Diesel Dosing Systems

Purpose: Diesel Dosing System is to reduce nitrogen oxide emissions in diesel engines by precisely injecting small amounts of diesel exhaust fluid (DEF) into the exhaust stream.

Overview: A diesel dosing system is a component used in diesel engines to precisely meter and inject small amounts of diesel exhaust fluid (DEF) into the exhaust stream. DEF is a solution of urea and deionized water that is injected into the exhaust gas to reduce nitrogen oxide (NOx) emissions. The dosing system consists of a pump, injector, control module, and sensors that work together to accurately measure and inject the right amount of DEF at the right time.

 

Advanced FEA Analysis & Engineering Calculations for Skid-Mounted Chemical Injection Packages

At Verito Engineering Private Limited, we specialize in providing comprehensive engineering analysis and calculations for Skid-Mounted Chemical Injection Packages, ensuring superior performance, reliability, and compliance with global industry standards.

Our expertise covers Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), Structural, Mechanical, Hydraulic, and Thermal Calculations for all critical skid components, including:

Key Engineering Capabilities

Pressure Vessel Calculations API 675-Compliant Dosing Pump Selection & Sizing Agitator & Mixing Calculations (For Chemical Preparation Skids)
  • Pressure Vessel Design & Shell Thickness Calculation as per ASME Sec. VIII Div. 1 & 2.
  • Vessel Internal Component Load Analysis (Baffles, nozzles, internals, etc.).
  • Stress Analysis for Pressure Retaining Components to ensure longevity.
  • Nozzle Reinforcement & Load Analysis to prevent failures under operational loads.
  • Flow Rate & Pressure Drop Calculation for precise chemical metering.
  • Pump Stroke Length, Plunger/Diaphragm Sizing & NPSH Calculation to prevent cavitation.
  • Pulsation Dampener Sizing for flow stability & reduced pressure fluctuations.
  • CFD Analysis for Flow Optimization in complex piping networks.
  • CFD Analysis for Flow & Performance Optimization.
  • Impeller Selection & Torque Calculation for effective chemical mixing.
  • Structural & Fatigue Analysis of Agitator Shaft & Blades for extended service life.
  • Vortex Prevention & Baffle Sizing for improved mixing efficiency.
Automation & Instrumentation for Optimized Operations Piping Stress & Pressure Calculations Structural & Skid Frame Analysis
  • PLC, HMI, SCADA-Based Automation for precise control & reduced human intervention.
  • Smart Flow Meters, Pressure Transmitters & Level Sensors for real-time monitoring.
  • Automatic Dosing Adjustment & Data Logging to optimize chemical consumption & efficiency.
  • Pipe Wall Thickness Calculation as per ASME B31.3.
  • Flange Sizing/rating, Leakage & Weld Joint Strength Assessment for high-pressure applications.
  • Surge & Transient Flow Analysis to prevent pressure spikes.
  • FEA-based validation for skid stability, seismic loads, and lifting conditions.
  • Baseplate & Pump Mounting Deflection Study to prevent misalignment.
Strainer Calculations Safety & PSV Sizing Calculations Injection Quill
  • Strainer Mesh Sizing & Pressure Drop Calculations for filtration efficiency.
  • Pressure Safety Valve (PSV) Sizing per API 520/521.
  • Overpressure & Surge Analysis for emergency scenarios.
  • Injection Velocity & Jet Penetration Analysis for precise chemical dispersion.
  • Wake Frequency Calculation to prevent vibration-induced failures.
Material Selection & Corrosion Analysis Operational Efficiency & Cost Reduction
  • Material Compatibility Assessment (SS316, Duplex, Super Duplex, Alloy 20, Hastelloy).
  • NACE MR0175/ISO 15156 Compliance for sour service applications.
  • Optimized Equipment Layout for Compact Skid Design - reduces footprint & installation cost.
  • Automated Operation to Reduce Manpower Requirements.
  • Remote Monitoring & Troubleshooting for reduced downtime & maintenance costs.

 

The dosing system typically operates in a closed-loop control system, where sensors monitor the NOx levels in the exhaust gas and send signals to the control module. The control module then adjusts the flow rate of DEF based on the NOx levels, ensuring that the engine is operating within emissions regulations. The dosing system can also be integrated with other engine management systems, such as the fuel injection system and the engine control unit, to optimize engine performance and reduce emissions.

Diesel dosing systems are commonly used in heavy-duty diesel engines, such as those used in commercial trucks, buses, and off-road vehicles. They are an essential component of modern diesel engines, helping to meet emissions regulations while maintaining engine performance and fuel efficiency.

Supplied to:Oil & Gas Industry, UAE

Technical Aspects: Available in ATEX, CE, ASME, API, IS…..etc.

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