Industry Market Trends

Natural Gas Boosting Economy While Lowering Carbon Dioxide

October 28, 2013

EIAchartTwo separate reports show that carbon dioxide emissions are falling in the U.S. The reductions are being driven by both consumer and business changes. More so, they seem to correlate with a gradual improvement in the economy. Energy-related carbon emissions in the U.S. dropped 3.8 percent last year to levels not seen in 18 years, according to a report released last week by the U.S. Energy Information Administration (EIA). It's the second largest annual decrease in carbon emissions since 1990, and it happened in a year when gross domestic product grew by 2.8 percent and the population grew by 0.7 percent. The emissions decline was the largest in a year with positive growth in per capita output and the only year to show a decline where per capita output increased 2 percent or more. The EIA notes that the amount of CO2 per million dollars of GDP -- the economy's carbon intensity -- declined 6.5 percent last year. This is the largest drop in the overall carbon intensity since records were kept beginning in 1949. Only two other years, 1952 and 1981 had declines greater than 5 percent.  Read More

Industry Market Trends

How Energy Recovery Shapes Today’s Buildings

October 28, 2013

2013 engineering.com_logo_new_tagline white_modded energy-recovery2This is my favorite engineering topic, bar none. It fascinates me how much energy is required to heat and cool our buildings. Even more interesting is how to reuse that energy to cut waste heat. Design engineers often ask me, “Which method of energy recovery do you prefer?” My answer: “Itdepends on the application” (shocking, right?). This post covers energy recovery in airside HVAC systems and what I look for in helping my engineers determine the right fit.  Read More