Tag: NTU

The Number of Transfer Units (NTU) Method is used to calculate the rate of heat transfer in heat exchangers (especially counter current exchangers) when there is insufficient information to calculate the Log-Mean Temperature Difference (LMTD). In heat exchanger analysis, if the fluid inlet and outlet temperatures are specified or can be determined by simple energy balance, the LMTD method can be used; but when these temperatures are not available The NTU or The Effectiveness method is used.

FREE!  Waste Gas-to-Energy Projects

FREE! Waste Gas-to-Energy Projects

Many landfills and waste water facilities are looking to waste gas-to-energy systems to reduce and repurpose their waste gas into clean energy. But, what system works best? And…what’s the best method for managing siloxanes?

Join Lance Roberts, William Slatosky, and Kyle Snyder  for a FREE webinar exploring waste gas-to-energy applications, technologies,

Great Rivers Fall Conference & Expo – Sustaining Our Future Resources

Great Rivers Fall Conference & Expo – Sustaining Our Future Resources

This multi-day workshop features high-quality training and information to prepare attendees for the upcoming construction season, and it sets the tone for longer-range planning on hot topics such as MS4, active and post-construction stormwater management, construction general permit (CGP) compliance and much more. Stormwater, erosion and sediment control, locally-driven policy,

Registration for the 2015 International Road-E-O Now Open!

Registration for the 2015 International Road-E-O Now Open!

SWANA’s Arizona Chapter, the host of this year’s event, has been hard at work to make sure this year’s event will be enjoyable for competitors and guests alike. The Road-E-O is being held in beautiful, Chandler, Arizona, on October 3, 2015. A golf tournament and other optional events are scheduled

Designing Effective Sediment Basins and Traps

My previous article (Stormwater May 2015) discussed the fallacy of requiring the containment of 3,600 ft.3/ac. (250 m3/ha) to develop sediment basins/traps. While effectiveness of these structures will be 100% when they retain water, it is not realistic to expect this amount of runoff is representative of real-world conditions. This

Topcon Introduces Android App For LN-100 Layout Navigator

Topcon Introduces Android App For LN-100 Layout Navigator

LIVERMORE, Calif., USA/ CAPELLE A/D IJSSEL, The Netherlands ““ February 3, 2015 ““Topcon Positioning Group announces the release of a new app designed to drive the LN-100 Layout Navigator system – MAGNET® Construct. The no-cost app, available for the Android market, is built to provide “out-of-the-box” productivity with LN-100W hardware.

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