Application of modelling approaches of twin-screw compressors: thermodynamic investigation and reduced-order model identification
نویسندگان
چکیده
Refrigeration is an essential part of the food chain. It used in all stages chain, from industrial processing to final consumption at home. In these processes, mechanical refrigeration technologies are employed, where compressors increase gas pressure evaporation condensation. systems, twin-screw represent most widely technology. A detailed mathematical model a compressor has been developed Simulink® using differential equations for energy and mass balances simulate compression cycle that includes suction, discharge phases. Gas enthalpy can be calculated as time functions during cycle. However, computational times obtained limit possibility extend use development control strategies whole plant its real operating conditions. Therefore, train simplified Matlab®: simulated flow rate, shaft power fluid temperature have employed identify several geometrical thermodynamic parameters model. The latter relies on non-linear algebraic and, thus, requires very short time. limited performance dataset model, different test it: results models compared, small errors observed.
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2021
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202131205001