CFD simulation research on residential indoor air quality

Area of Science:

• Building Science
• Environmental Engineering
• Indoor Air Quality

Background:

• Modern reliance on air conditioning for comfort can negatively impact long-term health.
• Understanding indoor environmental dynamics is crucial for occupant well-being.

Purpose of the Study:

• To analyze indoor environmental fields (wind velocity, temperature, air age) in a bedroom with wall-hanging air conditioning during summer.
• To evaluate the effectiveness of air conditioning in providing thermal comfort and assess indoor air quality using CFD simulations.

Main Methods:

• Computational Fluid Dynamics (CFD) numerical simulation technology was employed.
• Analysis focused on wind velocity, temperature, and air age fields within a bedroom setting.

Main Results:

• The wall-hanging air conditioning system effectively managed indoor heat load and provided good thermal comfort.
• Air speed in occupied zones met summer comfort requirements, with minimal perceived airflow.
• Identified localized areas with insufficient ventilation and delayed removal of toxic gases, indicating air quality concerns.

Conclusions:

• While providing thermal comfort, wall-hanging air conditioning systems require enhancements to ensure adequate indoor air quality.
• CFD simulation offers significant advantages over traditional methods for analyzing indoor environments.
• Future applications of CFD hold promise for creating more comfortable and healthier living spaces.