Conduction Heat Transfer

• Whatis Conduction Heat Transfer
• What is conduction?
• How does it work?
• Applications of conduction heat transfer
• Conclusion

What is Conduction Heat Transfer

The production and convection of heat is of major importance in the workings of all living organisms, whether they are plants, animals, or some other form of life. For example, the metabolism of the human body requires the transfer of heat through the metabolism of food and body tissues. Heat is often considered to be one of the primary tools of life as it is very useful in performing various vital functions. Each one of the molecules (or atoms) in a given substance has a specific heat of a particular type. For example, the temperature at the center of a red apple (and most other molecules) is much higher than the temperature of the center of the apple. The heat generated by these collisions in the apple has to be balanced by the heat lost from these molecules in the form of heat.

What is conduction?

Conduction is how energy is transferred in any object or system that involves the movement of electrons. This is particularly significant in electronics and thermostats. Concrete conduction involves the movement of heat as electrons between two conductive materials. A material with a high resistance can transfer heat in a more efficient way than a material with low resistance. A common example of high resistance and low resistance is glass or copper, a material used in building materials, pipes and wiring. Types of Conduction Based on current applications, we can break conduction down into two types: thermal and electrical. Conventional thermal conduction is achieved through a temperature gradient that causes heat to move between two materials.

How does it work?

An object becomes hot when it is heated and cold when it is cooled. What happens when an object transfers its internal energy to another object, which can either heat or cool it? Temperature differences facilitate the transfer of energy from one object to another.  For example, if you place a hot cup of coffee on the lip of a wine glass, it will have to travel inside the glass to reach the liquid. Once the liquid is hot, it transfers its internal energy to the metal around the rim, heating it. This process releases heat and makes the wine warmer, causing the liquid to flow faster from the middle of the glass to the lip, where the coffee resides. A similar thing happens when you place a cold glass bottle of beer in the hand of a fan.

Applications of conduction heat transfer

Thermal conduction, in its simplest form or at the basic level, transports heat from one location to another. The type of heat transfer medium and the temperature difference between the two ends of the transfer system govern the amount of heat that a conduction system can transport. Conduction allows the transfer of heat from a hotter environment to a cooler one. The primary method of conduction is by using contact. In the process of conduction, each particle and each the mechanical systems within the structure has its own temperature. Contact-type of heat transfer occurs between two bodies of different temperatures. Contact heat transfer is achieved through temperature differences of each bodies at the contact surface.

Conclusion

Continuous flow of metabolic gases into your body requires supply of pure, clean oxygen. Oxygen is critical to all functions within your body including but not limited to to respiratory, cardiovascular, and muscular systems. The heart’s ability to pump blood to the lungs is essential for maintaining a proper blood oxygen level. Inhibiting the body’s functions in terms of metabolism and other life-sustaining processes would occur without this continuous flow of oxygen into your body. The distribution of all kinds of nutrients in your body depend on the distribution of oxygen in your body and that is why you must maintain an optimum level of blood oxygen level.

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