Green Building Case Study

1. Rail Nirman Nilayam – The first Green Building in Indian Railways which has been accorded three star
rate by Hon’ble President of India
A view of Rail Nirman Nilayam, the first green Building on Indian Railways on 2nd
March, 2013.
Salient features
Ø Year of commencement:2009-10
Ø Year of completion:January 2012
Ø Sanctioned cost of Detailed Estimate:Rs.20.11 Crs. (Civil-Rs.13.16 Cr,Elec.-Rs.5.96 Cr
& S&T-Rs.0.99 Cr.)
Ø Expenditure:Rs.17.80 Cr (Approx)
Ø Building constructed with RCC framed structure of G+4 Floors with total plinth area of
4405.90 Sqm.
Aimed to achieve Green Building to
Ø Reduce energy consumption

2. Ø Reduce water consumption and efficient water management
Ø Efficient use of resources during construction
Ø Reduce construction waste
Ø Reduce destruction in ecology
Ø Rail Nirman Nilayam is the first Green Building in Indian Railways. This is also the first
Green Building for which certification fee was sponsored by Ministry of New and
Renewable Energy, Govt. of India.
Ø Building is designed with 40% glazing area and with 2 cut outs to give more lighting
thus reducing the conventional energy demand.Lighting is designed optimally. Energy
consumption index and thermal comfort are fully met. With the above measures the
power saving is to an extent of 20% is achieved compared to similar buildings.
Ø The daily water consumption by the building has been reduced by 50% using low flow
Sensor based Urinals, taps and dual flushing tanks
Ø Rain water harvesting is provided for the full quantity of rain water coming from the
roof top and circulation areas which is about 48 lakh litres per year against
consumption of about 25 lakh litres per year.
Ø Water usage during construction was minimised at site by using Ready mix concrete for
the entire project. Over flowing curing water has been collected in the lift pits and
reused.
Ø The waste water is treated to tertiary standards in the Sewage Treatment Plant which
works on FAB technology. The treated waste water is used for lawn and plant watering.
Ø Fire fighting system with Wet risers, Yard Hydrants, Electric fire pump along with a stand
by Diesel pump, sump and an exclusive Over Head tank are provided. Fire/Smoke detectors
with Fire alarms, a public addressing system with a Control room are provided in the building
Ø Low energy materials like Fly ash bricks, Ready mix concrete, low VOC paints, false
ceiling made with recycled materials like Gyp board and Mineral acoustic fibre are
used. Internal partitions are made with aluminium frames and particle boards. All the
materials used are locally available. Modular Workstations and file compactors are
provided for optimum utilisation of the floor space.
Use of Energy Efficient Equipments and their control
1.In Green Building entire light fittings are
luminous efficient (lumane/watt > 50) and
thus achieved bench mark of 10.8 watts/Sq.
Meters of lighting power density complying
ECBC 2007.

3. 2. Entire lighting is controlled either by Timer
or by Occupancy Sensor or Multi sensors for
Intelligent lighting system and harnessing
day light fully.
3. Stand alone solar street lighting system with
programmable day light sensing controller
for outdoor lighting have been used.
4. Use of centralized air cooling for improved thermal comfort in non air conditioned area.
5. Energy Efficient centralized air conditioning
through VRF (Variable refrigent flow)
technology with the facility of controlling
each indoor unit centrally as well as
individually
6.Gear less and machine room less lifts with energy efficient VVVF drive control has been
provided.
7. Use of Energy management system for comprehensive electrical parameters reporting,
comparative and performance analysis and remotely switching on / OFF facility of each
equipment.
Use of Renewable Source of Energy
37.5 KW Grid connected Solar Generating system was provided in the shadow free
area of 7,500 Sq. ft. on the roof of Rail Nirman Nilayam. It has been arranged in 168 arrays
in 8 strings. (Each string is of 4.8 KW consists of 21 arrays).
The daily average energy consumption of whole building is around 900 units, out of
which on an average 150 units is being generated from Solar Energy.Therefore, the
anticipated Annual Energy consumption (in kWh) is 3,28,500 units.Electricity generated from
on-site renewable resources (in kWh) is 54,750 units which work out 17% of total annual
energy consumption.
Solar modules arranged on roof top are giving double benefits.On one side, it is
attaining solar energy approximately 15% of total consumption to the building and on another
side giving shade to terrace thereby reducing the requirement of energy for cooling the top
fourth floor.
Each unit of energy generated from Solar Power is helping the environment by
reducing the Carbon Emission @ 0.0005925 metric tons per KWh.The entire electricity

4. generated from Solar Power in the building is expected to reduce Carbon Dioxide emission by
32.44 metric tons annually.
Conference Hall
This Conference hall is having state of the art facility to have Video Conference, Audio
Conference facility and Presentation System.
Cisco C- 20 Video conference will deliver the absolute quality of 1080p resolution to far
end.
DNP Supernova – 120” screen is the largest screen used in board rooms.
Nine cable cubby having HDMI Facility to display Presentation sitting anywhere in the
conference hall.
The centre table is embedded with 13 no Crown® PCC-170 is a surface mounted
supercardioid microphone, its highly directional pickup pattern will minimize
background noise and feedback.
Ceiling Mount camera will allow the participant to capture the image of any object placed
on the table and display in the 120” screen.
The big advantage of a Ceiling document camera in a video conferencing application is
that it is completely invisible to the audience.
Hitachi T-19W tablet is handy for writing digital notes, It lets you control the computer
display projected on the screen and write annotation and highlight the important
points.
5.2” AMX touch will allow the user to control all the equipment in the room
IP Surveillance
Ø RNN G+4 building covered with IP surveillance system.
Ø Each floor has been equipped with 2 Fixed Cameras to monitor the entire corridors.
Ø Outdoor PTZ Camera with 20X optical zoom is equipped to monitor the parking and
traffic flow at RNN premises.
Ø Fixed Cameras are of Panasonic make connected to Indigo Vision IP Encoder for
Digitalization.
Ø All cameras are capable of 4 SIF (704 X 480) resolution with 25 frames per second.

5. Ø Server and Client machines are of HP make, has ability to store minimum of 45 days
Video data.
Ø Server is configured in RAID 1 for redundant mirror disk.
Ø Motion based recording is configured to conserve the hard disk space.
Ø All Cameras are managed with Indigo Vision Control Center Video management
Software (100 Camera license).
Bio-Metric/RF Controlled Flap Barriers
Ø RNN Main entrance is equipped with 3 Flap barriers with 900 MM width for easy passage.
Ø Flap barriers are of SIVANADA make, aesthetically made with stain less steel and acrylic
sheet.
Ø Flap barriers are operated with Bio-metric or RF Smart cards.
Ø Smart cards are issued to staff with theirphoto Identityto enter and exit
Ø This same system is connected to server to maintain attendance reports.
Ø TimeTrack software is used for time & attendance.