Membrane protein crystallization in surfo: influence of new surfactant structures on MP phase diagrams.

International audienc

Direct carbon fuel cell simulation using hybrid lb-fv approach: effect of carbon fuel specific surface area

In the present study, the simulation of the direct carbon fuel cell (DCFC) using a hybrid Lattice Boltzmann and finite volume approach is performed. The numerical model was first validated against available experimental data. Parametric studies were carried out to investigate the effect of the microstructure of the carbon fuel on the DCFC performance. The increase of the specific surface area (SSA) or porosity was found to minimize the voltage drop in the cell and ameliorate its output power densit

FD-LBM Simulation of thermosolutal convection generated in an inclined enclosure in the presence of Soret and Dufour effects

International Conference on Materials and Energy (ICOME), La Rochelle, FRANCE, MAY 17-20, 2016International audienceAn hybrid Lattice-Boltzman finite-difference method is proposed to assess the impact of the inclination angle of the cavity on thermosolutal natural convection of a binary fluid confined in a square cavity differentially heated and salted from two opposite walls with constant temperatures and concentrations. This method seems more flexible in implementing additional effects and apparently more efficient than the classical CFD methods. The study is conducted in the case of aiding buoyancy forces and many other controlling parameters. Results obtained showed important qualitative and quantitative effects of the governing parameters on fluid flow and heat and mass transfer characteristics. The heatlines and masslines concepts are also implemented to obtain additional details on heat and mass transfer processes. (C) 2017 The Authors. Published by Elsevier Ltd

15th International Conference on the Crystallization of Biological Macromolecules.

International audienc

Membrane protein crystallization in surfo: influence of new surfactant structures on MP phase diagrams.

International audienc

15th International Conference on the Crystallization of Biological Macromolecules.

International audienc

Hybrid lattice Boltzmann finite difference simulation of Soret convection flows in a square cavity with internal heat generation

International audienceThermosolutal natural convection heat and mass transfer in a 2D square cavity are studied numerically in the presence of Soret effect and uniform volumetric heat generation. A hybrid scheme with simple relaxation time lattice Boltzmann method (SRT-LBM) is used to obtain the velocity field while the temperature and concentration fields are deduced from energy and species balances using a finite difference method (FDM). The study focuses on the effect of three parameters, which are the Soret parameter (Sr = -0.5, 0, and 0.5), the buoyancy ratio (N = -1 and 1), and the internal to external Rayleigh numbers ratio (0 <= R <= 80). Combined effects of these parameters on fluid flow and heat and mass transfer characteristics are examined for Lewis number Le = 2, Prandtl number Pr = 0.71, and external Rayleigh number Ra-E = 10(5). The interaction between the heat generation and the thermodiffusion may play an important role in purifying/charging the confined fluid from/with species by considering positive/negative values of Sr

MRT-LBM SIMULATION OF NATURAL CONVECTION IN A RAYLEIGH-BENARD CAVITY WITH LINEARLY VARYING TEMPERATURES ON THE SIDES: APPLICATION TO A MICROPOLAR FLUID

International audienc

Pemanfaatan Briket Arang Tempurung Kelapa sebagai Bahan Bakar Alternatif di Desa Banjar Wangi, Pandeglang, Provinsi Banten

Indonesia merupakan salah satu negara tropis yang memiliki tanaman kelapa yang berlimpah. Tanaman kelapa memiliki banyak manfaat mulai dari akar, pohon hingga buahnya. Saat ini, pohon kelapa sudah banyak dimanfaatkan namun belum optimal, khususnya limbah padat kelapa. Limbah padat kelapa dapat diubah menjadi briket yang dapat dimanfaatkan lebih lanjut sebagai bahan bakar alternatif yang ramah lingkungan. Briket adalah sebuah blok bahan yang dapat menjadi bahan bakar untuk memulai dan mempertahankan api. Desa Banjar Wangi, Kecamatan Polosari, Kabupaten Pandeglang, Provinsi Banten merupakan salah satu desa yang sebagian besar masyarakatnya memasak dengan kayu bakar. Kayu bakar merupakan bahan bakar yang murah dan mudah didapatkan dibandingkan gas elpiji. Selain itu, Desa Banjar Wangi dikenal sebagai salah satu daerah penghasil tempurung kelapa, namun tidak dimanfaatkan dengan optimal. Oleh karena itu, diperlukan peningkatan pemahaman dan kesadaran dalam pengolahan tempurung kelapa menjadi briket melalui pelatihan kepada masyarakat agar meningkatkan nilai tambah dari limbah dan menambah penghasilan masyarakat. Pelatihan diikuti dengan 30 peserta yang melibatkan mahasiswa. Pelatihan ini meliputi tahap pembersihan tempurung kelapa, pembakaran, penggilingan, pencetakan dan pengeringan sehingga didapatkan briket arang tempurung kelapa