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Applying Inverters to Centrifugal Compressors in HVAC Chillers (.pdf)
When applying an inverter to centrifugal compressors on HVAC chillers, there are a number of factors to consider. For some compressors, lubricating oil circulation may be driven by the rotation of the compressor shaft itself, via a gear-driven pump arrangement. If you slow the motor speed
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Improving Energy Efficiency in Pharmaceutical Manufacturing Operations Part II: HVAC, Boilers and Cogeneration
consumption, and an 8% reduction in water consumption and wastewater discharge [12]. As a result, Pfizer saved roughly $175,000 per year through avoided oil, gas, and water purchases. Cogeneration The use of cogeneration in the U.S. pharmaceutical industry is still limited. Currently, most
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ABCs of Refrigeration Pressure Sensing
this technology from consideration in some applications. In addition, the refrigerant may contain other materials. For example, there are always traces of compressor oil and possibly small amounts of water and other contaminants that may be incompatible with the O-ring. Refrigeration piezoresistive
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Proper Relief Valve Fire Case Evaluation Using Dynamic Simulation Tools Versus API 521 Recommended Practice (.pdf)
a special case encountered while. performing a refinery relief valve evaluation project. A pool fire. scenario is near a large bank of stacked horizontal heat. exchangers used in a chiller unit. The solvent-oil mixture has a. large boiling point variation. Also, these heat exchangers have. a small
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The ARMEX/ACCUSTRIP Process and the Food Processing Industry: a Perfect Match
, the ARMEX/ACCUSTRIP process has replaced all of the labor-intensive acid-based compounds previously used on hard-to-clean areas. Allen's sanitation crew has used ARMEX Blast Media to remove oil, grease, and process residue from aluminum chillers, eviscerating machines, stainless steel shackles, black
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Back to ListCustom Cooling System Economics
systems that will work for use in separate locations versus manufacturing one that is universal. Compatibility with Specific Coolants. A standard modular cooling system is compatible with a wide range of coolants, including water, deionized water, oil, and ethylene glycol solutions. The standard LCS
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Algae Automation
Producers are now taking baby steps toward mechanized bioreactors in the hope of producing mass quantities of fuel based on algae. Algae-oil production is at the experimental stage but firms working in this area hope to field production ready equipment later on this year. Wikipedia page on algae
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Hot tips for cool enclosures
dust from entering the enclosure. Chillers can be used to cool enclosures as well as fluids like oil and water in laser-cutting applications and machine-tool industries. Cooling capacity ranges from 3,500 up to 410,000 Btu. Today's industry mantra is to design products that are smaller, faster