Sunil Pradkhan
Mechanical engineer II specializing in HVAC optimization and industrial ventilation for large-scale facilities. Proven ability to re-engineer legacy systems, enhancing energy efficiency and reliability. Extensive experience with ASHRAE standards, hydronic systems, and load modeling. Dedicated to providing comprehensive engineering solutions from analysis through commissioning.
Work History
Mechanical Engineer II
2 Years 10 Months- Conducted HVAC and mechanical evaluations to identify inefficiencies in industrial systems.
- Performed engineering calculations for airflow distribution, heat loss, and load modeling.
- Developed optimization strategies for ventilation staging and hydronic integration.
- Generated technical reports to enhance decision-making quality.
- Supported commissioning efforts through TAB execution and performance validation.
- Collaborated with operations, maintenance, and engineering teams to implement system improvements.
Commissioning Engineer
2 Months*Building Codes & Standards: IBC, IMC, IPC, NEC (NFPA 70)
*Inspection & Testing: MEP Inspection, HVAC TAB Verification, NDT/NDE, QA/QC Field Audits
*Field Software: Bluebeam Revu, AutoCAD, Facility Grid
*Documentation: Punch Lists, Daily Field Log
*Code & Regulatory Compliance: International Building Code (IBC), International Mechanical Code (IMC), International Plumbing Code (IPC), National Electrical Code (NEC/NFPA 70).
*Quality Assurance & Control (QA/QC): Field auditing, non-conformance reporting (NCR), defect tracking, punch list management, specification compliance.
*Structural & Systems Inspection: MEP (Mechanical, Electrical, Plumbing) systems, HVAC ductwork and air balance, fire protection and life safety systems.
*Testing & Diagnostic Procedures: Non-Destructive Testing (NDT/NDE), hydrostatic pressure testing, thermal imaging/infrared thermography, visual inspection (VT).
Mechanical Engineer
4 Months- Facilitated mechanical system design, analysis, and engineering documentation
- Conducted system evaluations and component-level analysis to enhance performance
- Aided engineering problem-solving to drive system performance improvements
Education
Bachelor of Science - Mechanical Engineering
Skills
Certification
OSHA 10
Languages
Timeline
Commissioning Engineer
Mechanical Engineer II
Mechanical Engineer
City College of New York
Key Engineering Projects
Industrial HVAC Recommissioning & ACH Optimization
Evaluated 3.76M ft³ welding facility at 5 ACH; identified >15× over-ventilation vs. ASHRAE 62.1. Separated process/envelope ventilation, validated airflow/ACH, modeled heat loss, and applied fan affinity laws. Implemented 1.1–5 ACH staged strategy. Results: 30–50% heating and 60–70% fan-energy reduction.
HVAC Energy Modeling & Load Reduction
Built ventilation-driven load model; identified >90% load from ventilation. Developed ACH/load/energy curves and annual MMBtu/therm models. Results: Reduced load 32,000 → 22,000 MMBtu/year per bay without capital investment.
Ventilation Compliance & IAQ Engineering
Performed ASHRAE 62.1 VRP calculations and ACH benchmarking. Applied ACGIH principles to evaluate dilution vs. source capture and linked IH sampling to HVAC conditions. Delivered code-compliant, performance-based ventilation strategy.
Air Distribution Optimization & System Rebalancing
Analyzed 30+ zones and ~13,000+ CFM capacity; identified dominant ~50% load zone. Rebalanced dampers/VAV and corrected pressurization. Results: ±10% airflow balance, improved IAQ and comfort without CapEx.
HVAC & Hydronic System Modernization
Integrated HVAC, hydronic risers, VAV, and exhaust systems across multi-floor renovation. Mitigated variable-flow conflicts and supported TAB, BAS, and functional testing. Delivered stable integrated systems.
Domestic Water System Optimization
Replaced galvanized piping with PVC and redesigned layout to reduce pressure loss. Eliminated corrosion risks, improved maintainability, reliability, and lifecycle performance.
Industrial Ventilation Assessment
Led welding/pickling evaluation; validated source capture vs. dilution ventilation and developed airflow verification methodology. Standardized analysis and defined next-phase validation strategy.