TYPES OF FLUID SYSTEM :

HUMAN SYSTEM

ENVIRONMENT SYSTEM

INDUSTRIES SYSTEM

RESPIRATOTY SYSTEM

RESPIRATORY SYSTEM

The respiratory system or ventilatory system a biological system consisting of :

Specific organs Structures (used for the process of

respiration in an organism)

The respiratory system is involved in the intake and exchange of oxygen and carbon

dioxide between an organism and the

environment.

In air-breathing vertebrates like human respiration takes place in the respiratory organs called

lungs.

The passage of air into the lungs to supply the body with oxygen is known as inhalation

the passage of air out of the lungs to expel carbon dioxide is known as exhalation

this process is collectively called breathing or ventilation In humans and other mammals , the anatomical features of the

respiratory system include :

Trachea bronchi bronchioles lungs Diaphragm

Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion

between the gaseous external environment and the blood This exchange process occurs in the alveoli air sacs in the lungs

TORNADOES

BERNOULLIS PRINCIPLES

the speed of a moving fluid (liquid or gas) increases,

the pressure within the fluid decreases.

TORNADOES

Tornadoes and hurricanes blow the roofs off houses and

blow out windows :

Bernoullis Principle Fast moving air outside has very low pressure Faster the air , the lower the pressure Air inside has higher relative pressure

To prevent the tornadoes is by opening up the windows

Examples

paper goes up when you blow over it

fast air over the top still air on the bottom lower pressure on the top

Wind blowing over a peaked roof illustrates Bernoullis principle

COMPRESSION REFRIGERATION

SYSTEM

BOYLES LAW

It is the principle that , for relatively low pressures , the

absolute pressure of an ideal gas kept at constant

temperature varies inversely with the volume of gas

Main functional requirement Remove heat from an enclosed region

Refrigerant flows through the compressor

which raises the pressure of the refrigerant

the refrigerant flows through the condenser

where it condenses from vapor form to liquid form giving off heat in the process.

The heat given off is what makes the condenser "hot to the touch.

After the condenser, the refrigerant goes through the

expansion valve where it experiences a pressure drop

Finally, the refrigerant goes to the evaporator.

The refrigerant draws heat from the evaporator which causes the refrigerant to vaporize.

The evaporator draws heat from the region that is to be cooled.

The vaporized refrigerant goes back to the compressor to restart the cycle

Shematic of Compression Refrigeration System

Components of Compression Refrigeration In A Dorm Refrigerator