Theoretical analysis of longitudinal ventilation system in a road tunnel for predictive control based on inertia effect

Zhen Tan, Zhiyi Huang, Ke Wu, Leiting Xu

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Speed control of longitudinal ventilation systems in road tunnels is being combined with typical model predictive control (MPC) strategies which may bring huge energy saving potential to the system. Theoretical analysis of the inertia effect is presented based on the energy equation of one dimensional incompressible unsteady flow, step response model is chosen to describe the dynamic behaviors of the system. The results show that the effect of jet speed change on CO concentration is nonlinear within fan's economical working range and the settling time of CO level has similar change trend with that of the flow field but is a little longer. The system settling time is longer when jet speed decreases than it increases and is related to the change extent of jet speed. The effect of traffic intensity on CO concentration can be regarded as linear disturbance to the system output. These results may provide useful indexes to control the tunnel ventilation system more economically and lay foundation for the application of predictive control strategy in the system.

Original languageEnglish
Title of host publicationAdvances in Civil Infrastructure Engineering
Pages665-669
Number of pages5
Edition1
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event1st International Conference on Advances in Civil Infrastructure Engineering, ICACIE 2012 - Changsha, China
Duration: 15 Dec 201216 Dec 2012

Publication series

NameAdvanced Materials Research
Number1
Volume639-640
ISSN (Print)1022-6680

Conference

Conference1st International Conference on Advances in Civil Infrastructure Engineering, ICACIE 2012
Country/TerritoryChina
CityChangsha
Period15/12/1216/12/12

Keywords

  • Inertia effect
  • Longitudinal ventilation
  • Predictive control
  • System response

ASJC Scopus subject areas

  • General Engineering

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