Sharif Digital Repository

A hybrid analytical-numerical model for predicting the performance of the Horizontal Ground Heat Exchangers

Author

Bahmani, M.H.

Publisher

Elsevier Ltd,

Pub. Year

2022

Subjects

Duhamel theorem. / Earth Air Heat Exchanger. / Ground Heat Exchanger. / Horizontal Ground Heat Exchanger. / Analytical models. / Benchmarking. / Computation theory. / Computational fluid dynamics. / Geothermal energy. / Heat exchangers. / Numerical models. / Analytical approach. / Analytical/numerical modeling. / Computational costs. / Computational fluid dynamics methods. / Duhamel's theorem. / Earth-air heat exchangers. / Ground heat exchangers. / Horizontal ground heat exchangers. / Hybrid analytical-numerical. / Performance. / Forecasting. / Accuracy assessment. / Exploration. / Heat transfer. / Numerical model. / Performance assessment. / Prediction.

Modeling convective heat propagation in a fractured domain with x-fem and least square method

Author

Bahmani, B.

Publisher

American Society of Mechanical Engineers (ASME),

Pub. Year

2017

Subjects

Crack propagation. / Finite element method. / Fracture. / Heat convection. / Heat transfer. / Conduction process. / Convection process. / Different treatments. / Extended finite element method. / Heat front propagation. / Least square methods. / Numerical approaches. / Parabolic partial differential equations. / Least squares approximations.

Techno-Economic Feasibility Study of Earth Air Heat Exchangers for Gas Turbine Inlet Air Cooling

Author

Bahmani, M. H.

Pub. Year

2024

Subjects

Air intakes. / Air preheaters. / Taguchi methods. / Cost of energies. / Earth-air heat exchangers. / Earth-to-air heat exchanger. / Energy crisis. / Feasibility studies. / Gas turbine inlet air cooling. / Levelized costs. / Pressung. / Techno-economic feasibility. / The net present value (NPV) / Gas turbines.

A new method for estimating Score Function Difference (SFD) and its application to Blind Source Separation

Author

Bahmani, B.

Pub. Year

2005

Subjects

Data sample. / Estimation methods. / Instantaneous mixtures. / Mutual informations. / Practical problems. / Score function differences. / Algorithms. / Blind source separation. / Signal processing. / Estimation.

Off-line Arabic/Farsi handwritten word recognition using RBF neural network and genetic algorithm

Author

Bahmani, Z.

Pub. Year

2010

Subjects

Farsi handwritten recognition. / Genetic algorithm. / RBF neural network and wavelet transform. / Feature vectors. / Handwriting recognition. / Handwritten recognition. / Handwritten word recognition. / In-field. / k-Means algorithm. / K-Means clustering algorithm. / RBF Network. / RBF Neural Network. / Warping function. / Wavelet coefficients. / Word images. / Word segmentation. / Character recognition. / Computational linguistics. / Genetic algorithms. / Intelligent computing. / Intelligent systems. / Neural networks. / Radial basis function networks. / Wavelet transforms. / Clustering algorithms.

Optimizing the operation of current differential protection by power differential relay for three phase transformer

Author

Bahmani, B.

Pub. Year

2006

Subjects

Active power relays. / EMTP. / Magnetizing Inrush. / Protection. / TACS. / Transformer. / Electric relays. / Harmonic analysis. / Power transformers. / Transformer protection.

Synthesis of NiAl-TiC composites from elemental powders by volume combustion method

Author

Saadati, A.

Publisher

Taylor and Francis Ltd,

Pub. Year

2019

Subjects

Composite. / NiAl-TiC. / Volume combustion. / Binary alloys. / Combustion. / Composite materials. / Energy dispersive spectroscopy. / Nickel compounds. / Powders. / Scanning electron microscopy. / X ray diffraction. / Combustion method. / Elemental powders. / Energy dispersive X ray spectroscopy. / High temperature performance. / Nickel aluminides. / Porous nature. / Vickers microhardness. / Titanium carbide.

Solidification of A356 Al alloy: Experimental study and modeling

Author

Shabani, M. O.

Pub. Year

2011

Subjects

A356. / Microstructure. / Modeling.

A mathematical model for prediction of microporosity in aluminum alloy A356

Author

Bahmani, A.

Pub. Year

2013

Subjects

Gas segregation. / Modeling. / A-356 aluminum alloy. / Aluminum alloy a356. / Cast part. / Conservation equations. / Cooling rates. / Darcy's equations. / Dendrite arm spacing. / Experimental datum. / Gas content. / Mushy zone. / Simulation. / Computer simulation. / Forecasting. / Mathematical models. / Models. / Microporosity.

Effects of hydrogen level and cooling rate on ultimate tensile strength of Al A319 alloy

Author

Bahmani, A.

Pub. Year

2014

Subjects

Chilling effect. / Degassing. / Directional solidification. / Cooling rates. / Hydrogen level. / Ultimate tensile strength. / Alloy. / Cooling. / Hydrogen. / Microstructure. / Porosity. / Solidification. / Tensile strength.

Fabrication of novel chitosan-g-PNVCL/ZIF-8 composite nanofibers for adsorption of Cr(VI), As(V) and phenol in a single and ternary systems

Author

Bahmani, E.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Chitosan-g-PNVCL. / Ternary system. / Adsorption. / Chemicals removal (water treatment) / Chitosan. / Crystalline materials. / Heavy metals. / Metal ions. / Metal nanoparticles. / Nanofibers. / Organic pollutants. / Organometallics. / Phenols. / Reusability. / Ternary systems. / Water pollution. / Adsorption capacities. / Central composite designs. / Composite nanofibers. / Electrospinning method. / Initial concentration. / Metal organic framework. / Sorption-desorption cycles. / ZIF-8 MOF. / Chromium compounds.