HVAC design method

HVAC design is a very important project in architecture, involving people's production, work, residence and entertainment. Correct HVAC design can meet people's requirements for comfort, health and safety, and improve the quality and efficiency of production and living environment.

The HVAC design method is mainly divided into the following steps:

1. Determine the ways and forms of heating, cooling and ventilation. According to the type, use, environment and climate conditions of the building, choose appropriate heating, cooling and ventilation methods, such as central air conditioning, floor heating and air duct system.

2. Calculate the heat load. Heat load calculation is the core work of HVAC design, which mainly determines the heating and cooling load by calculating the heat flow inside and outside the building. The heat load calculation needs to consider the building orientation, wall materials, doors and windows, roof, ground, internal equipment, personnel, lighting and other factors.

3. Design the air conditioning system. According to the calculation results of heat load, the parameters and equipment specifications of air conditioning system are determined, including air supply temperature, air supply speed, air volume, exhaust air volume, cooling water temperature and humidification amount.

4. Design the piping system. According to the parameters and equipment specifications of the air conditioning system, design an appropriate piping system, including length, diameter, pressure loss, air volume balance, etc.

5. Design the control system. According to the heat load calculation results and air conditioning system parameters, the appropriate control system is designed, including sensors, actuators, controllers, man-machine interfaces and so on.

6. Carry out construction and debugging. Carry out construction and debugging according to the design scheme to ensure that all equipment and pipelines operate normally and meet the design requirements.

In a word, HVAC design should fully consider the use environment and climate conditions of buildings in order to achieve economic, reliable, safe and comfortable effects.