Commercial building cooling energy forecasting using proactive system identification: A whole building experiment study

2016 ◽  
Vol 22 (6) ◽  
pp. 674-691 ◽  
Author(s):  
Xiwang Li ◽  
Jin Wen ◽  
Ran Liu ◽  
Xiaohui Zhou
Keyword(s):  
System Identification ◽  
Commercial Building ◽  
Experiment Study ◽  
Energy Forecasting ◽  
Building Cooling

A Model-Based Predictive Control Approach for a Building Cooling System With Ice Storage

2013 ◽  
Author(s):  
Vahid R. Dehkordi ◽  
José A. Candanedo
Keyword(s):  
Predictive Control ◽  
Cooling System ◽  
Electric Energy ◽  
Problem Formulation ◽  
Cooling Power ◽  
Commercial Building ◽  
Control Approach ◽  
Prediction Horizon ◽  
Building Cooling ◽  
Operating Points

This paper presents a model predictive control (MPC) algorithm designed for the cooling system of a small commercial building under a time-dependent electricity price profile. The proposed approach includes a problem formulation in terms of cooling power, a variable-length prediction horizon and the consideration of the equipment duty cycle as a constraint in the optimization algorithm. The cooling system is equipped with an ice bank for thermal energy storage. A simple linear building thermal model is used to calculate the required amount of cooling power to maintain thermal comfort. The MPC algorithm uses this information to find the optimal operating points for the chiller and the ice bank to minimize the electric energy cost. The results of the MPC algorithm are compared against those of the reactive rule-based control algorithm currently in use in the building.

A Community Based High Risk Register for Hearing Loss

1982 ◽  
Vol 47 (4) ◽  
pp. 373-375 ◽  
Author(s):  
James L. Fitch ◽  
Thomas F. Williams ◽  
Josephine E. Etienne
Keyword(s):  
Hearing Loss ◽  
System Identification ◽  
High Risk ◽  
Language Learning ◽  
Education Program ◽  
Communication System ◽  
Auditory Signal ◽  
Early Age ◽  
Community Based ◽  
Children With Hearing Loss

The critical need to identify children with hearing loss and provide treatment at the earliest possible age has become increasingly apparent in recent years (Northern & Downs, 1978). Reduction of the auditory signal during the critical language-learning period can severely limit the child's potential for developing a complete, effective communication system. Identification and treatment of children having handicapping conditions at an early age has gained impetus through the Handicapped Children's Early Education Program (HCEEP) projects funded by the Bureau of Education for the Handicapped (BEH).

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