line and duct burners
Minnox
Lowest emissions available on the market today, the pre-mix, line style Minnox burner meets or exceeds all international standards for NOx and CO.
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Overview
The Eclipse Minnox gas burner exceeds all state, regional, national and international emission standards for NOx and CO--less than 5 ppm NOx and less than 30 ppm CO at 3% 02. The patented Minnox burner design utilizes a premixed gas/air mixture with excess air. Minnox allows Eclipse customers to use efficient direct-fired air heating to safely process food products, malt, auto finishes, lumber, paper and other products with no performance penalty, while holding the line on emissions, regardless of the emission standards in their country.
Features & Benefits:
Features & Benefits:
- The patented Minnox burner design utilizes a premixed gas/air mixture with excess air, resulting in a cooler flame (2200° F; 1200° C) which produces an extremely low NOx discharge
- A recirculating flame geometry acts to significantly reduce CO emissions
- Not only is the air outside your plant cleaned up...so is the air inside to create a safer and healthier workplace
- Allows you to use direct heat
- As opposed to less efficient indirect heating
- With no performance penalty
- Product discoloration or taste contamination often associated with traditional direct heating systems are a thing of the past
- All Minnox systems are custom engineered to meet your specific production and installation requirements
- Packaged convenience
- Minnox systems are typically supplied with the burner, mixer and supply manifold mounted into a duct section or as a side plate for insertion into existing process ductwork
Specifications
Applications & Compatibility
- Application Purpose
- Direct‑fired process air heating in ducts
Burner/Flame‑Related Lengths
- Visible Flame Length
- 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
Performance, Flow & Capacity
- Turndown Ratio
- 10:1
- Heat Input Range
- Cross: 675 kW (2,305,000 Btu/h) (per section)
- Straight: 135 kW (460,000 Btu/h)
- T-Section: 540 kW (1,844,000 Btu/h)
Pressure Specifications
- Proportionator Gas Pressure
- Max 300 mbar (120 in wc)
- Min 100 mbar (40 in wc)
- Process Pressure Limits
- Negative: ≤ 6 mbar (2.4 in wc); Positive: ≤ 10 mbar (4 in wc)
- Process Air Differential Pressure
- At 10 m/s: ≈0.5 mbar (≈0.2 in wc)
- At 20 m/s: ≈2.0 mbar (≈0.8 in wc) (estimated)
- Pilot Gas Pressure
- Max 28 mbar (11 in wc)
- Min 16 mbar (6.5 in wc)
- Combustion Air Pressure
- 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
Operating/Process Temperature Ranges
- Process Outlet Temperature
- ≤ 500 deg C (930 deg F)
- Process Inlet Temperature
- ≤ 300 deg C (570 deg F)
Air & Combustion Air Specifications
- Process Air Velocity
- Max ≈20 m/s (≈3900 ft/min)
- Min ≈2 m/s (≈390 ft/min)
- Recommended ≈12 m/s (≈2400 ft/min)
- Combustion Air Volume
- 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
Combustion, Fuel & Mixing Sub‑Systems
- Pilot Type
- Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
- Pilot Input
- ≈15 kW (≈51,000 Btu/h)
Installation & Mounting Specifications
- Mounting Options
- Vertical (up/down), Horizontal (left/right), or Slot Firing
Overview
- Model Name
- Minnox ULE, V1
Ignition, Flame & Supervision Specifications
- Ignition Type
- Spark‑ignited integral pilot, nozzle‑mix type
- Flame Detection
- UV Scanner
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas (H); Propane (<10% unsaturated); Butane (<10% unsaturated)
Processing & Performance Metrics
- Emissions
- NOx < 5 ppm; CO < 30 ppm; HCHO < 0.17 ppm (not guaranteed; process‑dependent) (at 3% O₂, estimated)
Combustion/Furnace/Chamber Temperatures
- Combustion Air Temperature Range
- ≤ 40 deg C (104 deg F)
Control, Logic & System Behavior
- Burner Start Input
- 20% of nominal input
Product Design & Configuration
- Burner Design
- Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
Applications & Compatibility
- Application Purpose
- Direct‑fired process air heating in ducts
Burner/Flame‑Related Lengths
- Visible Flame Length
- 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
Performance, Flow & Capacity
- Turndown Ratio
- 10:1
- Heat Input Range
- Cross: 675 kW (2,305,000 Btu/h) (per section)
- Straight: 135 kW (460,000 Btu/h)
- T-Section: 540 kW (1,844,000 Btu/h)
Pressure Specifications
- Proportionator Gas Pressure
- Max 300 mbar (120 in wc)
- Min 100 mbar (40 in wc)
- Process Pressure Limits
- Negative: ≤ 6 mbar (2.4 in wc); Positive: ≤ 10 mbar (4 in wc)
- Process Air Differential Pressure
- At 10 m/s: ≈0.5 mbar (≈0.2 in wc)
- At 20 m/s: ≈2.0 mbar (≈0.8 in wc) (estimated)
- Pilot Gas Pressure
- Max 28 mbar (11 in wc)
- Min 16 mbar (6.5 in wc)
- Combustion Air Pressure
- 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
Operating/Process Temperature Ranges
- Process Outlet Temperature
- ≤ 500 deg C (930 deg F)
- Process Inlet Temperature
- ≤ 300 deg C (570 deg F)
Air & Combustion Air Specifications
- Process Air Velocity
- Max ≈20 m/s (≈3900 ft/min)
- Min ≈2 m/s (≈390 ft/min)
- Recommended ≈12 m/s (≈2400 ft/min)
- Combustion Air Volume
- 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
Combustion, Fuel & Mixing Sub‑Systems
- Pilot Type
- Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
- Pilot Input
- ≈15 kW (≈51,000 Btu/h)
Installation & Mounting Specifications
- Mounting Options
- Vertical (up/down), Horizontal (left/right), or Slot Firing
Overview
- Model Name
- Minnox ULE, V1
Ignition, Flame & Supervision Specifications
- Ignition Type
- Spark‑ignited integral pilot, nozzle‑mix type
- Flame Detection
- UV Scanner
Fuel, Gas & Media Specifications
- Fuel Type
- Natural Gas (H); Propane (<10% unsaturated); Butane (<10% unsaturated)
Processing & Performance Metrics
- Emissions
- NOx < 5 ppm; CO < 30 ppm; HCHO < 0.17 ppm (not guaranteed; process‑dependent) (at 3% O₂, estimated)
Combustion/Furnace/Chamber Temperatures
- Combustion Air Temperature Range
- ≤ 40 deg C (104 deg F)
Control, Logic & System Behavior
- Burner Start Input
- 20% of nominal input
Product Design & Configuration
- Burner Design
- Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
- Application Purpose : Direct‑fired process air heating in ducts
- Visible Flame Length : 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
- Turndown Ratio : 10:1
- Proportionator Gas Pressure : Max 300 mbar (120 in wc)|Min 100 mbar (40 in wc)
- Process Pressure Limits : Negative: ≤ 6 mbar (2.4 in wc); Positive: ≤ 10 mbar (4 in wc)
- Process Outlet Temperature : ≤ 500 deg C (930 deg F)
- Process Inlet Temperature : ≤ 300 deg C (570 deg F)
- Process Air Velocity : Max ≈20 m/s (≈3900 ft/min)|Min ≈2 m/s (≈390 ft/min)|Recommended ≈12 m/s (≈2400 ft/min)
- Process Air Differential Pressure : At 10 m/s: ≈0.5 mbar (≈0.2 in wc)|At 20 m/s: ≈2.0 mbar (≈0.8 in wc) (estimated)
- Pilot Type : Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
- Pilot Input : ≈15 kW (≈51,000 Btu/h)
- Pilot Gas Pressure : Max 28 mbar (11 in wc)|Min 16 mbar (6.5 in wc)
- Mounting Options : Vertical (up/down), Horizontal (left/right), or Slot Firing
- Model Name : Minnox ULE, V1
- Ignition Type : Spark‑ignited integral pilot, nozzle‑mix type
- Heat Input Range : Cross: 675 kW (2,305,000 Btu/h) (per section)|Straight: 135 kW (460,000 Btu/h)|T-Section: 540 kW (1,844,000 Btu/h)
- Fuel Type : Natural Gas (H); Propane (<10% unsaturated); Butane (<10% unsaturated)
- Flame Detection : UV Scanner
- Emissions : NOx < 5 ppm; CO < 30 ppm; HCHO < 0.17 ppm (not guaranteed; process‑dependent) (at 3% O₂, estimated)
- Combustion Air Volume : 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
- Combustion Air Temperature Range : ≤ 40 deg C (104 deg F)
- Combustion Air Pressure : 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
- Burner Start Input : 20% of nominal input
- Burner Design : Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
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