ENERGY ANALYSIS USING COMPUTER AIDED DESIGN ERIC BRENNAN X00076210
Aug 08, 2015
ENERGY ANALYSIS USING COMPUTER AIDED DESIGN
ERIC BRENNANX00076210
WHAT IS ENERGY ANALYSIS?
A measure of energy performance
Suggestions for possible improvement
Projections of cost and savings
BIM TECHNOLOGY
More precise predictions of building performance,
Boosted energy efficiency Thermal Analysis Carbon Footprint Cost savings Code and standards compliances Increased certainty
MODEL 4 Bedroom Council
House in GSDA
9,008 units like this in
SDCC Portfolio
Residential sector in 2008 accounted for 34% of primary energy demand in thermal energy.
OBJECTIVES
Compare BIM model produced Data with Manual data
Make an Environmental Evaluation
Investigate Possible Improvements
Analyze cost difference
MANUAL CALCULATIONS
Exterior Walls HLR – 0.0272W/m^2K Roof HLR – 0.168W/m^2K Windows – 0.33W/m^2K Annual Fuel Cost (NG) – €508.208
/7,713kWh Annual Electricity Cost - €1197.31
/5508kWh C02 Output from NG- 1,588.87kg of C02
Jan-Feb2011 Mar-Aprl2011 May-Jun2011 Jul-Aug2011 Sept-Oct2011 Nov-Dec20110
500
1000
1500
2000
2500
3000
0
100
200
300
400
500
600
700
Gas Consumption & Heatin Degree Days Versus Time
Gas Consump-tion (kWh)
Heating Degree Days
Time (Months)
Gas
Co
nsu
mp
tio
n (
kWh
)
Hea
tin
g D
egre
e D
ays
(Day
s)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
2012 6.0 6.6 8.5 6.6 10.2 12.3 8.0
2011 3.6 7.0 6.3 10.9 11.4 12.4 14.1 13.6 14.0 11.7 9.9 5.7 10.1
mean 4.6 4.6 5.9 7.4 10.1 13.1 14.9 14.5 12.6 10.2 6.5 5.4 9.2
Mean temperature in degrees Celsius for Casement Aerodrome
BIM MODEL RESULTS
Trouble shooting with restricted results
Weather data
Price data
IMAGES FROM BIM MODEL DESIGN PROCESS
WEATHER DATA FROM BIM MODEL
COMPARISON
With data that could be compared the results were very reasonable
GBS @ 15.6 °C CALCS @15.5 °C1960
1980
2000
2020
2040
2060
2080
2100
2120
2140
2160
Heating Degree Days
Heating Degree Days
Source
HD
D
GBS Gas
CALCS E
lectri
city
Calcs
Gas
Calcs
Electri
city
0
0.05
0.1
0.15
0.2
0.25
0.3
Cost in cent per Unit
Cost in cent per Unit
Source
Co
st p
er u
nit
in
cen
t(E
uro
)
BER RATING
143.84kWh/m2/yr
C1 Rating
Acceptable rating
For this type of
dwelling
PROJECTIONS FOR SDCC PORTFOLIO 9,008 Similar Units Total Gas consumption = 69,478.704 MWh Total Cost in Euro of Gas = €4,749,089.664
annually. €192,456.01 in Carbon taxes Total Electrical consumption = 49,616.064 MWh Total Cost in Euro of Electricity =
€10,785,368.48 annually Total C02 Released = 14,312.54 Tonnes of C02
released annually solely by Natural Gas
CONCLUSION
Some success but not the desired result
Met all objectives except producing fully functioning BIM
There is room for improvement in the building
THANK YOU FOR YOUR TIME
This presentation is now finished
I am open to any questions you may have