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Home » engineers

Articles Tagged with ''engineers''

uniform flow

David Dexter: Fitting Selection and proper flow

The importance of maintaining uniform flow with minimal disturbance to the flow patterns.
David Dexter 200x200 author profile
David Dexter
April 5, 2023

Codes and standards are intended to provide a minimum level of protection for the public’s health, safety and welfare. And, generally, these documents accomplish that intended purpose in the urban/metropolitan areas of the United States. However, that may not be accurate when one gets into the rural or more isolated areas of the country.


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Overlook-Medical-Center.gif

Armistead Mechanical recognized by NJ Alliance for Action for Overlook Medical Center project

March 16, 2023

Armistead is being honored with a “New Jersey’s Leading Capital Construction Award,” for its role in the hospital’s crucial Cogeneration Plant Replacement project.


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STRATEGIC PLUMBING INSIGHTS

Christoph Lohr: The plural sector and plumbing

An important driver of change in the construction industry.
Christoph Lohr headshot
Christoph Lohr
March 3, 2023

In terms of civic engagement, younger generations have been voting and volunteering at higher rates than previous generations. Regardless of one’s political beliefs, I think we can all agree that politics has become a much bigger portion of daily life. Whether on social media or at our local coffee shop, we all are spending more energy talking about the bigger picture.


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Specialty components

James Dipping: Chemical and non-chemical additives for Legionella control

Specialty components to further reduce the risk of Legionella.
James Dipping headshot
James Dipping
January 6, 2023

Many of the topics I have discussed in my column to this point have been about temperature considerations within the supply and return system based on recommendations in the community and right-sizing domestic water piping to reduce the overall volume of water in the building’s piping system.


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irrigation (farming)

Christoph Lohr: The water-energy nexus and water conservation

Misunderstanding Roy — Part 5
Christoph Lohr headshot
Christoph Lohr
January 5, 2023

Almost 80% of all water consumption comes from two groups: No. 1, thermoelectric power, and No. 2, irrigation (farming). Public supply, which includes industrial buildings, commercial buildings and residences, accounts for only 10%.


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A plumbing professional engineer’s view

David Dexter: The ANSI process versus governmental process

A plumbing professional engineer’s view.
David Dexter 200x200 author profile
David Dexter
December 7, 2022

“Governmental members” may desire a public perception of having “no vested financial interest in” the development process. But there is no requirement or mandate for them to be transparent in avoiding conflicts of interest.


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water piping

James Dipping: A deep dive into water pipe sizing

Selecting pipe size is not as simple as looking at a chart.
James Dipping headshot
James Dipping
November 8, 2022

There is a battle going on in the industry when it comes to domestic water distribution systems, and it lies in how plumbing engineers size domestic water piping. System longevity, pressure drop, water age, noise and building codes will influence the approach taken in sizing a domestic water system.


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plumbing insights

Christoph Lohr: Plumbing research and the larger picture

Misunderstanding Roy — Part 4
Christoph Lohr headshot
Christoph Lohr
November 4, 2022

In 2012, the International Association of Plumbing and Mechanical Officials (IAPMO), the University of Cincinnati (U of C), and the American Society of Plumbing Engineers (ASPE) began to work on a new sizing technique 80 years in the making. The main drivers were Dan Cole (IAPMO) and Steve Buchberger (U of C), and later Toju Omaghomi (U of C). As part of this effort, hundreds of thousands of data points were taken and evaluated to determine actual human behavior and plumbing fixture use in residential homes.


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structural consultant

David Dexter: Who designs the perimeter and foundation drainage system?

Questions asked and answered on ASPE’s Open Forum.
David Dexter 200x200 author profile
David Dexter
October 6, 2022

Recently, the question was asked on ASPE’s Open Forum “Foundation drain pipe — plumbing responsible? Or only between civil and structural?” As originally posted, the designer did not have a Geotech report. But the structural consultant did show the piping around the top of the elevator footing and the perimeter footing for the foundation in their details.


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wash the shampoo out of their hair

Christoph Lohr: Low-flow rates impact sanitary piping and domestic water systems

Misunderstanding Roy — Part 3
Christoph Lohr headshot
Christoph Lohr
October 5, 2022

It hasn’t taken long for some of the most obvious unintended consequences to appear: More people are complaining that their shower experience is deteriorating due to lower flow rates, and shower times are increasing as people have to shower longer to wash the shampoo out of their hair.


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