Microwave Ovens Presented by: M.Nauman
Microwave Oven History <ul><li>Raytheon built the first microwave oven in 1947, the Radarange. It was almost 6 feet (1.8 m...
Modes of Heat Transfer <ul><li>CONDUCTION </li></ul><ul><li>Transfer of heat from one body to an other by physical contact...
Microwaves <ul><li>Microwaves are the form of “ELECTROMAGNATIC” radiation, they are the waves of electric and magnetic ene...
Characteristics of Microwaves <ul><li>Reflects from metals </li></ul><ul><li>Transmit (pass through) Glass & Plastic  </li...
How Microwaves Cook? <ul><li>Microwaves cause the millions of water molecules in food to vibrate and rub against each othe...
H2O Activity 1-H2O 2-Neg Charge  3-Rotat 4-Friction 5-Heated
MWO Parts <ul><li>Magnetron </li></ul><ul><li>Control Circuit </li></ul><ul><li>Waveguide </li></ul><ul><li>Cooking chambe...
Internal Structure
Microwave oven Features
Thank You
Upcoming SlideShare
Loading in …5
×

Mwo Working

1,012 views

Published on

how things work? ask me

Published in: Technology, Business
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,012
On SlideShare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
40
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Mwo Working

  1. 1. Microwave Ovens Presented by: M.Nauman
  2. 2. Microwave Oven History <ul><li>Raytheon built the first microwave oven in 1947, the Radarange. It was almost 6 feet (1.8 m) tall and weighed 750 pounds (340 kg). </li></ul>
  3. 3. Modes of Heat Transfer <ul><li>CONDUCTION </li></ul><ul><li>Transfer of heat from one body to an other by physical contact. </li></ul><ul><li>CONVECTION </li></ul><ul><li>Transfer of heat from one place to another by molecular movement in liquid and gases </li></ul><ul><li>Radiation </li></ul><ul><li>Transfer of heat from one place to another by electromagnetic waves </li></ul>
  4. 4. Microwaves <ul><li>Microwaves are the form of “ELECTROMAGNATIC” radiation, they are the waves of electric and magnetic energy moving together through space </li></ul>
  5. 5. Characteristics of Microwaves <ul><li>Reflects from metals </li></ul><ul><li>Transmit (pass through) Glass & Plastic </li></ul><ul><li>Absorbs in food </li></ul><ul><li>Frequency is 2450 MHZ </li></ul>
  6. 6. How Microwaves Cook? <ul><li>Microwaves cause the millions of water molecules in food to vibrate and rub against each other , this generate heat which cooks food </li></ul>
  7. 7. H2O Activity 1-H2O 2-Neg Charge 3-Rotat 4-Friction 5-Heated
  8. 8. MWO Parts <ul><li>Magnetron </li></ul><ul><li>Control Circuit </li></ul><ul><li>Waveguide </li></ul><ul><li>Cooking chamber </li></ul><ul><li>Plate revolver </li></ul><ul><li>Door </li></ul>
  9. 9. Internal Structure
  10. 10. Microwave oven Features
  11. 11. Thank You

×