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…
Washdown-ready, smooth-body gear units, motors and variable frequency drives (photo) bring an innovative alternative to expensive, bulky stainless steel, while nsd tupH provides these units with even greater protection for food. The nsd tupH sealed-surface conversion system is not a…
The new NGMs 1–3 range of nitrogen generators (photo) features membrane technology and offers a highly efficient, compact and simple on-site solution for low-flow N2 requirements, with the added benefits of minimal maintenance and operational costs. There are three models…
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…