TY - GEN
T1 - Simulation analysis of longitudinal ventilation system with jet fan speed control for MPC strategy in a road tunnel
AU - Tan, Z.
AU - Huang, Z. Y.
AU - Wu, K.
AU - Xu, L. T.
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - To make the longitudinal ventilation systems more efficient and energy saving in road tunnels, it is being combined with typical model predictive control (MPC) strategies. Good application of such method is based on a comprehensive understanding of the system characteristics. Using CFD (Computational Fluid Dynamics) simulation, step response model is chosen to describe the dynamic behaviors of the system in a road tunnel with comprehensive health-related indexes which is difficult to obtain by field measurement. The results show that the "Fan Model", which characterizes the effect of jet speed on CO (carbon monoxide) concentration, is approximately bilinear within fan's economical working range and system settling time is longer when jet speed decreases than it increases. The "Tunnel tube model", which characterizes the effect of traffic intensity on CO concentration, links to traffic flow features, and has a similar settling time in normal operation and a traffic-speed-related delay time when maximum CO concentration is considered. This can provide guidance or index to control the tunnel ventilation system economically and useful data to implement MPC strategy in the system.
AB - To make the longitudinal ventilation systems more efficient and energy saving in road tunnels, it is being combined with typical model predictive control (MPC) strategies. Good application of such method is based on a comprehensive understanding of the system characteristics. Using CFD (Computational Fluid Dynamics) simulation, step response model is chosen to describe the dynamic behaviors of the system in a road tunnel with comprehensive health-related indexes which is difficult to obtain by field measurement. The results show that the "Fan Model", which characterizes the effect of jet speed on CO (carbon monoxide) concentration, is approximately bilinear within fan's economical working range and system settling time is longer when jet speed decreases than it increases. The "Tunnel tube model", which characterizes the effect of traffic intensity on CO concentration, links to traffic flow features, and has a similar settling time in normal operation and a traffic-speed-related delay time when maximum CO concentration is considered. This can provide guidance or index to control the tunnel ventilation system economically and useful data to implement MPC strategy in the system.
UR - http://www.scopus.com/inward/record.url?scp=84871205341&partnerID=8YFLogxK
U2 - 10.1109/ITSC.2012.6338809
DO - 10.1109/ITSC.2012.6338809
M3 - Conference contribution
AN - SCOPUS:84871205341
SN - 9781467330640
T3 - IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC
SP - 1471
EP - 1476
BT - 2012 15th International IEEE Conference on Intelligent Transportation Systems, ITSC 2012
T2 - 2012 15th International IEEE Conference on Intelligent Transportation Systems, ITSC 2012
Y2 - 16 September 2012 through 19 September 2012
ER -
