sue and bill gross hall smart labs handout
DESCRIPTION
Handout - Sue and Bill Gross Hall Energy Features for a Smart LabTRANSCRIPT
Bill and Sue Gross Hall Features
BUILDING ENVELOPE
Concrete structural frame, high thermal mass. Light-colored concrete design (reducing heat gain) Ultra-high-performance glazing (Solarban). Shaded entry glazing via setback and overhang elements T-24 Cool-roof material R-30 roof insulation Sun-shades on south and west exposures Landscape belts at building perimeters reducing heat and reflection impacts
LIGHTING
Dimmable lighting systems for meeting spaces Perimeter day-lighting controls. Occupancy controlled office, laboratory, and fume hood lighting. LED Task Lighting Efficient lighting layout, T-24 design:
o With lighting control credits: Offices – 0.49 w/sf Labs – 0.66 w/sf Overall Conditioned Space – 0.61 w/sf
ELECTRICAL
Low power design elevators High-Efficiency Transformers
MECHANICAL SYSTEMS
Out-perform Title 24 by energy performance by more than 36 percent Operable windows with air conditioning interlocks NEMA premium efficiency motors Use of variable speed drives for AHU’s, pumps, and lab exhaust fan motors VAV Laboratory air system Aircuity smart-controls for laboratory air systems Minimum of 4 air changes per hour in occupied laboratories Minimum of 2 air changes per hour in un-occupied laboratories Energy efficient VAV fume hoods Low velocity air handling units – 350 fpm face velocity Low pressure drop laboratory air system design Low velocity air distribution system Low velocity exhaust ductwork Use of duct liners in lieu of sound attenuators Rest Room occupancy controlled ventilation
WATER CONSERVATION MEASURES
Stormwater runoff control Drought tolerant landscape selection Reclaimed irrigation water Water conserving plumbing fixtures
o Ultra-low flush Urinalso Dual-flush Toilets
Smart Lab Parameters
ParameterWas Best Practice
UCI Smart LabSmart Lab
Stretch GoalsOut-perform
ASHRAE 90.1 (CA Title 24, Part 6)
20% UCI currently outperforms 2005 Title 24 standards by > 20%. Recent
construction achieved 33%. Expect to out-perform 2008 Title 24 standards (effective 1/2010) by 20% or more.
Outperform 2005 CA Title 24 by 50%
Occupied lab air-changes/hr. (ACH)
6 ACH 4 ACH w/centralized demand controlled ventilation (CDCV), pilot testing
4 ACH w/CDCV
Unoccupied air-changes/hr. w/setback
No setback 2 ACH with occupancy sensor & CDCV in fume hood driven lab, pilot testing
2 ACH with occupancy sensor & CDCV
Fume hood – face velocities
(occupied)
100 FPM Use low flow fume hoods. Our initial study encouraging at 70 fpm face
velocity. Awaiting Cal/OSHA variance to further test.
60 FPM (using low flow fume hoods
where applicable)
Fume hood – face velocities
(unoccupied)
60 FPM Use low flow fume hoods. May be achievable in fume hood driven lab to
reduce to 40 FPM.
40 FPM (using low flow fume hoods
where applicable)Fume hood
auto sash closersNone Other features more cost-beneficial
when hood density is not highIn fume hood-driven
lab needs to be standard feature on
new hood.Exhaust stack
discharge velocity~3,000 FPM
w/bypass air (typical)
Increasing stack height (~ 5 ft.) with lower stack velocities (~1,600 FPM) is
a typical tradeoff with high benefit
Optimize stack height and stack velocity
based on wind tunnel study of existing
facility with no by-pass air.
Lab illumination power density
0.9 watt/SF 0.66 watt/SF power density currently achievable through use of light-sensing
auto dimmers
0.6 watt/SF w/LED task lighting
Daylight sensors for fixtures near windows
Yes See above Yes
Energy Star freezers and refrigerators
Yes Exchange program in effect for older refrigerators. Required by policy for all
new equipment purchases.
Yes
Duct noise attenuators Few<0.1 in. w.g. of
static loss
None - Reduce noise by using two smaller fans in parallel instead of a
single larger fan.No attenuators used due to large
associated pressure drop. Provisions in ductwork for future attenuator, if
necessary
None
Air-handler/filtration airspeeds (max.)
400 ft/min 350 ft/min currently achievable (Example: Gross Hall)
300 ft/min.
Total laboratory ventilation system
pressure drop (supply+exhaust)
6 in.w.g. 5.75 in. w.g. currently achievable in new construction
< 5 in.w.g. (including dirty filter allowance)