# Flame Rectification - Amick Racing

Technical Conference - Panama City Beach, Fl - 2002 Flame Rectification Remember Ohms Law E=IXR Technical Conference - Panama City Beach, Fl - 2002 Alternating Current Sine Wave + + +

Applied AC voltage - - Technical Conference - Panama City Beach, Fl - 2002 Basic Electrical Circuit SOURCE CONTROL CONDUCTOR +

LOAD Technical Conference - Panama City Beach, Fl - 2002 Flame Rectification circuit! What devices are used for electrodes? Flame rod Burner Technical Conference - Panama City Beach, Fl - 2002

Flame Rectification Circuit The Voltage Source is the Ignition Control The load is the flame sensing circuit inside the control The conductors are the electrodes

already identified. What acts as the switch? The flame completes the circuit. Technical Conference - Panama City Beach, Fl - 2002 Flame Sense Circuit One electrode is larger than the other causing electron flow to be greater in one direction than in the other. Compare the burner size to the flame rod size.

Technical Conference - Panama City Beach, Fl - 2002 + F G _ + 0 - Current flow when flame rod is positive

5a Technical Conference - Panama City Beach, Fl - 2002 _ F G + + 0 - 1a

Current flow when flame rod is negative Technical Conference - Panama City Beach, Fl - 2002 Effective Flame Signal + + a Effect = 4a pulsating DC Applied AC voltage - a

- Technical Conference - Panama City Beach, Fl - 2002 Flame Rectification Circuit Remember Ohms Law ? What happens in a circuit if resistance increases and voltage stays the same? Technical Conference - Panama City Beach, Fl - 2002 Typical Flame Detection Current

Need to measure AC A as well as DC A Typical in-shot burner DC current is 2-5 A with a 4-8 A AC leakage. DC current is less than 1 A and AC current is at or above 4A 1. Flame signal is weak 2. Corrective action is required Technical Conference - Panama City Beach, Fl - 2002 DC Current vs. AC Current DC CURRENT 30

25 20 15 10 5 0 AC CURRENT AC DROPOUT Technical Conference - Panama City Beach, Fl - 2002 DC Current vs. AC Current DC CURRENT 0.5 1.0

1.5 2.0 2.5 3.0 3.5 AC CURRENT 3.94 4.37 4.88 5.45 6.20 6.95 8.29 AC DROPOUT 10.39

17.28 20.1 20.30 24.37 24.20 24.22 Technical Conference - Panama City Beach, Fl - 2002 Flame Rectification Circuit Remember Ohms Law ? What happens in a circuit if resistance increases and voltage stays the same? What can affect the resistance in the circuit?

What else can affect the flame signal? Technical Conference - Panama City Beach, Fl - 2002 Increased circuit resistances Burner oxidation Non-secure burner Flame lift off

Loose wire connections Contaminated flame sensor Faulty grounds No grounds Reverse polarity

## Recently Viewed Presentations

• Gift Quiz - Who is RTM? What did his father do? Syllabus after Holiday Break Class #6 - Today Widget Programming Review Assignment #2 (Check Website for details) Combine Assignment #1 into Assignment #2 Create a widget program that will...
• the brain (entrainment occurs between people, you and your pets and the earth) ... Yoga, meditation, music, hypnosis, holosync. Creative expression. Prioritising being over doing, love over fear. Getting in the 'flow' changes your brain waves to slow alpha .....
• Animal Farm George Orwell. An allegory/ fable, conveys a clearmoral or message. On thesurfacethe story is aboutanimals, but on a second level, theanimals stand for types of people or ideas.
• Favorite Fairy Tales: The Childhood Choice of Representative Men and Women. New York: Harper & Brothers, 1907. This shows the dwarves huddled over Snow White as she lays in her dark sleep. They put a focus on Snow White, because...
• Neuropsychological assessments - e.g. MMSE, ADAS-cog. Clinical examination. Collateral history. Brain scan. Blood tests. Distribution pathology in typical AD (Braak and Braak 1991) Focal dementiaYOU DO NOT NEED IMAGING TO DISTINGUISH THESE CONDITIONS. PATIENT 1. ALZHEIMER'S .
• Warren Gammon of Des Moines started developing this breed in 1901; he contacted Hereford breeders with naturally hornless cattle; Mr. Gammon started with 11 polled Herefords and formed a separate registry. Characteristics: red to yellowish-red body and white face. white...
• (AKA Dirichlettesselations, Wigner-Seitz . regions, Thiessen polygons, Brillouinzones, …) To discuss why it works nicely, let us study voronoi diagrams for a minute. This is a voronoi diagram of many points sampled independently uniformly at random from the plane.
• An animal moves about when the nervous system, muscular system and skeletal system work together to make movement happen. Animals that live in water, on land, or in the air have different adaptations for movement. Moving in water - Water...