The document describes a ground dryer machine that is used to remove moisture from grounds like cricket pitches and football fields. It consists of a heating element and blower. The blower passes hot air from the heating element over the ground to evaporate moisture. It is portable so can be moved easily. A drying curve shows how moisture content reduces over time during drying, initially at a constant rate and then a falling rate as drying progresses. The dryer works by heating air with the element and blowing it over the ground using a tilting blower powered by a DC motor to distribute the air. It has advantages of being compact and portable but cannot remove large amounts of water and takes time.

1. FABRICATION OF GROUND DRYER
ABSTRACT:
 The machine, ground dryer, we introduce through our project is mainly useful for drying
grounds such as cricket ground, football ground and wherever moisture contents. Now a day,
rain fall occurs at the time of final matches such as football or cricket. At that time, the
ground dryer is used to remove the moisture contents in the ground.
 In our project, the ground dryer consists of two main parts such as heating element and
blower. The blower is used to passing the hot air to the ground, so that the moisture contents
in the ground was removed. The size of our project is also portable. So we can move the
ground dryer to any place very easily.
SCOPE OF THE PROJECT:
THEORY OF DRYING
 When a solid is dried experimentally, data are obtained relating moisture content to
time. When these data are plotted graphically, it results in what is known as a drying
curve. If the moisture content is plotted versus time, the first portion of the curve (B - C) will
indicate a constant rate of drying.
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2. A.C POWER
SUPPLY BLOWER
TILTING
MECHANISM
P.M.D.C.
MOTOR
D.C POWER
SUPPLY
HEATING
ELEMENT
The remainder of the curve will indicate a falling rate of drying (C - D). A
- B is that portion of the curve where internal heat is still causing
evaporation and ends when the surface temperature of the solid
reaches the wet bulb temperature (dew point) of the air.
WORKING OPERATION:
The simple Block Diagram of ground dryer is given bellow.
HOT AIR
 The A.C power supply is applied to the heating element. The heating element gets heated and
produces hot flames out from the heating element. The blower consists of A.C motor and
impeller (fans). The A.C motor coupled with the impeller (fan). The impeller consists of
more number of blades. It is fixed above the heating element, so that hot air forced to the
ground.
 The tilting mechanism is used to tilting the blower blades, so that the hot air distributed in all
required direction. The Permanent magnet D.C motor is used to tilting the blower blades
back and front. The regulated D.C power supply is given to the Permanent magnet D.C
motor.

3. ADVANTAGES
 Compact size and portable
 Easy to move from one place to another place
 Operating principle is simple.
 Non-skilled person also operate this machine
DISADVANTAGES
 It can’t remove the more water from the ground
 Large time required to remove the moisture from the ground
 Manually operated
 Power supply cables are required from main to the machine
APPLICATION
 To remove the moisture from the cricket ground.
 It is also used to remove the moisture from the football ground.
 It is also used to hot air production
 It is used as a room heater

4. WORKING DIAGRAM: