Impacts of Optimized Cold Hot Deck Reset Schedules on Dual Duct VAV Systems - Theory and Model Simulation

摘要

Optimal hot and cold deck reset schedulescan decrease simultaneous heating and coolingin VAV AHUs comparing with constant colddeck temperature operation. In this paper,optimization models are developed. The energyimpacts are simulated for a typical officebuilding in the hot and humid climate(Galveston, Texas).The simulation results show that theoptimized reset schedules can reduce the cost ofAHU energy consumption (cooling, heating andfan power) by 8% to 20% in normal VAVsystems when the minimum air flow rateincreased from 30% to 70% of the maximumflow.