The results of the ASHRAE project I finished are described
below. The final report package includes lots of EnergyPlus
IDF files implementing the 30 measures examined as well as
the scripts used to generate them with Eppy.
Jason
-------- Forwarded Message --------
Subject: New Research from ASHRAE Outlines Measures to
Reach Toward Net Zero Energy
Date: Tue, 26 Apr 2016 08:50:42 -0400
From: Jodi Scott
To: jglazer at gard.com
https://us.vocuspr.com/Publish/518343/vcsPRAsset_518343_117612_36341084-7df7-46be-ae46-1ec8b982302e_0.gif News
1791 Tullie Circle, NE ? Atlanta, GA
30329-2305?404-636-8400 ? www.ashrae.org
For Release:
April 26, 2016
Contact: Jodi Scott
Public Relations
678-539-1140
jscott at ashrae.org
*New Research from ASHRAE Outlines Measures to Reach Toward
Net Zero Energy*
ATLANTA ? Application of 30 specific energy savings measures
across all building types and climate zones resulted in
cutting energy use by nearly half, according to results of
newly approved research funded by ASHRAE.
The national weighted change is 47.8 percent more energy
efficient than Standard 90.1-2013 based on site energy and
47.8 percent more energy efficient than 90.1-2013 based
source on energy.
The question of ?how energy efficient can commercial and
multifamily buildings become in the near future if first
cost is not considered? was explored in ASHRAE 1651-Research
Project, ?Development of Maximum Technically Achievable
Energy Targets for Commercial Buildings: Ultra-Low Energy
Use Building Set.?
?The value of establishing such ultra-low-energy targets for
buildings is two-fold,? Jason Glazer, principal engineer for
GARD Analytics who oversaw the project, said. ?These targets
will indicate to building design professionals what may be
achieved if first cost is not considered and challenge the
creativity of those professionals to achieve similar results
in actual designs with the real-world constraints of first
costs. They also will help advance design guides, standards
and codes by providing an ultimate goal.?
For the project, researchers assembled a list of energy
efficiency measures that can be included in the design of
non-residential buildings. The list included both commonly
used and cutting edge energy efficiency measures, according
to Glazer.
From the resulting list of almost 400 measures, 30 were
chosen for additional analysis. Sixteen prototype buildings
that were consistent with Standard 90.1-2013, /Energy
Efficiency Standard for Buildings Except Low-Rise
Residential/, across 17 climate zones were used as baseline
models. The 30 measures then were individually modeled. Each
of the 30 measures, often with many options, were applied to
each building and climate combination. In general, the
measures were applied in the following order:
* Reduce internal loads
* Reduce building envelope loads
* Reduce HVAC distribution system losses
* Decrease HVAC equipment energy consumption
* Major HVAC reconfigurations.
?It is useful to understand how far energy efficiency
measures can go to reduce the use of energy in the built
environment,? Glazer said. ?It is also important to
understand that many of the measures used in the project are
widely available today.?
After each measure was applied to each of the 272 building
and climate combinations, if the energy consumption was
reduced, it remained in the model. After all 30 measures
were applied, the projected U.S. national weighted energy
consumption for new buildings was nearly cut in half
compared to Standard 90.1-2013.
The 30 energy efficiency measures modeled were:
* LED Exterior Lighting
* Highest Efficiency Office Equipment
* High Performance Lighting (LED)
* Shift from General to Task Illumination
* Optimal Daylighting Control
* Optimal Roof Insulation Level
* Optimal Choice of Vertical Fenestration
* External Light Shelves
* Daylighting Control by Fixture
* High Performance Fans
* High Performance Ducts to Reduce Static Pressure
* Demand Controlled Ventilation/CO2 Controls
* Multiple-Zone VAV System Ventilation Optimization
* Optimal Water/Air Cooling Coils
* Occupant Sensors for Air Handling Equipment
* Energy Recovery Ventilators
* Indirect Evaporative Cooling
* High Efficiency/Variable Speed Packaged DX Cooling
* High Efficiency Heat Pumps
* Ground Source Heat Pump
* High Efficiency and Variable Speed Chillers
* Heat Recovery from Chillers
* High Efficiency Boilers
* High Efficiency Building Transformers
* Chilled/Cooled Beam
* Dedicated Outside Air System with Heat Recovery
* Underfloor Air Distribution
* Hybrid/Mixed Mode Ventilation
* Radiant Heating and Cooling and DOAS
* Variable Refrigerant Flow Air Conditioning
The cost of ASHRAE 1651-RP, /Development of Maximum
Technically Achievable Energy Targets for Commercial
Buildings: Ultra-Low Energy Use Building Set/, is free for
ASHRAE members ($30, non-members.) To order, visit
www.ashrae.org/bookstore
or contact ASHRAE Customer Contact Center at 1-800-527-4723
(United States and Canada) or 404-636-8400 (worldwide) or
fax 678-539-2129.
ASHRAE, founded in 1894, is a global society advancing human
well-being through sustainable technology for the built
environment. The Society and its more than 55,000 members
worldwide focus on building systems, energy efficiency,
indoor air quality, refrigeration and sustainability.
Through research, standards writing, publishing,
certification and continuing education, ASHRAE shapes
tomorrow?s built environment today. More information can be
found at www.ashrae.org/news
###
