GAS REGULATOR SEAT TEMPERATURE DURING GAS TURBINE START-UP

Pressure regulators are to be employed at a gas-fired power station to reduce upstream gas pressures from a maximum of 15 MPa to approximately 3.5 MPa. Due to the Joule-Thompson effect, the resulting gas temperature drops could be in the region of 55°C. The dew-point temperature of the hydrocarbons (gas) flowing through is -15°C and the minimum ambient temperature of the area is -6°C. Thus the regulators could potentially be subjected to gas at -61°C at start-up. According to the valve manufacturer, temperatures as low as -20°C can be tolerated for some time, provided that condensation does not occur.
Share This:
Share This:
More Case Studies
You might also be interested in these CASE STUDIES
TURBINE PROTECTION – TWO PHASE FLOW REGIMES
The main challenge explored in this case study is root cause analysis of dynamically hazardous movements in the distillate lines to…
MCPHY WATER ELECTROLYSIS CYCLE
McPhy Energy Germany GmbH designs, develops, manufactures and sells technical systems and components for energy systems and auxiliaries…
UCT STEAM TURBINE PERFORMANCE PREDICTION
This case study demonstrates the ability of Flownex® to be used as a tool to develop, test and implement new correlations and methods…
RECOVERING GENERATION LOSSES DUE TO FAULTY AIR HEATER OPERATION
Faulty systems operation results in significant power generation losses. The purpose of this case study is to communicate a case where…
HALF STATION SHUTDOWN OUTAGE
This case study demonstrates how Flownex® can be used in evaluating the effectiveness of the maintenance work conducted…
GENERATOR SEAL OIL SYSTEM
Eskom power utility utilized Flownex® SE simulation capabilities to mitigate system shutdowns caused by Generator Hydrogen (H2) Seal ring failures…