About

I am an award-winning teacher and researcher focused on energy and sustainability.

Affiliations

I am a full professor at Calvin University, teaching courses in the Energy, Environment, and Sustainability and Mechanical concentrations of the Engineering Department, School of STEM.

I am a Virtual Visiting Research Fellow at University of Leeds in the School of Earth and Environment, Faculty of Environment.

I am an Extraordinary Professor at Stellenbosch University in the School for Public Leadership, Faculty of Economic and Management Science.

Awards

I have won several awards for my work. See details here.

Research

My research question is

What are the relationships among energy, materials, and the economy when viewed through the lens of sustainability?

In the ongoing pursuit of an answer, I have many publications and presentations.

My current research interests are:

Previous research topics include:

At Global Aerospace Corporation
- Stratospheric balloons
- Lighter-than-air systems
- Control of multi-vehicle systems
- Lithium-ion Battery modeling
At JPL
- Planetary balloon systems
- Croycoolers
At the University of Illinois
- Refrigeration and air-conditioning
- Heat exchanger design

Mexer

I led the effort to create Mexer with students Kenny Howes and Edom Maru and colleague Randall Pruim. Mexer is the Materials and Energy eXERgy visualizer. See https://mexer.site.

CV

Here is my CV.

Colophon

This site is made with Quarto and hosted on Netlify. The light theme is cosmo. The dark theme is slate. Much inspiration for the design of this site comes from Silvia Canelón. Feel free to learn from the source code, but please be kind; don’t copy wholesale.

Body text is set in Charter, an excellent and modern alternative to Times New Roman. Title text is set in Inter, with tighter font tracking via

h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.2em;
}

to provide a polished look. I mostly follow Matthew Butterick’s excellent Typography in Ten Minutes.