
Author:  Lee, K.H. and Braun, J.E.  Year:  2007  Abstract:  This paper presents simple approaches for estimating building zone temperature setpoint variations that minimize peak cooling demand during critical demand periods. Three different methods were developed that are termed the semianalytical (SA), exponential setpoint equationbased semianalytical (ESA), and load weightedaveraging (WA) methods. The three methods are different in terms of requirements for input data. The SA and ESA methods employ simple inverse building models trained with shortterm data and use analytical solutions from the models to determine setpoint trajectories. The WA method is a databased method in which an optimal weighing factor is found that minimizes a weightedaverage of two loads and then used for WA of two initial bound setpoint trajectories. The weightedaveraged setpoint trajectory is adjusted to improve the load shape and can be updated on a daily basis. A companion paper [Lee KH, Braun JE. Evaluation of methods for determining demandlimiting setpoint trajectories in commercial buildings using shortterm measurements. Building and Environment 2007, in press] presents evaluations of the peak load reduction potential associated with implementation of these methods
 Document Type:  Technical paper  Source:  DOE  LBL 
