Cooling tower fill

Everything interesting happens on the inside.

Cooling tower fill hasn’t changed in decades. Our evaporative media goes into the tower you already have and moves the same air and water for less fan work.

A high-angle drone view along a row of cooling tower fans venting vapor, in a cool blue grade.

Video: iStock.com/dongfang zhao

Evaporative media

Cooling towers and evaporative air coolers both cool with a wet material called evaporative media.

Air moves through the wet media, and a little of the water evaporates. That carries the heat away. In a cooling tower the media is called fill. In an air cooler it is called a pad. We developed a new manufacturing platform that makes both.

Air coolers

Our pads are built from fill DNA: the same material as our fill. So they last longer than standard pads, and they work well at low water flow.

Ask us about pads
Cooling towers

A cooling tower cools water by letting a little of it evaporate.

A cooling tower cools water for a building or a plant. Warm water pours down through the tower while big fans move air through it. A little of the water evaporates, and that carries the heat away. On the way down, the water runs over the fill, which spreads it out so the air can touch as much of it as possible.

The problem

The fill is what the fans work against, every hour the tower runs.

The harder it is for air to get through the fill, the more work the fans do. Over the life of a tower, that adds up to a lot of electricity.

Does it fit

You keep the tower. We change what is inside it.

It is a drop-in replacement for the fill. It handles the same air and water, and the fans do less work to move the air through it. Whether it suits your tower is the first thing we will talk through.

How we do it

We develop the material, design the shape and test it.

Geometry is the shape of the media. Ours is a lattice: an open, repeating 3D pattern that the water runs over and the air moves through.

Tall 3D-printed lattice columns stand side by side while water sprays into the gaps between them and runs down their faces. The colors are a brand treatment: a magenta to orange gradient, with the brightest water picked out in green and white.

A test block on our bench. The colors are a brand treatment.

01

The material

We develop and test the materials the media is made of. We print samples, wet them, load them and repeat that many times, until we know where they fail.

02

The shape

We design the lattice for the job. It holds a thin film of water, lets air through and carries its own weight.

03

From test bench to your site

We test full-size parts on our own test bench. Then we run a pilot at your site. We install it and stay with it while it runs.

Founded by chemical engineers Matthew Pearlson (MIT) and David Walker (PhD Northwestern, co-founder of Azul 3D). About us

Next step

Get in touch for a technical discussion.

Tell us about your cooling tower or air cooler: where it is, what kind it is, and what fill or pads are in it now, if you know. We read every message and will get back to you.

Estimator

What do your fans cost to run?

Pick a cooling tower or an air cooler, its size and your city, and see a rough yearly fan cost.

Try the estimator