1. Abhishek V Nerkar
Contact: +91-9689003136/8805768229
E-Mail: autoczars87@gmail.com
CAREER OBJECTIVE
With constant efforts and hard work I want to deliver my best in the field of my interest. I want to enjoy
my work and want to keep an effective work-life balance.
Area of Interest:
IC Engines, Emissions and After-treatment systems, Computational fluid dynamics, Acoustics.
Relevant course work:
Alternate Fuels and IC Engines, Structural Dynamics, Computational fluid dynamics.
PROFILE SUMMARY
A total professional experience of almost 4.5 Years in Cummins India Ltd.
1.5 Years as a Product validation engineer- Creating Design verification plan & report, Conducting
test for various mechanical development activities like water intrusion test, System back pressure test,
Single axis shaker test, System Level durability test, Transmission loss test, RBM testing, Combined
Environmental Testing.
3 Years as a Computational Thermal fluid engineer- As system performance analysis and CFD
analysis for Engine & After-treatment (3D and 1D-System simulation)-While working on GT-Power
software. Activities performed are Pam Check, GEM 3D Discritization on the design geometries,
Reduced GT-model, Detailed Model, After-treatment selective catalytic reduction (SCR) pump system
simulation, DOC,DPF modelling.
In addition to testing & CFD activity -
 Conducted a guest lecture on “Basic of Hydraulics and Pneumatics” in Cummins College, Pune.
 Conducted an external examination for M.tech thesis at COEP for Automotive technology
students.
 I have also have the understanding of Engine testing like- ESC, ETC based on the On-highway
and Off-highway applications.
 Also contributed in preparing the Design drawings of after-treatment devices and the ITC-CES
Lab layout design.
 Knowledge on product life cycle from M0 to M6 cycles (i.e. from Product born to service phase),
VPI (Value package integration), CPS (current product support), CR (cost reduction) activities.
 Purchasing and commissioning of lab testing equipment.
TECHNICAL SKILLS
Analysis Software: Ansys-workbench, LMS
Modeling Softwares: Uni-Graphics, Creo-2,
Simulation Software: AVL Hydsim, Caterm-III, GT-Power, GT- Hydraulics and Injectors ,GEM-3D
Purchase Software: Ariba
ORGANISATIONAL EXPERIENCE
Presently working in Cummins Emissions Solutions India Ltd. as a Computational thermal fluid
Senior engineer
A brief about Product validation exposure-
Responsibilities-

2. Creating Design verification plan report and conducting test for various mechanical development
activities
A brief about testing activities-
Noise and vibration testing of EGP (Exhaust gas processor) on system level and component level
(Lead the K38 Engine and after treatment L-Phase testing (Pre-production phase) activity at OEM-
Gen-set level to meet the CPCB-ii Norms)
Data analysis in LMS software
RBM (Rotating bending mass) test on the After treatment system to check the failure at the welded
joints for adequate high-cycle fatigue life.
Endurance test by integrating the whole after-treatment system with engine and monitoring the
failure of the After-treatment component at rated speed conditions.
Substrate Re-tension test to check the structural integrity of the substrate.
Salt-spray test on the After-treatment material to check the material corrosion- FFM (Fit for market)
Project.
System back pressure test on After-treatment system.
Thermal durability test of SCR(Selective catalytic reduction) Doser unit on Climatic chamber
SCR (Selective catalytic reduction) Doser Component tests- Pump test, Pressure sensor test,
Temperature sensor test, By-pass valve test, Metering valve test, Accuracy test, leak test, durability
test.
Combined Environmental testing- Testing of the Doser fatigue due to combined environmental test
(Vibration profile x, y, z axis with 6 grmp) and temperature range from -40 to 70 Deg C
A brief about Analysis Led Design Exposure-
Simulating the actual supply unit model of SCR-After-treatment system in GT-fuel 1D Simulation tool
and validating with the actual experimental test results. Validated the data at 36 operating points (at
different operating speeds and pressure)
Sensitivity study of the DEF (Diesel exhaust fluid) Supply unit model- Sensitivity study is very
important to understand the dynamics behaviour of the pump valves (valve dynamics) at different
operating pressures and different speeds conditions. The sensitivity study of the Doser pump model
proved crucial to investigate the root cause of flow-rates drop, pressure trends at various locations in
the pump. Based on this study crucial design changes were identified which help the team in
improve productivity by saving in time and reducing the unnecessary testing cost. This project
helped me improving not only my technical, tool, functional knowledge but also proved beneficial in
cross-function interaction, global involvement, understanding the need and improve into the skills
which lead to satisfaction of the customer.
Modelling the Airless-Dosing system- This involved modelling of DEF Injectors in the 1D tool from
scratch. Predicting the pressures at suction and pressure side, flow-rate, Injection profile etc.
Acoustic noise prediction by generating the Impedance data- An After-treatment system is integrated
with Engine calibrated model and predicting Insertion loss and transmission loss.
Fluid volume extraction and discritization using Space-claim and GEM-3D and (Pre-processing tool
before simulation).
Written Standard operating procedure/ Functional excellence practice (FEP) on-
1) Combined Environmental testing- Testing of the Doser fatigue due to combined environmental
test (Vibration profile x, y, z axis with 6 grmp) and temperature range from -40 to 70 Deg C (This
FEP also covers the safety aspect of the testing and important steps to follow in case of fire or
emergency)
2) Thermal durability test of UA2 (Air Assisted Doser unit model) SCR(Selective catalytic reduction)
Doser unit on Climatic chamber
3) Acoustic noise prediction by generating the Impedance data for and After-treatment system
integrated with Engine calibrated model.
4) Functional excellence practice on After-treatment selective catalytic reduction (SCR) air-less
dosing system baseline validation with the experimental results.(Capability development project)
EDUCATION

3. M.Tech in Automotive Technology from COEP-ARAI, Pune with 8.27/10 GPA in 2012
B.Tech in Mechanical Engineering from NDMVP College of Engineering, Nashik with 67.86% in 2009
HSC from RYK College of Arts and Science, Nashik with 64.86% marks in 2004
SSC from Boys Town School English Medium School, Nashik with 66.4% marks in 2002
CERTIFICATIONS (Short-term Courses) & Achievements
Presented in Gamma Technologies-Conference held in Dec-2015.
Awarded the STAR PERFORMER AWARD OF THE YEAR as a product validation engineering
profile-(Sept 2014)
Won the 2nd prize in Visai2011- An International level project presentation competition held at Vel-
tech University, Chennai
Participated in “On-Track” event organized by Bosch at Chennai.
THESIS
During M.Tech
Title: Optimization and Validation for Injector Nozzle Hole Diameter of a Single Cylinder Diesel Engine
using GT-Power Simulation tool at ARAI in PTE Department
Description: In this thesis work, performance is predicted at different load conditions using GT-Power
simulation tool. This performance is being validated with the actual experimented performance results.
Critical parameters were listed based on the sensitivity analysis on the base model. Critical parameters
were optimized for achieving the desired fuel injector nozzle hole diameter & Boost pressure.
Additional Learning-
Experimental testing procedure for different engine categories according to the application
Component failures and field issues (Got a chance to monitor an engine bellow failure due to increase
in system level back pressure)
PROJECTS
During B.Tech.
Title: Design and fabrication of a single seater all-terrain vehicle-BAJA 2009
Description: The object of the competition is to simulate real-world engineering design projects and
their related challenges. The vehicle must be safe, minimum pollution (Green vehicle), easily
transported, easily maintained and fun to drive.
PUBLICATIONS
International Publications
M-TECH THESIS IN SAE International Journal on “Optimization and Validation for Injector Nozzle Hole
Diameter of a Single Cylinder Diesel Engine using GT-Power Simulation tool (Paper No. 2012-01-2306).
1D Modelling of Pumping Unit of Liquid-Only Urea Dosing System using GT-SUITE (2015)
https://www.gtisoft.com/publication-
result/?authors_ids[0]&type&category_ids[0]&companies[0]&industry_ids[0]&years[0]&phrase=A
PERSONAL DETAILS
Date of Birth: 29th September, 1986
Permanent Address: 35, Radha vallabh bungalow, Vivekanand nagar, Pipeline road, Nashik-422013
Current Address: E-801 Teerth Towers, Behind Mercedes benz showroom, Sus-Balewadi.
Pune-411045
Languages Known: English, Hindi, Marathi, German (Basic)