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ID number:270963
 
Evaluation:
Published: 19.04.2007.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

uzdevums. Elektriskais sildītājs vienā stundā uzsilda M kg gaisa no temperatūras t1 0C uz t2 0C. Atrast sildītāja elektrisko jaudu.
5. Uzdevums. Elektrosildītājs ar ražīgumu pie 300C Vm3/h uzsilda gaisu no t1 0C uz t2 0C. Gaisa siltumietilpība cpm=1.006kJ/kgK, barometriskais spiediens pb=760mmHg. Atrast patērēto siltuma daudzumu 1m3 uzsildīšanai un sildītāja jaudu.
6.uzdevums. Karno cikls noris no tmax un pmax uz tmin un pmin. Darba ķermenis gaiss ar masu 1kg. Aprēķināt cikla raksturīgo punktu parametrus, iegūto darbu un termisko lietderības koeficientu.…

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