Presented here are equations governing heat transfer in a moving-bed heat exchanger, along with a numerical method for solving them Moving-bed heat exchangers (MBHE) represent an efficient method for heating or cooling bulk-solid materials compared to other technologies, such as…
Understanding the implications of adiabatic and isothermal flow assumptions is necessary to have confidence in when to use such assumptions Every engineer uses assumptions because every analysis has an overabundance of variables to consider. Often, there are just too many…
Airset regulators are seemingly simple devices, but care must be taken to ensure the right devices are specified, particularly in safety instrumented systems Chemical plants and other heavy industrial facilities typically contain many pneumatically controlled valves, actuators and instruments. Airset…
Valve World Expo Düsseldorf will take place in Halls 1, 3 and 4 of the Düsseldorf, Germany fairgrounds from December 1 to 3, 2020. In Hall 1, the Valve World Conference will also run in parallel with the exposition. Here…
The new Rosemount 8800 Quad Vortex flowmeter (photo) is specifically designed to meet stringent safety standards in environments and applications that require safety instrumented systems (SIS). The flowmeter is said to be the first in the industry with quadruple sensors…
Genesis Network (photo) is a new system that provides site-wide operational awareness and supervisory control of heat-trace systems. Users can easily monitor, maintain and troubleshoot even the largest heat-trace systems that may include over 10,000 heat-trace circuits. The Genesis Network…
This company has expanded its HiLobe series Roots pumps (photo), which are available in a broad spectrum of pumping speeds and applications. HiLobe Roots pumps are particularly suited for rapid evacuations (lock chambers or leak-detection systems) and for general coating…
Two new models have been added to this company’s Sitrans LR100 series of 80-GHz radar transmitters (photo). These high-frequency, compact transmitters deliver reliable measurements even in challenging environments. Sitrans LR140 features 4–20-mA simplicity and is configured via Bluetooth wireless technology…
The new CDS Series of non-metallic, curved-top motor-disconnect switches (photo) features a curved profile to eliminate standing water and minimize contaminant buildup in food processing and cleanroom operating environments. In addition to its curved profile, the CDS Series features a…
My Tech Support Portal (photo) provides continuous access to online resources and tools to perform immediate self-service and to manage their support and service cases. In addition to phone support, the My Tech Support Portal offers 24/7 access to a…