It’s easy to take the breadth of information available to each of us today. Whether you want to learn more about the benefits of crop rotation, the sleeping habits of Australian shepherds or a refresher on the Reynolds number and the equation for flow in a pipe or tube, the answer is just a click away. But what do you do when what you seek is not more about the answer you know, but that intangible answer you know must be out there? You just don’t know the magic words to find it. For situations such as this, case histories are a great place to start. Reading the challenges another processor faced, and how they were resolved, is a great way to find a solution you may not have even realized you were seeking.
A few articles in this issue may spark inspiration. In “The Salsa Cooling Challenge,” a heat exchanger designer was tasked with developing a heat exchanger to chill salsa. The high viscosity of the salsa meant that a single, large exchanger would be difficult to clean with the salsa maker’s existing clean-in-place system. Instead, the designer arranged three heat exchangers in series with jumpers to carry the cooling water during operations and allow CIP between product changeovers.
Elsewhere, an iron and steel processor was struggling with inadequate heat transfer, this time due to ineffective filtration caused by small particulate in the cooling water. As explained in “Automatic Self-Cleaning Strainer Takes the Heat,” the existing filtration system could not keep up with removing the small particles, leading to clogging, fouling and failed flow rate valves. After a thorough evaluation of the cooling water flow and the conditions in the plant, an automatic self-cleaning strainer with a perforated, convoluted element was recommended. The new filtration system resolved the concerns with the recycling water intake piping system.
For another user of cooling water, the challenge wasn’t filtration. Instead, the troubles were related to scale, corrosion, microbial growth and low cycles of concentration. “Water Technology for Saving Water” explains how an electrochemical water treatment technology often employed in process water applications was used to help a federal facility in Georgia save thousands of gallons of water and cut operating costs.
While Process Cooling publishes case histories, it also spends considerable time lining up experts to prepare articles providing suggestions, advice and help, and in general, ways to do things better or easier or faster or more cost-effectively at your company.