Photo Courtesy of ASHRAE An Oberlin College building, designed for net-zero energy use, has not performed as well as hoped. Green does not necessarily mean energy-efficient. "A lot of people think it does," said consulting engineer Lawrence G. Spielvogel at the ASHRAE winter conference last month. The veteran mechanical engineer then charged that the long-used energy standard for commercial building systems, ASHRAE 90.1, "provides and requires a variety of means to waste energy efficiently, which is why so many 'green' buildings have high energy use."Among many things, Spielvogel—a known gadfly—blames code-required control systems for waste. "Good mechanical engineers do not
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.