ECBC based interior lighting design

TANMAY MONDALRoll No.-91/OPE/121012

ACKNOWLEDGEMENT

I would like to express my special

thanks of gratitude to my teacher and project guide Dr. Biswanath Roy as well as our HOD Prof. Kollol Bhattacharya who gave me the golden opportunity to do this wonderful project on the topic “ECBC based lighting design”, which also helped me to know about so many new things and I am really thankful to them.

WHAT IS ECBC? Energy Conservation Building

Code (ECBC). The Energy Conservation Act 2001 that was passed by the Indian Parliament, empowered the Central Government to prescribe an Energy Conservation Building Code (ECBC). ECBC was launched in 2007 on a voluntary basis by the Bureau of Energy Efficiency (BEE).

Purpose • ECBC set minimum energy

efficiency standards for design and construction.

• ECBC encourage energy efficient design or retrofit of buildings so that – It does not constrain the building function, comfort, health, or the productivity of the occupants

– Has appropriate regard for economic considerations

Scope The code is recommended to

buildings and building complexes that have a connected load of 500 kW or greater or a contract demand of 600 KVA or greater.

Generally buildings or complexes having conditional area of 1000 square meter or more will fall under this category.

Project objective

To measure that how much ECBC has

maintained in CU Tower-1 and if not then is to create a model following ECBC using the software DIAlux and AutoCAD.

Interior light power

Building area type LPD(W/m2)

Classroom 15.1

Conference 14.0

For reading area 12.9

laboratory 15.1

library 14.0

Meeting 14.0

Stairs-active 6.5

AutoCAD design of C.U tower-1

Design Steps

calculate the area.Find out required number of

luminaires and lamps needed using lumen formula for general indoor lighting.

Consider daylight factor.Create different light scene for

different times of a day for particular location.

Implementation of the light scene considering maintained average illuminance, overall uniformity, glare parameters and LPD.

Lumen formula for general indoor lighting

N=(Em *A)/(n*Ø*cou*MF)

N — number of luminairesEm — maintained average illuminanceA — area of the work planen — lamps per luminaireØ — Lumen per lampcou — coefficient of utilizationMF — maintenance factor

Values that I have collected so far:• For room number: 315 • Luminaire arrangement: 3×4• Lamps per luminaire: 2• Working plane at 0.73 meter• Calculated maintained average

illuminance: 250.8 lux• Calculated overall uniformity: 0.61

Values that I have collected so far:• For room number: 314 • Luminaire arrangement: 3×4• Lamps per luminaire: 2• Working plane at 0.77 meter• Calculated maintained average

illuminance: 239.15 lux• Calculated overall uniformity: 0.63

Need for energy efficient lighting Lighting accounts for 18 per cent

 of a typical household’s electricity bill. Cutting your lighting bill is one of the easiest ways to save energy and money.

Most households could reduce the amount of energy they use for lighting by 50 per cent or more by making smarter lighting choices and moving to more efficient technologies.

REFERENCES• Class notes of Biswanath Roy sir• Energy Conservation Building code 2007• http://www.teriin.org/ResUpdate/reep/

ch_4.pdf• http://www.megavolt.co.il/Tips_and_info/

lightingdes.html • http://www.energycodes.gov/sites/default/

files/documents/Lighting_Resource_Guide.pdf

• http://yourenergysavings.gov.au/energy/lighting/energy-efficient-lights

THANK YOU