design portfolio sarvesh satam

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Design Portfolio Sarvesh Satam (B.Eng. Mechanical, MS Mechanical Engineering)

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Page 1: Design portfolio sarvesh satam

Design Portfolio Sarvesh Satam (B.Eng. Mechanical, MS Mechanical Engineering)

Page 2: Design portfolio sarvesh satam

Welcome, and thank you for taking the time to view my portfolio.

The Goal of this portfolio is to give you a deeper insight into my experiences and

skills I have gained over my recent history.

It is my hope that this will allow you to better assess how my skills can be applied

to your company.

I would be happy to talk in more detail and can be reached using the contact

information at the bottom of this page.

Page 3: Design portfolio sarvesh satam

Sarvesh D. Satam 426 Westcott Street, Syracuse, NY 13210| [email protected] | +1 716-598-8554 www.linkedin.com/in/sarveshsatam/ | Design Portfolio: http://goo.gl/sBk1Lg CAREER SUMMARY: Professional Mechanical Engineer with hands on industrial experience in design, product development, machine design, R&D and automation including manufacturing, tooling, testing, analysis and introduction of products into manufacturing. EDUCATION: University at Buffalo, the State University of New York February 2015 Masters of Science in Mechanical Engineering GPA: 3.75/4.0 University of Mumbai, India July 2012 Bachelor of Engineering in Mechanical Engineering First Class with Distinction TECHNICAL SKILLS: Software: AutoCAD 2D & 3D, Creo Parametric 2.0, Solid Works, Unigraphics NX, Mechanica, ANSYS Fluent, ANSYS, Hyper Works, MATLAB, ProE, Rhino, Inventor, CATIA V5, Mastercam, Dymola, Enventive Computer skills: CNC Programming, PLC Programming, C++, Java, Microsoft Office (Word, Excel, PowerPoint, Access, Outlook, Project) PROFESSIONAL EXPERIENCE: MECHANICAL ENGINEER 2 KNORR- BREMSE NORTH AMERICA, WATERTOWN, NY March 2015 – Present PRODUCT DESIGN & DEVELOPMENT (New York Air Brake LLC) - New Product Development team for Valve, foundation and other components

Perform mechanical component design including design of pneumatic valves, plastic component, electromechanical, pneumatic systems

Design of packaging for electronics and pneumatic components while conforming to IP, NEMA and other standards

Implement GD&T, conduct Tolerance analysis and stackups, drafting and dimensioning as per ANSI Y14.5/ Y14.5M

Design of casting and injection molding parts, Responsible for product from prototype to final roll out to the customer (Mass production)

Conduct & lead R&D on various materials used and methods of testing in order to improve products (metals, plastics and others)

Product verification and validation including environmental and cycle testing, define test procedures, fixtures and analyze results

Responsible for New product development cycle, support quality improvement and cost reduction teams

Carry out DFMEA, DFMA,DFA, stress/strain, statics, dynamics, heat transfer and kinematic analysis of the pneumatic systems

MECHANICAL DESIGN ENGINEER GODREJ & BOYCE MFG. CO LTD, MUMBAI, INDIA July 2012 – July 2013 Material Handling Division in the design of Heavy Diesel forklifts (Capacity of 5 Tons to 32 Tons)

Designed & developed new products & prototypes, to be introduced and commissioned in the market for example 32 Ton Diesel Forklift, empty container handler and several other projects which extensively included sheet metal components

Used GD&T along with 3D CAD and FEA analysis softwares to design products and validate them to ensure performance standards

Analyzed for failure & improved the forklift chassis as well as handled selection of engines, transmission, axle, hydraulics and uprights

Created, documented and released necessary engineering data for production, manufacturing and service departments including engineer drawings, assembly drawings, Bill of Materials and ECNs and updating the ERP system, designed for casting, forming & molding.

Carried out DFMEA, APQP, DVP&R, continuous improvement, Root cause analysis, feasibility analysis and participated in Kaizen

Researched and designed novel models of specific parts wherever essential, especially in the production of ‘Empty container handler’

Supervised the manufacturing & assembly of the designed parts, gaining knowledge of the manufacturing processes & labor handling

Interacted with clients and customers to know the exact requirement (CTQs) of the design and accordingly plan the design process EDUCATIONAL PROJECTS: Design of an innovative 3D printer Feb 2014-May 2014

Designed a conceptual innovative 3D printer which was a Multi-material, multi-color, multi nozzle printer.

Capable of 3D printing fine features using various conventional FDM materials with great accuracy.

Incorporated commercially available parts to produce high performance at low cost. It was prototyped and can be manufactured for only $700 which compared to existing 3D printers in much less.

Design and analysis of car badge alignment fixture using additive manufacturing process Feb 2014-May 2014

Created a fixture of a lighter thermoplastic material with a customizable holder for all car badges using additive manufacturing process.

The manufacturing cost and time was minimized since only the holder would be 3D printed and the old holder would be recycled.

This innovative concept could be used to 3D print various products and potential environments. Design and manufacturing of dry leaf sweeper Aug 2013-Dec 2013

Developed a ‘dry leaf sweeper’ and automated the manufacturing for mass production.

Created process plan, manufactured few parts, assembled them, created a process plan for manufacturing, and planned the layout of the factory, implemented group technology and Flexible Manufacturing system.

Planned for automated production considering the cost and customer base which can be used for a product in any industry.

Page 4: Design portfolio sarvesh satam

Design and optimization of hydraulic brake for mountain bikes Aug 2013-Dec 2013

Optimized a hydraulic disc brake of a mountain bike to minimize the stopping distance in turn maximizing the braking torque.

Designed and validated the disk, brake pads, brake piston etc. using stress analysis thereby reducing the cost and increasing brake efficiency.

The objective function, constraints and optimization algorithm, applicable to optimization of product in any industry, was used. Controller design of a fire extinguishing robot Aug 2013-Dec 2013

Designed a fire extinguishing robot intended to be used primarily in buildings or small industrial area.

Developed a controller using concepts of controls and system analysis which would control the wheels and water pump to extinguish fire. Natural convection heat transfer in Laminar flow and its validation using computational fluid dynamics for non-Newtonian fluid

Jan 2013-May 2012 Experimentally investigated mixed convection heat transfer in a coil-in-shell heat exchanger for various Reynolds numbers or various non-Newtonian fluid, various tube-to-coil diameter ratios and dimensionless coil pitch.

Determined heat transfer characteristics by designing and analyzing coils, simulating the flow while applying the boundary conditions.

The results were validated against experimental observations forming correlations for the estimation of heat transfer inside a helical coil. Conceptual Design of an innovative multi-purpose key chain Aug 2014-Dec 2014

Designed innovative and cost efficient keychain using ProE (Creo).

Developed key chain consisted of key slot, small torch, measuring tape, compass and the cost was estimated to be $7.

Developed ladder diagram on PLC software in case the product is to be manufactured at any point in time in an automated setting. Gesture Based 3D transformations using leap motion Feb 2014-May 2014

Used a leap motion device to create Gesture based 3D transformation by drawing primitive shapes and conducted 3D operations like extrusion, etc.

Ensured the user could draw shapes by making gestures which would be classified using machine learning and then 3D modelling operation would be performed using gestures.

Virtual Cave Environment to study the performance enhancement with a companion Feb 2014-May 2014

Created an immersive CAVE (Virtual Reality) in background environmental settings to assist a person running on a treadmill to make him feel as if he is racing with a companion utilizing OPENGL with C++ to create the environment.

This can implemented in OCULUS RIFT and other virtual reality devices if required. Design of Energy Efficient House Sept 2011-Nov 2011

Designed a house which would consume minimum energy without compromising the energy needs.

Finalist in the Asia Pacific region as a part of the competition conducted by Emerson Company. Project Management & Customer interface based on SPIS and NLP case study Oct 2014- Dec 2014

The case study and research involved studying the Case, finding possible problems with the Case and coming up with advice for the Project Managers.

Addressing the Risk Management issues, Innovative use of RACI Matrix and Negotiation as a part of customer interface.

Used personal experience to improve information flow to improve customer interface (including client) as a part of Project management.

PAPERS PRESENTED: Multi-Attribute Decision Based Life Cycle Assessment in Packaging (Term Paper) Aug 2013- Dec 2013

Used Life Cycle Assessment method integrated with Multi Attribute Utility theory in order to compare the existing egg packaging materials with a new bagasse based packaging. Concluded that bagasse based packaging is better than conventional packaging.

Optimization of Energy Efficient Building using Non Renewable Energy Sources (Term Paper) Mar 2014- May 2014

Optimized the use of combination of renewable energy sources to satisfy the household energy such that the dependence on the energy from the grid is minimized.

A review of CFD analysis in heat transfer in helical coils. Oct 2011-May 2012

Reviewed CFD analysis or numerical methods used for Heat transfer in helical coils by various researchers. The paper qualified for presentation at an International conference at SPICON 2012 (Sardar Patel College of Engineering, Mumbai, India).

LEADERSHIP & HONORS:

President, Indian Society of Heating, Refrigeration and Air Conditioning, college student chapter. design of packaging for electronics

Ranked 3rd at undergraduate level amongst a class of 150 students.

Winner of robomaze, robot hurdle competition at Zephyr 2012 at LTCOE, Mumbai University.

Finalist amongst participants from Asia Pacific region in Emerson cup Competition. COURSES COMPLETED: Optimization of Engineering Design CAD Applications Control System & Analysis Computer Integrated Manufacturing Intelligent CAD Interfaces Manufacturing Automation Decision based System Design Virtual Reality Applications Project Management Sustainable Manufacturing

Page 5: Design portfolio sarvesh satam

INDUSTRIAL PROJECTS –AS MECHANICAL DESIGN ENGINEER AT GODREJ & BOYCE MFG CO LTD

• Design of 32 Tons Forklift

• Design of Empty container handler

• Design of Drive Axle

• Design of forklift chassis

• Design of steer axle

• Design of upright

• Design of various components and parts related to the forklifts

• Design of various brackets and supports

• Design of various attachments

Page 6: Design portfolio sarvesh satam

Since all the work in designing was done as an employee of Godrej & BoyceMfg Co Ltd., I was not allowed to take the designs with me after leaving thecompany due to privacy reasons. They allowed certain drawings derived fromCAD models to be with me and here is an example few of those.

The drawing is of tilt column whichsupports the tilt cylinders of the forklift.The model was made in Creo Parametric2.0 along with the design of the rest ofthe forklift chassis. The model was thenconverted into 2D drawing.

The forklift tilt column as manufactured according to design

Page 7: Design portfolio sarvesh satam

The above drawing shows the isometric view and other 2Dviews along with the dimensions of the accelerator & stopcable bracket which was to be used to restrict themovement of the accelerator cable. The part wasmanufactured and successfully mounted on the truck.

This part was a kaizen implemented to avoid the interferenceof the radiator shroud with the fan blades and to allow easyassembly. The part made huge difference in the assemblytime as well as reduced the number of fan failures due tocollisions.

Page 8: Design portfolio sarvesh satam

The pipe assembly was a part of the pipe linkage to connectthe hydraulic oil cylinder to the tilt cylinder located at the topof the tilt column. Several similar assemblies were created andare used on the trucks.

The pipe was a crucial part of the exhaust system since thispipe made a difference in the exhaust temperature whichwould affect the performance of the engine. The drawing ofthe pipe assembly was made from the model andmanufactured.

Page 9: Design portfolio sarvesh satam

The drawing is of the chassis of a 20T forkliftwhose model was created in CreoParametric 2.0 and analyzed using HyperWorks. The drawing was converted from theCAD model and then manufactured uponwhich the whole forklift was thenassembled.

Image of the chassis manufactured from the drawing and then the rest of

the components assembled on it.

Page 10: Design portfolio sarvesh satam

The drawing is of the platform which was to be mounted on the truck for the person to stand. The model was made and then converted into drawing which was used to manufacture it. The

assembly was successfully used on the truck .

Page 11: Design portfolio sarvesh satam

The drawing of the adaptor which was used to mount the oil pressure switch. The drawing was directly made in AutoCAD

and then part was manufactured.

The hose hump shown in the drawing was modeled and then converted into drawing. The part was used to connected two

pipes carrying air and having different diameters.

Page 12: Design portfolio sarvesh satam

The drawing shows the design of anauxiliary brake pedal whose design wascreated and then converted into thefollowing drawing. The drawing shows theisometric view and its 2D views withdimensions.

The part was manufactured and then fitted on to the truck as seen in the image and satisfied the reason for its design and

introduction on the truck.

Page 13: Design portfolio sarvesh satam

I was involved in the design of hundreds of parts and crucial components individually as well as in a team, these were examples of

some of my work in the industry and the other projects are as explained ahead.

Page 14: Design portfolio sarvesh satam

Design of an innovative 3D printerProject Title: Design of an innovative 3D printer

Aim: 3D printer which is Multi-material, multi-color, multi nozzle innovative 3D printer. The currently available 3D printersare expensive, heavy, and too large and use more number of stepper motors. In addition to this the simultaneous use ofmultiple materials in 3D printing has not been extensively explored. The printer proposed and conceptualized in thisproject was with the aim of overcoming these shortcomings.

Approach & implementation: The 3D printer effectively makes use of a turret mechanism similar to the tool magazinewhich comprises of many nozzles in the circular pattern. The whole assembly remains the same having a heated bed,nozzle extruder assembly, stepper motor and the motion of gantry is Cartesian. The design of the components was doneusing Creo Parametric 2.0 and SolidWorks. The loads were determined for analyzing the parts and then analyzed fordifferent modes of failure.

Some parts that were designed along with their specifications:

• A turret with four nozzles

• Hot Bed

• Lead Screws for smooth motion

• Single stepper motor for all four nozzles

• The nozzle movement in X-Y axes

• The hot bed motion in Z axis

• Nozzle Diameter: 0.4mm

• Build Volume: 25x25x25 cm3

• Overall body dimensions: 35x35x35 cm3 Overall CAD model of the designed New 3D printer

Page 15: Design portfolio sarvesh satam

The turret is basically a worm wheel with the 4 nozzle-extruder assembly. This turret can rotate 180° in boththe directions with the help of the worm gear. Onestepper motor is used for the worm wheel-geararrangement. And other stepper motor is used for allthe extruders.The stepper motor engages with one extruder andhelps print by passing the filament through theextruder. Once other material/color is required theworm wheel rotates so that the right extruderconnects with the stepper motor and the secondmaterial is deposited.

The printer made use of H gantry similar to mostprinters like the Makerbot etc., which takes care of themotion of the nozzle assembly which includes theturret structure.Lead scew motion transmission is used in this printerwhere in precise position can be achieved for heavyloads.

Page 16: Design portfolio sarvesh satam

The disassembly of the innovative 3D printer is shown in the image above. The turret

mechanism is housed in the casing and the whole assembly is confined to the printer box.

RESULTS :3D printer is affordable, compact, and innovative and a designercan unleash creativity by using multi-color, multi nozzle 3Dprinter.More number of nozzles can be added in the design of theprinter but would add to the size of the printer.The cost of 3D printer would be around $700 which is very lesscompared to other 3D printers since the materials used aremostly thermoplastics.The designs of the components were analyzed using SolidWorksand ANSYS and is found to be safe and the deformation withinsafe limits.The design was found to be good enough to be manufactured ifrequired.The manufacturing processes for different parts was determinedand the rest of the parts were ones which are easily available inthe commercial market.

Videos showing motion of the worm and extruder

http://youtu.be/cnPW6DixH-s - Worm motionhttp://youtu.be/EkB1Z-RtZ08 - Extruder rotation

Page 17: Design portfolio sarvesh satam

3D printed car badge alignment fixtureProject Title: Design and analysis of car badge alignment fixture using additive manufacturing process

Aim: Car industry badges are usually manually made in quantities of a hundreds, in order to make this process more efficient this project proposed a a lighter thermoplastic material with a customizable holder for different badges using additive manufacturing process such as Fused Deposit Modelling. This would reduce the need for various fixtures and reduce the waiting period for fabricating a new fixture for each badge. This also makes the badges customization for each vehicles manufactured.

Implementation : The whole of the designing process has been performed on PTC Creo Parametric and SolidWorks and the analysis was done using ANSYS and SolidWorks.

The above figure shows the Isometric view of assembly of fixture used for car badge alignment

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Exploded view of the fixture is shown above

BOM Value Qty Part Name Description

Cost Analysis

(USD)

1 1 Base Plate ABS material

7.64

2 2Mounting

BracketABS material

2.36

3 1 Badge Holder ABS material

4.26

4 4 Handles ABS material

2.72

5 2 Winged Nuts¼’’ Carbon Steel

(cold- forged)

0.5

6 6 Bushes Non-Ferrous

5.46

Bill of Material for the designed fixture

Base Plate constitutes the body of the fixture. The base plate holds all other parts of the assembly. Keeping in mind the ergonomics of design, one face of the base plate is fixed with two handles to hold the entire fixture. For having a DOF for other parts, the base plate is slotted at the ends and also has four through holes on the face.

Page 19: Design portfolio sarvesh satam

Mounting Brackets consists of two legs. The mounting brackets play a pivotal role inbadge-fixing mechanism. The four legs, go onto the frame of the automobile at whichthe badge is to be fixed, holding the base plate firmly to the frame. This ensures thatthe surface of badging is perpendicular to the base plate, for perfect fixation. At therequired height a wing nut is bolted on the threaded part to fix the height.

Badge Holder is the component which is customizable and is recycled after its use tomanufacture a new holder. As the name reads, badge holder is the part that holds thebadge firmly. Hence, the design of required badges can be made. Those CAD files areimported to the AM machine and can be 3D printed. This is the major part that usesAdditive Manufacturing technique more extensively when compared to the otherpart drawings of this design.

Left and Right side mounting brackets

Badge holder assembly

As can be seen below, a badge holder can be designed to incorporate the variouscurves of the work surface. Badges of various shapes and sizes can fit in theseholders which can be fixed on the required curved surfaces of cars with the specificcurves achieved on the holder by FDM.

Page 20: Design portfolio sarvesh satam

ANALYSIS : Assuming a maximum force of 60 N to be applied on the handle of diameter 8mm while fixing the badge. The design is found to be safe within the applied force and conditions.

Image shows the stress analysis of the badge holder which is critical assembly of the fixture

CONCLUSION :This method advocates green manufacturing by recycling the material for a new product. Fused Deposition Modelling candesign a fixture which can be used by any automobile company to fix the logo irrespective of the type of surface making ita universal fixture. It can be observed that 3D printing is a very time and cost effective technique. It can find wideapplications due to its accuracy in designing intricate models. The future would be to design a universal fixture which canbe used for fixing not only the model badges on the rear trunk lid but also the car emblems on the front trunk lid.The fixture can be manufactured and used by any company for fixing the badges.

Page 21: Design portfolio sarvesh satam

Dry Leaf CollectorProject Title: Design, analysis and manufacturing of Dry leaf collector.

Aim : Project included selection of a product (Leaf Sweeper), designing, creating a process plan, manufacturing few parts,assembly, creating a process plan of the manufacturing, studying the layout of the factory, group technology and FlexibleManufacturing System implementation. Also implemented automation of factory using machining centers, robots andAGVs.

Rendered View of the designed Dry leaf collector

Implementation: The task of this machine is to collect the driedleaves which have fallen off trees. This machine is ideal forhome usage to clean backyards, lawns and pathways. The CADmodel was made using CATIA and analysis was using ANSYS.

DESIGN CONSIDERATIONS:For important part of the project was to design the mechanismwhich would eliminate the prime mover and thus electricpower required to run the machine.

The design was done such that gear mounted on the wheelshaft would transmit motion to another gear which would bemounted on the shaft of brushes which would rotate andpickup the dry leaves. The right gear ratio would ensureenough rotational speed to pick up the leaves.

Page 22: Design portfolio sarvesh satam

Exploded view of the dry leaf collector

The parts in the leaf sweeper are:1. A pair of spur gears2. Frame3. Wheels4. Collecting bin 5. Frames6. Handle

The machining process that are involved in this process.Gears - 2 (different) - CNC machine.Plates- 2 similar outer plate and one inner plate- CNC machine.Hood - Sheet metal process.Shaft- 3 numbers - Lathe.

Gear calculations and design was done since it was the crucial part for motion transmission. The parameters fixed for Gear design:Diameter of wheel = Dw = 203 mmPushing speed = v = 0.7 m/sGear ratio=1:4This speed ratio was decided based on the walking speed and the speed required to gain the momentum for the brush to collect the leaves.Diameter of roller brush = Dr = 190 mmRotational speed of brush = wr = 4 rotations / sec

Let Rotational speed of wheel = wwheel

𝑤wheel =𝑉 ∗ 1000

3.14 ∗ Dw= 1.09 𝑟𝑜𝑡𝑎𝑡𝑖𝑜𝑛𝑠 /𝑠𝑒𝑐

𝐺𝑒𝑎𝑟 𝑟𝑎𝑡𝑖𝑜 =wr

wheel= 4

Pinion’s Parameters

1. Module = m = 2.5 mm

2. No. of teeth = z = 10

3. Pressure angle = ɸ = 20°

4. Pitch Diameter = 25 mm

Gear’s Parameters

1. Module = m = 2.5 mm

2. No. of teeth = z = 40

3. Pressure angle = ɸ = 20°

4. Pitch Diameter = 100 mm

Page 23: Design portfolio sarvesh satam

Driven gear (Pinion) manufactured according to the design

Driving gear manufactured according to the design

CAD design of the gear and pinion assembly

Page 24: Design portfolio sarvesh satam

CAD model of the front assembly of the dry leaf collector

Photos of the manufactured and assembled prototype of the dry leaf sweeper

The dry leaf sweeper is estimated to be manufactured at acost of approximate just $125 if manufactured in largenumbers. The weight of the machine is much lesser thanconventional machine making it easy to use and portable.

Page 25: Design portfolio sarvesh satam

Hydraulic brake for mountain bikesProject Title: Design and optimization of hydraulic brake for mountain bikes.

Aim: Optimization of a hydraulic disc brake of a mountain bike to minimize the stopping distance in turn maximizing the braking torque.

Implementation: The components being considered are the rotor, brake pad and the brake piston .

The assumptions made in the study are :• The mountain bike weight is assumed to be 80Kg.• The mountain bike’s maximum velocity is assumed in

the project for calculation since designing is alwaysdone for worst case scenario.

• The rotor material is considered to be Grey cast iron.• Factor of Safety is assumed to be 1.5 for the rotor.• Piston material is considered is aluminum based on its

heat dissipation capacity.

PROBLEM STATEMENT:Maximize - The braking torque of the hydraulic diskbrake of a mountain bike

Subject to-• Tensile stress of the disc rotor of the brake• Shear failure of the piston• Buckling failure of the rotor• Side constraints on the dimensions

Matlab” code was used to evaluate the optimum values for the optimization problem. The basic structure of our code wasto segregate the entire code into three “.m” files, one for defining the objective function, the second for defining theconstraints and the third for evaluating the entire problem using “fmincon” command.“fmincon interior point algorithm”, is used which uses two steps, algorithm attempts to solve the KKT equations for theapproximate problem via a linear approximation, this step is called a direct step or a Newton step.

Page 26: Design portfolio sarvesh satam

The maximum value of the objective function obtained from the code is approximately300Nm.

The values for the dimension considered in the project for the optimum solution are asfollows:

• Rotor diameter = 180.00 mm• Diameter of shaft hole in the rotor = 59.98 mm• Rotor step diameter = 81.21 mm• Diameter of the holes of rotor = 0.4160 mm• Radius of piston = 21.21 mm• Step thickness of the rotor = 1.302 mm• Number of holes = 6• Thickness of the rotor = 2.24 mm.

The value of braking torque which is comparable to existing models available in themarket as shown in table below:

Page 27: Design portfolio sarvesh satam

Design of Helical coils and analysis of heat transfer using CFDProject Title : Natural convection heat transfer in Laminar flow and its validation using computational fluid dynamics fornon-Newtonian fluid.

Aim : Design helical coil heat exchanger and experimentally investigate mixed convection heat transfer in a coil-in-shell heatexchanger for various Reynolds numbers or various non-Newtonian fluid, various tube-to-coil diameter ratios anddimensionless coil pitch.

Implementation : The model of the heat exchanger that is the helical coil was made using Pro Engineer Wildfire 5.0 and theanalysis was done using a number of different softwares. The meshing of the computation was done using GAMBIT andthen heat transfer and CFD study was done using ANSYS FLUENT.

CAD model of the helical coil tube in ProE Meshing of the helical coil tube done in Gambit

Page 28: Design portfolio sarvesh satam

The helical coils of the various diameters, pitches, materials is designed. The flow velocity, inlet temperatures and the water bath temperatures are varied and then simulation was carried out. Images of one of the simulation were shown below.

Temperature contour Velocity contour

Convergence graph plotted during iteration

Page 29: Design portfolio sarvesh satam

Temperature profiles within the coil at

various points

Velocity profiles within the coil at

various points

RESULTS:

The designed helical coils work to satisfactory levels.The resulting temperatures are compared with the resultsfrom the experimental tests performed. The CFD predictionsmatch reasonably well with the experimental results withinexperimental error limits in most of the researches. Thetemperature and velocity contours match reasonably withsome of the research papers published.The results generated under different conditions may beused further to obtain a generalized correlation, applicableto various coil configurations.

Page 30: Design portfolio sarvesh satam

Controller DesignProject Title : Controller design of a fire extinguishing robot

Aim : To design a robot that would help extinguish fires on a small scale. The design and specification can always be scaledup to make the robot to suit large scale fires and explosions.

Implementation : The controller is designed keeping in mind certain robot specifications and studying the stability,controllability, observability. Eventually a full state feedback controller is designed which is found to fulfill the requirements.The design is to control the wheels and water pump to extinguish fire.

System Modelling

Robot’s steering angle ( φ ) Open Loop Plant with full state feedback

Page 31: Design portfolio sarvesh satam

-10

0

10

20

30

X d

ot

-5

0

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Y d

ot

0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08-150

-100

-50

0

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The

ta d

ot

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Time (sec)

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plitu

de

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Xdo

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-3

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theta

dot

Step Response

Time (sec)

Am

plitu

de

Open loop response of one of the wheels

Closed loop response of one of the wheels

MATLAB coding was done to evaluate all the control properties with appropriate inputs and transfer functions derived from state space equations of the robot for its wheels and water pump.

COMPONENTS TO BE USED:1. Sensors : Flame detection sensors – mounted on all the sides of the robot. Infrared sensors – for accurate temperature measurement. Proximity or Range sensors – to detect presence of objects.2. Limit Switch3. Actuators – two equivalent DC motors to propel the robot and one to pump.

Page 32: Design portfolio sarvesh satam

Energy Efficient HouseProject Title : Design of an Energy Efficient house

Aim : To use the natural and inexhaustible sources to the fullest in replacing the energy sources that use the exhaustiveones to generate electricity and fuel.

Implementation : The normal daily devices that consume electric or other form of energy were replaced with non-conventional energy efficient devices.

Layout of the house under study

Particulars

Sr. No. Energy savings kWh/year

1 Lighting 500.635

2 Ventilation systems 1000.6

3 Air heating 360.5

4 Water Heating 1200

5 Energy from solar panels 1500.5

TOTAL SAVINGS IN kWh/YEAR 4562.235

The investment is quite high for most the energy efficient devices proposed and hence it becomes difficult to implement it. The project was selected as Finalist in the Asia Pacific region as a part of the competition conducted by Emerson Company.

Sarvesh Satam – Design Portfolio – [email protected] - +1-716-598-8554