SOLAR ZERO ENERGY BUILDING

Guided by:

Ms. Manju.PAsst. professor

Dept. of CE, GCE Kannur

Presented By:

SHAMJITH

KM

Roll No: 1014810-03-14 Dept. of CE, GCE Kannur

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INTRODUCTION

Energy crisis

Environmental

issues

Zero energy building (ZEB)/zero net energy (ZNE) building

Net energy consumption = 0

Carbon emissions = 0

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Energy feed to grid = energy consumed

WHY ZEB?

Traditional buildings consumes 40% of

the total fossil energy

Buildings are responsible for 47% of national

energy consumption

ZEB design has become a high priority for

architects and multi-disciplinary researchers

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HISTORY

• First documented attempts

– In the form of solar houses

MIT Solar House (1939) Vagn Korsgaard Zero

Energy Home (1973)

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Construction industry – challenges

Climatic changes Energy shortage Urbanization

Sustainable , environmental friendly and economic buildings

Solution

SCOPE OF ZERO ENERGY BUILDINGS

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ZEB & GREEN BUILDING

ZEB May Or May Not Be Considered "Green"

Environmentally Responsible

Resource Efficient

Green building - Throughout building's Life-cycle

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METHODOLOGY

Study the economic features of the building

Model the lighting and energy storage system

Achieve energy demands

Describe the passive strategies used in the house

Calculate the house heating and cooling loads

Study the weather and solar radiation data

(Prof. Javad Eshraghi (2014))

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CLIMATE DATA ANALYSISWith Help Of Climate Data Analysis Tools (CDAT)Slope Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

80 14.24 16.09 14.39 12.87 12.34 12.00 12.33 14.01 16.36 17.08 15.08 12.27

65 14.47 16.64 15.99 15.64 15.71 16.04 16.37 17.85 19.50 19.02 16.11 12.74

60 14.41 16.69 16.40 16.45 16.76 17.34 17.65 18.99 20.35 19.45 16.27 12.77

55 14.29 16.67 16.74 17.19 17.75 18.59 18.87 20.05 21.08 19.77 16.33 12.72

40 13.54 16.18 17.33 18.96 20.30 21.92 22.08 22.64 22.57 20.03 15.92 12.20

35 13.18 15.96 17.46 19.40 20.97 22.86 23.01 23.42 23.15 20.27 15.81 11.93

30 12.74 15.52 17.36 19.71 21.58 23.70 23.76 23.80 22.93 19.62 15.18 11.54

20 11.73 14.62 17.09 20.08 22.49 25.06 25.00 24.46 22.77 18.75 14.08 10.66

15 11.15 14.09 16.85 20.12 22.79 25.45 25.45 24.60 22.50 18.15 13.41 10.14

10 10.54 13.51 16.53 20.07 22.98 25.78 25.78 24.61 22.09 17.45 12.66 9.573

Radiation data for different months on different slopes (MJ/m2)

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PASSIVE STRATEGIES

Direct gain method and Indirect gain method

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Conduction Convection

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ARCHITECTURE

ZoneArea

(m2)

Volume

(m3)Windows area (m2)

Zone

1 12 39 1.9

Zone

2 9 29.25 0.5

Zone

3 45 212.5 8.3 (6.2 South facing)

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HOUSE HEATING AND COOLING LOAD

Zone Heating load (W) Cooling load (W)

Zone 1 857 1689

Zone 2 470 674

Zone 3 3954 4783

• 3 Zones

Space heating and cooling systems run on

electricity produced by Photo Voltaic or

solar thermal energy absorbed by

collectors

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ELECTRICITY PRODUCTION

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LIGHTING

To Decrease Destructive Environmental Effects

Minimize Energy Consumption

Uses Fiber Optics And LEDs

Can transmit daylight to different zones of home and is joined to an illuminator to deliver light at night without any dazing

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ECONOMIC DISCUSSION

Aste (2012) - Economic feasibility of ZEB was discussed

High initial and maintenance cost, but zero running cost

Government subsidies

ADVANTAGES of ZEB

• Isolation for building owners from future energy price

increases

• Increased comfort due to more-uniform interior

temperatures

• Reduced Total cost of ownership due to improved energy

efficiency

• Reduced total net monthly cost of living

• Improved reliability

• Minimized extra cost

• Higher Resale Value 17

DISADVANTAGES of ZEB

• Initial Costs can be higher

• Lack of skills or experience to build ZEBs

• ZEB may not reduce the required power

plant capacity.

• ZEB by definition do not mandate a

minimum heating and cooling

performance level

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Indira Paryavaran Bhawan, New Delhi

Sun Carrier Omega Building, Bhopal

ZEBs IN INDIA

ZEB IN KERALA

Malankara Plantations Limited, Kottayam

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CONCLUSION

ZEBs are more practical

Implemented in field economically

Substantial reduction in

environmental issues

Eco-friendly buildings can be

achieved

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REFERENCES  [1] Aste.N, Shanti, Pless, Michael Deru (2012), ‘Net Zero Energy Buildings: Expense or Investment?’, Energy Procedia, Vol 14, pp 1331–1336 [2] Charon, R, R.S.Adhikari, C.Del Pero, M.Manfren (2008), ‘A review of design processes for low energy solar homes’, viewed on 02-03-2014 10:02 pm < https://www.nrcan.gc.ca/ > pp. 7–16. [3] Eshraghi. J, Nima.N, Saghi.S.Khosroshahi, Mehdi.A (2014), ‘A comprehensive feasibility study of applying solar energy to design a zero energy building for a typical home in Tehran’, Energy and  Buildings Vol 72, pp. 329-339 [4] GHG emission report n.d., viewed 02-03-2014 10:02 pm, <http://moef.nic.in/downloads/public-information/Report_INCCA.pdf.> [5] Saman, Y, (2013), ‘Towards zero energy homes down under’, Renewable Energy, Vol 49, pp. 211-215

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THANK YOU