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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

Category: HVAC/R

HVAC/R


Constructing Comfort — One Tool at a Time: It Takes the Right Instruments to Get the Job Done

Air Conditioning, Heating & Refrigeration News, Mar. 3, 2014, by Cherie Preville.
http://www.achrnews.com/articles/126051-constructing-comfort-one-tool-at-a-time

"HVAC contractors aim to make homeowners comfortable in their own houses. To achieve this goal, a growing number of contractors are extending their attention beyond basic HVAC equipment; they’re considering efficiency improvements to the entire residential structure. Once equipped with the right dose of knowledge and the proper tools, contractors are able to offer whole-house “Goldilocks” solutions: Those that fit just right."

What Owners Need to Know About ... Rooftop Units: Repair or Replace?

Heating/Piping/Air Conditioning Engineering, Feb. 2014, by David Negrey. (Free registration required to view full article.)
http://hpac.com/air-conditioning/what-owners-need-know-about-rooftop-units-repair-or-replace

"Most light-commercial HVAC products are designed for a useful life of 15 to 20 years. During that time, however, the reliability and cost-effectiveness of operation often is dictated by factors beyond the manufacturer’s control. At the same time, newer, more efficient HVAC products often can reduce maintenance and utility costs. When it comes to deciding whether to repair or replace an older rooftop unit, it is important to consider a number of factors, including current condition, age, efficiency, maintenance/repair history, and associated utility costs. This article will discuss the process of making an informed decision."

For Better Or For Worse...R-22 RIP (Part 3)

Heating, Plumbing, Air Conditioning, Feb. 2014, by Dave Demma.
http://www.hpacmag.com/news/for-better-or-for-worse-r-22-rip/1002910208/

The first two articles in the series discussed the importance of having an R-22 refrigerant replacement strategy, help in choosing a replacement, and the process of implementing the conversion. 

This 3rd and final article in the series discusses how "a detailed plan can be assembled to ensure the conversion is completed in a minimum amount of time, and the result is a system that operates efficiently and trouble free."

Links to Part 1 and 2:
Part 1 - Oct. 2013 - http://www.hpacmag.com/news/for-better-or-for-worse-r-22-rip/1002665122/?&er=NA

Part 2 - Dec. 2013 - http://www.hpacmag.com/news/demma-r22-refrigerant-conversion/1002789061/


Restoring The Low Limit For Indoor Relative Humidity

Engineered Systems, Feb. 2014, by Gary L. Berlin.
http://www.esmagazine.com/articles/96370-restoring-the-low-limit-for-indoor-relative-humidity

"Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was necessary to use energy to increase productivity, lower scrap and environment impacts, maintain profits, and maintain costs to their customer. It does not matter if their process is related to food, woodworking, textiles, printing, pharmaceuticals, electronics, automotive, laboratories, or maintaining and preserving artifacts in museums and libraries. Controlling the indoor humidity was and is still critical for their applications."

Seawater Warms Up Marine College Building

Engineered Systems, Feb. 2014, by Rob Klinedinst and David Reinheimer.
http://www.esmagazine.com/articles/96378-seawater-warms-up-marine-college-building

"In its latest effort in an ongoing program to green its campus in South Portland, Southern Maine Community College (SMCC) turned to an innovative way to heat and cool one campus building: seawater.

Tapping into nearby Casco Bay, the seawater-based system uses a variable refrigerant flow (VRF) configuration with geothermal heat pumps to heat and cool the 3,250-sq-ft Lighthouse Building, which houses the school’s arts program and offices for The Foundation for Maine’s Community Colleges."

Residential [HVAC] Regulations to Watch in 2014: DOE and EPA Expected to Continue High Level of Activity

Air Conditioning, Heating & Refrigeration News, Feb. 10, 2014, by Kimberly Schwartz.
http://www.achrnews.com/articles/125757-residential-regulations-to-watch-in-2014

"According to the Air-Conditioning, Heating, and Refrigeration Institute (AHRI), the U.S. Department of Energy (DOE) has issued 86 rules regulating the HVAC industry in the past 13 years. And that’s just the DOE. Other federal agencies and various levels of government are making rules that impact the HVAC sector, and industry experts are paying close attention to what may lie ahead in 2014."

 

RTUs Cool More Space Using Less Energy

Air Conditioning, Heating & Refrigeration News, Feb. 10, 2014, by Dan Vastyan.
http://www.achrnews.com/articles/125759-rtus-cool-more-space-using-less-energy

"Some industry experts in the HVAC industry consider gas-fired condensing combustion heating systems to be the final frontier in rooftop heating technology.  As seen during the formative years, throughout the development of high-efficiency residential furnaces, several manufacturers boast condensing rooftop equipment on the market. Most product lines available today are in the 90-92 percent efficiency range, but a few approach 95 percent."

Don't Blow Your Money on a Steam Trap

Consulting-Specifying Engineer, Jan./Feb. 2014, by David Grassl, PE.
http://www.csemag.com/single-article/don-t-blow-your-money-on-a-steam-trap/1ea8d3707c39adae4585b425e07b4f31.html

"Steam and condensate leaks cost buildings and industrial plants millions of dollars in lost energy, while increasing emissions from boilers due to increased operation, creating potential safety hazards, and lowering the reliability of operations. This article will review the many factors that impact the reliability, performance, longevity, and maintenance requirements for condensate return piping systems."

What Owners Need to Know About ... Maximizing Boiler Efficiency

HPAC Engineering, Jan. 2014, by Peter D'Antonio.
http://hpac.com/heating/what-owners-need-know-about-maximizing-boiler-efficiency (free registration is required)

"Hydronic heating systems are becoming increasingly common in commercial buildings, playing an ever-expanding role in high-performance design. This article discusses tried-and-true methods of minimizing costly mistakes and maximizing efficiency."


What Now: Complying With Major- and Area-Source Boiler Rules

HPAC Engineering, Jan. 2014, by Thomas Fitzpatrick.
http://hpac.com/heating/what-now-complying-major-and-area-source-boiler-rules (free registration required)

"Covering both new and existing boilers, which are divided into 19 subcategories, the rules [EPA] establish numerical limits for emissions of five pollutants: carbon monoxide (CO), hydrogen chloride (HCl), mercury (Hg), and filterable particulate matter or total selected metals. There are various requirements regarding start-up and shutdown to meet, and most boilers are required to have a tune-up; meanwhile, a one-time energy assessment is required for affected units."

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The Energy Newsbriefs Blog is a continuation of the weekly Energy Newsbriefs. Please bookmark this site and return frequently. Although we will not be accepting comments from within the Blog, we would be happy to hear from you by email at library@energy.wsu.edu

Archives of the weekly Energy Newsbriefs, from Oct. 2012 – Jan. 6, 2014, may be found on the WSU Energy Library web page.

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