1. Hi-TECH TUNNEL
4 features that are discussed in the model:
• Aerodynamic entrance.
• Power generation using air turbine.
• Automatic lightening of tunnel.
• Electrostatic precipitator (ESP).

2. CONVENTIONAL TUNNEL ENTRANCE
:

3. AERODYNAMIC ENTRANCE

4. POWER GENERATION USING AIR
TURBINE
o AIR TURBINE IS PLACED PARALLEL TO THE
MOTION OF TRAIN BESIDES THE TRACK.
o SPEEDING TRAIN ENTERING THE TUNNEL
FORCES THE AIR TO ROTATE TURBINE BLADES.

5. AUTOMATIC LIGHTING OF
TUNNEL

6. HOW WE CAN GET LIGHT
AUTOMATICALLY
There is a spring loaded key below the track.
Now, as the train enters in to the tunnel, the
weight of the train pushes the key and the
circuit gets completed which lights up the
tunnel.
As the train passes the tunnel the key

7. ELECTROSTATIC PRECIPITATOR
NEED OF ESP :-
In the case of long tunnel, problem of insufficient
visibility is sometimes caused by diesel engine. To keep
driver’s visibility,
electrostatic precipitator (ESP) has been installed in by-pass
tunnel of the main tunnel.
HOW IT WORKS :-
First, the smoke generated by engine is drawn in to the by
pass tunnel. As this smoke contains harmful particulates, ESP
purifies it and pass to auxiliary m/c room where further
purifying process is done and this sends the smoke to air
duct and finally a purified air is discharged through induced
draft fan

8. View of ESP By-pass tunnel