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Essay / Research Paper Abstract
This 4-page paper provides an overview of spark plugs and their performances. The paper includes information on how a spark plug handles heat, and alloys used. Bibliography lists 2 sources.
Page Count:
4 pages (~225 words per page)
File: D0_MTspaplu.rtf
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Unformatted sample text from the term paper:
and show how they are influenced by design. To answer this, its a good idea to review what, exactly, spark plugs are
created to do. First, they must ignite the air-fuel mixture, then they remove heat from the combustion chamber (NGK Spark Plugs. 2005). In short, the responsibility of the spark plug
is to seal the combustion chamber of an engine (DodgeRam.info, 2004). Because spark plugs are there to remove heat (in that they
pull unwanted thermal energy away from the combustion chamber), they need to be designed in such a way that heat is pulled away through a "ribbed" design (which well go
into more in the next section) (NGK Spark Plugs. 2005). Heat transfer rate is calculated by the nose length of the insulator
and the gas volume around the nose, and the construction of the plugs center electrode and its porcelain insulator (NGK Spark Plugs. 2005).
Because a spark plug consists of ceramics, steel and alloys, these materials dont produce energy or heat - rather, the "heat range" of a spark plug refers to the
ability of the plug to move heat away from its tip/core nose and into the cooling system (DodgeRam.info, 2004). Describe briefly the process used to manufacture the ceramic insulator; and
why does it have a "ribbed" design. The insulator is one of three components of a spark plug (the other two being
the shell and the electrodes) (DodgeRam.info, 2004). The insulator has two functions - it must insulate the secondary ignition voltage from grounding (except for across the gap in a combustion
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