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Blog Posts Tagged Chemical Reaction Engineering Module

Ammonia Synthesis, a Complex and Nonlinear Process

May 8, 2014

In the final installment of our Chemical Kinetics blog series, we discuss the complex and nonlinear process of synthesizing ammonia. Get an overview of the equations and modeling considerations.

Chemical Parameter Estimation Using COMSOL Multiphysics

April 10, 2014

In this installment of our blog series on chemical kinetics, we discuss how to estimate the chemical parameters of your model in COMSOL Multiphysics®.

Enzyme Kinetics, Michaelis-Menten Mechanism

March 13, 2014

For the 100-year anniversary of the Michaelis–Menten mechanism, we honor the trailblazing publication the best way we know how — with simulation.

Buoyancy-Driven μPCR for DNA Amplification

February 26, 2014

True crime + simulation: The more DNA in a sample, the easier it is to accurately test and identify biomolecules, cells, and even an entire person during forensic investigations.

A General Introduction to Chemical Kinetics, Arrhenius Law

February 13, 2014

Countless complications and pitfalls make chemical simulations challenging. Here, we give an introduction to chemical kinetics and Arrhenius law to help >>

Using a Microfluidic Valve to Separate Charged Particles

July 31, 2013

When you think of a valve, what is the first thing that comes to mind? Electromagnetic waves, or perhaps, Stokes flow separating charged chemicals in a microchannel system? Maybe neither. The truth is, when researchers try to separate small (in the picoliters region), well-defined sample volumes of chemicals, the dispensing accuracy provided by a mechanical regulator probably won’t suffice. An electrokinetic valve, a type of microfluidic valve, on the other hand, provides the perfect solution by giving researchers the flow […]

Modeling Chemical Reactions: Thermal Stress Analysis

March 15, 2013

The beauty of COMSOL is that it provides a unified modeling platform no matter what type of simulations you are performing. This is almost unique to the CAE market. Recently we showed you how to model chemical reactions using a monolith reactor as our example. First we walked you through solving the reaction kinetics and then involving plug flow, next we created a full-scale 3D model of the reactor. A chemical engineer may feel comfortable using a software optimized for […]

Optimal Distribution: Tree Roots and Microreactors

March 13, 2013

I love trees and my favorite is definitely the ficus, all varieties included. A few weeks ago I had the chance to admire a stately ficus microcarpa (see figure below). What struck me above all were its aerial roots. Roots are designed to absorb water and nutrients, sustaining the tree and synthesizing substances responsible for its growth. A thought crossed my mind right away: the shape of those roots and the way they coalesce have surely been optimized by Mother […]