Table of Contents
- 1 What would the result of excess oil in the combustion chamber be if it were ignited?
- 2 What products of combustion are produced with ideal combustion when fuel oil is burned?
- 3 Why is my oil furnace backfiring?
- 4 What causes oil burner puff back?
- 5 How does the refractory temperature affect the combustion efficiency?
- 6 How does a CAD cell sense the flames?
- 7 What happens to temperature when contents are removed from the can?
- 8 What happens when you decrease the pressure and temperature of gas?
What would the result of excess oil in the combustion chamber be if it were ignited?
If a boiler or heater is not running properly, unburned fuel may accumulate in its combustion chamber. Upon starting the heating appliance, this oil can ignite and cause an explosion or misfire inside the furnace. Oil puff backs are often more damaging than gas puff backs because oil creates more soot than gas.
What are two functions of the primary control on an oil burner?
The Purpose of Primary Controls in Heating Systems In particular, a primary control has three specific functions: Responding to the thermostat. Responding to the limit control. Controlling the startup, run cycle, and shutdown of the burner.
What products of combustion are produced with ideal combustion when fuel oil is burned?
What product of combustion are produced with ideal combustion when fuel oil is burned? Heat, Carbon-dioxide and water vapor.
How many grades of fuel oil are normally considered heating oils?
two grades
There are two grades of heating oil, Number 1 fuel oil and Number 2 stove oil, both of which are volatile and intended for cooking.
Why is my oil furnace backfiring?
Essentially, backfires occur when your oil furnace misses ignition: If the burner doesn’t ignite as intended, atomized oil fumes can build up; when ignition finally occurs, the fumes typically cause a small explosion.
What is the result of an oil nozzle that drips at the end of the cycle?
An afterdrip occurs for several seconds. Usually a small stream of oil squirts into the hot chamber. A small, smoky fire may result, which can lead to delayed ignition, sooted heat exchangers and the odor of oil fumes.
What causes oil burner puff back?
A puff back occurs when an oil burner doesn’t ignite right away and as a consequence fumes build up in the furnace. The fumes cause an explosion inside the burner chamber, which vaporizes and expels soot throughout a home or business, covering walls, baseboards, furniture and floors in oily toxic soot.
What two manual resets do all oil burners have?
All oil burners have two manual resets. The oil burner motor overload manual has been reset.
How does the refractory temperature affect the combustion efficiency?
56-1) How does the refractory temperature affect the combustion efficiency? The higher the refactory temperature, the higher the combustion efficiency.
How can the viscosity of fuel oil affect the performance and combustion efficiency of oil fired furnaces?
The viscosity (resistance to flow) of fuel oil increases as its temperature decreases. The higher the viscosity, SSU number, the more resistant to flow the oil is. An increase in viscosity of this magnitude will increase nozzle flow rate at 100 psi by 10% and increase the oil droplet size.
How does a CAD cell sense the flames?
The Cad Cell on your EnergyLogic Waste Oil Heater or Boiler senses the flame by detecting light in the visible spectrum, and is an important safety-feature of your EnergyLogic Waste Oil Burner.
Can an oil furnace explode?
An oil-burning furnace with a leaky seal may throw improperly atomized oil into the furnace’s combustion chamber, which eventually pools at the bottom of the chamber. The pools partially vaporize. They ignite when the furnace cycles on, causing an explosion.
What happens to temperature when contents are removed from the can?
When contents are removed from the can, then the mass of the contents will be reduced in the can. Because there is less mass in the can with a constant volume, the pressure will decrease. This pressure decrease in the can results in a temperature decrease. The contents coming out of the can also cool in temperature but for another reason.
Why does the temperature decrease when the volume of a can?
Because there is less mass in the can with a constant volume, the pressure will decrease. This pressure decrease in the can results in a temperature decrease. The contents coming out of the can also cool in temperature but for another reason. Outside of the can the volume is not held constant.
What happens when you decrease the pressure and temperature of gas?
If you decrease both the pressure and temperature of a fixed amount of gas, any changes you observe will be in the volume of the gas. Temperature is directly related to volume, and pressure is inversely related to volume.
What happens to volume when pressure is decreased?
Decreasing Pressure. The combined gas law states that the pressure of a gas is inversely related to the volume and directly related to the temperature. If temperature is held constant, the equation is reduced to Boyle’s law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase.