Energy modeling project

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ELLIS RESIDENCE Building Information Front View & Floor Plan Orientation of Views Locations South-East Side South-West Side Architects: Coates Design General Contractor: Smallwood Design and Construction Mechanical Engineer: Sound Mechanical Project Area: 2,560 sqf Project Year: 2010 Bainbridge Island, Washington, USA Hui Ling Chang

Transcript of Energy modeling project

Page 1: Energy modeling project

Printing:ELLIS RESIDENCE

Building Information

Front View & Floor Plan

Orientation of Views

Locations

South-East Side South-West Side Architects: Coates Design

General Contractor: Smallwood Design

and Construction

Mechanical Engineer: Sound

Mechanical

Project Area: 2,560 sqf

Project Year: 2010

Bainbridge Island, Washington, USA

Hui Ling Chang

Page 2: Energy modeling project

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Hui Ling Chang

Sun Chart

Direct Normal Radiation

Monthly Diurnal Averages

Monthly Diurnal Averages

Legend-hourly averages

Wind Wheel

Legend

WEATHER CONDITIONS

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Building Performance Evaluations

Modeling energy performance of selected building in different software

Energy Pro

HEED

Modeling Tools

HEED EnergyPro Energy Plus Design Builder IESVE EQUEST

DesignBuilder

IESVE

IES

eQUEST

SIMULATION TOOLSHui Ling Chang

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Design Summary Chart

HEED Energy Pro eQuest Design Builder IES-VE

Heating sys Best furnace 0.97 AFUE Best furnace 0.97 AFUE

Cooling sys Split System, 19.5 SEER Split DX, 19.5 SEERPackaged Terminal

Heat PumpSplit System Split System

DHWHeat Pump

Energy factor=2Electric Heat Pump Electricity Equipment Electric Heat Pump N/A

Wall

Stucco, 9" insulated foam

forms concrete filled and

plaster board interior

Masonry, R-21 Wall8 in. CMU with wood

external finish

Wall 116

(Mass Wall)

8 In. Heavy Weight

Concrete Block

InsulationSuperer insulation to 2

times curren codeInsulation

2 in. polyisocyanurate R-

12

R-28 Insulation

Board4 In. Insulation

Roof Flat and sloped roof R-38 RoofAttic 8 in. ConcreteFlat roof - 19mm

asphalt on 75mm screed

4 In. Wood

with 12 In. Insulation(

ASHRF 212, U=0.0204)

FloorSlab on grade exposed or

tiledConcrete

vert ext bd, R-20,

4ft deep

IECC-2000 Ground floor

slab

Heavyweight

Concrete Slab Internal

Ceiling

(CNCR0001, U=0.3468)

Infiltraion 1.5 SLA 0.06ACH 0.001 CFM/SF 0.06ACH N/A

GlazingClear Triple Pane 1/8" in

wood frame

Triple Pan,

U=0.260 SHGC=.0200

Triple Low-E(e5=o.1)

Clear 1/8", 1/4" Air

Trp LoE (e5=.1) Clr

3mm/13mm Arg

Low-E Triple Glazing

SHGC=0.1576, U=0.2563)

HEATING LOAD EUI COOLING LOAD EUI HOT WATER EUI TOTAL EUI/2

EU

I (K

BT

U/S

F/Y

)

HEED EnergyPro eQuest Design Builder IES-VE WareEUI of various Best Design Buildings

DESIGN CONDITIONSHui Ling Chang

Page 5: Energy modeling project

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Description

The heating and cooling change in different ways in different software by replacing the furnace with heat pump.

Monthly Energy Consumption by End Use

Energy Performance

EVALUATION IN EQUESTHui Ling Chang

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Description

For larger area of window with furnace and heat pump systems

When increasing the area of windows, the design with heat pump decreases more energy because it not only decreases heating energy but also reduces hot water consumption

As built-furnace Best Desgin1-heat pump

Best Desgin1-

with overhangs for all

windows

As built-furnace-bigger

windows

Best Desgin1-

with overhangs for bigger

windows

Eergy Type Electricity Natural Gas Electricity Natural Gas Electricity Natural Gas Electricity Natural Gas Electricity Natural Gas

Unit kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr kBtu/sf yr

Space Cool 0.00 0.00 2.73 0.00 1.30 0.00 0.00 0.00 2.50 0.00

Space Heat 0.00 13.49 0.85 0.00 1.26 0.00 0.00 15.19 1.00 0.00

HP Supp. 0.00 0.00 0.81 0.00 1.00 0.00 0.00 0.00 0.91 0.00

Hot Water 0.00 11.05 0.00 11.06 0.00 11.07 0.00 11.05 8.10 0.00

Vent. Fans 3.18 0.00 3.54 0.00 3.01 0.00 3.03 0.00 1.70 0.00

Ext. Usage 1.57 0.00 1.57 0.00 1.57 0.00 1.57 0.00 1.57 0.00

Misc. Equip. 5.76 0.00 5.76 0.00 5.76 0.00 5.76 0.00 5.76 0.00

Area Lights 2.27 0.00 2.27 0.00 2.27 0.00 2.27 0.00 2.27 0.00

Sub Total 12.78 24.54 17.53 11.06 16.18 11.07 12.63 26.23 23.80 0.00

Total 37.30 28.60 27.25 38.80 23.70

Hui Ling Chang

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Description

The target building was modeled in Energy Plus and the space is divided into five zones

3D Model

Zoning

Chart of System Energy

Heating and Cooling Plants Summaries

Level 2 Level 1

EVALUATION IN IESHui Ling Chang

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Generally, the solar gain does not positively affect external heat conduction gain

Solar Gain & External Conduction

Orientation & Sensible Load

Total Energy

System to Sub-system Energy

Room

No.Orientation Floor Area

Heating

Plant

Sensible

Load in

Jan.

Btu/ft2

External

Conductio

n Gain in

Jan.

kBtu/ft2

1 Overall 1705 0.7 1.99

3 North-west 181 0.94 1.19

4 North-east 171 0.95 1.22

5 South-west 190 0.85 1.06

6 South-east 179 0.87 0.92

The north-east rom has highest heating plant sensible load, but the south-west room has the lowest external conduction gain

Total system energy is compose of 33% electricity that supports auxiliary vent and DHW and 67% gas supports boiler

Hui Ling Chang

Page 9: Energy modeling project

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Description

Evaluate the relation between orientation and solar radiation distribution

Information of Target Room

Room Size: 15’x 10’x 10’ ( L x W x H ) Window of Wall Ratio: 20% Window Size: 5’x 6’ Location: Los Angeles

North

Window

South

Window

West

Window East

Window

EVALUATION OF DAYLIGHTINGHui Ling Chang