Author: Shrenuj Dave
Fired equipment has a way of telling you when something in the system isn’t quite lined up. Sometimes it’s a burner that won’t light cleanly after a cold night. Other times it’s a boiler drifting off its air–fuel curve, or a shutdown sequence that doesn’t behave the way operators expect. None of these issues are major failures on their own, but over time, they add up and start to erode reliability.
Spartan’s combustion group sees these patterns across boilers, heaters, reformers, OTSGs, and other fired equipment because our work spans the full scope, from Burner Management System (BMS) design and fuel‑train configuration to combustion control, functional testing, commissioning, tuning, and ongoing operations support. One consistent takeaway is that stable operation doesn’t come from a single upgrade. It comes from how the system is planned, how installation and commissioning are executed, and how the equipment is supported afterward.
Planning means understanding the safety requirements, applicable codes (such as CSA B149.3 and NFPA), and the actual condition of the equipment before changes are made. Execution means ensuring the BMS logic, fuel‑train components, and combustion controls reflect real field behavior, not just assumptions on paper. Sustaining performance means staying on top of seasonal tuning, compliance testing, and giving operators the tools and information they need to identify issues early.
Spartan’s combustion group sees these patterns across boilers, heaters, reformers, OTSGs, and other fired equipment because our work spans the full scope, from Burner Management System (BMS) design and fuel‑train configuration to combustion control, functional testing, commissioning, tuning, and ongoing operations support. One consistent takeaway is that stable operation doesn’t come from a single upgrade. It comes from how the system is planned, how installation and commissioning are executed, and how the equipment is supported afterward.
Planning means understanding the safety requirements, applicable codes (such as CSA B149.3 and NFPA), and the actual condition of the equipment before changes are made. Execution means ensuring the BMS logic, fuel‑train components, and combustion controls reflect real field behavior, not just assumptions on paper. Sustaining performance means staying on top of seasonal tuning, compliance testing, and giving operators the tools and information they need to identify issues early.
Planning: Getting the System Defined Before Work Starts
A stable combustion system starts with understanding what’s actually installed, not what old drawings or tribal knowledge suggest might be there.
Safety Logic Review:
BMS sequences often drift over time. Permissives get added, devices are changed, or steps are bypassed during troubleshooting. Spartan’s scope includes full BMS design review, sequence mapping, and verification through functional testing and commissioning.
Fuel Train Assessment:
Combustion system codes and standards, such as CSA B149.3 in Canada and NFPA standards used throughout North America and globally, define requirements for fuel‑train components, certification, installation, venting, testing, and documentation. A planning‑stage review helps identify gaps between code expectations and actual field conditions.
Control Strategy Baseline:
Before tuning or upgrades, plants need a clear baseline: current air–fuel curve behavior, O₂ response, draft conditions, burner condition, and instrumentation performance.
Safety Logic Review:
BMS sequences often drift over time. Permissives get added, devices are changed, or steps are bypassed during troubleshooting. Spartan’s scope includes full BMS design review, sequence mapping, and verification through functional testing and commissioning.
Fuel Train Assessment:
Combustion system codes and standards, such as CSA B149.3 in Canada and NFPA standards used throughout North America and globally, define requirements for fuel‑train components, certification, installation, venting, testing, and documentation. A planning‑stage review helps identify gaps between code expectations and actual field conditions.
Control Strategy Baseline:
Before tuning or upgrades, plants need a clear baseline: current air–fuel curve behavior, O₂ response, draft conditions, burner condition, and instrumentation performance.
Execution: Making Safety, Fuel, and Control Agree With Each Other
Burner Management System Implementation:
A functioning BMS must reliably prevent unsafe startups, manage purge and ignition sequences, detect flame, and shut down cleanly.
Fuel Train Configuration and Installation:
Unstable light‑offs and irregular flame patterns are often tied to fuel‑train issues, valve sequencing, regulators, venting, or pressure behavior.
Combustion Control Tuning:
Field tuning of air–fuel ratio, O₂ feedback, draft, and burner curves helps ensure predictable flame stability and reduces nuisance trips.
Integrated Controls Environment:
Spartan integrates combustion controls across PLC platforms and DeltaV™ to provide consistent diagnostics, alarms, and historian data.
A functioning BMS must reliably prevent unsafe startups, manage purge and ignition sequences, detect flame, and shut down cleanly.
Fuel Train Configuration and Installation:
Unstable light‑offs and irregular flame patterns are often tied to fuel‑train issues, valve sequencing, regulators, venting, or pressure behavior.
Combustion Control Tuning:
Field tuning of air–fuel ratio, O₂ feedback, draft, and burner curves helps ensure predictable flame stability and reduces nuisance trips.
Integrated Controls Environment:
Spartan integrates combustion controls across PLC platforms and DeltaV™ to provide consistent diagnostics, alarms, and historian data.
Stable combustion isn’t achieved through a single fix, it’s the result of thoughtful planning, disciplined execution, and ongoing attention to how the system behaves in the real world.
Shrenuj Dave
Sustaining: Keeping the System Predictable Over Time
Seasonal Tuning:
Western Canadian ambient conditions change significantly throughout the year, making periodic O₂ and air–fuel adjustments essential for stable operation.
Compliance Testing:
CSA B149.3 and NFPA compliance requires proper documentation, certified components, and validated safety performance.
Operator Support and Clarity:
Commissioning and training ensure operators understand system sequences, expected behavior, and the causes behind trips and shutdowns.
Western Canadian ambient conditions change significantly throughout the year, making periodic O₂ and air–fuel adjustments essential for stable operation.
Compliance Testing:
CSA B149.3 and NFPA compliance requires proper documentation, certified components, and validated safety performance.
Operator Support and Clarity:
Commissioning and training ensure operators understand system sequences, expected behavior, and the causes behind trips and shutdowns.
Examples Across Different Fired Assets
Boilers:
Firetube and watertube systems benefit from CSA‑compliant fuel trains, thorough functional testing, and integrated combustion control.
Heaters & Burners:
Pre‑testing burner geometry and curves can reduce commissioning time and improve overall performance.
Oil Sands:
OTSG and boiler steam production stability is highly dependent on well‑tuned BMS and combustion control.
Engines & MSAPR:
Air–fuel ratio technologies support NOx reduction and regulatory compliance.
Firetube and watertube systems benefit from CSA‑compliant fuel trains, thorough functional testing, and integrated combustion control.
Heaters & Burners:
Pre‑testing burner geometry and curves can reduce commissioning time and improve overall performance.
Oil Sands:
OTSG and boiler steam production stability is highly dependent on well‑tuned BMS and combustion control.
Engines & MSAPR:
Air–fuel ratio technologies support NOx reduction and regulatory compliance.
What a Stable Fired Asset Looks Like
- Consistent light‑off without extended purge cycles
- Predictable transitions between pilot and main flame
- O₂ readings that hold without constant adjustment
- Stable fuel pressure and draft behavior
- Clear trip indications with no unexplained lockouts
