Research on building energy management in HVAC control system for university library

Abstract

University libraries are usually high energy consuming buildings on campus and the operation efficiency of air conditioning system is still far from satisfactory. Combined with the building automation technology, heating, ventilation and air-conditioning (HVAC) control system for university library buildings has been proposed via fieldbus communication. The analysis of control system from electrical technology field is presented because traditional automatic control design cannot reflect the relationship between air-conditioning automatic control system and electronic devices in detail. Furthermore, since frozen station is one of the largest energy components in air conditioning system, the optimization of cooling water system in frozen station is carried out as an example to explain its electrical principle. The control program of cooling water system is compiled through a Delta WPL software and frequency converter. Building energy management of control system has been proven to reduce energy consumption on campus via the simulation of eQUEST software.