belly_flow, belly_flow_scf, belly_flow_heat_scfm for ARS20009

Belly gas is where the customer takes liquid feed from the virgin tank TK_1100.

formula

• belly_flow = 1 if TE_1030 < -205.0 else 0
• belly_flow_scf = TK_1101Prev - TK_1101 if not isTowerActive and belly_flow
• belly_flow_heat_scfm_v2 = 342 if isTowerActive and belly_flow
• belly_flow_heat_scfm = (TK_1101Prev10min - TK_1101) / 10.0 - virgin_flow_to_customer if isTowerActive and belly_flow

during TK1101 fill belly_flow_heat_scfm = belly_flow_heat_scfm_v2 as delta for bulk Ar tank unreliable