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In steam turbine we sealing steam with two PSV one for sealing HP and LP side and other PCV is supply direct to surface condenser what’s is the purpose of second PCV ?

In Diesel unit what’s the important of radial spread DT and inlet/outlet DT in the fixed bed reactor?

Hi

Which is more functionality,more accurate and good for turning to connect temperature controller TC16A with fuel gas controller QC101 or with Low selector QY101B and Why? Thanks dear for your fast response

During AT under maintenance operator can take it in Manual and can enter the specific gravity manually.

Higeorgeverghese' I am agree with your comments As you said the QC101 should be pick up the resulting deviation with master controller TC16A.what is your expectations?which problems can be happened if Qc101 not linked with TC016A.Second question incase of QC handover for maintenance how we can...

Why there is logic trip for suction pressure High and low pressure? What is sequence if pressure is low or high?

Hi dear Still the unit under construction.I observed in this column no bypass but others absorber there is bypass.it has contacting method packing type. Thanks dear

In our unit Hydrocraker no bypass on LPG amine contractor.LPG inlet temperature is 44 degree Celsius and pressure is 25 bar enter at the bottom of the column and at the top lean amine enter to the column at temperature 25 degree Celsius and pressure is 34 bar. The inlet temperature for LPG and...

I think this Diagram is clear https://files.engineering.com/getfile.aspx?folder=7603ce49-58a9-46d6-8358-1d7d823e6dfa&file=50266CD6-5A48-4501-B3B5-502C7CD61539.jpeg

Product stripper bottom feed to fractionator feed furnace in the Hydrocracker unit.

Any one has idea how to to control Fractionator feed furnace multiple passes (8 passes)how to commissioning the flow during start up ?

Dear georgeverghese I notic from analyser it self one soft signal going as lower heating value and another as specific gravity. Why two signals is given ?

Any one can explain the control scheme (3 term ) level control in steam generator.How it’s working?

it’s not mentioned in the process manual Here the image for first stage feed and conversion

check the foundation for compressor . We faced this issue in our plant.

The F-1701 heater outlet temperature is measured by the dual temperature sensing element TE-11 (both measured values shall be displayed on the DCS screen). The first transmitter is used for the F-1701 heater firing control (TC-16A), while the second one is used for indication purpose only...

In Hydrocraker unit, two stages and full conversion.we are producing Heavy diesel,Light diesel ,kerosene and naphtha. how we know how much we are producing a product and how much conversion for each stage from total feed.