CMA010
Thanks for your response.The optimism relates to the assumption of feed to the reboiler having the same composition as normal operation. With this assumption, the heat input to the reboiler for most steam reboilers would stay same as normal duty. The fact that in this scenario both feed...
don1980
Thanks for your response. In most cases I have come across with steam reboilers, with a clean exchanger U value the reboiler duty does not get reduced when looking at the boilng point of normal bottoms liquid at relieving pressure vs steam condensing temperature at full steam supply...
vladrath,
Examples where simultaneous loss of feed and ovhd cooling/reflux can happen are:
1- Feed pump, reflux pump, and cooling water pumps are lost in a plant wide electric power scenario
2- Reflux pump/ovhd cooling are lost causing the column to over pressure and the resulting over pressure...
Appreciate learning about methodologies to use for calculation of relief load for a distillation column when both feed and overhead cooling/reflux are lost simultaneously. The standard unbalanced heat method of using the normal reboiler duty to vaporize top tray liquid seems too conservative...
Mike,
Thanks for your response in view of limited information I had supplied. Here is more eggs for the omlet.
The HPRT in question is a multistage "reverse" running pump that is fed from a high pressure Liquid/Vapor Separator Vessel. In normal operation liquid from the Separator flows to the...
Apreciate help with the following question.
What would be the most likely consequence if liquid flow to a hydraulic power recovery turbine used to drive a pump were to suddenly be lost and high pressure gas instead of liquid starts to flow through the HPRT?
Thanks
I posted this question back in January of 2013 but did not get a definitive response. I am trying again.
My question is how to calculate the flow rate of gas only blowthrough through a Hydraulic Power Recovery Turbine (HPRT)
The scenario is upon tripping of the unit feed pump say in a...
Is there a way to estimate the performance curve ( GPM vs. Head) of a pump used as hydraulic Power Recovery Turbine under no load condition starting from normal operating GPM vs. Head Curve?
Thanks
My question is how to calculate the flow rate of gas only blowthrough through a Hydraulic Power Recovery Turbine (HPRT)
The scenario is upon tripping of the unit feed pump say in a hydrotreater, liquid level in the high pressure separator vessel will be lost and high pressure gas will start to...
My question is how to calculate the flow rate of gas only blowthrough through a Hydraulic Power Recovery Turbine (HPRT?
The scenario is upon tripping of the unit feed pump say in a hydrotreater, liquid level in the high pressure separator vessel will be lost and high pressure gas will start...
