Abstracts

Engineering and manufacturing industries

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Thirty fuel cells serve U.S. defense bases

Article Abstract:

US Dept of Defense facilities in 17 states from Alaska to Florida are using fuel cells to provide them with electricity. Their manufacturer, ONSI Corp, has already sold 30 units to the agency since the first unit began operating in Apr 1994. Its applications include space heating, recovery of heat for domestic hot water and the supply of 200 kW of electricity. Among the fuel cells' main advantages are their low emissions, high efficiency, quiet operation, excellent power quality and cost-savings.

All Other Miscellaneous Electrical Equipment and Component Manufacturing, Fuel Cells & Thermic Generators

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Humidity control in bypass volume-control systems

Article Abstract:

The bypass volume-control system, a hybrid between a constant-volume and a variable-volume control system, provides an answer to the constant need to provide optimal environmental comfort at minimum costs. Such a system uses a constant-volume air-handling unit equipped with a bypass duct that permits fan operation at a constant volume while allowing variable-volume control at each individual zone.

Humidity Control Valves, Industrial Valve Manufacturing, Air conditioning equipment, Control valves

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Controlling particulates and air pollutants

Article Abstract:

Condensing wet electrostatic precipitators (WESPs) were determined to be the best equipment to use in controlling air pollutants and particulates in the design of a federal government laboratory for the US General Services Administration. The selected WESP technology is touted to be capable of filtering particulate matter that are as small as 0.01 micron at an efficiency rating of 99.99%.

Air Pollution Control Equip, Air Purification Equipment Manufacturing, Air pollution control equipment

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