Explanipedia

A novel design of a low-power intelligent sensor terminal for complex extreme operating environment Open

Ying Zhen Li, Hao Zeng, Junjun Liu, Changjun Wei, Qingchao Zhong , et al. · 2025

The traditional system design scheme is optimized by integrating actual application scenarios. For the terminal low-power application module, an appropriate terminal chip is selected. Based on the chip’s functionality and the application’s…

Overall smoke control performance using naturally ventilated shafts in tunnel fires with multiple fire sources Open

Kun He, Ying Zhen Li, Haukur Ingason, Xudong Cheng · 2025

This study investigates the overall smoke control performance using shafts in a naturally ventilated tunnel in the case of multiple fire sources. Detailed comparisons were also made with the corresponding single fire source scenarios. The …

Effects of Asymmetric Supplementary Airflow on the Thermal Smoke Plume Behavior and Ceiling Temperature in a Tunnel with Varying Lengths Open

Zihe Gao, Pengxiang Wang, Feng Wang, Mingge Liu, Ying Zhen Li , et al. · 2025

The Roles of Aging Signs in the Effect of Environmental Polycyclic Aromatic Hydrocarbon Exposure on Liver Fibrosis Risk: Results From Population‐Based Study and In Vitro Study Open

Jian Hou, Ziyuan Zhang, Xiaohuan Yang, Dandan Wei, Hai-Qing Zhang , et al. · 2025

Aging and polycyclic aromatic hydrocarbon (PAH) exposure are linked to chronic liver disease. However, the potential mechanisms and roles of aging in the effect of PAHs on liver fibrosis are unclear. A subpopulation ( n = 2537) was derived…

Unpacking the Gamified Consumer Journey: Developing and Validating a Scale for the Quasi-Gaming Experience Open

Yanhe Li, Ying Zhen Li, Kwan‐Liu Ma · 2025

Research on the Path of Enhancing the Innovation Ability of Professional Degree Postgraduates Driven by Industry- Education Integration in the Context of Digitalization Open

Dong Yang, Ying Zhen Li · 2025

The effect of institutional investors’ site visits on corporate greenwashing behavior Open

Ying Zhen Li, Jun Xiao · 2024

Influence of upstream blockage on smoke control in tunnel fires Open

Ying Zhen Li, Haukur Ingason · 2024

Smoke control in a longitudinally ventilated tunnel with various blockage conditions was investigated experimentally. A total of 28 tests were conducted with a focus on single blockage with a short distance from the fire source, although c…

Performance of various water-based fire suppression systems in tunnels with longitudinal ventilation Open

Ying Zhen Li, Haukur Ingason, Magnus Arvidson, Michael Försth · 2024

Experimental study on the maximum ceiling gas temperature driven by double fires in a tunnel with natural ventilation Open

Kun He, Ying Zhen Li, Haukur Ingason, Long Shi, Xudong Cheng · 2023

The maximum gas temperature below the ceiling is an important parameter for tunnel safety. The present study analyzed the characteristics of the maximum excess ceiling gas temperature driven by double fire sources in a naturally ventilated…

Numerical study on thermally driven smoke flow characteristics in long tunnels under natural ventilation Open

Qinghua Guo, Ying Zhen Li, Haukur Ingason, Zhiguo Yan, Hehua Zhu · 2023

The paper focuses on the flow structures and mass flow rates of thermally driven smoke flows induced by fires in long transportation tunnels under natural ventilation. The important influencing factors including heat release rate (HRR), tu…

Heat Transfer Analysis of the Tantalum-plated Barrel Open

S Y Chen, L M Chen, Jiawei Fu, Ying Zhen Li · 2023

Accurate calculation of temperature distribution in the barrel tube is of great importance for the barrel design. In this paper, a numerical heat conduction model of PCrNi3MoVA tube plated with tantalum coating at the inner surface is esta…

Fire spread among multiple vehicles in tunnels using longitudinal ventilation Open

Kun He, Ying Zhen Li, Haukur Ingason, Xudong Cheng · 2023

The characteristics of fire spread among multiple vehicles in tunnels using longitudinal ventilation were investigated by analyzing the experimental data from a series of fire tests in a 1:15 scale tunnel. Further, a simple theoretical mod…

Experimental Study on the Maximum Ceiling Gas Temperature Driven by Double Fires in a Tunnel with Natural Ventilation Open

Kun He, Ying Zhen Li, Haukur Ingason, Long Shi, Xudong Cheng · 2023

Fire tests with automatic sprinklers in an intermediate scale tunnel Open

Haukur Ingason, Ying Zhen Li, Magnus Arvidson, Lei Jiang · 2022

A series of 1:3 intermediate scale tunnel fire tests was performed to investigate the performance of a fully automatic sprinkler system in a road tunnel. The experiments were carried in a container tunnel with scaled geometry, using wood p…

Study on spilled liquid from a continuous leakage in sloped tunnels Open

Qinghua Guo, Ying Zhen Li, Haukur Ingason, Zhiguo Yan, Hehua Zhu · 2021

The study focuses on the behaviors of spilled liquid from a continuously leaked tank in sloped tunnels. Spillage width and area, which impact the potential heat release rates in case of fire, are investigated under different tunnel slopes …

Theoretical studies on buoyancy-driven ceiling jets of tunnel fires with natural ventilation Open

Qinghua Guo, Ying Zhen Li, Haukur Ingason, Zhiguo Yan, Hehua Zhu · 2020

The paper presents a theoretical study on the ceiling jets induced by small fires in tunnels. The ceiling jet thickness, temperature rise and velocity are analyzed theoretically with Non-Boussinesq approximation. The study focuses on the r…

Parametric study of design fires for tunnels with water-based fire suppression systems Open

Ying Zhen Li, Haukur Ingason · 2020

A series of tests was carried out to investigate the influence of different parameters on design fires for tunnels with water-based fire suppression systems in a 1:4 scale tunnel. The key parameters tested included fuel load covers, activa…

Influence of tunnel slope on smoke control Open

Ying Zhen Li, Haukur Ingason, Lei Jiang · 2018

The critical velocity and backlayering length in sloped tunnels are investigated by numerical simulations using FDS. Simulation in two full-scale tunnels, with negative slopes ranging up to -18 % and heat release rates from 5 to 100 MW wer…

Model scale tunnel fire tests on maximum ceiling gas temperature for structural protection Open

Ying Zhen Li, Haukur Ingason · 2018

Model scale tests with varying materials as tunnel structure were carried out to further study the theoretical model of maximum gas temperature for structural protection. New correlation for calculation of air mass flow rate is introduced.…

Influence of fire suppression on combustion products in tunnel fires Open

Ying Zhen Li, Haukur Ingason · 2017

Verification, validation and evaluation of FireFOAM as a tool for performance design Open

Ying Zhen Li, Chen Huang, Johan Anderson, Robert Svensson, Haukur Ingason , et al. · 2017

The open source CFD code FireFOAM has been verified and validated against analytical solution and real fire tests. The verification showed that FireFOAM solves the three modes of heat transfer appropriately. The validation against real fir…

Analysis of Muskö tunnel fire flows with automatic sprinkler activation Open

Ying Zhen Li, Haukur Ingason · 2017

The focus of the present study is analyzing the best position of a sprinkler nozzle in a tunnel cross-section in the Muskö tunnel, south of Stockholm, Sweden. Activation of the sprinklers installed along the centerline and along the sidewa…

Influence of ventilation on tunnel fires with and without water-based suppression systems Open

Ying Zhen Li, Haukur Ingason · 2016

Large scale fire tests with different types of fixed fire fighting systems in Runehamar tunnel Open

Haukur Ingason, Ying Zhen Li, Magnus Bobert · 2016

The report presents the main results of the six large-scale tests with different types of fixed firefighting system (FFFS) that were carried out in the Runehamar tunnel in June 2016. It describes the background to the tests and the perform…

New models for calculating maximum gas temperatures in large tunnel fires Open

Ying Zhen Li, Haukur Ingason · 2016

The work presented in this report focuses on estimating maximum gas temperatures at ceiling level during large tunnel fires. Gas temperature is an important parameter to consider when designing the fire resistance of a tunnel structure. Ea…

Development of a test method for fire detection in road tunnels Open

Haukur Ingason, Glenn Appel, Jonatan Gehandler, Ying Zhen Li, Hans Nyman , et al. · 2015

CFD modelling of pressure rise in a room fire Open

Ying Zhen Li · 2015

CFD modelling of pressure rise in a room fire Pressure rise due to a fire in a room can cause severe problems with smoke spread to other spaces. A simple CFD model, Pressure Rise Simulator (PRS), is developed to simulate the fire-induced p…

Influence of fire suppression on combustion products in tunnel fires Open

Ying Zhen Li, Haukur Ingason, Lotta Vylund, Glenn Appel · 2015

CFD modelling of fire development in metro carriages under different ventilation conditions Open

Ying Zhen Li · 2015

CFD modelling of fire development in metro carriages under different ventilation conditions

Ying Zhen Li YOU? Author Swipe