Temperature Gradient Tunnel (TGT) Technology
Gradient temperature profile is created inside tunnel for studies of plant growth and productivity in different temperature zone inside tunnel.
Dimension of TGT is 15mt to 50 meter (L) X2.5 (W) X2mt. (H) constructs with MS pipe and covered with a polycarbonate sheet of more than 85 % transparency. Sophisticated air blowing/ heating facilities for achieving different gradient of 1 to 5 deg C from one end of the tunnel to another. A dedicated reliable control/ monitoring system are required for online monitoring of temperature & humidity with fixed sensors at 3mt interval.
STRUCTURAL DESIGN OF A TYPICAL TGT
• Polycarbonate sheet
• Pipe & fittings
• Mounting hardware, posts, etc.
• Misc supplies like temp, humidity sensors
• Air blower
• Control system
• Control panel
• Cable tray
• Control room
• IR (Infrared) Based Heating System
• Data logger, control and monitoring system