Case study of HVAC systems used in laboratories of a research and development center

Presents the HVAC system and its control scheme used in the chemical laboratory in this center. Testing and assessing the system, finds that the exhaust air rate from partial fume hoods is insufficient, the variable air volume terminal devices are not adjusted, and noise is higher in part zones. Analyses the causes resulting in these issues. According to the case study, summarizes the factors which should mainly be considered when selecting, commissioning, operating, maintaining the system. Emphasizes the importance of system commissioning on the normal operation of HVAC system in the laboratory.