Concept

Exergie

Publications associées (148)

Exergy assessment of single and dual pressure industrial ammonia synthesis units

In exothermic, equilibrium-limited processes such as ammonia synthesis, higher per-pass conversions are often achieved by withdrawing the enthalpy of reaction before the conversion has been completed. However, although inter-bed cooling may help controllin ...

2017

Single Organic Droplet Collision Voltammogram via Electron Transfer Coupled Ion Transfer

Pekka Eero Peljo, Haiqiang Deng, Cheng Liu

Single-emulsion toluene oil droplets (femtoliter) containing a hydrophobic redox probe that are dispersed in water stochastically collide with an ultramicroelectrode (UME). The fast-scan cyclic voltammetry (FSCV) or Fourier-transformed sinusoidal voltammet ...

American Chemical Society2017

Modeling and optimization of an industrial ammonia synthesis unit: An exergy approach

An exergy modeling and optimization of an industrial ammonia unit based on steam methane reforming (SMR) process is presented. The base-case unit produces about 1000 t NH3/day [1], as well as power and steam, with no auxiliary exergy use. Some critical ope ...

2017

Discovery and evaluation of novel pathways for production of methyl ethyl ketone

Vassily Hatzimanikatis, Ljubisa Miskovic, Meriç Ataman, Noushin Hadadi, Milenko Tokic

The limited supply of fossil fuels and environmental reasons shifted research in industry and academia towards finding their replacements. An important part of these efforts is focused on a sustainable production of the 2nd generation of biofuels. Among ma ...

2017

Optimization of the production of methyl ethyl ketone in recombinant Pseudomonas putida using large-scale kinetic models

Vassily Hatzimanikatis, Ljubisa Miskovic, Meriç Ataman, Milenko Tokic

The production of second generation of biofuels by conversion of inexpensive feedstocks is a basis for future bio-sustainable economy. Among many proposed molecules, methyl ethyl ketone (MEK) emerged as one of the most prominent fuel candidates due to its ...

2017

Thermodynamics-based Metabolite Sensitivity Analysis in metabolic networks

Vassily Hatzimanikatis

The increasing availability of large metabolomics datasets enhances the need for computational methodologies that can organize the data in a way that can lead to the inference of meaningful relationships. Knowledge of the metabolic state of a cell and how ...

Elsevier2017

Thermo-economic optimization of an ORC driven heat pump based on small scale turbomachinery and comparison with absorption heat pumps

Jürg Alexander Schiffmann, Luis Carlos Mendoza Toledo, Violette Mounier

The current paper presents the thermo-economic optimization and comparison, through a multi-objective algorithm, between HP-ORC and the competing single effect absorption heat pump (SEAHP), with the aim to find the best trade-off between investment cost an ...

Elsevier2017

High-flux optical systems for solar thermochemistry

Sophia Haussener, Gaël Jean Clément Levêque

High-flux optical systems (HFOSs) are optical concentrators used to increase the radiative flux of the natural terrestrial solar irradiation. High radiative flux concentration leads to high energy density in solar receivers which allow to obtain high tempe ...

2017

Determining The Potential Of Salinity Gradient Energy Source Using An Exergy Analysis

Arash Emdadi

Mixing of fresh (river) water and salty water (seawater or saline brine) in a control fashion would produces an electrical energy known as salinity gradient energy (SGE). Two main conversion technologies of SGE are membrane-based processes; pressure retard ...

Amer Soc Mechanical Engineers2016

Exergy Assessment of Single and Dual Pressure Industrial Ammonia Synthesis Units

Daniel Alexander Florez Orrego

Silesian University of Technology2016

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