Rashni Parichha | Lighting Design | Services & equipment studio work

Project report on

LPD Calculation / lighting design for a residence in compliance with

ECBC guidelines

Rashni Parichha 001010201011

Architectural Illumination UG IV Semester II Department of Architecture Jadavpur University Kolkata

2

Energy use in building in indian context Energy services - Residential - Space cooling - 9% - Gadgets - 6% - Lighting - 6% - Cooking - 4% - Heating - 14% - Refrigeration - 4% - Space heating - 45% - Wet cleaning - 3% - Water heating - 18% - Others - 5%

Building type wise LPD

Ref : ECBC 2009 Table 7.1

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

3

Contents Objectives

...

4

Apparatus and accessories

...

4

Procedure

...

4

Floor plan

...

5

LPD calculation of Room 1 (Master Bedroom)

...

6

LPD calculation of Room 2 (Bedroom)

...

7

LPD calculation of Room 3 (Guest Bedroom)

...

8

LPD calculation of Room 4 (Common Toilet)

...

9

LPD calculation of Room 5 (Attached Toilet)

...

10

LPD calculation of Room 6 (Living room)

...

11

LPD calculation of Room 7 (Dining room)

...

12

LPD calculation of Room 8 (Drawing room)

...

13

LPD calculation of Room 9 (Kitchen)

...

14

Comparison of the obtained values with the standards

...

15

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

4

Objectives

To calculate the light power density ie. LPD of a residence . The existing condition is then compared with the recommended LPD as suggested by ECBC,2009

Apparatus and accessories Instrument name

Quantity

Manufacturer

Measuring tape

1 no.

Vinex

Calculator

1 no.

CASIO

Procedure All measurements were taken on single floor of my residence Measurement of floor area Compare the LPD of all the rooms with that given in ECBC Propose a energy efficient retrofitting

Note : LPD can be calculated in 2 ways : Space - function wise and building type wise.

In the former one the wattage of all the lamps in a single room are added and then divided by the area of the room to obtain the LPD of that particular room and then we compare it with the values provided in ECBC. In the latter one the sum of the wattage of all the lamps is divided by the total built up area of that floor and the result is compared with the value given in ECBC and should not be more than 7.5 W/m2 if the value exceeds 7.5W/m2 then retrofitting is necessary.

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

Plan of the concerned floor

5

Floor plan in 1:100

5 watt CFL 40 watt tube Chandelier with 40 watt incadescent bulb

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

6

LPD Calculation for Room 1 Room specification : Master Bedroom Length : 3.575m Breadth : 2.75m Area : 9.83 Sq.m Luminaire type : Linear fluroscent luminaire Lamp type : 40 watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1

Plan

of Room 1 (1:50)

Lamp luminaire specification : Bracket holder

5 watt CFL

Luminaire type : Bracket holder

40 watt tube

Lamp type : 5 watt fluoroscent lamps Ballast type : Electronic No of luminaires used : 1 No of lamps used : 2 Total no of lamps used : 3 LPD Calculation : Area of the room : 9.83 Total consumption = (Lamp wattage + Ballast Loss) = (40+4+5+4+5+4) W=62 W Hence , LPD of Room 1 = Total consumption/Area = 62/9.83 = 6.3 W/m2

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

7

LPD Calculation for Room 2 Room specification : Bedroom Length : 4.8m Breadth : 3.275m Area : 15.72 Sq.m Luminaire type : Linear fluoroscent luminaire Lamp type : 40watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Luminaire type : Bracket holder luminaire Lamp type : 5watt fluoroscent lamps Ballast type : Electronic No of luminaires used : 1 No of lamps used : 2 Total no of lamps used : 3 LPD Calculation : Area of the room : 15.72 Sq.m Total consumption

Plan

of Room 2 (1:50)

= (Lamp wattage + Ballast Loss) = (40+4+5+4+5+4)=62 5 watt CFL

Hence , LPD of Room 1

40 watt tube

= Total consumption/Area = 62/15.72 = 3.94

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

8

LPD Calculation for Room 3 Room specification : Guest Bedroom Length : 3.46m Breadth : 3.3m Area : 11.42 Sq.m Luminaire type : Linear fluoroscent luminaire Lamp type : 40 watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used :1 Luminaire type : Linear fluoroscent luminaire

Plan

Lamp type : 5 watt fluoroscent lamp

of Room 3 (1:50)

Ballast type : Electronic

5 watt CFL

No of luminaires used : 1

40 watt tube

No of lamps used :2 Total no of lamps used : 3 LPD Calculation : Area of the room : 11.42 Sq.m Total consumption = (Lamp wattage + Ballast Loss) = (40+4+5+4+5+4 W =62 W Hence , LPD of Room 1 = Total consumption/Area = 62/11.42 = 5.43 W/m2

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

9

LPD Calculation for Room 4 Room specification : Toilet Length : 2.75 m Breadth : 1.53 m Area : 4.20 Sq.m Luminaire type : Linear fluroscent luminaire Lamp type : 23 watt fluoroscent lamps - 0.6 m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Total no of lamps used : 1 LPD Calculation : Area of the room : 4.20 Sq.m Total consumption = (Lamp wattage + Ballast Loss) = (23+4)=27 W Hence , LPD of Room 1 = Total consumption/Area = 27/4.20 = 6.9 W/m2

5 watt CFL 40 watt tube Plan

A report on LPD

of Room 4 (1:50)

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

10

LPD Calculation for Room 5 Room specification : Toilet Length : 2.10 m Breadth : 1.63 m Area : 3.41 Sq.m Luminaire type : Linear fluoroscent luminaire Lamp type : 23 watt fluoroscent lamps - 0.6m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Total no of lamps used : 1 LPD Calculation : Area of the room : 3.41 Sq.m Total consumption = (Lamp wattage + Ballast Loss) = (23+4) W=27 W Hence , LPD of Room 1 = Total consumption/Area = 27/3.41= 8.54 W/m2

5 watt CFL 40 watt tube

Plan A report on LPD

of Room 5 (1:50)

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

11

LPD Calculation for Room 6 Room specification : Kitchen Length : 2.66 m Breadth : 2.1 m Area : 5.59 Sq.m Luminaire type : Linear fluoroscent luminaire Lamp type : 23 watt fluoroscent lamps - 0.6 m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Total no of lamps used : 1 LPD Calculation : Area of the room : 5.59 Sq.m Total consumption = (Lamp wattage + Ballast Loss) = (23+4) = 27 W Hence , LPD of Room 1 = Total consumption/Area = 27/5.59 = 5.18 W/m2

5 watt CFL 40 watt tube

Plan A report on LPD

of Room 6 (1:50)

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

12

LPD Calculation for Room 7 Room specification : Dining Hall Length : 3.3 m Breadth : 2.66 m Area : 8.78 Luminaire type : Linear fluoroscent luminaire Lamp type : 40 watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Luminaire type : Bracket holder Lamp type : 5 watt fluoroscent lamps Ballast type : Electronic No of luminaires used : 2 No of lamps used : 4 Total no of lamps used : 5 LPD Calculation : Area of the room : 8.78 Sq.m Total consumption = (Lamp wattage + Ballast Loss) =

Plan

of Room 7 (1:50)

(40+4+5+4+5+4+5+4+5+4) = 80 W 5 watt CFL

Hence , LPD of Room 1

40 watt tube

= Total consumption/Area = 80/8.78 = 9.11 W/m2 A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

13

LPD Calculation for Room 8 Room specification : Living room Length : 4.7 m Breadth : 2.3 m Area : 10.81 Sq.m Luminaire type : Linear fluoroscent luminaire Lamp type : 40 watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Luminaire type : Bracket holder Lamp type : 5 watt fluoroscent lamps

Plan

of Room 8 (1:50) 5 watt CFL

Ballast type : Electronic

40 watt tube

No of luminaires used : 2 No of lamps used : 4

Chandelier with 40 watt incadescent bulb

Luminaire type : Chandelier Lamp type : 40 watt incandescent bulb Ballast type : Electronic

LPD Calculation :

No of luminaires used : Bedroom

Area of the room : 10.81 Sq.m

No of lamps used : 1

Total consumption

Total no of lamps used : 1

= (Lamp wattage + Ballast Loss) = (40+4+5+4+5+4+5+4+5+4+40+4)=124 W Hence , LPD of Room 1 = Total consumption/Area = 124/10.81 =

A report on LPD

Rashni Parichha

001010201011

11.47 W/m2

Department of Architecture

Jadavpur University

14

LPD Calculation for Room 9 Room specification : Drawing room Length : 4.575 m Breadth : 3.525 m Area : 16.13 Sq.m Luminaire type : Linear fluroscent luminaire Lamp type : 40 watt fluoroscent tube - 1.2m Ballast type : Electronic No of luminaires used : 1 No of lamps used : 1 Luminaire type : Bracket holder Lamp type : 5 watt CFL Ballast type : Electronic No of luminaires used : 1 No of lamps used : 2

Plan

of Room 9 (1:50)

Total no of lamps used : 3

5 watt CFL

LPD Calculation :

40 watt tube

Area of the room : 16.13 Total consumption = (Lamp wattage + Ballast Loss) = (40+4+5+4+5+4)= 62 W Hence , LPD of Room 1 = Total consumption/Area = 62/16.13 = 3.85 W/m2

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

15

Comparison of LPD values with the standards Sl Room Area No. of No Name Sq.m lamps used

Ballast LPD

LPD ECBC

Remarks

1

Room 1 Bedroom

9.83

2+1

Electronic

6.3

11.8

Less than the std;2nos of 23 watt CFL should be added

2

Room 2 Bedroom

15.72

2+1

Electronic

3.94

11.8

Less than the std;3nos of 40 watt tubes should be added

3

Room 3 Bedroom

11.42

2+1

Electronic

5.43

11.8

Less than the std;3nos of 23 watt CFL should be added

4

Room 4 Toilet

4.2

1

Electronic

6.9

9.7

Less than the std;2nos of 5 watt CFL should be added

5

Room 5 Toilet

3.41

1

Electronic

8.54

9.7

6

Room 6 Kitchen

5.59

1

Electronic

5.18

12.9

Less than the std;4nos of 8 watt CFL should be added

7

Room 7 Dining

8.78

4+1

Electronic

9.11

17.2

Less than the std;3nos of 23 watt CFL should be added

8

Room 8 Living

10.81

4+1+1

Electronic

11.47

11.8

Almost equal

9

Room 9 Drawing

16.13

2+1

Electronic

3.85

8.6

Less than the std;3nos of 23 watt CFL should be added

W/m

2

W/m2

LPD of the entire floor 62+62+62+27+27+27+80+124+62(/ 150 3.53W/m2 which is lesser than the standrad value ie. 7.5W/m2

Almost equal

(

A report on LPD

Rashni Parichha

001010201011

Department of Architecture

Jadavpur University

Thank you