Sir,

In our naphtha fired MARK V Gas Turbines (starting Fuel HSD), we are using HITech as lubricant for Flow Divider. So we are having two HITech pumps. Generally HITEch flow will be 1/20000th of naphtha flow.

Is there any logic behind Naphtha to HSD Fuel C/o Logic linked to HITECH system.

Thank U

 

Sir,

Your question is not really clear.

The usual reason for adding a lubricant to naptha is to lubricate the liquid fuel pump and flow divider since naptha has a low lubricity.

As far as logic, if naptha is being burned, then a lubricant should be added (if the pumps and flow divider aren't rated for operation on naptha; some are, some aren't).

I would expect the injection system to try to inject lubricant at a rate that matches fuel flow, but that's not always done since usually the only signal the lubricant injection system gets is to let it know fuel is flowing, not how much fuel is flowing.

Does the lubricant injection system at your site monitor fuel flow-rate and adjust its output accordingly?

Have you asked the supplie of the equipment this question?

Have you read the manuals supplied with equipment?

 

Hitec additive flow is maintained generally around 60 PPM.

Logics related to C/O from Naptha to HSD are L71FA - Hitec tank level low & L86FA - Hitec skid trouble

In the event of occurene of either of them, the coil L4AD would be latched. This would result in change-over of fuel.

That is 3-way valve will change over to HSD side and machine would swith over to HSD, if the low pressure HSD signal is not activated

Hope this would suffice your query

MOB