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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


School Integrates DDC for VRF to Improve Control, Energy Management

HPAC Engineering, Apr. 2016, by Alerton.
http://hpac.com/building-controls/school-integrates-ddc-vrf-improve-control-energy-management

"When York County School Division renovated Magruder Elementary School in Williamsburg, Va., in 2015, it chose to install variable refrigerant flow (VRF) for heating and cooling. The wall controllers supplied by the VRF manufacturer, however, lacked dual set points, night setback, and consistent interoperability across competing systems, restricting the school division’s ability to manage energy use. For more robust and consistent control, [the VRF was integrated with a communicating sensor-controller combination]."

Unique Approach to High-Efficiency Laboratory-Exhaust Energy Recovery

HPAC Engineering, Apr. 2016, by Craig Buck.
http://hpac.com/iaq-ventilation/unique-approach-high-efficiency-laboratory-exhaust-energy-recovery

"The addition of adiabatic/evaporative exhaust cooling to a laboratory run-around-coil heat-recovery system at the College of Charleston [SC]."

Case in Point: School District Aces Efficiency, Flexibility with VRF

Engineered Systems, May 2, 2016.
http://www.esmagazine.com/articles/97709-school-district-aces-efficiency-flexibility-with-vrf

"Several schools in the Hazelwood School District north of St. Louis were retrofitted with heat recovery systems. This allowed some schools to reduce installed tonnage by up to 50% and also gave teachers greater control of classroom comfort."

Classroom Ventilation: Meeting Today's Challenges

Engineered Systems, May 2, 2016, by Steven G. Liescheidt.
http://www.esmagazine.com/articles/97718-classroom-ventilation-meeting-todays-challenges

"Budgets, codes, and technologies are constantly shifting and evolving. These days, even the classrooms are often portable. Staying one step ahead will depend on your knowledge of current design options and how to integrate them into the space."

A Comprehensive Look at the Intelligent Building

Consulting-Specifying Engineer, Apr. 2016, by Steve Brown, Kurt Karnatz, and Rob Knight.
https://www.csemag.com/single-article/a-comprehensive-look-at-the-intelligent-building/66f3fdc8eabebe681dbabd1dff01d68f.html

"Technology is changing what’s possible for buildings. With the advent of smart building technology, heating, cooling, electrical, lighting, fire/life safety, and other systems need monitoring and intercommunication for optimized efficiency and operation."

Should we Promote Heat Pumps to Save Energy and Reduce Greenhouse Gas Emissions?

American Council for an Energy-Efficient Economy, May 4, 2016, by Steven Nadel.
http://aceee.org/blog/2016/05/should-we-promote-heat-pumps-save

"In order to examine which applications are good for obtaining cost-effective energy savings from heat pumps, ACEEE conducted a pair of analyses that we are releasing today. One addresses opportunities to replace electric resistance heat with heat pumps and the other addresses replacing gas furnaces with heat pumps."

High-Performance High-Rise

Building Operating Management, Apr. 2016, by Saied A. Nazeri.
http://www.facilitiesnet.com/hvac/article/High-Performance-HVAC-Helps-Bring-LEED-Platinum-to-350-Mission--16545

"The HVAC system at 350 Mission [San Francisco] aims for top marks in both energy efficiency and occupant satisfaction."

Data Centers and Ab/Adsorption Chillers

Engineered Systems, Apr. 2016, by Marcia Karr.
http://www.esmagazine.com/articles/97665-data-centers-abadsorption-chillers

"A few circumstances in a data center make it ripe for a CHP design to boost efficiency. Let’s get into the options within both relevant chiller types, why payback may be shorter than expected, and the assorted potential benefits from lower costs to higher reliability. Some tips from an array of manufacturers’ reps round out this useful investigation."

Rooftop Refrigeration Unit Performance

ASHRAE Journal, Apr. 2016, by Kenneth M. Elovitz.
http://bookstore.ashrae.biz/journal/download.php?file=2016Apr_034-043_Elovitz.pdf

"Diagnosing a rooftop air-conditioning equipment performance problem requires analyzing complete refrigeration system performance data. The systematic approach described in this article resulted in replacing orifice-type metering devices with a traditional thermal expansion valve—and remedying insufficient dehumidification."

A Simple Approach to Affordable GSHPs

ASHRAE Journal, Apr. 2016, by Steve Kavanaugh and Chris Gray.
http://bookstore.ashrae.biz/journal/download.php?file=2016Apr_014-025_Kavanaugh.pdf

"Conventional wisdom says ground source heat pumps (GSHPs) should not be considered for commercial and institutional buildings because of the added cost. This article investigates how building owners leasing the ground heat exchanger can make GSHPS affordable for commercial and institutional applications."
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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