American International University-Bangladesh

Welcome To E-Shop Presentation

Home Appliances

Presented ByHossain Md Sazzat 13-24552-2 BSc. In EEEFaculty: A.H.M Shatil

Refrigerator (fridge)

A refrigerator (fridge) is a common household appliance that consists of a thermally insulated compartment and a heat pump (mechanical, electronic, or chemical) that transfers heat from the inside of the fridge to its external environment so that the inside of the fridge is cooled to a temperature below the ambient temperature of the room.

Basic Diagram of a refrigerator

washing Machine

important parts of the washing machine **Water inlet control valve **Water pump ** Tub** Agitator or rotating disc **Motor of the washing machine ** Timer ** Printed circuit board (PCB) **Drain pipe:

washing Machine Operation

Microwave Oven

INTERNAL STRUCTURE

MagnetronIt was with the invention of the cavity

magnetron that the waves of a small enough wavelength (microwaves) became possible. The magnetron was originally a crucial component in the development of short wavelength radar during WWII production of electromagnetic

It is high-powered microwave generator that worked at shorter wavelengths

Magnetron Tube The nucleus of the high-voltage system is the

magnetron tube . The magnetron is a diode-type electron tube which is used to produce the required 2450 MHz of microwave energy.

It is classed as a diode A magnetic field imposed on the space

between the anode (plate) and the cathode serves as the grid

AIR-CONDITION

TYPE OF AIR-CONDITIONING1) Window air-conditioning system2) Split air-conditioning system3) Centralized air-conditioning system4) Package air-conditioning system

Window Air-conditioning System

Split Air-Conditioning System

Packaged Air-Conditioning System

Centralized Air-Conditioning System

Basic air-conditioning cooling cycle

Compressor

Hot refrigerant vapor and high pressure

Condenser-Remove heat from condenser-Refrigerant vapor turn to liquid.

Hot refrigerant vapor and high pressure

Expansion Valve-Low the temperature and pressure of liquid-Control the flow rate in-to the evaporator.

Cold refrigerant vapor and low pressure

Evaporator-Liquid turns to vapor-Cold air flows out room

Cold refrigerant vapor and low pressure