Where:
CGT = total concentration of TOC or organic HAP in vented gas stream, average of samples, dry basis, ppmv
CGSi, j = concentration of sample components in vented gas stream for sample j, dry basis, ppmv
n = number of compounds in the sample
m = number of samples in the sample run.
Where:
Cc = concentration of TOC, total organic HAP, or total HCl and chlorine corrected to 3 percent oxygen, dry basis, ppmv
Cm = total concentration of TOC, total organic HAP, or total HCl and chlorine in the vented gas stream, average of samples, dry basis, ppmv
%O2d = concentration of oxygen measured in vented gas stream, dry basis, percent by volume.
Where:
Ca = corrected outlet TOC, total organic HAP, or total HCl and chlorine concentration, dry basis, ppmv
Cm = actual TOC, total organic HAP, or total HCl and chlorine concentration measured at control device outlet, dry basis, ppmv
Va = total volumetric flow rate of affected streams vented to the control device
Vs = total volumetric flow rate of supplemental gases.
Where:
E = mass of HAP emitted
Pi = partial pressure of the individual HAP
V = volume of gas displaced from the vessel
R = ideal gas law constant
T = temperature of the vessel vapor space; absolute
MWi = molecular weight of the individual HAP
Where:
E = mass of HAP emitted
V = purge flow rate at the temperature and pressure of the vessel vapor space
R = ideal gas law constant
T = temperature of the vessel vapor space; absolute
Pi = partial pressure of the individual HAP
Pj = partial pressure of individual condensable compounds (including HAP)
PT = pressure of the vessel vapor space
MWi = molecular weight of the individual HAP
t = time of purge
n = number of HAP compounds in the emission stream
m = number of condensable compounds (including HAP) in the emission stream.
Where:
E = mass of HAP vapor displaced from the vessel being heated
(Pi)Tn = partial pressure of each HAP in the vessel headspace at initial (n = 1) and final (n = 2) temperatures
Pa1 = initial noncondensable gas pressure in the vessel, as calculated using Equation 13 of this subpart
Pa2 = final noncondensable gas pressure in the vessel, as calculated using Equation 13 of this subpart
[DELTA]- = number of moles of noncondensable gas displaced, as calculated using Equation 12 of this subpart
MWHAP = The average molecular weight of HAP present in the vessel, as calculated using Equation 14 of this subpart:
n = number of HAP compounds in the displaced vapor
Where:
[DELTA]- = number of moles of noncondensable gas displaced
V = volume of free space in the vessel
R = ideal gas law constant
Pa1 = initial noncondensable gas pressure in the vessel, as calculated using Equation 13 of this subpart
Pa2 = final noncondensable gas pressure in the vessel, as calculated using Equation 13 of this subpart
T1 = initial temperature of vessel contents, absolute
T2 = final temperature of vessel contents, absolute
Where:
Pan = partial pressure of noncondensable gas in the vessel headspace at initial (n = 1) and final (n = 2) temperatures
Patm = atmospheric pressure
(Pj)Tn = partial pressure of each condensable volatile organic compound (including HAP) in the vessel headspace at the initial temperature (n = 1) and final (n = 2) temperature
Where:
MWHAP = average molecular weight of HAP in the displaced gas
(Pi)Tn = partial pressure of each HAP in the vessel headspace at the initial (T1) and final (T2) temperatures
MWi = molecular weight of each HAP
n = number of HAP compounds in the emission stream
Where:
E = mass of HAP vapor displaced from the vessel being heated
Navg = average gas space molar volume during the heating process, as calculated using Equation 16 of this subpart
PT = total pressure in the vessel
Pi, 1 = partial pressure of the individual HAP compounds at T1
Pi, 2 = partial pressure of the individual HAP compounds at T2
MWHAP = average molecular weight of the HAP compounds, as calculated using Equation 14 of this subpart
nHAP, 1 = number of moles of total HAP in the vessel headspace at T1
nHAP, 2 = number of moles of total HAP in the vessel headspace at T2
m = number of HAP compounds in the emission stream.
Where:
Navg = average gas space molar volume during the heating process
V = volume of free space in vessel
PT = total pressure in the vessel
R = ideal gas law constant
T1 = initial temperature of the vessel contents, absolute
T2 = final temperature of the vessel contents, absolute
Where:
nHAP, 2 = number of moles of total HAP in the vessel headspace at T2
nHAP, 1 = number of moles of total HAP in the vessel headspace at T1
V = volume of free space in vessel
R = ideal gas law constant
T1 = initial temperature of the vessel contents, absolute
T2 = final temperature of the vessel contents, absolute
Pi, 1 = partial pressure of the individual HAP compounds at T1
Pi, 2 = partial pressure of the individual HAP compounds at T2
n = number of HAP compounds in the emission stream.
Where:
nHAP = moles of HAP vapor in the vessel
Pi = partial pressure of each HAP in the vessel vapor space
V = free volume in the vessel being depressurized
R = ideal gas law constant
T = absolute temperature in vessel
n = number of HAP compounds in the emission stream
Where:
n1 = initial number of moles of noncondensable gas in the vessel
n2 = final number of moles of noncondensable gas in the vessel
V = free volume in the vessel being depressurized
Pnc1 = initial partial pressure of the noncondensable gas, as calculated using Equation 21 of this subpart
Pnc2 = final partial pressure of the noncondensable gas, as calculated using Equation 22 of this subpart
R = ideal gas law constant
T = temperature, absolute
Where:
Pnc1 = initial partial pressure of the noncondensable gas
Pnc2 = final partial pressure of the noncondensable gas
P1 = initial vessel pressure
P2 = final vessel pressure
Pj* = vapor pressure of each condensable compound (including HAP) in the emission stream
xj = mole fraction of each condensable compound (including HAP) in the liquid phase
m = number of condensable compounds (including HAP) in the emission stream.
Where:
nHAP, e = moles of HAP emitted
nHAP, 1 = moles of HAP vapor in vessel at the initial pressure, as calculated using Equation 18 of this subpart
nHAP, 2 = moles of HAP vapor in vessel at the final pressure, as calculated using Equation 18 of this subpart
n1 = initial number of moles of noncondensable gas in the vessel, as calculated using Equation 19 of this subpart
n2 = final number of moles of noncondensable gas in the vessel, as calculated using Equation 19 of this subpart.
Where:
E = mass of HAP emitted
nHAP, e = moles of HAP emitted, as calculated using Equation 23 of this subpart
MWHAP = average molecular weight of the HAP as calculated using Equation 14 of this subpart
Where:
V = free volume in vessel being depressurized
R = ideal gas law constant
T = temperature of the vessel, absolute
P1 = initial pressure in the vessel
P2 = final pressure in the vessel
Pi = partial pressure of the individual HAP compounds
Pj = partial pressure of individual condensable VOC compounds (including HAP)
MWi = molecular weight of the individual HAP compounds
n = number of HAP compounds in the emission stream
m = number of condensable VOC compounds (including HAP) in the emission stream
Where:
E = mass of HAP emitted
PT = absolute pressure of receiving vessel or ejector outlet conditions, if there is no receiver
Pi = partial pressure of individual HAP at the receiver temperature or the ejector outlet conditions
Pj = partial pressure of individual condensable compounds (including HAP) at the receiver temperature or the ejector outlet conditions
La = total air leak rate in the system, mass/time
MWnc = molecular weight of noncondensable gas
t = time of vacuum operation
MWHAP = average molecular weight of HAP in the emission stream, as calculated using Equation 14 of this subpart, with HAP partial pressures calculated at the temperature of the receiver or ejector outlet, as appropriate
n = number of HAP components in the emission stream
m = number of condensable compounds (including HAP) in the emission stream.
Where:
V = volumetric flow rate of gas evolution
Wg = mass flow rate of gas evolution
R = ideal gas law constant
T = temperature at the exit, absolute
PT = vessel pressure
MWg = molecular weight of the evolved gas
Where:
E = mass of HAP emitted
B = mass of dry solids
PS1 = HAP in material entering dryer, weight percent
PS2 = HAP in material exiting dryer, weight percent.
Where:
E = mass of HAP emitted
[DELTA][ETA] = moles of noncondensable gas displaced
PT = pressure in the receiver
Pi = partial pressure of the individual HAP at the receiver temperature
Pj = partial pressure of the individual condensable VOC (including HAP) at the receiver temperature
n = number of HAP compounds in the emission stream
MWHAP = the average molecular weight of HAP in vapor exiting the receiver, as calculated using Equation 14 of this subpart
m = number of condensable VOC (including HAP) in the emission stream
Where:
E = mass of HAP vapor emitted
Vnc1 = initial volume of noncondensable in the vessel, corrected to the final pressure, as calculated using Equation 31 of this subpart
Vnc2 = final volume of noncondensable in the vessel, as calculated using Equation 32 of this subpart
Pi = partial pressure of each individual HAP at the receiver temperature
Pj = partial pressure of each condensable VOC (including HAP) at the receiver temperature
PT = receiver pressure
T = temperature of the receiver, absolute
R = ideal gas law constant
MWHAP = the average molecular weight of HAP calculated using Equation 14 of this subpart with partial pressures determined at the receiver temperature
n = number of HAP compounds in the emission stream
m = number of condensable VOC (including HAP) in the emission stream
Where:
Vnc1 = initial volume of noncondensable gas in the vessel
Vnc2 = final volume of noncondensable gas in the vessel
V = free volume in the vessel being depressurized
Pnc1 = initial partial pressure of the noncondensable gas, as calculated using Equation 33 of this subpart
Pnc2 = final partial pressure of the noncondensable gas, as calculated using Equation 34 of this subpart
PT = pressure of the receiver
Where:
Pnc1 = initial partial pressure of the noncondensable gas in the vessel
Pnc2 = final partial pressure of the noncondensable gas in the vessel
P1 = initial vessel pressure
P2 = final vessel pressure
Pj = partial pressure of each condensable VOC (including HAP) in the vessel
m = number of condensable VOC (including HAP) in the emission stream
Where:
Cij, Coj = concentration of sample component j of the gas stream at the inlet and outlet of the control device, respectively, dry basis, ppmv
Ei, Eo = mass rate of total organic HAP or TOC at the inlet and outlet of the control device, respectively, dry basis, kg/hr
Mij, Moj = molecular weight of sample component j of the gas stream at the inlet and outlet of the control device, respectively, g/gmole
Qi, Qo = flow rate of gas stream at the inlet and outlet of the control device, respectively, dscmm
K2 = constant, 2.494 * 10-6 (parts per million)-1 (gram-mole per standard cubic meter) (kilogram/gram) (minute/hour), where standard temperature is 20 °C.
Where:
R = control efficiency of control device, percent
Ei = mass rate of total organic HAP or TOC at the inlet to the control device as calculated under paragraph (d)(l)(i)(A) of this section, kilograms organic HAP per hour
Eo = mass rate of total organic HAP or TOC at the outlet of the control device, as calculated under paragraph (d)(1)(i)(A) of this section, kilograms organic HAP per hour.
Where:
HAPreduced = the annual HAP emissions reduction required by add-on controls, kg/yr
HFbase = the baseline HAP factor, kg HAP consumed/kg product
RP2 = the fractional reduction in the annual HAP factor achieved using pollution prevention where RP2 is [GREATER THAN EQUAL TO]0.5
VOCreduced = required VOC emission reduction from add-on controls, kg/yr
VFbase = baseline VOC factor, kg VOC emitted/kg production
VFP2 = reduction in VOC factor achieved by pollution prevention, kg VOC emitted/kg production
VFannual = target annual VOC factor, kg VOC emitted/kg production
Mprod = production rate, kg/yr
Debits and all terms of Equation 40 of this subpart are in units of Mg/month
Where:
EPViU = uncontrolled emissions from process i calculated according to the procedures specified in paragraph (h)(5)(ii) of this section
EPViA = actual emissions from each Group 1 process i that is uncontrolled or is controlled to a level less stringent than the applicable standard. EPViA is calculated using the procedures in paragraph (h)(5)(ii) of this section
ESiU = uncontrolled emissions from storage vessel i calculated according to the procedures specified in paragraph (h)(5)(iii) of this section
ESiA = actual emissions from each Group 1 storage vessel i that is uncontrolled or is controlled to a level less stringent than the applicable standard. ESiA is calculated using the procedures in paragraph (h)(5)(iii) of this section
EWWiC = emissions from each Group 1 wastewater stream i if the standard had been applied to the uncontrolled emissions. EWWiC is calculated using the procedures in paragraph (h)(5)(iv) of this section
EWWiA = actual emissions from each Group 1 wastewater stream i that is uncontrolled or is controlled to a level less stringent than the applicable standard. EWWiA is calculated using the procedures in paragraph (h)(5)(iv) of this section
n = the number of emission points being included in the emissions average; the value of n is not necessarily the same for process vents, storage tanks, and wastewater
Where:
EPV1iU = uncontrolled emissions from each Group 1 process i calculated according to the procedures in paragraph (h)(6)(iii)(A) of this section
EPV1iA = actual emissions from each Group 1 process i that is controlled to a level more stringent than the applicable standard. EPV1iA is calculated according to the procedures in paragraph (h)(6)(iii)(B) of this section
EPV2iB = emissions from each Group 2 process i at the baseline date. EPV2iB is calculated according to the procedures in paragraph (h)(6)(iii)(C) of this section
EPV2iA = actual emissions from each Group 2 process i that is controlled. EPV2iA is calculated according to the procedures in paragraph (h)(6)(iii)(C) of this section
ES1iU = uncontrolled emissions from each Group 1 storage vessel i calculated according to the procedures in paragraph (h)(6)(iv) of this section
ES1iA = actual emissions from each Group 1 storage vessel i that is controlled to a level more stringent that the applicable standard. ES1iA is calculated according to the procedures in paragraph (h)(6)(iv) of this section
ES2iB = emissions from each Group 2 storage vessel i at the baseline date. ES2iB is calculated according to the procedures in paragraph (h)(6)(iv) of this section
ES2iA = actual emissions from each Group 2 storage vessel i that is controlled. ES2iA is calculated according to the procedures in paragraph (h)(6)(iv) of this section
EWW1iC = emissions from each Group 1 wastewater stream i if the standard had been applied to the uncontrolled emissions. EWW1iC is calculated according to the procedures in paragraph (h)(6)(v) of this section
EWW1iA= emissions from each Group 1 wastewater stream i that is controlled to a level more stringent that the applicable standard. EWW1iA is calculated according to the procedures in paragraph (h)(6)(v) of this section
EWW2iB = emissions from each Group 2 wastewater stream i at the baseline date. EWW2iB is calculated according to the procedures in paragraph (h)(6)(v) of this section
EWW2iA = actual emissions from each Group 2 wastewater stream i that is controlled. EWW2iA is calculated according to the procedures in paragraph (h)(6)(v) of this section
n = number of Group 1 emission points that are included in the emissions average. The value of n is not necessarily the same for process vents, storage tanks, and wastewater
m = number of Group 2 emission points included in the emissions average. The value of m is not necessarily the same for process vents, storage tanks, and wastewater
D = discount factor equal to 0.9 for all credit-generating emission points except those controlled by a pollution prevention measure, which will not be discounted
Where:
EPV1iA = actual emissions from each Group 1 process i that is controlled to a level more stringent than the applicable standard
EPV1iU = uncontrolled emissions from each Group 1 process i
Neff = nominal efficiency of control device or pollution prevention measure, percent
40 C.F.R. §63.1365