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
Pressure Specifications
- 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)
- 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)
- Combustion Air Pressure
- 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
- Pilot Gas Pressure
- Max 28 mbar (11 in wc)
- Min 16 mbar (6.5 in wc)
Combustion/Furnace/Chamber Temperatures
- Combustion Air Temperature Range
- ≤ 40 deg C (104 deg F)
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
- Combustion Air Volume
- 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
- Process Air Velocity
- Max ≈20 m/s (≈3900 ft/min)
- Min ≈2 m/s (≈390 ft/min)
- Recommended ≈12 m/s (≈2400 ft/min)
Burner/Flame‑Related Lengths
- Visible Flame Length
- 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
Applications & Compatibility
- Application Purpose
- Direct‑fired process air heating in ducts
Control, Logic & System Behavior
- Burner Start Input
- 20% of nominal input
Installation & Mounting Specifications
- Mounting Options
- Vertical (up/down), Horizontal (left/right), or Slot Firing
Performance, Flow & Capacity
- 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)
- Turndown Ratio
- 10:1
Ignition, Flame & Supervision Specifications
- Flame Detection
- UV Scanner
- Ignition Type
- Spark‑ignited integral pilot, nozzle‑mix type
Product Design & Configuration
- Burner Design
- Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
Combustion, Fuel & Mixing Sub‑Systems
- Pilot Input
- ≈15 kW (≈51,000 Btu/h)
- Pilot Type
- Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
Overview
- Model Name
- Minnox ULE, V1
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)
Pressure Specifications
- 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)
- 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)
- Combustion Air Pressure
- 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
- Pilot Gas Pressure
- Max 28 mbar (11 in wc)
- Min 16 mbar (6.5 in wc)
Combustion/Furnace/Chamber Temperatures
- Combustion Air Temperature Range
- ≤ 40 deg C (104 deg F)
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
- Combustion Air Volume
- 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
- Process Air Velocity
- Max ≈20 m/s (≈3900 ft/min)
- Min ≈2 m/s (≈390 ft/min)
- Recommended ≈12 m/s (≈2400 ft/min)
Burner/Flame‑Related Lengths
- Visible Flame Length
- 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
Applications & Compatibility
- Application Purpose
- Direct‑fired process air heating in ducts
Control, Logic & System Behavior
- Burner Start Input
- 20% of nominal input
Installation & Mounting Specifications
- Mounting Options
- Vertical (up/down), Horizontal (left/right), or Slot Firing
Performance, Flow & Capacity
- 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)
- Turndown Ratio
- 10:1
Ignition, Flame & Supervision Specifications
- Flame Detection
- UV Scanner
- Ignition Type
- Spark‑ignited integral pilot, nozzle‑mix type
Product Design & Configuration
- Burner Design
- Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
Combustion, Fuel & Mixing Sub‑Systems
- Pilot Input
- ≈15 kW (≈51,000 Btu/h)
- Pilot Type
- Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
Overview
- Model Name
- Minnox ULE, V1
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)
- 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)
- Combustion Air Temperature Range : ≤ 40 deg C (104 deg F)
- Proportionator Gas Pressure : Max 300 mbar (120 in wc)|Min 100 mbar (40 in wc)
- Process Outlet Temperature : ≤ 500 deg C (930 deg F)
- Process Inlet Temperature : ≤ 300 deg C (570 deg F)
- Process Pressure Limits : Negative: ≤ 6 mbar (2.4 in wc); Positive: ≤ 10 mbar (4 in wc)
- Combustion Air Pressure : 48 mbar at mixer inlet (19.3 in wc), neutral chamber pressure
- Combustion Air Volume : 205 Nm³/h per 135 kW (120 scfm per 460,000 Btu/h)
- Visible Flame Length : 300 mm (12 in) from whirl plate; protected by 400 mm (16 in) combustion chamber
- Process Air Velocity : Max ≈20 m/s (≈3900 ft/min)|Min ≈2 m/s (≈390 ft/min)|Recommended ≈12 m/s (≈2400 ft/min)
- Application Purpose : Direct‑fired process air heating in ducts
- Pilot Gas Pressure : Max 28 mbar (11 in wc)|Min 16 mbar (6.5 in wc)
- Burner Start Input : 20% of nominal input
- Mounting Options : Vertical (up/down), Horizontal (left/right), or Slot Firing
- 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)
- Flame Detection : UV Scanner
- Turndown Ratio : 10:1
- Ignition Type : Spark‑ignited integral pilot, nozzle‑mix type
- Burner Design : Ultra‑Low Emissions (ULE) nozzle‑mix burner with integrated mixer
- Pilot Input : ≈15 kW (≈51,000 Btu/h)
- Pilot Type : Integral, nozzle‑mixing, spark‑ignited; interrupted pilot
- Model Name : Minnox ULE, V1
- Fuel Type : Natural Gas (H); Propane (<10% unsaturated); Butane (<10% unsaturated)
- Emissions : NOx < 5 ppm; CO < 30 ppm; HCHO < 0.17 ppm (not guaranteed; process‑dependent) (at 3% O₂, estimated)
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