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The Secrets of Transformer Cooling
of pumps or fans. · ONAF or FA or Forced Air means that the cooling is aided by fans, but without any pumps to circulate. the oil. With both of these systems the oil circulates through the radiators or heat exchangers by. normal convection only. · OFAF or FOA or Forced Oil and Air mean that the system...
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Cooling with Augmented Heated and Cooled Seats (.pdf)
. consists of Peltier element or thermoelectric module with. a fan embedded in the seat. These units typically consist. Heating and cooling automotive seats are a relatively. of one or more thermoelectric (TE) modules, heat. new technology that delivers conditioned air to the. exchangers, and fans...
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Cooling Industrial Enclosures with Filter Fans (.pdf)
-to-water heat exchangers, and air. conditioners. There are design advantages and trade-offs for each of these climate control options. This. white paper will focus on cooling with filter fans, demonstrating why it may be beneficial to choose a fan over. other climate control options. A sample calculation...
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Improving Energy Efficiency in Pharmaceutical Manufacturing Operations Part I: Motors, Drives and Compressed Air Systems
have demonstrated an average payback period for ASDs of less than two years [11]. These four case studies included the installation of ASDs on cooling tower fans, ventilation equipment and a dust collector motor. Genentech has installed ASDs on variable air volume (VAV) air handlers in its Vacaville...
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Improving Energy Efficiency in Pharmaceutical Manufacturing Operations Part I: Motors, Drives and Compressed Air Systems
, changing gear ratios or changing operation to off-peak hours. Considered alternatives to compressed air, such as: air motors only for positive displacement; air conditioning fans instead of compressed air vortex tubes in cooling electrical cabinets; vacuum pumps instead of venturi methods...
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Drive Helps Gear Dyno Keep its Cool
, load torque. Such unwanted load-torque variations hurt test accuracy. Complex oil-to-water heat exchangers and cooling towers help but don't eliminate the heating problem. Also considered was an eddy-current drive and load absorber. But this arrangement also needs a cooling tower to dissipate heat...
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Air movers and coolers
as cooling. For a discussion of heat exchangers, see When fans are used to cool enclosures, they either draw air through the cabinet, or move it through an air-to-air heat exchanger. Although heat exchangers do not mix inside with outside air, they do pass heat to the environment. However, the technique...
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Improving Energy Efficiency in Pharmaceutical Manufacturing Operations
demonstrated an average payback period for ASDs of less than two years [11]. These four case studies included the installation of ASDs on cooling tower fans, ventilation equipment and a dust collector motor. Genentech has installed ASDs on variable air volume (VAV) air handlers in its Vacaville...
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Cool Electronics Hot A/C
of the heat transfer capacity (btu/hr) divided by the average electrical power consumption in Watts. This average power consumption, calculated as a weighted average of input power for a range of cooling conditions, represents the average consumption during a typical cooling season. The U.S. Dept...
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Field Applications: Keeping Your Enclosure Cool
generated by equipment within a cabinet is the single most important factor effecting equipment performance, reliability and failure. Having an effective cooling strategy can help in adequately dealing with heat dissipation. EC52Field Apps.qxd www.ECNMag.com · ECN · February 2005. 35. Enclosures...