oil fired furnaces

1. Introduction to Oil Fired
Furnaces

2. Presented by :
Asim Manzoor
MS Energy Engineering

3. Table on contents
1.What are oil Furnaces, and its Uses
2.Types and Classifications.

4. Introduction to Oil Fired
Furnaces
?
• This furnace is mounted on two
pedestals above the floor level. For
pouring the molten metal, the furnace
is rotated by the geared hand wheel Oil
and air are admitted with pressure
through a nozzle. The furnace can be
stopped whenever needed &
temperature can be controlled easily.
• They give lesser pollution. Oil-fired
furnaces mostly use furnace oil,
especially for reheating and heat
treatment of materials. Light diesel oil
(LDO) is used in furnaces where
sculpture is undesirable

5. Table on contents
1. What are oil Furnaces, and its Uses
2. Types and Classifications

6. The Types of
Furnaces

7. What are oil Fired Furnaces?
1.Oil-fired furnaces and boilers are a popular choice in
areas of the country with limited access to natural gas,
such as the Northeast. Oil-fired furnaces and boilers
present an opportunity to use renewable fuels to heat
your home.
2.A number of companies are now offering heating oil
blended with biodiesel, allowing their customers to
reduce their dependence on foreign oil while drawing on
a domestic energy source. The biodiesel blends also
produce less pollution than pure heating oil.

8. The Types of Furnaces:
Types and Classification .Furnaces are classified as…
1. Oil fired
2. Waste oil
3. Duel fuel

9. Oil-Fired Furnaces:
• Most new oil-fired furnaces have AFUE ratings of 80 to 90 percent and are popular in areas
with limited access to natural gas. With a lifespan of 30 years, oil furnaces
tend to be less expensive than gas furnaces, but oil (often imported) is more
expensive than gas and prices can be volatile. Oil furnaces require an on-site
storage tank.
• In terms of maintenance, oil-fired furnaces develop deposits of soot and
carbon on the heat exchanger surfaces which require periodic removal to
maintain efficiency. In addition, the nozzle on the burner unit may need to be
replaced as well as the oil filters used to remove impurities from the fuel
prior to the oil being vaporized and ignited.

10. Waste Oil Furnaces:
1. Waste oil furnaces burn oil that can no longer be used for its
intended purpose, such as automotive or vegetable oil. They are
often promoted as a green or environmentally friendly solution as
they are recycling oil that would otherwise have to be disposed of.
2. Unfortunately, waste oil can contain lubricants, detergents and
more, with possible pollutants including lead, PCBs, and chromium
becoming airborne during heating. The EPA regulates which fuels
are safe to burn, while some areas require users to purchase a
permit and monitor chimney emissions. Waste oil furnaces can last
up to 20 to 25 years, with regularly cleaned furnaces working at
higher efficiency.

11. Dual Fuel Furnaces:
Dual fuel furnaces use a heat pump for cool weather and a gas furnace for cold weather. Heat pumps, put simply, remove heat from the outdoors and deposit it in your home. Inside
However, heat pumps are an inefficient way of maintaining a comfortable temperature during the colder months. Dual fuel systems switch to gas heating when it gets cold, and back
• Dual fuel furnaces use a heat pump for cool weather and a gas
furnace for cold weather. Heat pumps, put simply, remove heat
from the outdoors and deposit it in your home. Inside the heat
pump, an air handler warms the air as it passes over a coil of hot
refrigerant, then a fan blows the warm air into the home.
• However, heat pumps are an inefficient way of maintaining a
comfortable temperature during the colder months. Dual fuel
systems switch to gas heating when it gets cold, and back to the
heat pump in warm weather. This is considered one of the most
efficient systems on the market in terms of energy use (and
associated costs), although the initial installation or upgrading of a
system can be expensive.

12. Few Oil Fired Furnaces Names:
•• Heil Quiet Comfort 86 Oil Furnace. ...
• Armstrong Air L85BFV/RV Oil Furnace. ...
• Carrier Performance 80 OVM Oil Furnace. ...
• Trane XP80 Oil Furnace. ...
• Lennox Signature Collection SLO185V Oil Furnace. ...
• Kerr Paradigm 2G Condensing Oil Furnaces. ...
• Ruud Achiever Hi Boy ROCA-E/ROCA-A Oil Furnace.

13. Working of Oil
Fired Furnace
• • Oil Burner
• • Fuel injection.
• • Fuel nozzle.
• • Oil Pump.
• • Pressure Regulator
• • Electro Magnetic Valve.
• • .Fan
• • Igniters.
• • Safety Control

14. 1. Oil Burner
• An oil burner is a part attached to an oil furnace, water
heater, or boiler. It provides the ignition of heating
oil/biodiesel fuel used to heat either air or water via a heat
exchanger.
• The fuel is atomized into a fine spray usually by forcing it
under pressure through a nozzle which gives the resulting
flame a specific flow rate, angle of spray and pattern
(variations of a cone shape).
• This spray is usually ignited by an electric spark with the air
being forced through around it at the end of a blast tube, by
a fan driven by the oil burner motor.

15. 2. Fuel Injection
• Fuel is injected into the combustion
chamber by a spray nozzle.
• The nozzles are usually supplied with high
pressure oil. Because erosion from friction
with the oil, and possible blockage due to
lumps in it, they need replacement when
worn.

16. 3. Oil Pump
•This pumps the oil in and increases the
pressure in the nozzles to 15 bar
maximum (217.5 psi).
•Usually a gerotor of the sickle type is
used.
•Gear pumps are used frequently in oil
burners because of their simplicity,
stability and low price.

17. 4. Pressure Regulator
• To set the heat output of the burner, the rate of fuel
delivery via the nozzle must be adjustable. This is
often achieved by an adjustable pressure relief
valve between the pump and the nozzle.
• When the set pressure is reached (usually 100psi),
this valve opens and allows excess oil to flow
through a bypass back to the fuel tank or the pump
suction side.

18. 5. Electro Magnetic Valve
• This allows fuel to be shut off from the sprayer by
electrical control. It helps avoid drips when the
valve is closed.
• It also eases the purging of the burner (and any
boiler) of fuel mist during startup, or while
restarting after a misfire.
• If the burner were not purged the oil/air mixture
could explode dangerously.

19. 6. Fan
• This greatly reduces the energy required to make
steel when compared with primary steelmaking
from ores.
• Another benefit is flexibility: while blast furnaces cannot
vary their production by much and can remain in
operation for years at a time The fan blows air into the
combustion chamber.
• The rotor of the fan is powered by an electric motor.

20. 7. Igniters
• Some oil burners use glow bars which operate much like the
glow plugs of a diesel engine.
• Many use high voltage generated by a voltage-step up
transformer to create a spark for ignition, somewhat similar
to a spark plug.
• The new igniters would run cooler so the output voltage
could be increased from 10,000 to 20,000 VAC.
• This increase of voltage would be more reliable, reduce
delayed ignition, run cooler and all while using less energy.
The voltage is high, but a standard igniter will only pull
around 35 milliamps.

21. 8.Safety Control
• Oil-fired burners are fitted with a safety
mechanism for determining if the fuel has
ignited and a flame present. The terms "primary
control", "safety control

22. 9. Capacitor Start Motor
• The motor which drives the fan and the oil pump is usually a
capacitor start motor. It is a vortex shortage tank motor
because it also contains a short cage or cage holds.
• The difference with a three-phase motor is in the stator.
Where the vortex power motor has three coils aligned at
120° in the stator, the capacitor start motor holds one main
winding and one auxiliary winding aligned at 90°.

23. Correct Heat Distribution
• Correct Heat Distribution is done by Avoiding
High flame temperature which can also damage
the Refractory.
• It also result in better atomization.
• Burner should be aligned properly so that it can’t
directly touch the material for scale loss.

24. THANKS