Abstract
The present article describes the diagnostics of a compressor that is compressing a mixture of H2 and N2 on the basis of the results that were obtained by operational measurements of the flow rates and temperatures at selected compressor sites, as well as of the acoustic pressure levels during the full loading thereof. The obtained data were subsequently used to determine the limit conditions of the compressor operations in terms of the cooling capacity. A thermodynamic analysis of the compression of the H2/N2 gas mixture was carried out with subsequent heat and energy flow calculation and the determination of the minimum cooling water flow rate that is required to ensure the continuous compressor operations.
Highlights
Increased pressure within the society to use hydrogen technologies in the transport segment necessitates the search for solutions to partial problems regarding hydrogen production, as well as reduction of the energy consumption in the hydrogen production process
For the purpose of hydrogen storage in the form of metal hydrides, the absorption pressure is decreased below 1 MPa
Compressor failures frequently occur in the real operation of compressors
Summary
Increased pressure within the society to use hydrogen technologies in the transport segment necessitates the search for solutions to partial problems regarding hydrogen production, as well as reduction of the energy consumption in the hydrogen production process. Along with these requirements, it is necessary to solve hydrogen purification from undesired impurities [1] and the transformation of the chemical energy of the gas into electrical energy, for example, in fuel elements [2]. Compressor failures frequently occur in the real operation of compressors Such failures are usually caused by insufficient cooling or by a fabrication-related fault of any of the compressor’s components. The second reason is the financial loss that is incurred by the manufacturer if the device is faulty
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