HVAC / HVACR Field

Heating, ventilation, air conditioning and refrigeration

Market demands, the new legislation especially regulations about sustainability and energy efficiency besides people trend to stay more and more time indoor boosted research and studies in plants design with a particular attention to air cleaning and movement.

HVAC systems are based on integrated air conditioning systems that is many machines and technological devices linked and working together (air conditioners, boilers, air purifiers, fans and heat pumps) to create the best indoor comfort and air quality and a constant monitoring of the humidity level. These systems must maximize efficiency (energy efficiency included) and optimize consumption.

They are installed both in industrial and commercial sites and in residential contexts.

There are different kinds of HVAC systems depending on the number of machines/devices and on the kind of heat transfer fluid used to enhance thermal exchange among the different units of the systems.

Generally speaking, they consist of 4 parts:

a real machine such as a heat pump,
fans to regulate the quantity of moving air,
tubes that allow the fluid to flow from one component to another one
many sensors that let the entire system to always adapt to the real conditions of the environment ensuring the best possible comfort.

The main characteristics of the tubes used in these systems are: resistance to pressure and temperatures, endurance to losses, durability and chemical compatibility with the fluid. For this reason, the most frequently used materials are:

COPPER: known for its thermal conductivity. It is used especially for refrigerant gases;
STEEL, especially carbon and galvanized steel: strong and resistant materials;
PLASTIC such as PVC, PP etc that are now more and more required thanks to the lightweight and resistance to corrosion;
MULTILAYER tubes that is a combination of plastic and aluminum more suitable for heating and air conditioning.

The best materials selection is an important aspect to consider when designing a new system to ensure the maximum efficiency and safety of the system itself and it depends on many factors such as the working pressure, the temperature and the context in which the system will be installed.

No projects found