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Blog

Right-Sizing Industrial Draft Fans for Efficiency Gains

To achieve optimum efficiency, an industrial fan manufacturer needs to size and design a fan so that its performance curve and system resistance curve intersect at an efficient point. If the system resistance curve is not accurately predicted, fan performance and operating efficiency are likely to suffer. Unfortunately, not all… Read More

Mitigating Wear Caused by PRBC to Draft Fans

Power plants burn powder river basin coal (PRBC) to benefit from its relatively low sulfur content and price. The use of PRBC allows a power plant to meet stringent requirements on S02 emissions without a major investment in pollution control equipment such as a scrubber. However, PRBC also has an… Read More

Preserve Your Equipment with Mechanical Dust Collectors

Mechanical dust collectors have been used with biomass-fired boilers for more than 60 years. Today, they are primarily integrated into air handling systems as a “precleaner” that removes ash and sand particles from flue gas, thereby extending the operational life of induced draft (ID) fans and pollution control equipment. A… Read More

Taking a Total Systems Approach to Air Handling Systems

We recently developed an air handling system for a brownfield redevelopment project in Antioch, California, which really brought into focus our thinking about our total systems approach to air handling equipment. First and foremost, consider that the redeveloped plant: Was to have a net output of 930 megawatts Was to… Read More

Hybrid ID Fan Designs Promise Major Efficiency Gains

Pulp and paper mill lime kiln ID fans are some of the most difficult to design. Typically, they are oversized and operate with a damper that remains 40–50 percent closed. The pressure loss across the fan inlet or outlet damper can result in a significant waste of energy, meaning that… Read More

The Expanding Role of Biomass in the Power, Paper, and Cement Industries

Earlier this year, the U.S. Energy Information Administration (EIA) projected nearly a 400-percent increase in biomass electricity generation by 2040. This marked growth in biomass use is fueled in part by federal incentives such as the Biomass Research and Development Initiative, evolving federal emissions standards, state Renewable Portfolio Standards, and… Read More

Air Handling Efficiency Ratings that Really Matter

Increasingly, RFPs for air handling systems stress the need for efficiency. We’ve seen and responded to quite a lot of these requests, developing a host of strategies for addressing efficiency concerns for existing systems, as well as designing all-new, bleeding-edge draft systems that raise the bar. In reviewing all of… Read More