AIM Write a program that solves the ODE for equation of motion of a simple pendulum with damping.  OBJECTIVE To understand the transient behavior of various system using matlab, example “equation of motion of a simple pendulum with damping.”  Simulate the motion between 0-20 sec, for angular displacement=0,angular…

AIM Write code to fit a linear and cubic polynomial for the Cp data.    OBJECTIVE Write code to fit a linear and cubic polynomial for the Cp data.  To understand various techniques to improve curve fitting.   BODY OF THE CONTENT Definition of curve fitting:- Curve fitting is the process of constructing…

AIM NASA  came up with polynomials that can be used to evaluate thermodynamic properties such as Cp, H and S. They have also documented the co-efficients that are required to evaluate these polynomials for 1000+ species.   OBJECTIVE Write a function that extracts the 14 co-efficients and calculates the enthalpy,…

Introduction:- Genetic Algorithm Genetic Algorithm (GA) is a search-based optimization technique based on the principles of Genetics and Natural Selection. Optimization refers to finding the values of inputs in such a way that we get the “best” output values The basic structure of a GA is as follows −…

Electric Rikshaw:- Electric rickshaws (also known as electric tuk-tuks or e-rickshaws or auto) have been becoming more popular in some cities since 2008 as an alternative to auto rickshaws and pulled rickshaws because of their low fuel cost, and less human effort compared to pulled rickshaws. They are being widely accepted…

Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse. Ans:- Chopper:- The DC motor is used in many industrial applications requiring variable speed and load characteristics due…

For a defined driving cycle, calculate the energy required for braking. Ans:- In electric vehicle is require by vehicle for acceleration as well as deacceleration of vehicle also. As we require to stop vehicle in stipulated time, we cannot allow vehicle to stop as per its inertia value, for stopping vehicle we require…

Search and list out the total weight of various types of aircrafts. Ans:- An aircraft's gross weight is limited by several weight restrictions in order to avoid overloading its structure or to avoid unacceptable performance or handling qualities while in operation. Aircraft gross weight limits are established during an…

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Aim:- Simulate generic battery model charge discharge using UDDS data. Ans:- A driving cycle is a series of data points representing the speed of a vehicle versus time. Driving cycles are produced by different countries and organizations to assess the performance of vehicles in various ways, as for instance fuel consumption,…

Make a MATLAB model of fuel cell powered electric vehicle and comment on results Ans:- Fuel Cell:- A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. The first fuel cells were invented…

What is coulomb counting? How BMS implements coulomb counting for SOC estimation? Ans:- SOC(State of charge):- The SOC is defined as the available capacity expressed as a percentage of some reference, sometimes its rated capacity but more likely its current (i.e. at the latest charge-discharge cycle) capacity but this…

How weakest cell limits the usable capacity of the battery pack? What is the solution? Ans:- The battery pack consist of different cells connected in series and parallel as the requirement. But although the all cell are identical, made from same manufacturer with same specification there is always some variation in SOC…

1. Aim:- Prepare a report summarizing thermal management techniques for electric car battery pack. 2. Introduction:- Electric vehicle and hybrid electric vehicle (EV/HEV) technology, as a green substitute for conventional combustion vehicles, has attracted a significant amount of attention globally and are quickly replacing…

Aim:- For a 10 cell series lithium ion battery model, simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB. Ans:- Lithium iron Battery:- A lithium-ion battery or Li-ion battery is a type of rechargeable battery. Lithium-ion batteries are commonly…

Q) Design of DC-DC converter   Ans:- DC-DC converters have several applications in electrical industry, they can be employed for varied DC voltage usages and stabilization or the control of DC voltage of a battery or it can be a component of a complex converter to control the intermediate or output voltages. Due to…