Paper Conference

ASHRAE & IBPSA-USA SimBuild 2016: Building Performance Modeling Conference


Office Zone HVAC Energy Calibration from Easily Available Sensor Data

Tomoshi Otsuki, Mitsunobu Yoshida
Toshiba Corporation

Abstract: Evaluation of HVAC performance in an office room by a virtual scenario is important when performing energysaving analysis or peak power analysis. When evaluating HVAC power by calibration, the framework in which a simulator is made and simulation parameters are optimized, it is indispensable to minimize the engineering cost while achieving high simulation speed and high accuracy. The aim of this paper is to propose a low-cost HVAC calibration framework by using a small number of easily available sensor data. First, the HVAC power model at an office room is approximated with a linear heat balance equation. When multiple temperature time series in the room can be used as input, the heat balance equation becomes redundant. Thus, we propose a regression model to solve the problem. According to the temperature-based HVAC calibration results at a test room, the proposed method achieves results that are comparable to those of conventional simulated annealing methods but more stable.
Pages: 415 - 422