Qualitative and quantitative parameters for assessing the properties of off-design coals and their behavior in real operating conditions of radiation, semi-radiation and convective conditions, taking into account their modes and design functions, have been obtained. The problem has been analyzed by methodology for conducting complex tests, measurements and processing of experimental data, as well as the results of experimental and computational studies of a boiler unit when operating on coals of various qualities.
The relevance of the work is due to the technical necessity and economic feasibility of conversion boiler units to combustion of non-design coals. Comprehensive research of the slagging intensity is the heating surfaces of the BKZ-420-140 boiler unit with solid slag removal at the Abakan CHP when burning non-project fuels. Also, the steam generators don’t need to be kept in hot standby for a quick startup, saving time and money.THE PURPOSE.
Their compact size allowed Setton Farms to install the two 125 bhp steam generators in the same space as two previous 50 bhp boilers. Factory-installed economizers offer fuel efficiency. With a higher steam quality, Clayton could provide the steam that Cohen needed.Ĭlayton generators are designed to have low blowdown rates, quick startup time and rapid response to changes in steam demand. The change provided additional steam capacity with 100 percent backup for Setton’s 24/7 operation. On the Setton Farms project, two Clayton Model SFG125M-1-FMB, 125 bhp low-NOx steam generators with a common 250 bhp vertical feedwater system were selected to replace the two old 50 bhp boilers. It was time for an upgrade.Ĭlayton generators are offered in outputs from 15-2,000 boiler horsepower (bhp). Lee Cohen, general manager of Setton Pistachio, remembered an article about Clayton steam generators, which can run at much higher TDS levels than conventional boilers and only need to be blown down about a 10th of the amount that Setton Farms was experiencing. The old boilers were maintenance-intensive and frequently required bottom blowdown for a large amount of total dissolved solids (TDS). Inability to produce steam wasn’t the only problem. If the facility kept using the same steam system, operators feared that they wouldn’t make enough steam to keep up with production. Setton Farms wanted to expand one of its processing plants while maintaining its efficiency/quality balance. Efficiency is key to staying competitive in a fast-growing market, but quality can’t be sacrificed in the name of proficiency without losing customers. The more pistachios processed, the more steam is required. Although pistachios are produced in a mostly dry process, they are pasteurized with high-quality steam. Ramping up production to meet demand brought with it a manufacturing challenge. By owning the growing, manufacturing and distribution arms of this organization, Setton has maintained consistent quality for more than 50 years.
It is one of the largest pistachio growers and producers in America. That investment paid off, resulting in Setton Pistachio of Terra Bella Inc., located in California’s Central Valley.