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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


Calculating Economics of HVAC Systems

Consulting-Specifying Engineer, Dec. 2016.
http://www.csemag.com/single-article/calculating-economics-of-hvac-systems/3d4582c584ab8a0192fda3f906d67a07.html

"Codes and standards, equipment efficiencies, energy modeling, commissioning, energy-conservation incentive programs, and lifecycle cost analysis all play into determining the economics of HVAC systems. Included are key aspects a mechanical engineer may need to consider when specifying HVAC systems into new or existing buildings, with a focus on the economic analysis provided to the client."

Understanding the Fan-Efficiency Rules

Consulting-Specifying Engineer, Nov. 2016, by Wade W. Smith.
http://www.csemag.com/single-article/understanding-the-fan-efficiency-rules/f6487a0a905b99d5c6ff3dfdbf3f9d0c.html

"Fan efficiency is critical in HVAC and process air systems. The new proposed Department of Energy standard will drive changes in how engineers design air systems to minimize fan energy."

Fan Selections and Their Energy Impacts, Part 2 of 2

HPAC Engineering, Oct. 2016, by Khalil Kairouz.
http://hpac.com/iaq-ventilation/fan-selections-and-their-energy-impacts-part-2-2

"Fans and fan systems can be significant consumers of energy in commercial applications and the greatest consumer in industrial ones. Concerned about underperformance, designers tend to compensate for uncertainties by adding capacity to fans. Oversizing fan systems creates problems that can increase costs and decrease reliability. This article explains how to evaluate fans and fan systems and their impact on operating costs."

Chiller Plant Optimization: The Role Of Controls

Engineered Systems, Oct. 2016, by Carlos Petty.
http://www.esmagazine.com/articles/97961-chiller-plant-optimization-the-role-of-controls

"Properly selected automated controls to minimize chiller plant energy, power consumption, and the cost of operations are essential for overarching chiller plant performance. Effective plant managers are driven to operate their plants at the lowest life cycle costs possible. This begins with the initial first cost of construction and recurring plant lifecycle operating costs, while still accounting for all the complexities and interaction among major plant equipment components."

The Internet of Things and Intelligent Facilities Management

HPAC Engineering, Nov. 7, 2016, Leroy Walden.
http://hpac.com/internet-things/internet-things-and-intelligent-facilities-management

"The application of intelligent-building and IoT technology should support three important goals: reduce costs, reduce risk, and improve the occupant experience."

Advanced Heating Technologies for VRF

Construction Specifier, Oct. 2016, by Cain White.
http://www.constructionspecifier.com/advanced-heating-technologies-for-vrf/

"Cold temperatures and disruptive precipitation create problems every year. When it comes to heating spaces, the challenge tends to be how to do 
it effectively and efficiently...Variable refrigerant flow (VRF) makes the most of the square footage and budget while offering energy-efficient and reliable technology providing superior occupant comfort. It achieves success by dividing a building’s interior into zones, each of which can be operated separately."

ASHRAE/IES Publish 2016 Energy Efficiency Standard [ASHRAE 90.1]

ASHRAE News, Oct. 26, 2016, by Jodi Scott.
https://www.ashrae.org/news/2016/ashrae-ies-publish-2016-energy-efficiency-standard

"Numerous energy savings measures resulting from industry input are contained in the newly published energy efficiency standard from ASHRAE and IES. ANSI/ASHRAE/IES Standard 90.1-2016, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings, contains 125 addenda published since the 2013 standard. This 2016 version is the 10th edition published since the original standard was first published in 1975 during the energy crisis of the United States."

Know When, Where to Specify VRF Systems

Consulting-Specifying Engineer, Sept. 2016, by James M. Del Monaco.
https://www.csemag.com/industry-news/codes-and-standards-updates/single-article/know-when-where-to-specify-vrf-systems/afe0f6f206f06f553b360c1b00bb694b.html

"Variable refrigerant flow (VRF) offers an alternate HVAC solution. Its key attributes include zonal control, energy efficiency, and indoor air quality (IAQ). To help facilitate their successful design and operation, engineers should take advantage of the available resources and training offered by manufacturers, utilities, and others."

Fan Selections and Their Energy Impacts, Part 1 of 2

HPAC Engineering, Sept. 2016, by Khalil Kairouz and Dale Price.
http://hpac.com/iaq-ventilation/fan-selections-and-their-energy-impacts-part-1-2

"Evaluating fans and fan systems and their impact on operating costs."

Stanford University's "Fourth-Generation" District Energy System

District Energy, 4th Quarter 2016, by Joseph C. Stagner.
http://www.districtenergy-digital.org/districtenergy/2016q4?sub_id=DOwgMT0rNL8TV&folio=19&pg=21#pg21

"In 1987 Stanford took a giant step forward in efficiency and environmental stewardship with the installation of a 50 MW natural gas-fired cogeneration plant to provide electricity, steam and chilled water for its campus. Three decades later, the Cardinal Cogeneration plant has been replaced by the new $468 million Stanford Energy System Innovations (SESI) project...."

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