modern air conditioning systems

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Medicaps InSTITUTE OF TECHNOLOGY & MANAGEMENT “ MODERN AIR CONDITIONING SYSTEMS” SUBMITTED TO: Prof. Amit Prajapati SUBMITTED By: Kartik jain Kunal dave

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Contents Introduction Types of Air conditioners Working of Air conditioner Room Air conditioner Centralized Air conditioner Heat pumps Evaporative coolers

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The first functional definition of air-conditioning was created in 1908 and is credited to G. B. Wilson. It is the definition that Willis Carrier, the “ father of air conditioning ” subscribed to: Maintain suitable humidity in all parts of a building Free the air from excessive humidity during certain seasons Supply a constant and adequate supply of ventilation Efficiently remove from the air micro-organisms, dust, soot, and other foreign bodies Efficiently cool room air during certain seasons Heat or help heat the rooms in winter An apparatus that is not cost-prohibitive in purchase or maintenance Introduction

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TYPES OF AIR CONDITIONERS Room air conditioners Central air conditioning SYSTEMS Heat pumps Evaporative coolers

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Working of Air Conditioner

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1. Windows AC D esigned to be fitted in window sills. Contains all the components namely the compressor, condenser, expansion valve or coil, evaporator and cooling coil enclosed in a single box. L ess effort for maintenance.   Advantages Single unit air conditioner Less effort needed for installation Costs lesser in comparison to other varieties ROOM AIR CONDITIONERS

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2. SPLIT AC These are kits of 2 units, one internal and another external. The outdoor unit on the other hand is installed out of the house. It contains the compressor and is linked to the internal unit via drain pipes and electric cables. This external unit throws out the warm air Advantages   Internal unit takes up less space for installation Usually more silent than window ACs Minimally affect your home decor Can be installed in room with no windows

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3. Cassette AC These space-saving ACs are shaped like cassettes D esigned to be installed on ceilings. The panel of these air conditioners is designed to blend with all kinds of home décor. Most cassette type air conditioners require no ducting. Advantages   Best at saving space Able to cool large areas where other ACs don ’ t reach out Blends with decor

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AC Parameters Window AC Split AC Cassette AC Suitable For Small rooms with a window sill Any room with or without a window Large indoor spaces Noise Relatively on the higher side Minimal noise Silent operation Capacity range 0.75 ton to 2 ton 0.8 to 2 ton 1 ton to 4 ton Advanced features Humidity control, dust filter Humidity control, dust filter, bacteria filter Humidity control, dust filter, bacteria filter Interference with home decor Slight possibility to interfere with window curtains and drapes Designer indoor units blend well with wall decor Barely interferes with interior decor Ease of installation Minimal effort required Indoor and outdoor units need some amount of effort for installation Needs specialised false ceiling Comparison between “ Window ” , "Split" and a "cassette" air conditioners  

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Centralized Air Contioner Central (ducted) air conditioning offers whole-house or large-commercial-space cooling, and often offers moderate multi-zone temperature control capability by the addition of air-louver-control boxes.

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An outdoor metal cabinet contains the condenser and compressor, and an indoor cabinet contains the evaporator Types of Central AC Split System

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supply fan air-cooled condenser compressors cooling coil (evaporator) refrigerant piping Split System Contd.

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The evaporator, condenser, and compressor are all located in one cabinet 2. Packaged Centralized A.C. Syste m

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Heat pumps A heat pump is a device that is able to transfer heat from one fluid at a lower temperature to another at a higher temperature.

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Evaporative Cooler In very dry climates, evaporative coolers, sometimes referred to as swamp coolers or desert coolers, are popular for improving coolness during hot weather. An evaporative cooler is a device that draws outside air through a wet pad, such as a large  sponge  soaked with water

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Working of Evaporative Cooler Evaporative cooling is a physical phenomenon in which  evaporation  of a  liquid , typically into surrounding air, cools an object or a liquid in contact with it.  Latent heat , the amount of heat that is needed to evaporate the liquid, is drawn from the air

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3.Centralized AC system broadly classified into? 4. What is COP of heat pump? 2. Types of room air conditioners are - 1. How many types of AC systems are there? a. 2 b. 3 c. 4 d. 5 a. 1(No type) b. 2 c. 3 d. 5 a. 1(No type) b. 2 c. 3 d. 5 Quiz

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Thank you

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