Improved IAQ could significantly improve the performance of workers
May 23, 2016
People who work in well-ventilated offices with below-average levels of indoor pollutants and carbon dioxide (CO2) have significantly higher cognitive functioning scores — in crucial areas such as responding to a crisis or developing strategy — than those who work in offices with typical levels, according to a new study.
Barksdale Air Force Base is no stranger to hot weather, which can be a constant battle for maintainers and others who work out in the elements. Thankfully, 2nd Civil Engineer Squadron HVAC Airmen ensure there’s a cool place to escape to while also providing other benefits of heating and cooling that directly affect the mission.
Parallel compressor refrigeration racks have been the primary source of refrigeration for the grocery store industry over the years. In this article I am going to go over the benefits a parallel rack system can offer the commercial and industrial refrigeration markets.
Hospitals today are increasingly being challenged by rising patient infection rates, especially from superbugs such as Methicillin-resistant Staphylococcus aureus (MRSA). And the challenges are only going to increase as new Medicare rules go into effect in 2017 that will include MRSA in all reimbursement calculations.
It is my firm belief that airflow and air distribution is every bit as important in refrigeration design as load calculations. What good is a properly sized system that can’t deliver the air to areas that need it? Poor air distribution and airflow lead to stratification in temperature and humidity as well as poor heat transfer.
Finding R-22 and R-410A alternatives for high-ambient-temperature environments
March 7, 2016
The Oak Ridge National Laboratory (ORNL) High-Ambient-Temperature Evaluation Program for low-global warming potential (GWP) refrigerants aims to develop an understanding of the performance of low-GWP alternative refrigerants to HCFC and HFC refrigerants in mini-split air conditioners under high-ambient-temperature conditions.
With another AHR Expo in the books, it’s clear that even though the industry is gradually progressing, overall it’s ripe for innovation. Four areas in particular stand out where forward-thinking manufacturers can have a powerful impact.
What causes poor IAQ? What are the negative effects? And most importantly, what can be done to achieve cleaner indoor air? This article will attempt to shed light on these questions so we can all breathe a little easier.
Contractors, architects, engineers, and others who specify commercial and industrial boilers continually seek systems that are more cost effective, energy efficient, and environmentally friendly. The boiler industry has responded by making significant advances in both construction and design.