Ceramic igniter have established themselves as reliable options in the gas heating industry. These high strength and rapid heating igniters offer an alternative to metal cartridge heaters for gas heating applications.
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Hot-surface activation igniters tend to have shorter ignition delays than spark igniters and often offer improved reliability and durability, as well as significantly less energy consumption compared to traditional heating methods.
Ceramic igniters offer high ignition efficiency, which enables them to be utilized in various applications including residential gas furnaces, tankless water heaters and cooltops. Their long lifespan also minimizes mechanical failures that often plague spark-type igniters.
Sintered ceramic igniters of this invention have been found to produce extremely rapid time-to-temperature times even at lower than nominal voltage levels (85 percent of nominal value). This makes them suitable for applications requiring rapid time-to-temperature change such as instantaneous water heating systems, cooltops and similar devices.
These igniters of this invention can be designed to operate reliably over a wide range of line voltages by employing features such as multiple, independently controlled zones that each exhibit distinctive resistance and temperature characteristics, for instance having one primary igniter zone with relatively lower resistance while having another with higher resistance levels in a booster zone - for instance the primary igniter can have relatively lower resistance while having another with substantially greater resistance; additionally they may include various encasement geometries to promote flow attachment of fuel or gases intended to be burned and thus initiating ignition processes.
FKK ceramic biomass igniters are ideal for lighting wood pellets and other solid fuels like corn, grains, coke or coal. Furthermore, these igniters can light up biomass burning appliances such as gas heating systems, ovens ranges and dryers more rapidly than traditional metal cartridge heaters at reaching temperature 5.5 times faster - reaching 175degC hotter!
According to the '804 patent, the hot zone of an igniter consists of aluminum nitride and molybdenum disilicide mixtures. The design temperature for this ignition element is 1350 deg C with an approximate hot zone length of 1.5 cm; providing speed, room temperature resistivity, and high temperature resistivity requirements needed in many applications.
Under certain conditions, however, an igniter often fails to meet these specifications. When activated with a nominal voltage (e.g. 120V), its ignition element typically reaches its design temperature within five seconds; the issue here being low-end line voltages that account for 85 percent of nominal voltage in many homes and businesses.
Igniters of the invention provide a solution to this issue by including a booster zone with a PTCR and intermediate resistance, located prior to the hot ignition zone of an igniter's electrical path. This prevents high voltage of an igniter from creating an early bridge between two zones that prematurely degrade sintered ceramic material.
Hot surface igniters are made of highly resilient and mechanical shock-resistant advanced ceramic compounds such as silicon nitride (SN). This construction allows them to withstand extreme environments while continuing operations over long periods. Furthermore, these innovative igniters can replace traditional spark gap-type igniters in jet engine systems like gas turbines, supersonic combustion rapid air movement (RAM) jet engines with or without afterburners.
SN igniters heat rapidly to temperatures over 1000 degrees Celsius and have proven their reliability over long durations of continuous ignition of natural gas. Their long service life and reduced maintenance costs make SN igniters an excellent option when compared with spark-gap type igniters.
Silicon nitride igniters are durable enough to withstand the elements found outdoors fire features, making them perfect for use with outdoor fire features. Many pellet grill manufacturers have chosen silicone nitride igniters in their latest appliances as a result.
This ceramic upgrade igniter kit brings your AC Traeger into the 21st-century of BBQ technology. Including everything necessary, it enables you to upgrade from its outdated metal predecessor and offers increased performance that lasts much longer than older style igniters.
Traditional ceramics are manufactured from naturally-occurring minerals and used for everyday items and building products, while modern technical ceramics are manufactured using inorganic compounds through complex manufacturing steps to produce stronger versions than their predecessors.
Silicon nitride (Si3N4) is an advanced ceramic that boasts higher temperature capabilities than metals while still offering strength, abrasion resistance, thermal cycling resistance, oxidation resistance and thermal cycling stability - making it the perfect material choice for hot surface igniters.
Advanced ceramics feature exceptionally rigid atomic structures that generate exceptionally stiff material structures, offering exceptional stiffness and stability. This allows ceramics to outshout polymers and metals in terms of their flexural strength - the degree to which it bends before snapping. Furthermore, advanced ceramics boast extremely high fracture toughness, which allows them to absorb large amounts of energy before breaking - an invaluable property for critical engineering applications.
Igniters constructed from advanced ceramics can withstand even the harshest environments and maintain hermetic seals under high pressure and vacuum environments, reducing risk due to high power levels or contamination. Furthermore, these igniters can be brazed directly onto metal for an added level of reliability that further decreases failure risk.
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