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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


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 Three decades later, the Cardinal Cogeneration plant has been replaced by the new $468 million Stanford Energy System Innovations (SESI) project...."

Designing With Liquid-Immersion Cooling Systems

Consulting-Specifying Engineer, Sept. 21, 2016, by Saahil Tumber.
http://www.csemag.com/single-article/designing-with-liquid-immersion-cooling-systems/50ef4dcd4e7dee72b8d45e1fa4608abb.html

"Liquid cooling refers to a scenario where liquid (or coolant) must be supplied to the ITE. An IT cabinet is considered to be liquid-cooled if liquid, such as water, dielectric fluid, mineral oil, or refrigerant, is circulated to and from the cabinet or cabinet-mounted equipment for cooling. Several configurations are possible, depending on the boundary being considered (i.e., external or internal to the cabinet). For the same heat-transfer rate, the flow rate requirement for a liquid and the energy consumed by the pump are typically much lower than the flow rate requirement for air and the energy consumed by the fan system. This is primarily because the specific volume of a liquid is significantly lower than that of air."

HVAC Codes and Standards: Cooling and Energy Efficiency

Consulting-Specifying Engineer, Aug. 2016, by Gayle Davis.
http://www.csemag.com/single-article/hvac-codes-and-standards-cooling-and-energy-efficiency/4f684e7f21eada9b13b825014bbfc464.html

"Codes and standards dictate the design of HVAC systems; however, there are ways to improve the design of nonresidential buildings to achieve maximum energy efficiency."

New-Old Refrigerant: Carbon Dioxide for Industrial Refrigeration

ASHRAE Journal, Aug. 2016, by Donald L. Fenton.
http://tinyurl.com/h4r23pt

"CO2 is one of the five natural refrigerants and over the past 20 years has gained popularity, particularly with low-temperature refrigeration for industrial systems."

Premium Power Drive Systems

Heating, Piping, Air Conditioning Engineering, Aug. 2016, by Rob Boteler.
http://hpac.com/motors-drives/premium-power-drive-systems

"Increasingly in industrial and commercial HVAC applications, electric motors are being combined with power converters to form premium power drive systems (PPDS). When used in variable-flow applications, PPDS can deliver savings unmatched by mechanical speed/flow-control systems."

Next Generation Standards: How the National Energy Efficiency Standards Program Can Continue to Drive Energy, Economic, and Environmental Benefits

ACEEE, Aug. 4, 2016, by Andrew deLaski, Joanna Mauer, et. al.
http://aceee.org/sites/default/files/publications/researchreports/a1604.pdf

"Appliance, equipment, and lighting standards have been among the most effective energy efficiency policies, delivering increased savings over multiple rounds of standards for many products. But how much more can be accomplished? What is the potential for additional savings from future standards, specifically for the presidential administration that begins in 2017? This report estimates the savings opportunities from updates to existing standards. We also offer five strategic recommendations for improving the national standards program and further increasing savings."

Integration: Electrical and HVAC Systems

Consulting-Specifying Engineer, July 2016, by Ryan E. Ishino and James A. Freeman.
http://www.csemag.com/single-article/integration-electrical-and-hvac-systems/b738225d21462b6a2e213785bd1ae460.html

"System integration of electrical and HVAC systems provides a smart building solution, where the systems are coordinated to allow opportunities to lower costs and achieve greater energy efficiencies."

Less Steam, Please: Thermal Power Reduction In Health Care

Engineered Systems, July 2016, by Carl C. Schultz.
http://www.esmagazine.com/articles/97816-less-steam-please-thermal-power-reduction-in-health-care

"It might seem like an odd objective, but the potential efficiency gains are real. And from heat recovery chillers to modified humidification targets so are the opportunities to replace steam production with hot water generation and to manage remaining steam needs more intelligently."

The Future of Air Conditioning for Buildings

U.S. Dept. of Energy, EERE, July 2016, by Navigant Consulting and Oak Ridge National Lab.
http://www.energy.gov/eere/buildings/downloads/future-air-conditioning-buildings-report

"This report characterizes the current landscape and trends in the global air conditioning (A/C) market, including discussion of both direct and indirect climate impacts, and potential global warming impacts from growing global A/C usage. The report also documents solutions that can help achieve international goals for energy efficiency and greenhouse gas (GHG) emissions reductions."

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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