News

Energy harvesting – creating electrical energy from cars driving over a road, or people walking on a bridge – has long been theorized as a potential source of sustainable electricity. But due to the physical properties of those vibrations, implementing the process has been largely infeasible. Now, Andres Arrieta has proposed using metamaterials as physical frequency converters, potentially bringing us a step closer to harvesting the energy of those vibrations.

Thanos Tzempelikos, Professor in the Lyles School of Civil Engineering and Ray W. Herrick Labs, has been awarded the prestigious Leon Gaster Award from the Society of Light and Lighting as a co-author of the paper, "Cross-validation and robustness of daylight glare metrics", published in the esteemed journal Lighting Research and Technology in November 2019.

Congratulations to Sansit Patnaik, who won a design competition in Germany by optimizing the battery housing for an electric car. Sansit, a graduate research assistant at Herrick Labs, collaborated remotely with friends at RWTH Aachen University in Germany.

Habitats on the moon will need to be resilient against meteorites, radiation, and seismic activity. The Wall Street Journal recently visited Herrick Labs and talked to Prof. Shirley Dyke about her new lunar habitat testbed.

New autonomous sensor technology may help businesses monitor refrigeration and heating systems in real time much faster and easier than current options. Researchers at Herrick Labs developed the sensor to monitor the oil circulation ratio in real time for heating, ventilation, air conditioning and refrigeration systems.

This brick circle on Purdue's campus is called the "clapping circle"... when you stand in the middle of it and clap, you hear an odd squeak. Thanks to the research of professor Stuart Bolton and his acoustics students, now we know why.

What if paint could cool off a building enough to not need air conditioning? Xiulin Ruan has pioneered radiative cooling paint; instead of absorbing sunlight, it radiates the heat back into space. This actually cools surfaces below ambient temperature, something paint has never done before.

The School of Mechanical Engineering is sad to announce that Raymond Cohen, professor and former director of Herrick Labs, has passed away.

Today, Herrick Labs is the foremost academic HVAC lab in the world. But when it opened in 1958, its focus was on how livestock reacted to refrigeration! Don Giffels (MSME 1959) was one of the first graduate students at Herrick, and shares his reflections.

Purdue and the US Army are collaborating on a three-year project to modernize their use of propellants, explosives, and pyrotechnics. Principal investigator Jeff Rhoads is part of the Purdue Energetics Research Center, a leader in the academic study of energetic materials.