GENETIC OPTIMIZATION OF PLATE-FIN COOLING COILS FOR CARBON DIOXIDE
To study the optimum configuration of a cooling coil working carbon dioxide as the refrigerant,calculations were carried out a specified finned plate and tube coil as an example. The frontal area,the tube/fin pitching, and the number parallel circuits were varied, only the capacity of the coil and the inlet air temperature were held constant. A simple model of the coil was set up for evaluation the refrigerant-side and air-side heat transfer resistances using recognized correlations. Important distinctive criteria to be optimized are a life cycle cost (LCA) parameter including energy and metal expenditures and metal expenditure as a separate objective. Because of the great number of dimensioning parameters, a multivariable optimization is required. For the purpose, a genetic algorithm was applied. The results show that it was not possible to find any single parameter which is relevant for the optimum configuration of the geometric dimensions. Several combinations give results near to the optimum.
E.A.Aittom(a)ki T.Aho
Tampere University of Technology, P.O. Box 589 33101 Tampere, Finland
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）