Thermodynamics

Simulation of Biogas Production Using Rigorous Fermentation Model in Aspen Plus

Site Administrator — Tue, 26 Mar 2024 14:37:00 +0000

Conference Presentation

AIChE Spring Meeting and Global Congress on Process Safety

March 26, 2024

This presentation is to demonstrate how to simulate manure to biogas conversion in an anaerobic batch fermentation tank, using biocomponents and the...

The Thermodynamics of Good Cities

Sonja Bradfield — Wed, 13 Dec 2023 15:22:05 +0000

December 13, 2023

Taking steps to reduce the urban heat island (UHI) effect makes sense for both sustainability and quality of life. Learn more about the effect and what steps can be taken.

Auto-Refrigeration during Pressuring / Re-Inventorying Nitrogen Filled Lines with Flashing Supercritical Ethylene: The Misconception of the Role of Partial Pressure

Site Administrator — Wed, 15 Mar 2023 14:05:00 +0000

Conference Presentation

AIChE Spring Meeting and Global Congress on Process Safety

March 15, 2023

In the process of pressurizing a nitrogen (N2)-filled pipeline with a higher-pressure supercritical ethylene (C2) for commissioning or re-...

Theoretical Comparison of Energy Required to Produce Hydrogen By Different Technologies

Site Administrator — Tue, 14 Mar 2023 18:20:00 +0000

Conference Presentation

AIChE Spring Meeting and Global Congress on Process Safety

March 14, 2023

Hydrogen is part of energy transition. There are many different technologies to produce hydrogen. Which technology is the best? The answer depends on...

Predicting Solubility Limits of Organic Solutes for a Wide Range of Solvents and Temperatures Using Machine Learning and Thermodynamics

Site Administrator — Tue, 15 Nov 2022 18:12:00 +0000

Conference Presentation

AIChE Annual Meeting

November 15, 2022

The solubility of organic molecules is crucial in organic synthesis and industrial chemistry, it is important in the design of many phase separation...

Thermodynamics of Environment-Dependent Chemisorption on Metal Surfaces Versus Metal Oxo Cations

Site Administrator — Mon, 14 Nov 2022 21:43:00 +0000

Conference Presentation

AIChE Annual Meeting

November 14, 2022

Reaction conditions (i.e., temperature, concentration) have significant impact on catalyst composition and structure. For metal catalysts,...

Video Tutorial: Partial Molar Enthalpy (Interactive Simulation)

cms_marcp — Fri, 01 Jul 2022 15:42:36 +0000

July 6, 2022

Having trouble plotting partial molar values for non-ideal, binary mixtures? Check out this video for a tutorial that shows how an interactive simulation can be used to plot the values.

Video Tutorial: Injecting a Liquid into an Evacuated Tank

cms_marcp — Thu, 30 Jun 2022 17:33:57 +0000

July 6, 2022

This chemical engineering video tutorial describes how to use an interactive simulation that shows what occurs when a liquid is injected into an evacuated, isothermal tank.

AIChE Journal Highlight: New Research Directions Appear in the Fourth Futures Issue

Karen Simpson — Mon, 06 Dec 2021 19:21:01 +0000

The December issue of the AIChE Journal is the fourth annual Futures issue. The contributions span the diverse spectrum of chemical engineering research with eight of the nine thematic areas of the journal represented.

December

2021

Experimental Methods for Transport Properties: A Review

Site Administrator — Thu, 18 Nov 2021 13:50:00 +0000

Conference Presentation

AIChE Annual Meeting

November 18, 2021

This paper will be a review of the state-of-the-art in the measurement of the transport properties of fluids.

Empirical Multiparameter Equations of State – an Accurate Source of Thermodynamic-Property Data for Pure Fluids and Mixtures

Site Administrator — Wed, 17 Nov 2021 23:00:00 +0000

Conference Presentation

AIChE Annual Meeting

November 17, 2021

For well measured, technically and scientifically relevant fluids and fluid mixtures empirical multiparameter formulations in form of fundamental...

Development of a Coarse-Grained Polyoxyethelyne Glycol Non-Ionic Surfactant Model Using the SAFT-? Mie Force-Field for Molecular-Dynamics Simulations

Site Administrator — Wed, 17 Nov 2021 22:45:00 +0000

Conference Presentation

AIChE Annual Meeting

November 17, 2021

Robust coarse-grained (CG) models which exhibit both quantitative accuracy and representability are needed if one expects to obtain valuable insights...

Solvent Effects on Elementary Reactions in Solid-Acid Catalyzed Reactions: Acid-Base Interactions in Zeolites

Site Administrator — Wed, 17 Nov 2021 21:24:00 +0000

Conference Presentation

AIChE Annual Meeting

November 17, 2021

Biomass-derived molecules are characterized by high oxygen content and boiling points necessitating their conversion to value-added products by...

A Unified Presentation of Phase Stability Analysis: Specifications, State Functions, Variables, Stability Criteria and Solution Methods

Site Administrator — Wed, 17 Nov 2021 18:15:00 +0000

Conference Presentation

AIChE Annual Meeting

November 17, 2021

Phase stability testing is a key type of thermodynamic calculation. Phase stability assesses the state of a mixture at given conditions, it is...

Evaluations of Thermodynamics Models in Comparison to Standard Databases for Phase Equilibria

Site Administrator — Wed, 17 Nov 2021 18:00:00 +0000

Conference Presentation

AIChE Annual Meeting

November 17, 2021

Quite often, new thermodynamic models are proposed with limited comparisons to existing models. This makes it difficult to fully comprehend the...