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Showing 1 to 8 of 8 for “"Air-compressors."”.
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A Comparison of Two Air Compressors for PEM Fuel Cell Systems
… and water balance characteristics. A variety of compressors are being developed for fuel cell applications. Two compressor and expander technologies are discussed in this paper: the Opcon 1050 positive displacement twin-screw compressor and expander, and a Honeywell turbocompressor and expander. …
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Fault diagnosis and prediction in reciprocating air compressors by quantifying operating parameters
… the internal condition of a reciprocating air compressor. Using only measured load torques and shaft dynamics, pressures, temperatures, flow rates, leakages, and heat transfer conditions are quantified to within 5%. The load torque acting on the rotor of the machine is shown to be a …
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A transient fluid and thermodynamic model of a compressed air system
Air compressors are significant energy users in nearly every industrial facility. Air compressors have become a primary focus of industrial energy audits because they are vital for production processes but are very energy inefficient machines. Industrial energy auditors often perform a detailed …
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Analyzing Compressed Air Demand Trends to Develop a Method to Calculate Leaks in a Compressed Air Line Using Time Series Pressure Measurements
Compressed air is a powerful source of stored energy and is used in a variety of applications varying from painting to pressing, making it a versatile tool for manufacturers. Due to the high cost and energy consumption associated with producing compressed air and it’s use within industrial …
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Development of a Novel Air Sparging Device
… conditions assisted by the use of various air sparging technologies. High performance air spargers increase the probability of collision and attachment between air bubbles and particles, thereby improving recovery of fine and coarse mineral particles otherwise misplaced to the tailings …
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Thermal Overload Capabilities of an Electric Motor and Inverter Unit Through Modeling Validated by Testing
… AC induction motor to drive automotive fuel cell air compressors. As one part of the development, thermal considerations and the cooling system are detailed in this paper. The motor and inverter are packaged in one unit with the heat sink in the middle. The heat sink is a cold chamber designed to …
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Modeling and Experimental Validation of Disc and Reed Style Check Valves for Hydraulic Applications
… modeling research has focused on applications in air compressors and internal combustion engines, where the working fluid has low density, viscosity, and bulk modulus. However, in a hydraulic system, the fluid – namely oil – is dense, viscous, and stiff, contributing additional physical effects …
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Cost Savings Realized Through Proper Sizing of an Excessive Instrument Air System.
… was to determine if installing a smaller air compressor could reduce the electrical usage of a large semiconductor manufacturing plant. A 200 horsepower Atlas Copco compressor was installed with the existing 500 horsepower Ingersoll-Rand compressors. Testing was conducted during the …