Appendix 14
Equation (9) F_p - Adjustment factor for center of tunnel pitot tube placement
K_p - Pitot Tube Constant 34,97 m/sec
C_p - Pitot tube coefficient, dimentionless (assigned a value of 0.99)
mmVC Average velocity pressure in dilution tunnel, mm water
T_s K Absolute average gas temperature in the dilution tunnel
P_s mm Hg Absolute average gas static pressure in dilution tunnel
M_s g/g mole The dilution tunnel dry gas molecular weight (may be assumed to be 29 g/g mole)
V_s m/s Average gas velocity in the dilution tunnel
Equation (1) F_p - Adjustment factor for center of tunnel pitot tube placement
V_strav m/s Average gas velocity calculated after the multipoint Pitot traverse
V_scent m/s Average gas velocity at the center of the dilution tunnel calculated after the Pitot tube traverse
Equation (3) B_ws - Water vapor in the gas steam, proportion by volume (assumed to be 0.02 (2.0%))
V_s m/s Average gas velocity in the dilution tunnel
A m2 Cross-sectional area of tunnel
T_std K Standard absolute temperature, 293K
P_s mm Hg Absolute average gas static pressure in dilution tunnel
T_s K Absolute average gas temperature in the dilution tunnel
P_std mmHg Standard absolute pressure, 760 mm Hg
Q_std dscm/min Average gas flow rate in dilution tunnel
Equation (7) V_m dcm Volume of gas sample as measured by dry gas meter
L_p m3/min Leakage rate observed during the post-test leakcheck
L_a m3/min Maximum acceptable leakage rate for either a oretest og post-test leak-check, equal to 0.0003 m3/min
Min Total sampling time
V_mc -
K_1 K/mm Hg 0.3855 K/mm Hg
Y - Dry gas meter calibration factor
P_Bar mm Hg Barometric pressure at the sampling site.
mmVC Average pressure at the outlet of the dry gas meter or the avarage differential pressure across the orifice meter
T_m K Absolute average dry gas meter temperature
V_mc(std) dscm Volume of air sample measured by the dry gas meter, corrected to standard conditions
Equation (12) m_p mg mass of particulate from probe
m_f mg mass of particulate from filters
m_g mg mass of particulate from gaskets
m_n mg Total amount of particulate matter collected
Equation (13) K_2 g/mg 0.001
m_n mg Total amount of particulate matter collected
V_m(std) dscm Volume of gas sample measured by the dry gas meter, corrected to standard conditions
c_s g/dscm Consentration of particulate matter in tunnel gas, dry basis, corrected to standard conditions
Equation (15) c_s g/dscm Consentration of particulate matter in tunnel gas, dry basis, corrected to standard conditions
c_r g/dscm Consentration of particulate matter room air, dry basis, corrected to standard conditions
Q_std dscm/min Average gas flow rate in dilution tunnel
Min Total sampling time
E_T g Total particulate emissions
Equation (8) K_1 K/mm Hg 0.3855 K/mm Hg
V_mr dcm Volume of room air sampled as measured by dry gas meter
Y - Dry gas meter calibration factor
P_bar mm Hg Barometric pressure at the sampling site.
mmVC Average pressure at the outlet of the dry gas meter or the avarage differential pressure across the orifice meter
T_m K Absolute average dry gas meter temperature
V_mr(std) dscm Volume of room air sample measured by the dry gas meter, corrected to standard conditions
Equation (14) K_2 g/mg 0.001
m_r mg mass of particulate from the filter, filter gasket, and probe assembly from the room air blank filter holder assembly
V_mr(std) dscm Volume of room air sample measured by the dry gas meter, corrected to standard conditions
Equation (16) Min Total sampling time
V_mi dcm Volume of gas sample as measured by dry gas neter during each 10-min interval, i, of the test run
V_s m/s Average gas velocity in the dilution tunnel
T_m K Absolute average dry gas meter temperature
T_si K Absolute average gas temperature in the dilution tunnel during each 10-min interval, i, of the test run
V_m dcm Volume of gas sample as measured by dry gas meter
V_si dcm Volume of gas sampled as measured by dry gas meter during each 10-min interval, i, of the test run
T_s K Absolute average gas temperature in the dilution tunnel
T_mi K Absolute avarage dry gas meter temperature during each 10-min interval, i, of the test run
PR - Proportional Rate Variation - Calculated PR for each 10-min interval, i, of the test run
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