 0.0002m,0.00015m,0.00012m, simulate the geometry using CYGWIN, and post process it using paraview. Methodology : 1. Pre-processing: Geometry clean up, assigning boundaries, and case setup is performed in Converge. 2.Simulation…

Objective :  Doing thermodynamic analysis for tractor engine using GT-Power for use in India with following targets : 1. Output Power - 75 HP 2. BSFC targets - min 210 g/kWh and max 225 g/kWh Introduction : Tractors in India is a major industry and significant contributor to its agriculture output gains. In 1947,…

Objective : Simulating Electric Vehicles for Range, gradebility, performing parametric study and optimizing cs variables using ADVISOR tool in matlab. Advisor (Advanced Vehicle Simulator):   ADVISOR, NREL’s ADvanced VehIcle SimulatOR, is a set of model, data, and script text files for use with Matlab and Simulink. …

Objective : 1.To simulate 1D single cylinder SI engine at 1800 rpm and list the following Air flow rate BMEP BSFC In-cylinder pressure 2. To calibrate 1D single cylinder SI engine to increase the power output by 10% without increasing BSFC. Introduction : A spark-ignition engine (SI engine) is an internal combustion…

Objective : To perform a steady-state simulation of flow across a throttle body in a channel  using Converge CFD and  post-process the simulation  using Paraview.   Geometry set-up  : The working fluid is atmospheric air. The inlet of the elbow is subjected to a total pressure of 1.5 bar and the…

Objective : To simulate any four-cylinder GDI engine in GT-Power and compare it's result with the actual outputs of that engine. Introduction : Gasoline Direct Injection : GDI or, Gasoline Direct Injection is a type of fuel injection used by many modern vehicles. Traditional multi-point fuel injection injects fuel into…

Objective : To understand, mapped and dynamic models. To understand the factors affecting fuel flow in HEV model To simulate Wide Open Throttle (WOT) condition with and without grade and wind resistance. To simulate FTP75 drive cycle for pure electric vehicle and hybrid electric vehicle using Powertrain Blockset in Simulink.…

Objective : To model and analyse the aftertreatment system for an SI engine system using Gt-Power.   Description : -SI engine aftertreatment model : This example demonstrates modeling an SI engine combined with a detailed TWC in a secondary aftertreatment circuit. The original base model SI_4cyl_EGRController was…

Objective : To model and analyse the aftertreatment system for an SI engine system using Gt-Power.   Description : -SI engine aftertreatment model : This example demonstrates modeling an SI engine combined with a detailed TWC in a secondary aftertreatment circuit. The original base model SI_4cyl_EGRController was…

1. Objective: To explore GT Suite and simulate intercooler using the GT-Power and calculating Heat transfer and pressure drop across Charge Air Cooler 2. Description : GT-SUITE is the industry-leading simulation tool with capabilities and libraries aimed at a wide variety of applications and industries. It offers engineers…

Following is the matlab script for discharge of lead acid battery. function E_oc=open_circuit_voltage_LA(x,N) % Find the open circuit voltage of a lead acid % battery at any value of depth of discharge % The depth of discharge value must be between % 0 (fully charged) and 1.0 (flat). E_oc = (2.15 - ((2.15-2.00)*x)) * N;…

Objective : To compare SI and CI engine, comparing factors such as BSFC, Exhaust Temperature and Air fuel ratios and observe impact of MFB50(Mass fraction burnt = 50%) on the performance of CI engine. Spark Ignition Vs Compression Ignition (Theoretical) : Sr. No Parameters SI CI 1. Ignition mechanism Spark plug Self ignition…

Thermal management in Lithium Ion Battery packs : Introduction : Electric vehicles use large batteries to store energy. The energy flowing into the battery pack as it is charged either from regenerative braking or from the grid and discharged from the pack to power the vehicle and its accessories is measured by electrical…

Objective : Configuring a Lithium ion generic battery model in Simulink from a battery datasheet.   For the following study data sheet of BAK H18650CH cell has been used. Description : The Battery block implements a generic dynamic model that represents most popular types of rechargeable batteries. Charge…

Objective : To simulate flow over a backward facing step, observing the flow characterisitics such as pressure, velcoity, cell count and mass flow rate for different mesh sizes. Mesh sizes are as follows : Case 1 : dx = dy = dz = 2e-03, Case 2 : dx = dy = dz = 1.5e-03, Case 3 : dx = dy = dz = 1.2e-03. Principles :                              …

Objective:   To understand the turbocharging in IC engines and modelling of VGT turbocharger configuration in GT-Power. Turbocharging : A turbocharger, or turbo, is a gas compressor. It is used to force air into an IC engine. A turbocharger is a form of forced induction. It increases the amount of air entering…

Curve fitting is the process of constructing a curve, or mathematical function, that has the best fit to a series of data points, possibly subject to constraints. Curve fitting can involve either interpolation where an exact fit to the data is required, or smoothing in which a "smooth" function is constructed that…

  Objective : Understanding types of emissions, control startegies and aftertreatment modelling in SI and CI engines.   Pollutants in IC engines : 1. CO : Carbon monoxide (CO) is a colorless, odorless, and tasteless flammable gas that is slightly less dense than air. It is toxic to animals that use HB as…

Objective : To optimize parameters such as NO & BSFC for a 4-cylinder diesel engine using optimization tool in GT-Power wer. Description : Optimization is the process of maximizing or minimizing a model's output(s) (responses) by systematically changing one or more input variables (factors). An optimizer is an automated…

Objective : To design a 250W Lithium Ion battery pack for an e-cycle.   Design calculations : Mechanical Design: The application selected for the use of battery pack is an e-cycle. According to ARAI, the max power transmitted from the controller to the motor should be 250W incase of low speed electric cycles. Considering…

Objective : To study the behavior of EV battery cooling system under three conditions : FTP75 drivecycle Continuous constant current charge cycle Pulse charging current cycle Description : This study shows an Electric Vehicle (EV) battery cooling system. The battery packs are located on top of a cold plate which consists…

1. Speed Control of DC motor using BJT H-Bridge. The Bipolar Junction Transistor (BJT) when used for power switching applications, operates as an IGBT. When it is conducting (BJT operating in the saturated region), a forward voltage Vf is developed between collector and emitter (in the range of 1 V). Therefore, the IGBT…

1. For a defined driving cycle, calculate the energy required for braking. Energy Required for braking is the energy consumed during the braking of a vehicle, during braking, the velocity of a vehicle falls from high values to lower values. The energy is calculated by the difference of nal velocity i.e the velocity…

POWERTRAIN OF AIRCRAFT 1.Weights of Airplanes MTOW = Maximum take-off weight, MLW = Maximum landing weight, TOR = Take-off run (SL, ISA+15°, MTOW), LR = Landing run (SL, ISA+15°, MLW) Type MTOW [kg] MLW [tons] TOR [m] LR [m] ICAO category FAA category Antonov An-225 640,000 591.7 3500   Heavy Super…