World’s Largest Thermal Energy Storage Starts Up
The biggest impediment in using renewable energy (solar and wind) is that it is intermittent. That is, the wind doesn’t blow all the time and solar energy depends on the time of day and weather. Energy storage is a key way these renewable energy sources can be made more useful. A 14.9 million gallon tank in Germany will […]
Meet DTC’s Instructors at AHR Expo 2023
Come by the DTC AHR Expo Booth (BC1613) and meet our instructors, Dr. Tom (AKA Dr. Thomas H. Brown) and Dr. Steve Terry (DTC HVAC & Refrigeration Instructor). They’ll be there to explain what makes our Mechanical PE Exam Review courses so effective and to answer your questions. We’ll also be giving away FREE courses, […]
So Many Distractions – How to Stay Focused
In a recent ASME article caught my attention. It was titled “Mastering More Willpower” by Jean Thilmany. Her premise for the article was “By strengthening your willpower you’ll get more done and more satisfaction in work and life.” Collaborating with Roy Baumeisster, professor of psychology at Florida State University and the University of Queensland in […]
Páternoster: The Continuously Moving Elevator
Instead of carrying things up inclines or stairs, a variety of methods have been invented to move people and things vertically – an interesting example is the páternoster. The páternoster is a continuously running elevator that was first developed in the late 19th century, and there are still a number of surviving examples like this one […]
MECHANICAL PE EXAM TIP – Units, Units Units!!!
If I wasn’t Dr. Tom, I’d be Dr. Units. I cannot tell you how many times units are the reason someone gets the wrong answer to a problem. It might be as simple as inches needed to be converted to feet, or the other way around. Or, it is a combination of units like gallons per minute […]
Paper a Roof to Save Cooling Energy
Northeastern University researchers have developed a new “paper” that, when applied to roofs, can dramatically reduce cooling loads. The paper is made of hydroxyapatite materials spun into fibers and made into a paper. Its white color reflects the majority of the direct rays from the sun. In addition, heat from inside the structure is radiated […]
Sports Trend – The Venue over the Game?
Sports stadiums typically started off as purely static structures, falling mostly under civil engineering. They were interesting structures, but the game being played was clearly the center of attention. However, today we have stadiums that are anything but static. Moving roofs, moving fields, moving stands, a very visible world of mechanical engineers and civil engineers […]
DTC Is Going To Be at AHR Expo 2023
The DTC Team is heading to Atlanta in February, and we hope to see you there at our AHR Expo Booth (BC1613). We’ll be giving away free courses, and offering a 20% show discount on all our courses. So drop by, meet Dr. Tom, learn firsthand what makes our Mechanical PE Exam Review courses so […]
From Solar Waste to a Hot Opportunity
The proliferation of solar panels on roofs and in solar farms over the last 20 years is expected to create a new problem – what to do with the panels at the end of their lives? An estimated 8 million tons of waste per year is expected by 2030 and ten times that by 2050. […]
FEATURED TESTIMONIAL – “I was able to pass the HVAC PE Exam because of the DTC.”
“After a couple of failed attempts at the HVAC PE Exam. I decided to find a different method of studying and purchased the DTC HVAC Test Drive module to see if the lectures, presentations, and problems would work for me. I was very impressed with the quality of the program and completed all the modules […]
