Multi-Response optimization applied to a mechanically assisted reed valve of a hermetic reciprocating compressor
| Autor: | Lukas Albrecht Dür, Johann Wilfried Hopfgartner, Raimund Almbauer, Andreas Egger, Michael Lang |
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| Rok vydání: | 2020 |
| Předmět: |
Suction
Reciprocating compressor Computer science Mechanical Engineering 0211 other engineering and technologies Refrigeration Mechanical engineering Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology Building and Construction 01 natural sciences Calorimeter Reed valve 010104 statistics & probability Reliability (semiconductor) Range (aeronautics) 021108 energy Hardware_ARITHMETICANDLOGICSTRUCTURES 0101 mathematics Gas compressor |
| Zdroj: | International Journal of Refrigeration. 119:119-130 |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2020.07.008 |
| Popis: | Reed valves are widely used in hermetic reciprocating compressors for domestic refrigeration. They are crucial components in terms of efficiency, cooling performance and reliability of the compressor. While reed valves already cause a significant proportion of the thermodynamic losses in fixed speed compressors, they cause even more challenges in variable speed compressors. Especially in variable speed compressors, a further improvement of the reed valve dynamics requires the consideration of a new valve concept. In this work, a new and cost-effective concept of a mechanically assisted suction reed valve is introduced. Simulation based response modelling and a multi-response optimization approach are applied to systematically optimize the design. Simulations between 1500 rpm and 5000 rpm indicate the strengths and weaknesses of individual optimized design variants over a wide compressor speed range. Calorimeter and valve dynamics measurements show considerable improvements of the COP and the valve impact velocity. |
| Databáze: | OpenAIRE |
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