Executive Engineer(E)

Electrical Division II ,Chennai

PRESENTS

Section I

Common Area Lighting

Common areas identified for provision of Energy Efficient Lighting are

CorridorStaircaseToilets

Existing practice• Provision of no. of 40 / 36 W Box type Fluorescent fitting according to the size of the common area.

Proposed•Provision of 1 no. 1 x 11 W CFL fitting

•Low cost

•Low energy consumption

Pay back period for the use of CFL fitting instead of conventional 1 x 40/36 W box type FL fitting

CFL 1 x 11 W 1 x 36W box type

Lamp watts 11 36 Ballast watts -- 8 Total Wattage 11 44 Burning hours 12 12Consumption per day

0.13 kwh 0.53 kwh

Cost of EB bill @ Rs 6/- per unit per year

Rs 289.08 Rs 1156.32

Savings per year Rs 867/-Capital invest.for replacement

Rs 600/-

Pay back 8 months

A case study for the O/o the CGMT,

Anna Salai ,Chennai – 2

Replacement by CFL

Conventional 1 x 36W Fl lamp

Total no. of fitting to be replaced in G+ 4 Floors

75 Available fitting

80

Capital investment @ Rs 600/- per fitting

Rs 45000

Consumption per year in Kwh units

3614 15418

Total energy savings per year in Kwh

11804

Total cost savings per year

Rs 70825

Pay back period 8 months

A case study for the Tamilnadu

Telecom Complex ,Ethiraj Salai,Chennai - 6Replacement by CFL

Conventional 1 x 36W Fl lamp

Total no. of fitting to be replaced in G+ 7 Floors

57 Available fitting

80

Capital investment @ Rs 600/- per fitting

Rs 34200

Consumption per year in Kwh units

2746 15418

Total energy savings per year in Kwh

12672

Total cost savings per year

Rs 76032

Pay back period 5 months

Section II

Solar water heaters

UTILISE THE NATURESOLAR ENERGY CAN BE USED TO HEAT THE WATER

SOLAR WATER HEATERS

A solar water heater Collects solar energy through a collector Store water in an insulated tank Based on the collector system, solar water heaters can be of two typesNo.1 Solar water heaters based on Flat plate Collectors Solar radiation is absorbed by  flat plate collectors. It consist of an insulated outer metallic box covered on the top with glass sheet. Inside there are metallic absorber (selectively coated) sheets with built in channels or riser tubes to carry water. The absorber absorbs the solar radiation and transfers the heat to the flowing water.

Flat plate Collectors

Evacuated Tube Collectors

Collector is made of double layer borosilicate glass tubes evacuated for providing insulation.

The outer wall of the inner tube is coated with selective absorbing material.

This helps absorption of solar radiation and transfers the heat to the water  which flows through the inner tube.

Solar water heaters based on Evacuated Tube Collectors

Application Solar water heaters of 100-500 litres capacity are suited for Inspection quarters Larger systems can be used  in training centre hostel etc. Hot water at 60-70 C  can be obtained .

Agencies in DGS&D RC

1. Skylark Thermal Energy Systems, Pune

2. Tata BP Solar India Ltd.,New Delhi3. Solar Energisers P Ltd, Bangalore4. Kotak Urja P Ltd, Bangalore5. Enolar Systems, Bangalore6. Bipin Engineers P Ltd, Pune7. Sudharshan Saur shakti P ltd,

Aurangabad

A case study for the IQ @ TE,Katpadi Heater used in IQ each 2 KW capacity

4 ( One per IQ)

Heater is On from Morning 6.30AM to 8.30 AM and evening 7.00 PM to 9.00 PM I.e 4 Hrs

Power consumption 4 Nos.x 4 hrs x 2000 watts

32 units /day

Energy consumption cost @5.00 / unit

Rs 160/ day

Capital investment for 500 ltrs SWH I/c all accessories

RS 143500

pay back period = Capital cost/Energy consumption cost

RS 143500/160 =897 days

PAY BACK PERIOD 2 years and 6 months

Solar water heating system practically requires NIL maintenance and life period is approximately 15 Years whereas water heaters require periodical maintenance of replacement of elements etc. and life period is approximately 7 years ,which further reduces the payback period

Savings after the pay back period / year is

365 x 160 = Rs 58400/-

A case study for the officers’ Hostel @ RGM TTC,Chennai(Already implemented)

Heater in each room 1.5 KW capacity

25 ( One per room)

Heater is On from Morning 6.00AM to 8.30 AM and evening 6.30 PM to 8.00 PM I.e 4 Hrs

Power consumption 25 Nos.x 4 hrs x 1500 watts

150 units /day

Energy consumption cost @6.50 / unit

Rs 975/day

assuming that hostel occupied for 250 days in a year cost of energy

Rs 243750/year

Capital investment for 2 nos.500 ltrs SWH I/c all accessories

RS 152000

pay back period = Capital cost/Energy consumption cost

8 months

A case study for the officers’ Hostel @ RGM TTC,Chennai ( contd…)

• Above system was commissioned during July 2004

• Savings to the BSNL achieved till date

= 3 years – 8 months( pay back period)

= 2 years 4 months x 2.437 lakhs (savings per year)

= 5.7 lakhs

Section III

FIRE DRILL

Administrative Instructions An officer in the Rank of DE for major buildings or SDE for minor buildings shall be nominated as Fire safety officer.

An officer in the Rank of SDE shall be nominated as Deputy Fire safety officer.

Each Floor Two responsible officer shall be nominated as Floor Warden and Deputy Floor warden

Duties:-

Fire safety officerMaintenance of installation

Periodical tests and Inspection

Nominate and Training of warden and dy.warden

Liaison with Local fire brigade

Organize periodical Fire drills with the help of Local fire brigade.

Deputy Fire safety officer:-Perform all functions of FSO in his absence

Duties:-

Floor Warden / Deputy Floor wardenFamiliarize with the installation

Check for obstruction of Escape route and remove the obstacles.

Keep particulars of Physically handicapped in floor so that emergency evacuation of them is easy.

Ascertain the location of fire in the floor and take action to extinguish with available appliances.

Notify the FSO/Dy FSO immediately.

Fire safety Plan:- The GM in charge shall be responsible for Fire safety plans and nominating Fire safety officer/Dy Fire Safety officer

The Fire safety plan shall be drawn up in consultation with Local fire brigade.

The Fire safety plan shall include printing and displaying of safety instructions to the staff.

The Fire safety plan shall indicate action to be taken by different category of staff in case of fire for e.g warden/Dy warden,watchman,AC staff,Lift operator,Elec.mtce staff and other occupants of the building

Systematic records shall be maintained for various activities related to Fire fighting.

Fire drill conducted in O/o the CGMT,Chennai- 2 on 28/9/2007 by Electrical

wing

Conclusion

SELF MOTIVATION

Let us motivate ourselves to conserve energy by which BSNL can cut down expenditure on energy front. Let us follow the words of our great poet / economist THIRUVALLUVAR, which go as follows

means, “There is no problem in path of income being small, but expenditure should not be wide.”

It is possible when the mind turns towards ENERGY CONSERVATIONCONSERVATION and extend your

hands to SWITCH OFF.

We need Everybody’s co-operation to conserve energy which put ourselves in right path and our

beloved BSNL too.

Long live BSNL!!

THANK YOU

M.Sreenivas

Executive Engineer (E), Electrical Division-II, BSNL, Chennai