Abstract: As one of the main energy consumption of central laboratory in petrochemical plant, the energy consumption of ventilation and air conditioning may account for more than 50% of the total energy consumption of buildings. This paper introduces the HVAC energy consumption of central laboratory in petrochemical plant and the energy-saving measures to be taken in the design of HVAC system in central laboratory, including setting up VAV system, optimizing the design of cold and heat sources, adding heat recovery system and optimizing the comfort design. The selection of various energy-saving measures is discussed based on practical engineering cases. In actual engineering projects, HVAC engineers should comprehensively consider the feasibility, economy, energy-saving effect and other factors in combination with the actual situation of projects to select reasonable energy-saving measures.

Key words: central laboratory, ventilating and air conditioning system, selection of energy saving measures