Príspevok
VARIABLE-SPEED COMPRESSOR RATINGS DISPLAYED WITHIN SINGLE THIRD-DEGREE POLYNOMIAL FUNCTION
DOI: 10.18462/iir.compr.2024.0608
Sekcia: Rotary, scroll, screw, ... compressors II
Stav prijatia: Nebol spracovaný
Autori
| Meno | Organizácia | |
|---|---|---|
| Tobias Guth, M.Sc. | Ruhr West University of Applied Sciences, Institute of Energy Systems and Energy Management Bottrop, 46236, Germany | |
| Gerhard Frei, Dipl.-Ing. (BA), MBA | COOLPLAN, Engineering Office for Refrigeration, Munich, 81249, Germany | |
| Mihaela Frei, Dipl.-Ing., M.Sc. | COOLPLAN, Engineering Office for Refrigeration, Munich, 81249, Germany | |
| Sylvia Schädlich, Prof., Dr.-Ing. | Ruhr West University of Applied Sciences, Institute of Energy Systems and Energy Management Bottrop, 46236, Germany |
Abstrakt
The performance data of refrigerant compressors are specified according to standard DIN-EN-12900 or AHRI-540 and are published at nominal test conditions as a function of the evaporation and condensation temperature for a constant compressor frequency with a third-degree polynomial function of 10 coefficients. A variation of the compressor frequency is not provided in the standards, which is why the performance data of variable speed compressors cannot be announced with the standards up to now. The subject of the present work is therefore the further development of a previously published mathematical single function, which enables performance data to be reproduced with high accuracy over the entire compressor map. The new function is validated against power consumption, cooling capacity, mass flow and current from a compressor manufacturer and against experimental data with maximum deviations of +0.92/-2.45 % and will be investigated for other compressor types and manufacturers in future work.
Kľúčové slová
R290, Variable Speed Compressor, Standards, Rating, High Accuracy.