CLARK BROCKMAN, SERA ARCHITECTS

Transcription

1 CLARK BROCKMAN, SERA ARCHITECTS

2 TOOLS: ENERGY WORKSHEET BASELINE ENERGY USE:

3 EXAMPLE: Living Building Financial Study UNIVERSITY CLASSROOM IN PORTLAND Normalized Baseline Energy Use Intensity (kbtu/sf) 85.0 Normalized Baseline Energy Use (kwh) 3,612,251 Impact of Design Changes (see sketches) 0.97 Adjusted Baseline EUI (kbtu/sf) 82.5 DOM. HOT WATER FANS & PUMPS TOTAL BLDG LIGHTING HEATING COOLING MISC. EQUIP percent of load 20% 20% 18% 2% 10% 30% 100% calc'd EUI Energy Conservation Measures: Glazing E1 3.0% 7.5% 2.9% 2.2% Improve Glazing E1a Add effective shading devices E1b Walls & Roof E2 6.0% 3.0% 2.1% 2.0% Shaded roof from solar panels E2a Optimize insulation to core performance guide E2b Daylighting (incorporates tuned glazing/shading) L1 50.0% -3.8% 5.0% 0.8% 10.2% Daylight controls (continuous dimming) L1c Orient windows to allow for illumination of teaching wall L1f Lighting L2 20.0% -1.5% 2.0% 0.3% 4.1% Individual occupancy sensors & dimming controls L2b Light colors on walls, ceiling surfaces L2d Occupancy sensor / time clock for corridor lighting L2j Plug Loads P -1.9% 2.5% 0.4% 25.0% 7.6% Occupancy sensor controlled plug loads Pa EnergyStar appliances Pb Centralized power management Pg Mechanical - Schedule M4 7.0% Change of work hours (summer hours) M4a Shift uses for time of day in summer (east vs west) M4b Widen Set Point Temperatures M1 5.0% 5.0% 2.5% 2.2% Widen Set Point Temperatures (expand ASHRAE 55) M1a Subtotal from above Load Reduction strategies (percentage) 70.0% 6.9% 32.0% 0.0% 8.9% 25.0% 29.5% Subtotal Reduced EUI (kbtu/sf)

4 TOOLS: ENERGY MODEL TRACKING LOG MECHANICAL SYSTEM PARAMETERS OWNER AND DESIGN TEAM PROVIDED DATA MECHANICAL ENGINEER ARCHITECT OWNER (FACILITY) LIGHTING DESIGNER OWNER (IT) ALL TEAM ELEVATOR CONSULTANT ENERGY MODEL INPUT AIR SIDE SYSTEM AIR HANDLER (COMPLETE FOR EACH OR INDICATE NUMBER OF IDENTICAL UNITS) Unit Identification Tag Supply CFM Outside Air CFM Supply Temperature Setpoint Supply Fan BHP Supply Fan Control (VFD?) Minimum Flow Ratio Supply Fan Placement Return Fan CFM Return BHP Return Fan Control (VFD?) Heat Recovery Type Heat Recovery Power Consumption Heat Recovery Capacity Control HEAT PUMP (COMPLETE FOR EACH OR INDICATE NUMBER OF IDENTICAL UNITS)(MULTIPLE MULTISTACK MS 50Z6 UNITS) Heat Pump Configuration (Open Loop/Closed Loop) Heat Pump Capacity Heat Pump Efficiency (Indicate efficiency at varying condenser water temperatures) Heat Pump Supply Water Temperature Hot Water Loop delta T PUMPS (COMPLETE FOR EACH, INDICATE IF PUMPS ARE REDUNDANT) Pump Tag Brake Horse Power GPM Head Control (VFD) Minimum Flow Ratio MECHANICAL ENGINEER MECHANICAL ENGINEER MECHANICAL ENGINEER

5 TOOLS: ENERGY MODEL TRACKING LOG ENVELOPE OWNER AND DESIGN TEAM PROVIDED DATA MECHANICAL ENGINEER ARCHITECT OWNER (FACILITY) LIGHTING DESIGNER OWNER (IT) ALL TEAM ELEVATOR CONSULTANT ENERGY MODEL INPUT Roof - by level Description of Roof Construction type (including all layers) Roof U value Roof Emissivity or SRI Reflectivity Walls Sample Assembly 1 Description of Wall Construction type (including all layers) Wall U value Wall Inflitration Rate Infiltration - modeling algorithm used Area (SF) Location description Total Opaque Exterior Wall Area (SF) Glazing/Windows (Daylight vs View, by each Façade or assembly type) Sample Window Type 1 Window/Glass Product Information (Manufacturer, Model, etc) Frame type assumed VLT Solar Heat Gain Coefficient (SHGC), center of glass Shading Coefficient U value - center of glass U value of overall assembly Window Assembly Area (SF) Glazed area (SF) % Glazing Exterior Shading (description/dimensions) Interior Shading (description, % opacity or shading coefficient) Total Window Area (SF) includes frames Total Glass Area (SF) Percent Glazing (%) ARCHITECT ARCHITECT ARCHITECT

6 TOOLS: ENERGY MODEL TRACKING LOG INTERNAL LOADS OWNER AND DESIGN TEAM PROVIDED DATA MECHANICAL ENGINEER ARCHITECT OWNER (FACILITY) LIGHTING DESIGNER OWNER (IT) ALL TEAM ELEVATOR CONSULTANT ENERGY MODEL INPUT Occupant Density (SF/Person unless otherwise indicated) BUILDING AVERAGE Total Building FTE (# people) Short-term visitors <1 hour (average #people/day) Long-term visitors >1 hour (average #people/day) occupied office sf Occupied office sf/ program occupants by Space type Sample space type - Office Lighting Power Density (Watts/SF) BUILDING AVERAGE by Space type Sample space type - Office Plug Load Power Density (Watts/SF) BUILDING AVERAGE by Space type Sample space type - Office Misc Load Assumptions BUILDING AVERAGE by Space type Elevator energy and usage assumptions (kwh) Power Demand (kw or hp) Energy Use (kwh/yr) Quantity OWNER LIGHTING DESIGNER OWNER ALL TEAM ELEVATOR CONSULTANT

7 TOOLS: WATER CALCULATOR z BASELINE WATER USE:

8 EXAMPLE: Edith Green Wendell Wyatt WATER SAVINGS Water Usage Base Case ARRA Goal = 20% Indoor Potable Water Reduction 50% Outdoor Potable Water Reduction Low Flow Fixtures Proposed Water Use Reduction +Rainwater Collection Proposed Water Use Reduction * Graphic combines both Indoor and Outdoor potable use

9 EXAMPLE: Edith Green Wendell Wyatt RAINWATER REUSE SYSTEM Gutter on PV array 3-11 Cooling tower water collection Cooling tower water supply B-2 Overflow to storm drain in case of emergency Planter drains Rainwater for toilet flushing Irrigation Overflow to cistern 170,000 gallon cistern in basement (Former gun target range) Overflow to storm drain 95 th storm event only

10 EXAMPLE: Edith Green Wendell Wyatt ANNUAL WATER STORAGE Irrigation begins Irrigation ends

11 TOOLS: PV CALCULATOR

12 PHOTOVOLTAICS DETAILS

13 EXAMPLE: Oregon Sustainability Center

14 TOOLS: DAYLIGHTING / SHADING S 21 E FAÇADE ORIENTATION MARCH 21ST, NOON MARCH 21ST, NOON OPEN 66% 50% GLAZING GLAZING

15 EXAMPLE: CLSB SHADING STUDY LABORATORIES S 21 E FAÇADE ORIENTATION SCHEME 1: NO SHADING SCHEME 2: HORIZONTAL & VERTICAL FINS SCHEME 3: AUTOMATED LOUVERS

16 EXAMPLE: LABORATORIES FIRST COST REDUCTIONS DUE TO REDUCED MECHANICAL SYSTEMS OPTION A: 66% GLAZING OPTION B: 50% GLAZING SCHEME 1: NO SHADING (-) $ 0.00 (-) $ 109,320 SCHEME 2: VERT/HORZ FINS (-) $ 137,620 (-) $ 218,720 SCHEME 3: AUTOMATED LOUVERS (-) $ 376,060 (-) $ 391,290

17 DISTRICT SCALE ENERGY SYSTEMS + WATER SYSTEMS ECODISTRICT SUMMIT Portland, OR Oct 26-28

18 PERFORMANCE REQ S OUTCOME BASED CODES AND REGS E.G. ARRA and EISA Energy Star Requirements Water Conservation Requirements Energy Conservation Requirements LEED Requirements Score goal: 97 a 20% Indoor potable water reduction 50% Outdoor potable water reduction 55% Fossil fuel reduction 30% Energy usage reduction Gold Required Platinum Goal 30% Solar thermal

19 COST THANK per YOU! SF UNIVERSITY CLASSROOM QUESTIONS / MORE INFORMATION Clark Brockman, clarkb@serapdx.com Twitter@ClarkBrockman SERA Architects Living Building Financial Study LIVING BUILDING AFTER INCENTIVES