|Air Conditioner Type||Centralized AC|
|Country of Origin||Made in India|
Today heating, air conditioning, and ventilation represent around 40% of the consumed energy. Achieving energy efficiency by reducing the energy consumption and still guaranteeing air quality and comfort is an ongoing research challenge. Nowadays, one of the central air conditioning systems that is gaining popularity in the market is the Direct Expansion Systems (DX). This type of system directly cools the air supplied to space/building in which it is positioned by using a refrigerant vapor compression and expansion cycle (also known as RVEC cycle). An RVEC cycle has the following components: an evaporator, a compressor, a condenser and a thermal expansion control device. The whole process is controlled by the system controller.
The term “direct” refers to the position that the evaporator has with respect to the air-side loop: as a matter of fact, between the air-stream and the evaporator, there is a direct contact. Instead, the definition “expansion” indicates the refrigerant into the evaporator. The refrigerant (which is liquid) flows through an expansion device prior to entering into the evaporator — this device is made up of a DX valve that reduces refrigerants’ pressure and temperature.
It is worth to mention that a ventilation fan is also necessary for a DX system: this is so because its function is to distribute the cool air and re-supply it.
Places where DX air conditioning system can be used: