Home | Nirosh Jayasuriya

Researcher | Engineer | Lecturer

I am a dedicated and enthusiastic professional with a strong passion for technology and innovation. My expertise lies in engineering design, simulation, and deep learning, with a focus on leveraging advanced technologies to optimize systems’ performance and efficiency. I am committed to applying my technical knowledge and problem-solving skills to develop impactful solutions, while utilizing my soft skills to foster collaboration and contribute meaningfully to the advancement of the field.

Education

Master of Philosophy in Mining Engineering,
Shandong University of Science and Technology, China.

2020-2023

Thesis: A Study on the Compressibility and Seepage Behavior of Coal Based on the 3D Evolution of the Pore Fracture Network Under Increasing Compressive Stress

2015-2020

Honours Degree of Bachelor of the Science of Engineering,

University of Moratuwa, Sri Lanka.

Field of Specialization: Mechanical Engineering
Class: First Class (Overall GPA: 3.76/4.2)
Related Core Modules: Energy Technology & Environment, Computational Fluid Dynamics, Heat and Mass Transfer, Fluid Power Systems and Machinery, Fluid Dynamics

U.B Wanninayake National College, Galgamuwa. Sri Lanka.

2010-2014

GCE Advanced Level (2014): 2A’s and B in Physical Science Stream
GCE Ordinary Level (2010): 9A’s

Employment History

Lecturer

Department of Mechanical Engineering, University of Sri Jayewardenepura, Sri Lanka.

(Dec. 2023 – Dec. 2024)

(Sept. 2020 – Dec. 2022)

Subject Expertise: Taught core subjects including Fluid Machinery, Applied Thermodynamics, and Solid Mechanics.
Supervised undergraduate final-year projects and individual research initiatives, guiding experimental design and report/manuscript preparation.
Contributed to the curriculum revision process, ensuring alignment with academic standards and industry requirements.
Served as the Department Representative in the Internal Quality Assurance Cell (IQAC) committee, promoting quality enhancement initiatives.
Played an instrumental role in obtaining IESL (Institution of Engineers Sri Lanka) accreditation for the department’s programs.
Coordinated visiting lectures by industry experts and academicians to enrich student learning experiences.
Oversaw the development and maintenance of the department website, ensuring it remained informative and up-to-date.

Trainee Engineer

Ceylon Tobacco Company (PLC), Sri Lanka.

(July 2018 – Dec. 2018)

Actively contributed to the Integrated Work Systems process and documentation for operational efficiency.
Implemented machine-stop elimination strategies as part of the Unified Problem Solving (UPS) project.
Managed production scheduling and forecasting, including calculations for MTBF (Mean Time Between Failures), OEE (Overall Equipment Effectiveness), and annual recovery planning.
Designed and introduced a new cigarette trolley to optimize floor space utilization in the SMD.
Gained foundational knowledge in PLC programming and hardware configuration using Siemens S7-300 and S7-400 systems.

Research Experience

Master of Philosophy, Shandong University of Science and Technology

(Sept. 2020 – Dec. 2023)

Research Topic: "A Study on the Compressibility and Seepage Behavior of Coal Based on the 3D Evolution of the Pore-Fracture Network Under Increasing Compressive Stress."
Clarified the mechanism of compression failure in coal under dynamic compressive stress, with a focus on macro- and micro-scale natural fractures.
Designed a U-Net-based convolutional neural network in a Python environment, achieving an Intersection over Union (IoU) exceeding 95% for accurate segmentation of CT images, enabling precise characterization of pore-fracture networks.
Developed advanced compressibility and permeability models that differentiate the contributions of micropores, macropores, and fractures to coal behavior under increasing compressive stress.
Utilized cutting-edge tools, including digital rock technology, SEM, CT scans, NMR, and numerical simulations, to analyze pore space evolution and fluid flow dynamics under stress.
Provided critical insights into methane extraction efficiency during the early production stage, contributing to improved predictive models and strategies for deep CBM reservoir exploitation.
Conducted uniaxial compression tests on coal specimens to evaluate compressibility and mechanical behavior.
Gained expertise in image processing and segmentation using ImageJ and Avizo software.
Peer-reviewed research papers for academic journals under the guidance of a supervisor.

BSc Eng Hons, University of Moratuwa

(Nov. 2015- Jan. 2020)

Design and Development of a Carburetor for an Otto Engine Running on Producer Gas: Studied producer gas generation, purification, and flammability limits. Developed a gas carburetor model for low-energy-density gaseous fuel and utilized ANSYS Fluent to evaluate premixed combustion technologies.
Design of a Fan-Assisted Heat Sink to Dissipate 140W from Desktop Computers: Conducted numerical analysis to estimate the required mass flow rate and define inlet and outlet conditions. Performed CFD analysis to optimize design parameters and validate results.
CFD Analysis of a Passive Cooling Wind Catcher with Heat Pipe Technology: Investigated the impact of cooling devices on the performance of wind catchers using CFD simulations.
Design of an Automated Time-Temperature Graph Plotter: Developed a two-axis graph plotter controlled by an Arduino-based program for automated plotting of time-temperature data.
Design of a Gearbox for a Cargo Lift: Designed a gearbox with three forward gears and one reverse gear. Conducted calculations for gear reduction, shaft diameters, load distribution, bearing selection, and prime mover specifications in accordance with industry standards.