Hello HVAC engineers,

this blog is specially for each and every HVAC engineer who just wants to know about how an HVAC system works, I will help you out in learning the basics of HVAC design and each and everything you would love to know about HVAC.

So lets start with what is HVAC 

REFRIGERATION CYCLE

H- HEATING

V- VENTILATION

A- AIR

C- CONDITIONING

The figure indicates the components of a basic refrigeration cycle. It consist of 4 basic components

1. Compressor
2. Condenser
3. Metering device
4. Evaporator

so lets start with what is this refrigeration cycle and its working. The cycle is a closed loop cycle with basically four components, each of the component has its basic principle of working and its property

Compressor: It takes refrigerant vapour in from the low pressure side of the circuit, and discharges it at a much higher pressure into the high pressure side of the circuit.The compressor is the heart of the system; it keeps the refrigerant flowing through the system at specific rates of flow, and at specific pressures.The rate of flow through the system will depend on the size of the unit,And the operating pressures will depend on the refrigerant being used and the desired evaporator temperature.the compressor basically is used to create the pressure difference low temperature low pressure refrigerant .

Condenser: the objective of the condenser is to discharge the heat of the refrigerant and to change the vapour refrigerant to liquid refrigerant. the temperature of high pressure high temperature liquid refrigerant from the compressor is higher than that of the atmosphere here the condenser cools the refrigerant and brings it to liquid state.