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We have 3 GE Frame 9E machines control is of GE Mark-VIe. On each machine we have HRSGs. We want to control exhaust temperatures due to some limitations in metallurgy of our HRSGs. Normally machines are running on base load on Temperature control FSR.
TTRX is the reference value for IGV to operate for controlling of temperature values.
Algorithm that is used for the calculation of TTRXP (Primary Exhaust temperature control reference)
The primary exhaust temp. control reference is calculated as below:
TTRXP = TTKn_I - TTKn_S * (CPD - TTKn_C) + TTRXDSP + CT_BIAS + WQJG.
& for TTRXS (Secondary Exhaust temperature control reference is calculated as below:
TTRXS = TTKn_I - TTKn_M * (FSR - TTKn_K) + TTRXDSP + CT_BIAS + TNH_BIAS + WQJG.
Is this possible? Can we use (-ve real time values) for TTRXDSP so that it can limit exhaust temperature or if there is any other option available to limit exhaust temperature for the protection of HRSGs?
Best Regards,
Farhan Khan
[email protected]
TTRX is the reference value for IGV to operate for controlling of temperature values.
Algorithm that is used for the calculation of TTRXP (Primary Exhaust temperature control reference)
The primary exhaust temp. control reference is calculated as below:
TTRXP = TTKn_I - TTKn_S * (CPD - TTKn_C) + TTRXDSP + CT_BIAS + WQJG.
& for TTRXS (Secondary Exhaust temperature control reference is calculated as below:
TTRXS = TTKn_I - TTKn_M * (FSR - TTKn_K) + TTRXDSP + CT_BIAS + TNH_BIAS + WQJG.
Is this possible? Can we use (-ve real time values) for TTRXDSP so that it can limit exhaust temperature or if there is any other option available to limit exhaust temperature for the protection of HRSGs?
Best Regards,
Farhan Khan
[email protected]