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Home » Keywords: » renewable energy systems

Items Tagged with 'renewable energy systems'

ARTICLES

PME0123-Siggy-slide1.jpg

John Siegenthaler: Modifying high-temperature distribution systems for lower-temperature operation — part two

Part two of a series
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
January 3, 2023

As with most things hydronic, there are multiple approaches, and the “best” approach for each installation has to consider cost, aesthetics, access to the existing piping, available wall space and the goal of how the overall system will operate based on existing or newly created zones.



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controller that measures and responds to temperature

John Siegenthaler: Sensor placement is critical to designing successful hydronic systems

Sensible details
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
July 1, 2022

All hydronic systems designed around renewable energy heat sources — as well as those designed around conventional boilers — have at least one controller that measures and responds to temperature. Common examples are temperature setpoint controllers, outdoor reset controllers, mixing controllers and differential temperature controllers. Complex systems that operate in multiple modes, or use multiple heat sources, often have several temperature-based controllers.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: Respecting the Laws — of thermodynamics

How the most fundamental principle applies to heating.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 5, 2021

One of the most fundamental principles used in all areas of science and engineering is the first law of thermodynamics. 


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The Uniform Codes
Radiant Comfort Report

Development of the 2021 Uniform Solar, Hydronics & Geothermal Code

Les Nelson
November 15, 2019

Every three years the International Association of Plumbing and Mechanical Officials publishes a revised and updated version of its signature codes — the Uniform Plumbing Code and the Uniform Mechanical Code. 


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Siggy_single coil

Single coil solution

Optimizing heat exchanger performance in renewable energy systems.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
November 15, 2019

Some renewable energy heat sources require large thermal storage tanks. Examples include systems’ biomass boilers and solar thermal collectors.


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John Siegenthaler: Low temperature leverage

A novel hardware combination offers several benefits.
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
November 8, 2019

Because they generate heat intermittently, renewable energy heat sources such as solar thermal collectors and pellet boilers require thermal storage tanks. So do storage-based systems using off-peak electricity, or micro combined heat and power (MCHP) generation.


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John Siegenthaler: Renewable Heating Design

John Siegenthaler: Be explicit on tubing depth in a slab

Unnecessary compromise
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
July 11, 2019

A commonality among all renewable energy heat sources is that they perform best when coupled to low-temperature hydronic distribution systems. 


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John Siegenthaler: Picking winners

Are geothermal heat pumps economically sustainable in an unsubsidized market?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
June 10, 2019

The U.S. geothermal heat pump industry was breaking out the champagne on Feb. 9, 2018.  That’s the day President Donald Trump signed the Bipartisan Budget Act of 2018, a bill that boosted government spending by hundreds of billions of dollars.


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The geothermal industry continues to lobby Congress to reinstate tax credits

Geothermal industry asks Congress to ‘level the playing field’

‘Hey, you’re using a tax code to pick renewable winners and losers, and that’s not what you should be doing.’
Jen Anesi-Brombach
Jen Anesi-Brombach
April 17, 2017

A bipartisan bill would reinstate tax credits that expired at the end of 2016.


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Roberts Geothermal Solutions in Niles, Michigan

Rehabbed Detroit home goes geothermal

Off the grid in Motor City.
Kentra Lee
December 20, 2016

A previously condemned historic Detroit home goes geothermal.


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More Articles Tagged with 'renewable energy systems'
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