Home › Forums › Coking › injection steam › RE: injection steam
March 31, 2012 at 1:29 am #4661
maintaining same flow in each pass of coker heater is little difficult due to constarints like tube skin temerature and inlet pressure will be different for each pass. if you implement pass balancing in dcs it may need manual intervention like bias value (mainly at the end of run). Normally this pass balancing is implemented in APC which takes care of these constraints.