Technical Description of an Air Cooler (Unit four)

 Technical Description of an Air Cooler

An air cooler is a domestic appliance used for cooling the air of the room in summer season. It utilizes water vapour to cool the atmosphere of the room. The air inside the cooler is cooled by water circulation through the grass pads on its body and the cooled air of the cooler is driven out into the atmosphere by a cooler fan or an exhaust fan.

Different types of coolers made of steel sheet or plastic fibre are available in the market. These coolers may be divided into the following two categories:-

Room Cooler

A room cooler is made of steel sheet or plastic fibre. (People prefer plastic fibre now for safety reasons.) It looks like an upright box having a cooler fan or an exhaust fan on its front face and three screens on the remaining faces. The three screens have grass pads of khus grass or plastic fiber for soaking water. It has a storage tank for water at its bottom and a dispenser tank on its top. The dispenser tank may be closed by a lid or sometimes it does not have any such lid. The storage tank has a water pump at the bottom or a submersible water pump submerged in the water of the tank. The water pump pumps the water of the tank through a plastic tube on to the dispenser tank.

The dispenser tank has perforations placed just over the three screens. The water of dispenser tank falls on the three screens and trickles down into the storage tank after moistening the grass pads. The extra water of the dispenser tank may flow through another plastic tube into the storage. The soaked grass pads evaporate water vapor and cool down the air inside the cooler, which is driven into the atmosphere of the room by a cooler fan or an exhaust fan. The room cooler has wheels at the bottom, which make it portable to any room of the home.



Window Cooler

A window cooler is very much similar to a room cooler. The difference is that it is mounted on the window of the room and it provides better cooling effect than a room cooler because it gets dry air from the atmosphere.

It does not have wheels at the bottom. Besides this, it does not have a dispenser tank but a dispenser tube instead of it. The dispenser tube is placed over the three screens. It has perforations for dispensing the water on the screens.

An air cooler comes cheaper than an AC. However, it fails during rainy season due to high level of humidity.



***

Methodology of Technical Description

Technical Description of an Electric Fan

Next Chapter Unit Four Click Below

Technical Communication and Technical Definition

Technical Description B.Tech First Year Unit 4 

Location: Satna, Madhya Pradesh, India

Comments

Post a Comment

Popular posts from this blog

Uncle Podger Hangs a Picture by Jerome K. Jerome

Image
  Uncle Podger Hangs a Picture You never saw such a commotion up and down a house, in all your life, as when my Uncle Podger undertook to do a job. A picture would have come home from the frame-maker's, and be standing in the dining-room, waiting to be put up; and Aunt Podger would ask what was to be done with it, and Uncle Podger would say: "Oh, you leave that to me. Don't you, any of you, worry yourselves about that. I'll do all that." And then he would take off his coat, and begin. He would send the girl out for sixpenny worth of nails, and then one of the boys after her to tell her what size to get; and, from that, he would gradually work down, and start the whole house. "Now you go and get me my hammer, Will," he would shout; "and you bring me the rule, Tom; and I shall want the step-ladder, and I had better have a kitchen-chair, too; and, Jim! You run round to Mr. Goggles, and tell him, 'Pa's kind regards, and hopes his leg's
Read more

The Axe by R K Narayan

Image
  The Axe  by  R.K. Narayan An astrologer passing through the village foretold that Velan would live in a three-storeyed house surrounded by many acres of garden. At this everybody gathered round young Velan and made fun of him. For Koppal did not have a more ragged and godforsaken family than Velan’s. His father had mortgaged every bit of property he had, and worked, with his whole family, on other people’s lands in return for a few annas a week . . . A three-storeyed house for Velan indeed! . . . But the scoffers would have congratulated the astrologer if they had seen Velan about thirty or forty years later. He became the sole occupant of Kumar Baugh—that palatial house on the outskirts of Malgudi town. When he was eighteen Velan left home. His father slapped his face one day for coming late with the midday-meal, and he did that in the presence of others in the field. Velan put down the basket, glared at his father and left the place. He just walked out of the village, and walke
Read more

Preface to the Mahabharata: C. Rajagopalachari

Image
Preface to the Mahabharata C. Rajagopalachari  It is not an exaggeration to say that the persons and incidents portrayed in the great literature of a people influence national character no less potently than the actual heroes and events enshrined in its history. It may be claimed that the former play an even more important part in the formation of ideals, which give to character its impulse of growth. In the moving history of our land, from time immemorial great minds have been formed and nourished and touched to heroic deeds by the Ramayana and the Mahabharata. In most Indian homes, children formerly learnt these immortal stories as they learnt their mother tongue at the mother's knee. And the sweetness and sorrows of Sita and Draupadi, the heroic fortitude of Rama and Arjuna and the loving fidelity of Lakshmana and Hanuman became the stuff of their young philosophy of life. The growing complexity of life has changed the simple pattern of early home life. Still, there are few in o
Read more