Datasheet

Eclipse RatioMatic Burner, RM Series, V5, Design Guide 110, 11/11/2011
6
Design
The design process is divided into the following steps:
1. Burner Option Selection Including:
• Burner Model / Size
• Firing Position
• Burner Configuration
• Fuel Type
• Fuel Supply
• Combustor Type and Material
• Combustor Length
• Nozzle Type
• Air Supply
• Control Motor
• Limit Switch
• Loading Line Type
• Air Pressure Switch
• Piping Connection
• Flame Supervision
2. Blower Option Selection Including:
• Power Supply Frequency
• Pressure and Flow
• Blower Motor Type
• Blower Inlet
• Motor Orientation
3. Control Methodology Including:
• Burner Control
4. Ignition System Including:
• Ignition Transformer
• Trial for Ignition
• Ignition Gas Piping
5. Flame Monitoring Control System Including:
• Flame Sensor
• Flame Monitoring Control
6. Main Gas Shut-Off Valve Train Including:
• Component Selection
• Valve Train Size
Step 1: Burner Option Selection
Step 1 describes how to select burner options to suit an
application. Use the RatioMatic Price Lists and
Datasheets, series 110 when following this selection
process.
■ Consult EFE-825 Eclipse Engineering Guide or
contact Eclipse if you have special conditions or
questions.
Burner Model / Size Selection
Consider the following when selecting the burner size:
• Heat Input: Calculate the required heat input to
achieve the required heat balance.
• Power Supply Frequency: Burner capacity will
vary with power supply frequency (50 Hz or 60 Hz
power).
• Combustion Chamber Pressure: Consider the
effects that large or varying chamber pressures
have on burner performance.
• Altitude: The maximum burner capacity is reduced
by approximately 3% each 1000 feet (300 meters)
above sea level.
• Combustion Air Supply: Combustion air should
be fresh (20.9% O
2
) and clean (without particles or
corrosives).
• Combustion Air Temperature: Changes in air
supply temperature can affect the burner capacity.
Contact Eclipse if the combustion air temperature
exceeds 150°F (65°C).
• Fuel Type: Variation in calorific value, specific
gravity and WOBBE index will affect burner
performance. If any of these parameters change
more than ±5% from Figure 3.1 contact Eclipse to
check the suitability of the fuel. Performance data,
dimensions and specifications are given for each
RatioMatic in Datasheets Series No.110.
CAUTION
System Design
3