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Shaping Tomorrow's Global Built Environment Today
September 4, 2025
Scientists from St. Petersburg Polytechnic University have developed innovative systems for cooling gas-turbine blades based on nature-inspired gyroid lattice structures. They were created using additive technology—layered laser alloyage of metal powders. In the course of their study, the researchers used the 3D printer to print out samples of channels with gyroid insertion elements and tested them in aerodynamic installation. Read more
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Gyroid structures resembling biological systems feature unique properties: big surface area, even distribution of thermal flow and ability to dampen vibrations. Image Credit: Global Energy Association
While students may have learned about solar panels in elementary, middle or high school, most schools likely didn’t have an array of their own. Or, if the roof had panels, they likely weren’t used as a learning opportunity. As solar deployment is on the rise nationwide, schools are increasingly installing solar not only for the energy savings and climate benefits, but also to function as a sort of “living laboratory” and an educational asset. Read more
Heat pumps could save households hundreds of pounds a year on heating bills, if the government took simple measures to reform the energy system, according to an analysis by a climate change think tank. The average household’s heating bills could be roughly halved, saving about $602 a year with a heat pump instead of a gas boiler, if steps were taken to make electricity cheaper. Read more
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Join ASHRAE Journal Assistant Editor Allison Hambrick and guest Gursaran Mathur, Ph.D., P.E., Fellow/Life Member ASHRAE, as they discuss the circulation and management of carbon dioxide (CO2) in automotive vehicles and how high levels of CO2 concentrations, which can impact the safety and health of vehicle occupants, can be controlled.
 
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ASHRAE Journal
By Mohamad Yehia Itani, Eng.; Hassan Chehade; and Adnan Akhdar
While various traditional and novel ventilation strategies exist, displacement ventilation has become more widespread in nonindustrial spaces, especially those with high ceilings where the natural rising motion of thermal plumes is promoted and where contaminant levels are low and system energy efficiency is a priority. This article presents a case study on the implementation of the displacement ventilation system in the Riad Salameh Auditorium, which was built in 2017 and that is part of the Middle East Airlines Training and Conference Center in Beirut, Lebanon. Download here
ASHRAE News
Registration Is Open for the 2026 ASHRAE Winter Conference
Register now for the 2026 ASHRAE Winter Conference and AHR Expo taking place Jan. 31-Feb 4 in Las Vegas. Immerse yourself in a world of HVAC&R with more than 100 technical sessions and more than 1,700 exhibitors at the AHR Expo. Your paid ASHRAE Conference badge provides entry to the AHR Expo. Early Bird Registration ends Oct. 31. Read more
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In Case You Missed It
New research has shown that the skin temperature on specific areas of the body is a strong indicator for how hot, cold or comfortable people feel. These findings could inform the design of wearable technology and smarter, more intuitive building climate control systems. The new study by experts from the University of Nottingham's Faculty of Engineering shows that skin temperature, particularly on the face and hands, is closely tied to how comfortable or uncomfortable a person feels. Read more
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