Heat Transfer
Understanding Finned Heat Exchangers
Solid and serrated fins (Figure 1) are widely used as heat transfer surfaces in boilers and heaters. The use of finned tubes makes heat exchanger equipment compact. The fluegas pressure drop is also decreased relative to a comparable plain-tube design,…
Detection and Prevention of DP:DPO Fluid Leaks
The management of process plants requires understanding and applying the fundamental tenets of safe design, construction and operation of facilities. This overview summarizes best practices that have been developed to ensure the safest possible use of DP:DPO (diphenyl–diphenyl oxide) eutectic…
Producing Solar Process Heat with Fresnel Collectors in the CPI
Thermal energy accounts for around 70% of industry’s final energy consumption in Europe. Solar collectors can provide the majority of this industrial process heat. Although the application of solar collectors for industrial applications will depend on the application and the…
Correcting Improper Performance of Direct Fired Heaters
Occasionally, direct fired heaters that have operated satisfactorily for long periods of time subsequent to startup develop operating problems that do not allow for operation at design conditions, as specified in the manufacturers API data sheets for the heater. Performance…
Specifying Shell-and-Tube Heat Exchangers
Shell-and-tube heat exchangers are one of the most important and commonly used process equipment items in the chemical process industries (CPI). If you are working on a project during either the basic or the detailed engineering phase, there is a…
Boosting Energy Efficiency in Chemical Manufacturing: A Look at Cogeneration
Many chemical manufacturing processes require large amounts of energy, and chemical companies are faced with the constant challenge of determining how to use that energy as sustainably as possible. More and more chemical companies are prioritizing a range of energy…
Combined Heat and Power for the CPI: Modern Concepts
The continuing development of natural gas extraction from shale deposits, known simply as shale gas, is fueling the growth of simple- and combined-cycle power plants. Much coal-fired power is being replaced by these technologies. In addition, though, simple- and combined-cycle…
Use this light for boiler inspections
Larson Electronics The recently launched WALBL-2 x 1000WMH Boiler Light is a telescoping light tower with a folding boom that is designed to allow versatile deployment and high-output illumination. The light features a right-angle extension arm, wheeled base, and a…
A furnace system for processing carbon fibers
The carbon-fiber pilot line consists of an oxidation furnace, carbonization furnace and a graphitization furnace, The four-zone oxidation furnace operates at 325°C for stabilizing precursor fibers, and has a connecting two-step system for carbonization and graphitization at the required temperatures…
A clean steam separator for pristene processing
The CS10 Clean Steam Separator with enhanced surface finish has been engineered to overcome problems associated with wet steam and ensures the correct quality of steam is supplied to the point of use, thereby preventing damage to control valves and…