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  • Users: Ahmedv
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  1. Ahmedv

    Steam Surface Condensers

    Hi Sorry, I made a typo on my last posting "I dont expect dramatic drop in vacuum, unless there is a dramatic CHANGE in inlet water pressure." I agree with Poetix99's assessment of the possible cause. More information is required in order to diagnose the real cause. In our vacuum...
  2. Ahmedv

    Steam Surface Condensers

    Hi With the flow constant, the vacuum condenser can be imagined as a water heater removing x KW of heat. An increase in inlet water temp results in a reduction in the KW removed and subsequent reduction of vacuum. The relationship is purely thermodynamic and is steady, I dont expect dramatic...
  3. Ahmedv

    Steam Surface Condensers

    Hello Patrick When you say that the inlet temperature increases, please advise exactly which temp you are referring to, ie is it the inlet water temp or the inlet steam temperature. Ahmed Vawda Process Engineer Al Khaleej Sugar - Dubai avawda@aksugar.co.ae
  4. Ahmedv

    Psychrometric Chart (SI units)

    HI there I am also interested in an excel type spread sheet and would like to know if you find one. In the mean time I use an on-line calculator http://www.sugartech.co.za/whatsnew.php3 Ahmed Vawda Process Engineer Al Khaleej Sugar - Dubai avawda@aksugar.co.ae
  5. Ahmedv

    Portable Flow Meters

    Hi If you are looking for a reliable and simple "intrusive" meter, I recommend a vane type, which I use for measuring gas and liquid flow. Ive even used it to measure the flow of sub atmospheric steam. http://www.hoentzsch.com/English/body_english.html Good Luck Ahmed Vawda Process...
  6. Ahmedv

    Steam quality from a boiler

    Hi You need to use the Souders-Brown equation to calculate entrainment in your system. Go to Amistco.com, they explain it nicely. Regards Ahmed Vawda Process Engineer Al Khaleej Sugar - Dubai avawda@aksugar.co.ae
  7. Ahmedv

    Pressure Fluctuations

    Hello The pressures youve quoted are extremely high. Is this pressure reaching the end user? There are gadgets that can absorb minor shocks in water reticulation piping, and these have been fairly successful in preventing potable piping system failures. Regards Ahmed Vawda Process Engineer Al...
  8. Ahmedv

    Fire tube boiler pitting

    Hi Please provide more details. Is it the water side you are having problems with? Chemical treatment, pressure, temp fuel type , Steaming rate etc Regards
  9. Ahmedv

    water filtration

    Hi I went into altavista.com and typed filters. I got 900,000 sites, off course you'd have to ignore filters for other products, like light, air etc, but there are the popular companies there including some water treatment specialists who can help you. Some of the filter companies you could...
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