Week 10 Thermal Management

Title : To develop and compare, coulomb counting algorithm and extended kalman filter algorithm for samsung 18650 20r lithium-ion cell through DST experimental data and, To plot and regression data fit of SOC-OCV curve through low current experiment data for use in algorithm in MATLAB Objectives : 1. To plot and regression…

In this project, we will analyze the effect of temperature, charge and discharge rate on life cycle performance of a lithium ion cell. For, the purpose of analysis of a 10 series cell battery pack, we can use 3.3V 6000mAh LFP type lithium-ion cell which is a popular choice in India among low power electric vehicles. First,…

The battery pack to be constructed is of 18 KWh. This kind of pack is generally used in small range electric car. We can take the example of Tata Tigor EV to make assumptions, since it has battery pack 21.5 KWh, which is nearly the same specification. Tata Tigor EV is driven by 3 phase 72 V induction motor. Thus, we can…

The thermal management system for an electric battery back can be of following types : Air Cooling Fin Cooling Phase Change Material Cooling Direct Liquid Cooling Indirect Liquid Cooling Discussing each cooling type point wise: 1. Air Cooling :  It uses the principle of heat convection for heat transfer through air.…

We can understood this through an illustration. Let's assume a connection of cells with weakest cell as labelled below in the electrical coonection diagram of a battery pack Now, since it is the weakest cell it will reach cut-off voltage earliest. Thus, as soon as it reaches cut-off voltage , no more current can flow in…

In coulomb counting method, we continuously count the charge which has left or entered the cell to keep track of remaining charge. This is done through instantaneous measurements of current and time. It can be understood by analogy of water entering/leaving a tank. If water enters/leaves tank at the speed of y cu. metre/second…

Discussion of Model : Steps : For this model, I started with a blank model in simulink. Then, I imported UDDS excel data in the command window through 'Import' button in matlab variable workspace of home window. Then, I selected that excel file and selected option of impart as 'numeric matrix'. The, UDDS data…

Model Screenshot : Discussion of Model and Steps : As in the challenge, we have to simulate generic battery model using UDDS data which gives us reference speed, but the problem in this is that UDDS is a drive cycle which is used for testing of vehicles (emissions, efficiency, etc....) and thus this data is speed vs time.…

Main Code -    clear all close all clc % USER INPUTS disp(' RANKINE CYCLE SIMULATOR'); P1 = input('\nEnter the pressure at the turbine inlet(in bar):'); T1 = input('\nEnter the temperature at the turbine inlet(in Degree Celsius):'); P2 = input('\nEnter the pressure at the condenser(in bar):'); % Initial…

  Title – Designing Metal Bracket-II using NX Objective- To design and create sheet Metal Bracket-II using NX Introduction – NX sheet metal environment can be used to create sheet metal designs with all the manufacturing considerations. Hence, NX is here used to design and create a complex sheet metal…

Main Code -  clear all close all clc % reading the file NASA_data = fopen(\'THERMO.dat\',\'r\'); fgetl(NASA_data); global_temp_range_string = fgetl(NASA_data); global_temp_range_string_split = strsplit(global_temp_range_string,\' \'); global_temp_range_lower_limit = str2num(global_temp_range_string_split{2}); global_temp_range_mid_limit…

Please note that this code works fine with MATLAB 2013 but for later versions it may need changes in syntax Stalagmite function Code -  function f = negative_stalagmite(input) y = input(1); x = input(2); f1x = (sin((5.1*pi*x) + 0.5)).^6; f1y = (sin((5.1*pi*y) + 0.5)).^6; f2x = exp(-4*log(2)*(((x-0.0667).^2)/0.64));…

Link for Youtube Video - https://youtu.be/2KTN3OIWbbY Function Code -  function [dtheta_dt] = ode_func(t,theta,b,g,l,m) theta1 = theta(1); theta2 = theta(2); dtheta1_dt = theta2; dtheta2_dt = -(b/m)*theta2 - (g/l)*sin(theta1); dtheta_dt = [dtheta1_dt; dtheta2_dt]; end Main Code - clear all close all clc % inputs b…

Title - Otto Cycle Plot in MATLAB Objectives - 1. To plot PV diagram of otto cycle in MATLAB 2. To determine thermal efficiency of cycle in MATLAB 3. To learn application of MATLAB for PV plots Function Code -  function [V] = engine_kinematics(bore,stroke,con_rod,cr,start_crank,end_crank) a = stroke/2; R = con_rod/a;…

Link for CAD Model - https://1drv.ms/u/s!Arp4zAAaQAwMjrkbw_9dif-vGGdxTg?e=8eVEGf Title – Designing odd shaped enclosure using NX Objective- To design and create odd shaped enclosure using NX Introduction – NX sheet metal environment can be used to create sheet metal designs with all the manufacturing considerations.…

Title – Designing odd shaped enclosure using NX Objective- To design and create odd shaped enclosure using NX Introduction – NX sheet metal environment can be used to create sheet metal designs with all the manufacturing considerations. Hence, NX is here used to design and create an odd shaped enclosure which…

Project Title - To design and model american chopper in solidworks Objectives - 1. To sketch and model different parts of american chopper in solidworks 2. To understand designing of chopper 3. To understand solidworks basics through chopper designing Parts -     

  Title – To Model and Design sunseeker predator yacht Objective- To model and design sunseeker predator yacht in solidworks To understand surface modelling through yacht modelling To understand modelling complexities involved in designing yacht Parts – Following parts were created in solidworks - Hull…

  Title – To Model and Design American chopper in solidworks Objective- To model American chopper in solidworks To understand chopper designing in solidworks To understand basics of soliworks designing. Parts – Following parts were created in solidworks - Chassis –   Chassis gives strength to…

  Title – To Model and Design Low Speed Electric Two-Wheeler Objective- To study the existing designs of low speed electric two-wheeler To study the parts of low speed electric two-wheeler To design the parts of low speed electric two-wheeler To create an assembly of electric two-wheeler from the designed parts…

  Title – Designing sheet metal box assembly using NX Objective- To design and create sheet metal box using NX Introduction – NX sheet metal environment can be used to create sheet metal designs with all the manufacturing considerations. Hence, NX is here used to design and create a sheet metal box which…

  Title – Designing Sheet metal casing using NX Objective- To design and create sheet metal casing using NX Introduction – NX sheet metal environment can be used to create sheet metal designs with all the manufacturing considerations. Hence, NX is here used to design and create a sheet metal casing which…

Gas Tank and Assembly Chopper. Learnt about assembly and surfaces and it\'s various options. Drive Link to folder - https://1drv.ms/u/s!Arp4zAAaQAwMjeQNtrFE4oOdtYrbyQ?e=NtHO8j Please download all the folders and navigate to week 7 and then assembly file is there. For gas tank navigate to week 6. I have attatched zip folder…

Designed chassis and engine using existing tools knowledge as well as learned about 3D curves and it\'s different options. Drive Link - https://1drv.ms/u/s!Arp4zAAaQAwMjecfF0lVwoICKYpc3Q?e=r6yVhz Please note that since it is a file with automatic updation, changes done in engine and chassis during assembly will be reflected…

Drive Link - https://1drv.ms/u/s!Arp4zAAaQAwMjecQHyPKySLHCGso6Q?e=qPaY4O

Files Link - https://1drv.ms/u/s!Arp4zAAaQAwMjeReowHSagYpR6zLZw?e=KQc0yb New Tools Learned - 1. Curve driven pattern 2. Convert Entities 3. Linear Pattern 4. Mirror 5. Slot 6. Chamfer 7. Dome 8. Combine

One Drive Link - https://1drv.ms/u/s!Arp4zAAaQAwMjeQNtrFE4oOdtYrbyQ?e=YNB4ZB   Tools Used in 1st week challenge -   Line Spline Extrude Revolve Extend Trim Dynamic Revolve Entities Fillet Shell