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Pumps & Flow Controls

Michaels Energy - Easy fix for wasteful steam systems

Thermostatic radiator valves could provide a welcome boost
In an age when a three-year-old cell phone is considered to be obsolete, steam heating systems, which are often well over 50 years old, get no respect.
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Retrofitting Primary Chilled Water Pumps With VFDs

Take a large hospital, subtract unexamined rules of thumb, add meaningful incremental improvements like VFD’s and a controls upgrade, and what do you get? Smarter engineering via improved performance for both the pumps and the chillers. But it all starts with one little question.
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Pumping and Flow Controls in Geothermal Heat Pump Systems

What are the key technical challenges and design options for optimizing a geothermal heat pump design? Review the pros and cons involved with centralized or distributed pumping, with hybrid or decoupled systems, and with the controls that can guide them.
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Case in Pont

Sleeping easier: Vermont hotel’s pump retrofit gives peace to both patrons and facility manager

Kevin Amyot had serious qualms last spring when contractor Ed Friedrich first proposed a major pump-retrofit project at the Sunset Motor Inn, one of the properties Amyot manages for the H. A. Manosh Corporation in Morrisville, VT. Friedrich’s $13,000 estimate called for the replacement of 18 fixed-speed circulating pumps in the heating system at the Sunset with 10 circulators from the Grundfos Pumps Corporation.
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Geothermal Think Tank Takes On The Extraordinary Job

For the massive 235,000-sq-ft Merrimack County Nursing Home in New Hampshire, the geothermal source available nearby may not have been the fountain of youth, but it did prove key to the center’s “uber-green” mechanical system retrofit. See how the companies involved brought together 16 wells, over 300 water-to-air heat pumps, and the rest of the 615-ton system to serve this 290-bed facility.
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Take Control Of Your System With Differential Pressure Control

Effective hydronics, like many things in life, is about maintaining balance. Learn more about achieving the three key conditions necessary for giving your modern controller a fighting chance to do its job.
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Energy audit, personal guarantee sell management on booster system retrofit

Veteran New York plumbing contractor Evan Samouhos was so confident in the potential energy savings offered by a new domestic water booster pump system that he fronted the purchase himself.
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Gateway City Apartment Builiding Goes Single-Pipe

This large complex is welcoming a host of new arrivals, from new boilers and chillers to an overhaul of its hydronic strategy. Avoiding a whole lot of drilling was one benefit of their new design choice. Balancing first cost, maintenance costs, and the system itself were additional positives for keeping all 225 units comfortable and affordable.
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Energy Retro-Cx

Month 3- The Energy Conservation Opportunity: K-12 School Building Unit Ventilator System Application — Solution Implementation and Monitoring, Measuring, and Benchmarking
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Large Scale Geothermal Heat Pump Systems

With the help of advances in intelligent controls and a shift in design mindset, these systems can steer buildings toward smaller equipment sizes and associated savings. Review three projects and consider the benefits of keeping an upcoming project in the loop.
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Engineered Systems Magazine

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2014 December

Check out the December 2014 issue of Engineered Systems.
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System Design

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THE ENGINEERED SYSTEMS STORE

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The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

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Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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