3.9.1 Used for the calculation of wet concentration from dry concentration according to 5.12.2 of this Code.
conc(wet) ・Kw,r・conc(dry)(2-54)
Note: Inthe following derivation, the symbols for the originally indicated variables differ from the symbol given in the abbreviations because of the names of the variables in the mentioned program, e.g.,Kwx =Kwexh=KWEXH.
3.9.2 The derivation of FFH considers dry intake air because fomula (2-17) handles water in the intake air separately.