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Geothermal HVAC

Wastewater Energy Transfer Hits the Big Time

This technology, which extracts the heat by sending wastewater through a heat exchanger, is closely related in concept to ERVs.
July 7, 2024
Jay Egg and Kristy Egg

Wastewater energy transfer has risen to the top as a preferred initial method to begin the decarbonization efforts for commercial buildings and thermal energy networks of all types and sizes.


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New Hampshire-Based Civil Engineering Firm HSI Joins IMEG

July 3, 2024

The merger helps position both firms for continued growth in the northeastern U.S.


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Feature

Pipe-Joining 101: Commercial Plumbing, Heating and Air Systems, Part 2

The pros and cons of threaded, brazed/soldered or compression joints are discussed.
July 1, 2024

The final joint selection for commercial plumbing, heating and air system design is critical to system effectiveness and efficiency; it directly impacts construction, commissioning and maintenance processes. Part 2 continues the pipe-joining discussion with threaded, brazed/soldered or compression joints.


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Feature

Leveraging Social Media for Plumbing Professionals

Publicize your achievements, enhance company awareness and connect with key industry decision-makers
July 1, 2024

Social media such as LinkedIn can provide plumbing professionals with a business-oriented channel to engage with potential clients and industry partners, and effectively communicate their value proposition


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Feature

The Ins and Outs of Liquid Nitrogen System Design

A well-planned LN2 cryogenic storage system is critical to ensure efficient and safe application by adhering to relevant codes and design criteria.
July 1, 2024

LN2 cryogenic storage systems are crucial resources in the health-care, industrial and pharmaceutical sectors. Engineers must adhere to relevant codes and design standards, use appropriate design criteria, and consider delivery truck schedules and outdoor temperatures to ensure safe and reliable liquid nitrogen storage.


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Feature

Clean Energy’s Impact on Piping Systems

As the clean energy transition drives increased demand for copper, projects will face heightened susceptibility to market dynamics and force changes in materials the engineers choose.
July 1, 2024

The demand for copper in clean energy projects increases as the amount of copper produced decreases. An alternate piping source is needed: plastic. Greg Swafford explains the copper deficit and walks us through the main considerations when switching piping materials.


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Feature

DHW Return Design: Doing It Right and the Risks of Doing It Wrong

As the difficulty in designing and balancing these systems increases with system size and complexity, so does the importance of doing it correctly.
July 1, 2024
Aaron Bock PE

One of the most common plumbing system issues I’m brought into near punch list time or shortly after occupancy is inadequate water temperature at a fixture or in a general area. 


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Feature

An Expert Guide to Venting In-Wall Tank Water Closets

ITWCs offer an aesthetically pleasing look, yet innovative techniques and fittings are required to vent and pipe the waste properly.
July 1, 2024
Warren Rosenbrook PE, CPD, FASPE

In-wall water closets include concealed tanks inside the wall, resulting in a clean aesthetic for office, hospitality and other commercial restrooms. Plumbing engineers and designers are responsible for configuring the proper venting and waste removal for these buildings using a variety of fittings and innovative installation techniques.



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Feature

Systems Architecture for Zero Net Energy Performance in Multifamily and Office Buildings, Part 2

Ventilation options with best practices for implementing high-mass radiant floor cooling.
July 1, 2024
Albert Wallace

The second part of this series discusses ventilation options, zoning with thermally activated building systems and high-mass radiant floor cooling, the relationship of heat transfer to radiant cooling, and thermal storage with geothermal heat pumps.


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Feature

Health and Wellness Center Taps Into Geothermal

The Stockbridge-Munsee Band of Mohican Indians searched for a sustainable energy system to moderate the tribe’s use of natural resources.
July 1, 2024

The Stockbridge-Munsee Band of Mohican Indians have always been good stewards of their community’s environment. It was no different when it came time to replace the HVAC system in their health center with a geothermal system, empowering the tribe to achieve greater energy independence.


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