Sam Affleck

MPhil (Cantab) | BEng | AMIChemE

Working on

Battery materials
Adsorption simulator adsim

Essay Contributions

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Essays

2025-08-16

Velocity profile in a packed bed

Shape and implications

2025-08-15

Makeup gas for thermal swing systems

Calculation of makeup gas

2025-08-14

Thermal gradients in particles

The Biot number

2025-08-13

Dead volume in breakthrough experiments

How to account for dead volume

2025-08-12

Thermocline in packed bed thermal energy storage systems

Definition and practical implications

2025-08-11

The influence of dispersion on breakthrough curves

Mechanisms and methods for parameter estimation

2025-08-10

Modes of heat transfer in packed beds

A breakdown of each mechanism

2025-08-09

Thermal ratcheting in packed bed thermal energy storage (TES) systems

Thermo-mechanical issues

2025-08-08

Effective axial thermal conductivity in packed beds

A mechanistic understanding

2025-08-07

Local thermal equilibrium (LTE) model

How to model heat transfer in packed beds

2025-08-06

Cell interpolation (Finite Volume Method)

Debugging my adsorption simulator

2025-08-05

Assumptions register

Validating assumptions in R&D

2025-08-04

Iterations over time will always win

Itterate, itterate, itterate...

2025-08-03

Mass balance conservation checks

Validating a 1D adsorption solver

2025-08-02

Volumetric vs molar flow rate of gases

Understanding the difference

2025-08-01

The logic of ideas

What is a 'good idea'?

2025-07-31

Superficial vs interstitial velocity

Gas velocity in packed beds

2025-07-30

Validation of simulation results

What makes a good model?

2025-07-29

Mass and heat transfer fronts

Movement of fronts in adsorption systems

2025-07-28

Fitting mass transfer coefficients

Why you shouldn't fit a single mass transfer coefficient

2025-07-27

Extracting data from datasheets and papers

PlotDigitiser for data extraction

2025-07-26

Solving big problems

Break it down

2025-07-25

Absolute vs Gauge Pressure

Make it clear

2025-07-24

Joule-Thomson Effect

Does the temperature of an expanding gas increase or decrease?

2025-07-23

Fluidisation considerations in packed beds

Theory and practical implications

2025-07-22

Dispersion in packed beds

Understanding the physical meaning of the axial dispersion coefficient

2025-07-21

Adsorption model standardisation

Lessons to learn from the battery modelling community

2025-07-20

Adsorption for gas separation

A very short introduction

2025-07-19

Dispersion vs Diffusion – Taylor Dispersion

An intuitive understanding

2025-07-18

Cycle to work

If you don't have the willpower to do your cardio, cycle to work

2025-07-17

Learn keyboard shortcuts

It is not just Ctrl + C and Ctrl + V