Eclipse AH-MA Series Mode d’emploi

No. 160, 8/1/05

Design Guide

AirHeat

Burners

Version 2

AH-MA Series

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

This publication is protected by federal regulation and shall

not be copied, distributed, transmitted, transcribed or

translated into any human or computer language, in any form

or by any means, to any third parties, without the e press

written consent of Eclipse, Inc., Rockford, Illinois, U.S.A.

We reserve the right to change the construction and/or

configuration of our products at any time without being

obliged to adjust earlier supplies accordingl y.

The material in this manual is believed adequate for the

intended use of the product. If the product, or its individual

modules or procedures, are used for purposes other than

those specified herein, confirmation of their validity and

suitability must be obtained. Eclipse, Inc. warrants that the

material itself does not infringe any United States patents. No

further warranty is e pressed or implied.

We have made every effort to make this man ual as accurate

and complete as possible. Should you find errors or omissions,

please bring them to our attention so that we may correct

them. In this way we hope to improve our product

documentation for the benefit of our customers. Please send

your corrections and comments to our Documentation

Manager.

It must be understood that Eclipses liability for its products,

whether due to breach of warranty, negligence, strict liability,

or otherwise, is limited to the furnishing of such replacement

parts and Eclipse will not be liable for any other injury, loss,

damage or e penses, whether direct or consequential,

including but not limited to loss of use, income of or damage

to material arising in connection with the sale, installation, use

of, inability to use or the repair or replacement of Eclipses

products.

Any operation e pressly prohibited in this Guide, any

adjustment, or assembly procedures not recommended or

authorized in these instructions shall void the warranty.

OPYRIGHT

ISCLAIMER

NOTICE

IABILITY

AND

WARRANTY

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

This manual has been written for those persons who are already

familiar with all the aspects of an air heat burner and its add-on

components, also referr ed to as the burner system. These aspects

are:

 design/selection

 installation

 use

 maintenance

The audience is expected to have pr evious experience with this

ind of equipment.

Design Guide No. 160

 This publication.

Data Sheet No. 160

 Required to complete design calculations in this guide.

Installation Guide No. 160

 Used with Data Sheet to complete installation.

Price Sheet No. 160

 Used to order burners.

 EFE-825 (Combustion Engineering Guide)

 Eclipse Bulletins & Instruction Manuals: 818, 820, 826, 832, 852, 854, 856

UDIENCE

PUBLICATIONS

About this manual

ELATED

PUBLICATIONS

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

 Read this manual carefull y. Mak e sure that you understand the

structure and contents of this manual.

 Ob ey all the safety instructions.

 Do not deviate from any instructions or application limits in this

man ual without written consent from Eclipse Combustion.

 If you do not understand any part of the information in this

man ual, do not continue. Contact your Eclipse sales office or

Eclipse Combustion.

here a re several special symbols in this document. You must know

their meaning and importance.

he explanation of these symbols follows. Please read it thoroughly.

Danger:

Indicates hazards or unsafe practices which WILL

result in seve re personal injury or even death.

Only qualified and well trained personnel ar e

allowed to carry out these instructions or

procedures.

Act with gr eat care and follow the instructions.

Warning:

Indicates hazards or unsafe practices which could

result in se vere personal injury or damag e.

Act with gr eat care and follow the instructions.

Caution:

Indicates hazards or unsafe practices which could

result in damage to the machine or minor personal

injury.

Act carefully.

Note:

Indicates an important part of the text.

Read the text thoroughly.

OCUMENT

CONVENTIONS

MPORTANT

NOTICES

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

About this manual

....................................................................... 3

Table of Contents

........................................................................ 5

Introduction

.................................................................................... 6

Product Description ....................................................................... 6

Safety

................................................................................................... 7

Introduction....................................................................................... 7

Safety .................................................................................................... 7

Capabilities.......................................................................................... 8

Operator Training ............................................................................. 8

Replace ent Parts ........................................................................... 8

System Design

............................................................................... 9

Design .................................................................................................. 9

Burner Design ................................................................................... 10

Step 1a: Calculating Maxi u Input Required................... 10

Step 1b: Choosing Design Heat Input at High Fire ............ 10

Step 1c: Deter ining the Length of Burner Needed ........ 10

Step 1d: Calculating Mini u Input Required ................... 10

Step 1e: Layout of the Burner Sections................................. 11

Figure 3.1.1 Burner Sections .................................................... 12

Figure 3.1.2 End Plate Exa ples.............................................. 14

Step 1f: Sizing & Layout of Gas Manifold ............................... 15

Step 1g: Sizing Profile Plates ...................................................... 16

Syste Design ................................................................................... 19

Step 2: Control Methodology................................................... 20

Step 3: Ignition Syste ............................................................... 21

Step 4: Fla e Monitoring Syste ............................................ 22

Step 5: Gas V alv e Train................................................................. 23

Appendix

.......................................................................................... 25

Conversion Factors ......................................................................... 25

Table of Contents

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

RODUCT

DESCRIPTION

Eclipse AH-MA v2.10 Air Heat burners produce a uniform, odorless,

and smokeless flame ideal f or heating fresh air in mak e-up and process

air heating applications. The AH-MA design provides stable operation

o ver a ide range of velocities, inputs, and fuels.

AH-MA v2.10 burners are line type burners constructed of cast

iron or aluminum burner bodies and diverging stainless steel air

ings. The burner bodies supply fuel to the center of the air ings to

control the air and fuel mixture inside the burner and to optimize

emissions and efficiency. Completely corrosion resistant design

options are available using aluminum burner bodies or electroless

nickel plated cast iron burner bodies.

The AH-MA v2.10 Air Heat burner is assembled from straight

sections, tees, and crosses to produce nearly any configuration

required. Large burners can be built as a combination of staged,

individually controlled sections to increase turndo n.

Figure 1.1

AH-MA v2.10 Air Heat Burner

Introduction

Adjustable

Profile Plate

Adjustable

Profile Plate

Heated Air

Air Wing

Uniform

Air Flow

Uniform

Air Flow

Gas Feed Pipe

Burner Body

Flame

Length

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

NTRODUCTION

AFETY

Safety

In this section, you will find important notices about safe

operation of a burner system.

Danger:

The burners covered in this manual are designed

to mix fuel with air and burn the resulting

mixture. All fuel burn-ing devices are capable of

pr oducing fires and explosions when improperl y

applied, installed adjusted, controlled, or

maintained.

Do not bypass any safety feature.

You can cause fires and e xplosions.

ever try to light the burner if the burner shows

signs of damage or malfunctioning.

Warning:

The burner and duct sections are l i ke ly to have

HOT surfaces. Always w ear protective clothing

when approaching the burner.

Note:

This manual gives inf ormation f or the use of these burners

for their specific limited design purpose. Do not deviate from

any instructions limits in this manual without written advice

f r om Eclipse Combustion.

Note:

Read this entire manual before you attempt to start the

system. If you do not understand any part of the information

in this manual, then contact your Eclipse representative or

Eclipse Combustion before you continue.

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

Adjustment, maintenance and troubleshooting of the

mechanical and the electrical parts of this system should be

done by qualified personnel with good mechanical aptitude

and experience with combustion equipment.

The best safety precaution is an alert and competent operator.

Thor oughly instruct new operators so they demonstrate an

adequate understanding of the equipment and its operation. Regular

r etraining must be scheduled to maintain a high degree of

proficiency.

Order replacement parts fr om Eclipse only. Any customer

supplied al es or switches should carry UL, FM, CSA, CGA and/or

CE appro al where applicable.

PERATOR

TRAINING

EPLACEMENT

PARTS

APABILITIES

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

Design structure

Designing a burner system is a straight-forward exercise of

combining modules that add up to a reliable and safe system.

The design process is divided into the following steps:

Burner design

calculating the maximum input requirements

choosing design heat input at high fire

determining the length of burner needed

calculating the minimum input requirements

layout of the burner sections

sizing and layout of the gas manifold

sizing the profile plates

burner staging

Control methodology

gnition system

Flame monitoring system

Gas valve train selection

Note:

Information in Data Sheet No. 160 is necessary to complete

some of the procedures.

ESIGN

System Design

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05

Calculating the maximum input requirements

To calculate the total burner maximum input required, solve:

Max. Input (Btu/hr) = 1.3 x SCFM x

∆

T (max)

Caution:

This is an appro ximation based on the gr oss heating value of the

fuel. F or more accurate heat balance calculations, refer to the

Eclipse Combustion Engineering Guide (EFE-8 5).

Choosing design heat input at high fire

See Data Sheet No . 160 for the following:

1 ) Use the Operating Range chart to determine the ma imum and

minimum heat inputs per foot of burner based on the known air

pressur e drop.

2) Use the Flame Length chart to check flame length versus a vailable

distance downstr eam of the burner for uniform temperature

distribution.

Determining the length of burner needed

Burner length, feet = max. heat input, total burner (Btu/hr)

heat input per foot (Btu/hr/ft)

Note:

Round fractional lengths (in ft.) up to the next half-foot.

Calculating minimum input required

Minimum Input (Btu/hr) = 1.3 x SCFM x

T (min)

Min. Heat Input per foot, Btu/hr/ft = min. heat input, total burner, Btu/hr.

burner length, feet

3) With the minimum heat input per foot, go to the Operating

Range chart in Data Sheet No. 160 and confirm that the burner

can operate at the input for the air pre ure drop the burner will

ee. If the minimum input required i too low, there are two

option to obtain thi operating condition:

a. U e a taged burner control ( ee burner taging and control

method in thi ection).

b . Modulate the air flo w to a lower pre ure drop, thu low ering

the minimum input capability of the burner.

Example

: A make-up air heat burner will be used to heat

60,000 SCFM air from 0°F to 80°F maximum and, from 75°F to

80°F minimum. Air

∆

P across the burner is designed to be

0.7"w.c. at high fire. The fuel is natural gas.

1) Max. Input Required: Btu/hr = 1.3 X 60,000 X 80 = 6,240,000

Btu/hr.

Step 1:

Burner design

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