Section Env-A 805.04 - CE Procedures(a) For the gas/gas method using a TTE, as described in Method 204, the CE shall be determined by the following procedure: (1) "CE" means the capture efficiency calculated as a decimal fraction;(2) "G" means the mass of VOC captured and delivered using TTE, obtained using Method 204C, or if a single flame ionization analyzer (FIA) device cannot be used simultaneously for Method 204D and Method 204C, Method 204B may be used for the determination of G;(3) "F" means the mass of fugitive VOC that escapes from TTE, obtained using Method 204D; and(4) CE shall be obtained by dividing G by the sum of G and F, as in the following equation: CE = G/(G + F)
(b) For the liquid/gas method using TTE, as described in Method 204, the CE shall be determined by the following procedure: (1) "CE" means the capture efficiency calculated as a decimal fraction;(2) "L" means the mass of liquid VOC input to process, obtained using Method 204A or Method 204F;(3) "F" the mass of fugitive VOC that escapes from a TTE, obtained using Method 204D; and(4) CE shall be means obtained by dividing the difference between L and F by L, as in the following equation: CE = (L - F)/L
(c) For the gas/gas method using as the enclosure the BE in which the affected source is located and in which G and FB, as defined in (c)(2), below, are measured while operating only the affected facility: (1) All fans and blowers in the BE shall be operated as they would under normal production; and(2) The CE shall be determined as follows: a. "CE" means the capture efficiency calculated as a decimal fraction;b. "G" means the mass of VOC captured and delivered to a control device, obtained using Method 204C, or if a single FIA device cannot be used simultaneously for Method 204E and Method 204C, Method 204B may be used for the determination of G;c. "FB" means the mass of fugitive VOC that escapes from the BE, obtained using Method 204E; andd. CE shall be obtained by dividing G by the sum of G and FB, as in the following equation: CE = G/(G + FB)
(d) For the liquid/gas method using as the enclosure the BE in which the affected source is located and in which L and FB, as defined in (d)(2), below, are measured while operating only the affected facility: (1) All fans and blowers in the BE shall be operated as they would under normal production; and(2) The CE shall be determined as follows: a. "CE" means the capture efficiency calculated as a decimal fraction;b. "L" means the mass of liquid VOC input to process, obtained using Method 204A or Method 204F;c. "FB" means the mass of fugitive VOC that escapes from the BE, obtained using Method 204E; andd. The CE shall be obtained by dividing the difference between L and FB by L, as in the following equation: CE = (L - FB)/L
N.H. Code Admin. R. Env-A 805.04
#7788, eff 10-31-02; ss by #9802, eff 10-31-10; ss by #12762, eff 5-1-19
Amended by Volume XXXIX Number 19, Filed May 9, 2019, Proposed by #12762, Effective 5/1/2019, Expires 5/1/2029.