Kelly Paffel and the Swagelok Energy Team are worldwide authorities in steam and condensate systems.

Archive for May 2009

 
 

Lithium Bromide Absorption Chillers

I was wondering if anybody has some experience with lithium bromide absorption chillers.  I work for Glatfelter, a pulp and paper mill located in Chillicothe, OH.  To reduce purchased electricity costs, we run more steam through our turbine generators than what is required by our end-users (pulp mill, paper machines).  Operating this way causes us to have excess 50psi extraction steam, which is currently vented to the atmosphere.  I have been working on a project to recover this waste steam.  The mill uses a significant amount of cooling water, and we currently do not have the ability to chill the water that we would like to have.  We have been looking into a 50psi condensing turbine generator to recover the vented steam, but this would require a significant amount of cooling water that is not readily available.  An absorption chiller could possible kill two birds with one stone, so to speak.  I am looking for more information on lithium bromide absorption chillers, or some other alternatives to recover this vented steam.  Any information that you can provide would be greatly appreciated.

Thanks,

Nick Wildey

Hospital Retrofit

hospital retrofit
They have more then 6 steam tanks and over 10 hot water systems in 2 energy centers
They pay for LPG fuel more then 2 Million $ annual
We like to find case study on hospitals that change the system and reduce the energy consumption
We like to get more information on cogeneration system, bourn the LPG to hi pressure stem – generate 2 MW electric powers
and then use it as steam
Do you know of any hospital that made it in the past?
We have budget for all the units that will return the investment with in 3 years

Any information that you can provide will help
Thanks…
Ofer Keren

Steam Distribution

What type of steam control will provide the highest turndown for a process application?

What type of steam trap do you recommended for heat transfer applications?

Maria Delgado
Industrial Engineer

Difference between digital and analalogue ultrasound testing units

Just wondering if there is a significant benefit to going with a digital ultrasound unit over an analogue unit?

Condensate Piping

The best method for improving steam system energy efficiency, reducing chemical costs, and reducing make-up water costs is to return the maximum quantity of condensate to the boiler plant.

 

There are several factors that impact the reliability, performance, longevity, and maintenance requirements for the condensate piping system. Some of these factors are listed below:

• Condensate line sizing that factors condensate liquid, and flash steam quantities.

• Location of the condensate line with respect to the process equipment.

• Locations of the condensate branch line connection into the main condensate headers.

• Insulation techniques

An important factor to increase overall steam system efficiency is to maximize the temperature of the returning condensate. This permits high thermal cycle efficiency for the overall steam system.

 

Read the full Best Practice:    http://www.plantsupport.com/download/csbp.pdf