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Heat Transfer

Preventing Fires in Thermal Oil Heat Transfer Systems

PREVENTING FIRES IN THERMAL OIL HEAT TRANSFER SYSTEMS  PDF DOWNLOAD AT BOTTOM OF PAGE Thermal fluids have proven exceptionally safe in a wide range of industries. However, it is difficult to completely prevent fires in these systems because the necessary…

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New Ways to Deal With Old Heat-Transfer Issues

New developments in heat exchangers solve common problems and enhance performance Chemical processors are no strangers to heat exchanger problems, such as corrosion, fouling and thermal expansion, which interfere with reliability of the units and adversely affect process uptime. Because…

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Insulating Heat-Transfer-Fluid Piping

Heat-transfer-fluid (HTF) system piping is insulated to reduce heat loss and prevent worker contact with hot surfaces. Insulated piping minimizes the effects of changes in ambient temperature to help ensure precise control of process temperature. Proper design of the HTF…

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Bio-based heat-transfer fluid for solar-thermal applications

A recently introduced heat-transfer fluid is made from corn sugar, rather than from petroleum. Known as So-Blu, the fluid was developed through a joint effort of Dupont Tate & Lyle BioProducts (Loudon, Tenn.; www.duponttateandlyle.com) and SolarUS Inc. (Branford, Conn.; www.solarus.com),…

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Shell-and-Tube Heat Exchangers: The Design Cycle

Following this step-by-step approach will ensure that the heat exchanger will perform as required when finally fabricated Shell-and-tube heat exchangers are among the most commonly used equipment in the chemical process industries (CPI), especially in petroleum refineries and chemical manufacturing…

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Superheater Problems in Steam Generators

Knowing the features of a good boiler will prevent problems associated with a poor design Oil- and gas-fired package steam generators (or boilers; Figure 1) are used in chemical plants, power plants, petroleum refineries and in cogeneration plants to generate…

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A very efficient heat exchanger for very hot applications

At the end of last year, Mino Ceramics Co. (Nagoya City, Japan; www.mino-ceramic.co.jp) began shipping its first commercial high-temperature heat exchangers, which were developed in a project by Thermal Management Materials and Technology Research Assn. (TherMAT, Tokyo, Japan; www.thermat.jp). Developed…

How To Safely Sample Fluids From Heat Transfer Systems

To ensure you get the most out of your heat transfer fluids throughout their lifetime, it is recommended to sample, test and analyze your fluids once a year. Be sure to look for a heat transfer fluid supplier that provides…

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Thermochemical regenerator system demonstrated in glass facility

A patented thermochemical regenerator system developed by Praxair, Inc. (Danbury, Conn.; www.praxair.com) has been demonstrated at its first industrial site, a glass-making facility in Mexico. The system, known as the Optimelt heat-recovery system, lowers fuel consumption in oxy-fuel furnaces, which…

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A booster bed for Circulating Fluidized-bed Combustors

The efficiency of circulating fluidized-bed (CFB) combustors can be significantly increased by substituting conventional bed material with an ilmenite-based bed material, according to researchers at Chalmers University of Technology (Gothenburg, Sweden; www.chalmers.se). Conventional CFB boilers use silica sand to evenly…