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Q67.

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Where

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the

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heat

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input

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capacity

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of

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a

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combustion

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unit

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is

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less

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than

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250

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mmBtu

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per

...

hour

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input

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capacity

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and

...

the

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unit

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is

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not

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subject

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to

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Tier

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3

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or

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4

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per

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Subpart

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Y

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of

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Part

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98,

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and

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where

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there

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might

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be

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more

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than

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one

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fuel

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type

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fed

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to

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the

...

same

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combustion

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unit,

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can

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the

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Tier

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2

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method

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be

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used

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to

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calculate

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emissions

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by

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using

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measured

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HHV

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values

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of

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input

...

streams

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or

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a

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measured

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HHV

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of

...

the

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mixed

...

stream?

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A67. For fuels that are blended prior to combustion, you may: (1) use the weighted HHV value based on the relative proportion of each fuel in the blend and a weighted average CO2 emission factor from Table C-1; or (2) use the HHV value determined by collecting and analyzing a representative sample of the blended fuel and using a weighted average CO2 emission factor from Table C-1, based on the relative portion of each fuel in the blend. See 98.34(a)(3).

 

 

 

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Updated on

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Source: This question and answer was derived from a Legacy FAQ
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Approval / Publishing History: Version 1, approved by M. Hannan, 1/23/2013
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Expiration: none
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Relevant Subparts:  Subpart x
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