CONSTRUCTION OF AUTOMATIC HAND DRYER

CONSTRUCTION OF AUTOMATIC HAND DRYER

CHAPTER ONE

    1. INTRODUCTION

Automatic hand dryers are electric devices found in public washroom that are used to dry          ahands. They may either operate with a button or automatically using a Light Independent Resistor (LDR).

Automatic hand dryers have been popular with industries for their apparent economics. According to manufacturers, automatic hand dryers can cost by as 99% for the expenditure of paper towels.

The automatic hand dryer is electric machines that require very little maintenance compared to paper towels, which must be replaced and it also removes the wastage of paper. Automatic hand dryers also claim to be better for the environment due to the reduction and liter and waste in comparison with paper towel, which cannot be recycled to compare the level of hygiene offered by paper towels.

Cost are also relative to the KWIH cost that the facility is charged by it provider in Nigeria, this will typically be around 10-12p, the only way to compare costs accurately is to work out the rated energy consumption and divide it by the number of dry the automatic hand dryer is capable of performing back to back in one hour, this will give the energy consumption per day. The world’s lowest energy automatic hand dryer uses just 1 watt-hour per dry and is rated at 0.24KW.

   

    1. STATEMENT OF PROBLEM

Before now when we make use of paper towel in drying of hands, it was not economical and thereby leads to liter and wastage of paper towel in the environment. It is not 100% efficient in killing of bacteria compare to automatic hand dryer which reduces the cost of paper towel and the excessive use of it. The modern type of automatic hand dryer keeps it clean from bacteria and it is 99.5% efficient.

         

    1. OBJECTIVE OF STUDY

The construction of automatic hand dryer is aimed at making to the understanding of the public that;

  1. Today’s automatic hand dryer are much faster than previous generation.
  2. To understand that new models of automatic hand dryer are faster, quicker and more efficient.
  3. To understand the environmental purity between automatic hand dryer and paper towel as hand drying methods.

 

    1. SCOPE OF STUDY

This study explains how an automatic hand dryer can be faster and more efficient in drying hands. Also explain it suitability and applications.

 

    1. LIMITATION OF STUDY

Thus, automatic hand dryer’s panel comes in various physical shape and sizes or designs. But due to high cost of materials and component involved. The construction was done at a medium size.

Automatic hand dryer is one-time investment which can serve it purpose for a long duration of time and the construction is easy and simple to establish and operate.

 

 

    1. DEFINITION OF TERMS

Economical: The energy applied in operation a hand dryer is less than 10% of the cost of paper towel.

Mains:            The main in material is referred to as transformer.

Vandal Proof: Something that cannot destroy other component.

Energize:       To turn on power to a device.

Durable Construction: These surface mounted dryers are constructed with one piece of molded lexan cover.

Soft High: This is whenever resistor is connected from positive to power supply.

ORDER NOW