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Heat Transfer

Rotary Drying: Developing a Process in a Test Setting

Testing not only illustrates proof of process and provides other critical assurances, but it also reveals the parameters necessary to reliably yield consistent results Drying is an integral tool in pretreating and finishing bulk solids, which helps producers to meet…

Efficient cooling of die-cast components with hotspots

Demanding die-cast components, such as structural components in the automotive sector (megacastings), place special requirements on the temperature control, in particular on the cooling of so-called hotspots. The jetPulse system (photo) offers a reliable and economical solution for cooling such…

Achieving Balance in Combustion

New hardware combined with monitoring technologies can help optimize combustion now and in the carbon-conscious future Combustion has long been a delicate balancing act. Chemical processors want their combustion systems to be fuel efficient and available for use, while at…

Facts At Your Fingertips: Heat-Transfer Fluid System Venting

Heat transfer fluids (HTFs) provide heating and cooling of process equipment, including reactors, autoclaves, distillation columns, reboilers, mixers and dryers. HTF system designs should provide for effective system venting, both of residual water at startup and of degradation products during…

Commercial debut for sand-based thermal-energy storage

Last month, operation began at Polar Night Energy Oy’s (Tampere, Finland; www.polarnightenergy.com) first commercial sand-based thermal-energy storage system. The thermal storage system, which is located at the Vatajankoski power plant, is now producing low-emission district heating to the city of…

BASF and MAN Energy Solutions enter into partnership for construction of one of the world’s largest heat pumps in Ludwigshafen

BASF SE (Ludwigshafen) and MAN Energy Solutions SE (Augsburg, both Germany) have entered into a strategic partnership to pursue the construction of an industrial-scale heat pump at the BASF site in Ludwigshafen. This project is intended to make an important…

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New design allows countercurrent heat exchange with hard-to-process slurries

Countercurrent heat-exchange with difficult slurries, such as those of mineral ore or stringy vegetables, has not been possible because suspended solids pack and foul the shell of shell-and-tube designs and plug the passages in plate-and-frame units. Now, a recently patented…

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More Specification Tips to Maximize Heat Transfer

Presented here are practical points to help in the selection of plate-and-frame and air-cooled heat exchangers With a wider variety of heat exchangers to choose from than ever before, there are a number of variables to be considered when assessing…

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Improve Energy Efficiency Using Heat Pumps

Heat pumps are an efficient way to provide space and process heating. Information on their types, and how to assess their potential benefits is provided here Approximately 40% of the energy that is used in buildings in the U.S. goes…

This heat exchanger provides 330°F air for drying process

The custom designed three-stage heat exchanger (photo) will be used to increase temperature of a 25,000 std. ft3/min airflow from 50°F to 330°F using 145 psig steam. Each stage is nearly 7 ft tall and 8 ft wide. Heated air…