Heating and HVAC
HVAC or heating, ventilating, and air conditioning systems are built in order to provide the people living inside a space to breath and enjoy “conditioned” air, in the process allowing them to be fully comfortable and safe in the living space, be it at home or the office. When air is conditioned, it is clean, free from odor, and the temperature, movement, and humidity are within the normal levels.
There are quite a few ways people react or respond to the room they are in. One of the things that trigger a typical person’s response is air quality. This means that if there is poor air quality, the likely response would be discomfort. That’s why there’s the heating and cooling system – it works in such a way to give comfort by way of conditioning the air.
Heat and Temperature Factors
Heat is defined as a type of energy that goes by the form of molecules in constant movement or motion. When a thing becomes warmer, the molecular motion as well as the energy level will increase. Temperature in this regard is the one describing the level of energy or heat with reference to no heat. Therefore, heat is a positive value when compared to no heat.
Fahrenheit is the standard system of measuring temperature, but that’s only in the U.S. and other countries. Majority use the metric temperature measurement called the Celsius scale.
The Transfer of Heat
Heat in normal scenarios will flow naturally from a higher level of energy to a lower one. It means that heat will be traveling from a warmer material to a cold one. The quantity of heat possessed by a material is universally measured in BTUs or British thermal unit. As soon as there is a difference in temperature between two opposing materials, there will be transferring of heat. As a matter of fact, this difference is the force behind the concept of heat transfer. So when there is greater difference in temperature, there is also more heat transfer.
What are the Types of Heat Transfer?
Generally speaking, the main heat transfer types are conduction, radiation, and convection. Conduction is when your hand touches a cold material. When an electric heater glows red, it is an example of heat transfer by way of radiation.
Heat transfer by way of convection meanwhile happens when a material which is movable, i.e. air, water, steam will move heat from one particular location to another.
Basic System Components of an HVAC System
If you want to know more about your HVAC system and how it works, you first should understand and know its components or talk to your Allentown HVAC service technician. The following are the standard ones you will expect to see in your system:
- Fans for circulating supply and return air
- Air devices like supply and return air outlets and inlets
- Supply air ductwork
- Return air path or ductwork
- Outside air device like an opening, louver, or duct for the purpose of giving entry to outside
- Mixed air chamber for receiving return air
- Filter section for getting rid of dirt and dust particles
- Heat exchanger like hot water coil and refrigerant evaporator
- Auxiliary heating devices such as electric heating element and gas furnace
- Compressor for compressing refrigerant vapor
- Pump for circulating water in water-cooled condenser and water pumps
- Controls intended to stop, start, and regulate
HVAC or heating, ventilating, and air conditioning systems are built in order to provide the people living inside a space to breath and enjoy “conditioned” air, in the process allowing them to be fully comfortable and safe in the living space, be it at home or the office. When air is conditioned, it is clean, free from odor, and the temperature, movement, and humidity are within the normal levels.
There are quite a few ways people react or respond to the room they are in. One of the things that trigger a typical person’s response is air quality. This means that if there is poor air quality, the likely response would be discomfort. That’s why there’s the heating and cooling system – it works in such a way to give comfort by way of conditioning the air.
Heat and Temperature Factors
Heat is defined as a type of energy that goes by the form of molecules in constant movement or motion. When a thing becomes warmer, the molecular motion as well as the energy level will increase. Temperature in this regard is the one describing the level of energy or heat with reference to no heat. Therefore, heat is a positive value when compared to no heat.
Fahrenheit is the standard system of measuring temperature, but that’s only in the U.S. and other countries. Majority use the metric temperature measurement called the Celsius scale.
The Transfer of Heat
Heat in normal scenarios will flow naturally from a higher level of energy to a lower one. It means that heat will be traveling from a warmer material to a cold one. The quantity of heat possessed by a material is universally measured in BTUs or British thermal unit. As soon as there is a difference in temperature between two opposing materials, there will be transferring of heat. As a matter of fact, this difference is the force behind the concept of heat transfer. So when there is greater difference in temperature, there is also more heat transfer.
What are the Types of Heat Transfer?
Generally speaking, the main heat transfer types are conduction, radiation, and convection. Conduction is when your hand touches a cold material. When an electric heater glows red, it is an example of heat transfer by way of radiation.
Heat transfer by way of convection meanwhile happens when a material which is movable, i.e. air, water, steam will move heat from one particular location to another.
Basic System Components of an HVAC System
If you want to know more about your HVAC system and how it works, you first should understand and know its components or talk to your Allentown HVAC service technician. The following are the standard ones you will expect to see in your system:
- Fans for circulating supply and return air
- Air devices like supply and return air outlets and inlets
- Supply air ductwork
- Return air path or ductwork
- Outside air device like an opening, louver, or duct for the purpose of giving entry to outside
- Mixed air chamber for receiving return air
- Filter section for getting rid of dirt and dust particles
- Heat exchanger like hot water coil and refrigerant evaporator
- Auxiliary heating devices such as electric heating element and gas furnace
- Compressor for compressing refrigerant vapor
- Pump for circulating water in water-cooled condenser and water pumps
- Controls intended to stop, start, and regulate