Method for Setting Boundary Condition in Energy Management by using System Simulation

Part 1 -Method for Setting Primary Equipment Load in the Design and Operational Phases

Abstract

This study discusses the influence of primary equipment load setting on the estimated HVAC energy consumption in building energy management by using system simulation. In this study, two real existing government office buildings were chosen for the examination. Some procedures for the simulation modeling of air-side HVAC system in the design phase were examined to estimate the energy consumption of primary equipment. As a result, it was confirmed that there was not much difference in the estimated energy consumption between the case where all actual equipment specifications were modeled and the case where the air handling unit was modeled based on the floor number mean maximum heat load. This paper proposes the points of attention that need to be considered in the operational phase and recommends a methodology for the utilization of the measured operational data as simulation boundary conditions for estimating the energy consumption. These are widely applicable methods for the energy management of HVAC systems.