NR 440.62(6)(g)2.2. A thermocouple or any other equivalent device shall be used to monitor the presence of a pilot flame in the flare. NR 440.62(6)(g)3.3. The maximum permitted velocity for air assisted flares shall be computed using the following equation: where:
Vmax is the maximum permitted velocity, m/sec (ft/sec)
HT is the net heating value of the gas being combusted, MJ/scm (Btu/scf)
K1 is 8.706 m/sec for metric units and 28.56 ft/sec for English units
K2 is 0.7084 m4/(MJ-sec) for metric units and 0.087 ft4/(Btu-sec) for English units
NR 440.62(6)(g)4.4. The net heating value (HT) of the gas being combusted in a flare shall be computed using the following equation: where :
K is a conversion constant, 1.740 x 10-7 (g-mole) (MJ)/(ppm-scm-kcal) for metric units and 4.674 x 10-6 (g-mole) (Btu)/(ppm-scf-kcal) for English units.
Ci is the concentration of sample component “i”, ppm
Hi is the net heat of combustion of sample component “i” at 25°C and 760 mm Hg (77°F and 14.7 psi), kcal/g-mole
NR 440.62(6)(g)5.5. Method 18 and ASTM D2504-88 (reapproved 1993), incorporated by reference in s. NR 440.17 (2) (a) 31., shall be used to determine the concentration of sample component “i”. NR 440.62(6)(g)6.6. ASTM D2382-88 or D4809-95, incorporated by reference in s. NR 440.17 (2) (a) 30. and 61., shall be used to determine the net heat of combustion of component “i” if published values are not available or cannot be calculated. NR 440.62(6)(g)7.7. Method 2, 2A, 2C or 2D, as appropriate, shall be used to determine the actual exit velocity of a flare. If needed, the unobstructed (free) cross- sectional area of the flare tip shall be used. NR 440.62(7)(a)1.1. Each owner or operator subject to the provisions of this section shall comply with the recordkeeping requirements of this subsection. NR 440.62(7)(a)2.2. An owner or operator of more than one affected facility subject to the provisions of this section may comply with the recordkeeping requirements for these facilities in one recordkeeping system if the system identifies each record by each facility. NR 440.62(7)(b)1.1. A weather proof and readily visible identification, marked with the equipment identification number, shall be attached to the leaking equipment. NR 440.62(7)(b)2.2. The identification on a value may be removed after it has been monitored for 2 successive months as specified in sub. (3) (g) 3. and no leak has been detected during those 2 months. NR 440.62(7)(b)3.3. The identification on equipment except on valve may be removed after it has been repaired. NR 440.62(7)(c)(c) When each leak is detected as specified in subs. (3) (b), (c), (g), (h) and (4) (b) the following information shall be recorded in a log and shall be kept for 2 years in a readily accessible location: NR 440.62(7)(c)1.1. The instrument and operator identification numbers and the equipment identification number. NR 440.62(7)(c)2.2. The date the leak was detected and the dates each attempt to repair the leak.