Advice, field experience and news from the world of compressed air, vacuum and industrial cooling.
11Why a fixed-speed screw compressor paired with a variable-speed one is a winning combination in shift work: continuous supply, efficient handling of variable load, lower energy and maintenance costs.
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12Why a timely screw compressor overhaul pays off and what a Tehnogama overhaul covers: bearings and housing, seals, rotors, electrics, intake valve, cooler, minimum pressure valve and hoses.
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13Why refrigeration dryers and chillers must be leak-checked by a licensed technician, how often under the Serbian regulation (3, 30 and 300 kg of refrigerant), and what the leak test certificate means.
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14Owners of equipment using refrigerants must have it leak-checked every 12, 6 or 3 months depending on the amount (3, 30 or 300 kg). Fines for legal entities reach RSD 3,000,000.
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15Why compressed air systems lose pressure – leaks, oil contamination, faulty parts, flow problems – and seven strategies to keep pressure loss below 10% of compressor outlet pressure.
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16Five concrete steps to a more efficient compressed air system: demand analysis and leak measurement, system design, renewal, intelligent controls and heat recovery of up to 94%.
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17A fully autonomous mobile nitrogen station in a container: nitrogen from compressed air at lower cost than cryogenic technology, with little maintenance, fast payback and clear benefits for food production.
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18Leaks can account for up to 25% of compressed air consumption. How to detect them with an ultrasonic detector and how a 16.6% leak on a 37 kW compressor costs over €5,200 a year.
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19Why compressed air quality must be measured, which contaminants are measured (particles, dew point, oil aerosols), how to read the ISO 8573-1 classes and which OS 120, OS 520 and OS 130 instruments are used.
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