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Pumps & Flow Controls

Case In Point

Exploratorium’s new waterfront home dips into the Bay for radiant system

January 30, 2013

When it comes to celebrating the new Exploratorium museum project, located at Pier 15 along San Francisco’s Embarcadero, the engineering and systems design professionals at Integral Group tend to take it a bit … well, personally.


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Married at the Courthouse: VRF & Geothermal

January 30, 2013

The author’s longtime interest in bundling efficiency techniques in a single system eventually led him to a new pairing: VRF zoning technology and geothermal design. See how he got there and how this couple played out for an historic 107-year-old Iowa courthouse that serves the law through the area’s brutal winters and humid summers.


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Michaels Energy - Easy fix for wasteful steam systems

Thermostatic radiator valves could provide a welcome boost
January 23, 2013
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

November 26, 2012
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

November 9, 2012
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

November 9, 2012
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

August 27, 2012
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

April 30, 2012
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

February 2, 2012
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

February 1, 2012
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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3/25/14 2:00 pm EST

Improving Cooling and PUE in Existing Data Centers

On-Demand This webinar will provide cost-effective practical tips and feasible retrofit solutions that can be implemented in operational data centers to address some cooling issues and improve energy efficiency.

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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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