THE Η I G Η
COST OF BACK-PRESSURES
$21000/year
Just exactly how high the cost of back-pressure really is was recently proved in a Southern power station. Slime-fouling on condenser water side surfaces accumulated between plug cleanings to build back-pressure up from approximately 0.6" to a maximum of 1.1". That extra back-pressure on a 30000 K W base load unit boosted steam consumption an average of 7500 pounds per hour. At a cost of about $0.34 per thousand pounds and with the turbine op erating 24 hours per day 350 days per year, the cost of back-pressure figures out to be $21000 per year.
THE L O W COST
OF
CORRECTION:
$5000/year
Chlorination applied through the W & Τ De-Sliming Process, at a total annual cost of approximately $5000 including amortization and all operating expenses kept the condensers slimefree, eliminated the need for plug cleaning and reduced equipment outage time.
NET
$16000/year
IAVINGS:
Not only did chlorination make operations easier andmore effective, but the annual savings in steam alone amounted to $16000 — enough-to pay for the investment in less than two years. Your W&T Representative will be glad to make a study for you—without obligation, of course—to see if you, too, are paying the high cost of back-pressure.
WALLACE & PRODUCTS,
ΤIERNAN INC.
Manufa'cturers of C h l o r i n e \ηά Amcnonra Co,ntr.oi 'Apparatus Belleville 9, N e w Jersey · Represented in Principal Cities
2484
CHEMICAL
AND
ENGINEERING
NE W S
