A proposed model to predict thermal conductivity ratio of Al2O3/EG nanofluid by applying least squares support vector machine (LSSVM) and genetic algorithm as a connectionist approach

被引：122
作者：
Ahmadi, Mohammad Hossein [1 ]
Ahmadi, Mohammad Ali [2 ]
Nazari, Mohammad Alhuyi [3 ]
Mahian, Omid [4 ]
Ghasempour, Roghayeh [3 ]
机构：
[1] Shahrood Univ Technol, Fac Mech Engn, Shahrood, Iran
[2] PUT, Ahwaz Fac Petr Engn, Dept Petr Engn, Ahvaz, Iran
[3] Univ Tehran, Renewable Energy & Environm Engn Dept, Tehran, Iran
[4] King Mongkuts Univ Technol Thonburi, Dept Mech Engn, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, FUTURE Lab, Bangkok 10140, Thailand
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2019年 / 135卷 / 01期
关键词：
Nanofluid; Ethylene glycol; Thermal conductivity ratio; Least squares support vector machine; ARTIFICIAL NEURAL-NETWORK; CRITICAL HEAT-FLUX; PARTICLE-SIZE; NATURAL-CONVECTION; AQUEOUS NANOFLUID; HYBRID NANOFLUID; VISCOSITY; WATER; ENHANCEMENT; FLOW;
D O I：
10.1007/s10973-018-7035-z
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this study, a model is proposed by applying the least squares support vector machine (LSSVM). In addition, genetic algorithm is used for selection and optimization of hyperparameters that are embedded in the LSSVM model. In addition to temperature and concentration of nanoparticles, the parameters which are used in most of the modeling procedures for thermal conductivity, the effect of particle size is considered. By considering the size of nanoparticles as one of the input variables, a more comprehensive model is obtained which is applicable for wider ranges of influential factor on the thermal conductivity of the nanofluid. The coefficient of determination (R-2) for the introduced model is equal to 0.9902, and the mean squared error is 8.64 x 10(-4) for the thermal conductivity ratio of Al2O3/EG.
引用
收藏
页码：271 / 281
页数：11
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