Eclipse RatioMatic RM Series Guía de instalación descargar pdf (Pagina 10)

Eclipse RatioMatic v3.10 - Design Guide No. 110, 12/01

Step 1 describes how to select burner options to suit an

application. Use the RatioMatic Price List 110 and Data Sheets,

Series 110 when following this selection process.

Caution:

Consult EFE-825, Eclipse Combustion Engineering Guide, or

contact Eclipse Combustion 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 (50Hz or 60Hz 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

) and clean (without corrosives).

• Combustion Air Temperature. Changes in air supply

temperature can affect the burner capacity. The

combustion air supply temperature should not exceed

250° F.

• Fuel Type. Variation in calorific value and density will

affect burner performance.

Fuel Type

Fuel Symbol Gross Heating Value Specific Gravity

Natural gas CH

90%+

1000 BTU/ft

0.60

1.52

1.95

(40 MJ/m

)

(103 MJ/m

)

(130 MJ/m

)

Propane C

2570 BTU/ft

Butane

3250 BTU/ft

BTU/ft

@ standard conditions (MJ/m

@ normal conditions)

If using and alternative fuel supply, contact Eclipse Combustion

with an accurate breakdown of the fuel components.

Air Supply

When a standard RatioMatic Version 3.00 burner is ordered, a

combustion air blower is supplied and mounted directly to the

burner body.

Combustor Type

Select a combustor type based on the application. Low

temperature applications use an alloy combustion tube. High

temperature applications use a silicon carbide (SiC) tube or a

refractory block & holder. For vertical down-firing

applications with block and holder, consult factory.

Step 1: Burner Option

Selection

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Eclipse RatioMatic RM Series Guía de instalación Pagina 10

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