Ross focuses on the design and construction of innovative mixing, blending, drying and dispersion equipment for liquid/solid, liquid/liquid and solid/solid applications. The company’s diverse line of equipment is used throughout the process industries to solve the most difficult processing problems.…
Oliver Prato becomes managing director of Beumer Sarl (Paris, France). David Allen, a chemical engineering professor at the University of Texas (Austin), is appointed to the Environmental Protection Agency (Washington, D.C.) Science Advisory Board. Iriss, Inc. (Sarasota, Fla.) elects Tim…
Push-to-connect in-line filters introduced This new line of in-line filters (photo) can be easily connected and disconnected for service on tubing applications. Designed with John Guest push-to-connect style fittings integrated into the Celcon plastic filter housing, this unique in-line filter…
This rupture disk features SAF technology The GCR-S reverse buckling disk (photo) uses SAF (structural apex forming) technology, which enables very low burst pressure to be achieved with excellent opening characteristics. An integral energy-absorbing hinge is located on the downstream…
Laminar Pipe Flow For steady flow in a pipe (whether laminar or turbulent), a momentum balance on the fluid gives the shear stress at any distance from the pipe centerline. In Equation (1), Φ = P + ρ gz. The…
In a fired thermal fluid heater, a thermal fluid is heated by the metal surfaces of a fired heater or fluegas heat-recovery exchanger. Generally, the heat input rate is controlled to achieve some desired bulk-fluid temperature exiting the heater. However,…
Organic-based thermal fluids provide relatively trouble-free service for significant periods of time. However, there comes a time when any fluid (either aromatic- or aliphatic-based) needs to be replaced. Since aromatic-based fluids generally cost more and are complicated to dispose of,…
Lubricant contamination in gearbox bearing housings can substantially reduce gear life. In critical applications, dual-face, magnetic bearing-protector seals will keep contamination out (Figure 1). Dual-face, magnetic bearing protectors are preferred in many difficult applications, such as wet cooling tower gearboxes,…
Engineers often need to fit experimental data to an empirical relationship for extrapolation or modeling without resorting to a full mathematical treatment based on physical principles or theory. The most widely used platform in science for doing this is MS…
The thermal conductivity of hydrocarbons is an essential parameter that needs to be known when designing heat transfer equipment. Presented here is a simple-to-use correlation that was developed for predicting thermal conductivities of liquid paraffin hydrocarbons, petroleum fractions and atmospheric…