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Browsing University of Hertfordshire by Author "Day, Rodney"
Now showing items 1-14 of 14
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Advanced thermal management system driven by phase change materials for power lithium-ion batteries: A review
Zhang, Jiangyun; Shao, Dan; Jiang, Liqin; Zhang, Guoqing; Wu, Hongwei; Day, Rodney; Jiang, Wenzhao (2022-05-01)Power lithium-ion batteries are widely utilized in electric vehicles (EVs) and hybrid electric vehicles (HEVs) for their high energy densities and long service-life. However, thermal safety problems mainly resulting from ... -
Air Quality Control in Mine Refuge Chamber with Ventilation through Pressure Air Pipeline
Zhang, Zujing; Wu, Hongwei; Wang, Kequan; Day, Rodney; Yuan, Yanping (2019-12-20)A combined experimental and numerical study was performed to improve the performance of the ventilation system in a mine refuge chamber (MRC). In the experiment, CO2 cylinders and dispersion pipes were used to simulate the ... -
A data driven deep neural network model for predicting boiling heat transfer in helical coils under high gravity
Liang, Xing; Xie, Yongqi; Day, Rodney; Meng, Xianhai; Wu, Hongwei (2021-02-01)In this article, a deep artificial neural network (ANN) model has been proposed to predict the boiling heat transfer in helical coils under high gravity conditions, which is compared with experimental data. A test rig is ... -
Design of a high efficiency cyclone for collection of rare and low concentration airborne pathogens
Baxter, Richard; Johnston, Ian; Kaye, Richard; Munro, Ian; Tracey, Mark; Day, Rodney; McCluskey, Daniel (2017-03-16)Recent serious outbreaks of pathogens such as Chalara Fraxinea, (Ash Dieback) demonstrate the vulnerability of UK’s forests, woods, and trees. Early detection of threats is critical in the fight against such tree pests and ... -
Development of an automated smart trap for wheat pathogens
Kaye, Richard; Johnston, Ian; Baxter, Richard; Munro, Ian; Tracey, Mark; Day, Rodney; McCluskey, Daniel (2017-03-16)National surveys show fungicide use on wheat continues to increase despite fluctuations in disease pressure, reaching a 30 year high in 2012 (Defra). Septoria tritici is the most significant foliar disease in UK wheat ... -
Energy Separation for Ranque-Hilsch Vortex Tube: A short review
Hu, Zhuohuan; Li, Rui; Yang, Xin; Yang, Mo; Day, Rodney; Wu, Hongwei (2020-10-01)In this article, the development of the energy separation for the vortex tube has been briefly reviewed. This review mainly focuses on three aspects, they are the energy separation principle, the design criteria of vortex ... -
Experimental investigation on environmental control of a 50-person mine refuge chamber
Zhang, Zujing; Jin, Ting; Wu, Hongwei; Day, Rodney; Gao, Xiangkui; Wang, Kequan; Mao, Ruiyong (2022-02-15)Air quality and thermal environment of mine refuge chamber (MRC) are very important to determine the physical safety of refugees. Accurately assessing the environmental load and taking reasonable measures are critical to ... -
Low-Speed Aerodynamic Analysis Using Four Different Turbulent Models of Solver of a Wind Turbine Shroud
Ngouani Siewe, Micky; CHEN, Yong Kang; Day, Rodney; David-West, Opukuro (Springer Nature, 2021-04-30)This study presents the effect of four different turbulent models of solver on the aerodynamic analysis of a shroud at wind speed below 6 m/s. The converting shroud uses a combination of a cylindrical case and an inverted ... -
Powering lights with piezoelectric energy harvesting floors
Puscasu, Onoriu; Counsell, Nathan; Herfatmanesh, Mohammad; Peace, Richard; Patsavellas, John; Day, Rodney (2018-05-09)The present work introduces a new technology for converting energy from steps into electricity. It starts with a study of the mechanical energy available from steps in a busy corridor. The subsequent development efforts ... -
Prediction of the release process of the nitrogen-extinguishant binary mixture considering surface tension
Liu, Siyuan; Xie, Yongqi; Chen, Mengdong; Zhu, Jianqin; Day, Rodney; Wu, Hongwei; Yu, Jianzu (2020-07-21)Nitrogen used for pressurization in the extinguisher can be partially dissolved in the fire extinguishing agent. Consequently, the evolution of the dissolved nitrogen has a significant effect on the release behavior of the ... -
Protein droplet actuation on superhydrophobic surfaces: A new approach toward anti-biofouling electrowetting systems
Abdul Latip, Eli Nadia; Coudron, Loic; McDonnell, M.B.; Johnston, Ian; McCluskey, Daniel; Day, Rodney; Tracey, Mark (2017-10-25)Among Lab-on-a-chip techniques, Digital microfluidics (DMF), allowing the precise actuation of discrete droplets, is a highly promising, flexible, biochemical assay platform for biomedical and bio-detection applications. ... -
Temperature oscillation of a dual compensation chamber loop heat pipe under acceleration conditions
Lv, Xiaochen; Xie, Yongqi; Zhang, Hongxing; Xu, Yanmeng; Wu, Hongwei; Day, Rodney; Ren, Jianwei (2021-11-01)Loop heat pipe has a wide application in the fields of airborne electronics cooling and thermal management. However, the pertinent temperature oscillation of the loop heat pipe could lead to adverse effects on the electronics. ... -
Thermal Performance Analysis of an Underground Closed Chamber with Human Body Heat Sources under Natural Convection
Zhang, Zujing; Day, Rodney; Wang, Kequan; Wu, Hongwei; Yuan, Yanping (2018-12-25)In this article, a combined experimental and numerical study has been performed to investigate the thermal performance of a mine refuge chamber (MRC) under natural convection. In the current study, a 20-hour heating ... -
Thermal performance of a mine refuge chamber with human body heat sources under ventilation
Zhang, Zujing; Wu, Hongwei; Wang, Kequan; Day, Rodney; Yuan, Yanping (2019-11-05)This paper investigated the dynamic coupling heat transfer characteristics of rock and air in a Mine Refuge Chamber (MRC) under ventilation. In the current work, a comprehensive fifty-person MRC model combining human-body ...