The fouling characteristics of simulated cooling tower water flowing over a heated metallic surface has been studied. The bulk temperature of the water was maintained around 95°F. Mainly three different water qualities with respect to calcium hardness level were investigated. The pH was controlled by the addition of hydrochloric acid....
A systematic study of the fouling characteristics of organic fluids was conducted in an annular test section. The study consisted of four main parts. First, the effect of key factors such as surface temperature, velocity, concentration, and oxygen on fouling from the system styrene-heptane-polystyrene was investigated. While surface temperature increased...
Parallel solutions for two classes of linear programs are
presented. First we parallelized the two-phase revised simplex
algorithm and showed that it is possible to get linear improvement in
performance. The simplex algorithm is the best known algorithm for
solving linear programs, and we claim our result is the best...
Various antifoulant treatment programs and the
considerations necessary for the effective use of such
programs were examined.
Two different groups of tests, with and without
iron contamination, have been carried out on the
effectiveness of several of the state-of-the-art
copolymers (PA, HEDP, AA/HPA, AA/MA, SS/MA and AA/SA) in
the inhibition...
The fouling characteristics of cooling tower water
containing various corrosion inhibitors and other additives
on heat transfer surface have been investigated. Corrosion
inhibitors investigated included zinc-chromate and
phosphates. In addition, additives including polyacrylate
and phosphonate (HEDP and AMP) were used to determine their
effectiveness as antifoulants.
The tests were conducted...
The fouling characteristics of a desalted crude oil were investigated in a systematic
investigation. There are two main parts in this study, the dry bulk tests (dehydrated crude
oil) and the wet bulk tests (to which desalter brine was added). Three barrels of desalted
crude oil provided by Amoco Oil...
Reverse osmosis (RO) is being increasingly used in treatment of domestic
wastewater secondary effluent for potable and non-potable reuse. Among other
foulants, dissolved biopolymers, i.e., proteins and polysaccharides, can lead to
severe fouling of RO membranes. In this study, the roles of RO membrane surface
properties in membrane fouling by...
Marine biofouling is a major problem in many industries. Shipping has been afflicted with reduced vessel speed and hindered maneuverability due to organisms attaching since the dawn of sailing. To date, the primary method developed to prevent fouling is the application of biocide laden coatings with various release mechanisms. Mass...
