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Browsing University of Hertfordshire by Author "Energy and Sustainable Design Research Group"
Now showing items 1-20 of 239
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Acoustic-Based Machine Condition Monitoring – Methods and Challenges
Jombo, Gbanaibolou; Zhang, Yu (2023-01-01)The traditional means of monitoring the health of industrial systems involves the use of vibration and performance monitoring techniques amongst others. In these approaches, contact-type sensors, such as accelerometer, ... -
Adaptive Multiscale Weighted Permutation Entropy for Rolling Bearing Fault Diagnosis
Huo, Zhiqiang; Zhang, Yu; Jombo, Gbanaibolou; Shu, Lei (2020-05-06)Bearing vibration signals contain non-linear and non-stationary features due to instantaneous variations in the operation of rotating machinery. It is important to characterize and analyze the complexity change of the ... -
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 ... -
Aircraft Ice Accretion Prediction Using Neural Network and Wavelet Packet Transform
Chang, S; Leng, M; Wu, Hongwei; Thompson, J.M. (2016-01-04)Purpose – The purpose of this paper is to present a new technique based on the combination of wavelet packet transform (WPT) and artificial neural networks (ANNs) for predicting the ice accretion on the surface of an ... -
Analysis and Simulation of Continuous Food Frying Processes
Wu, Hongwei; Tassou, S.A.; Karayiannis, T.G.; Jouhara, H (2013-05-02)Frying is a very energy intensive process as it invariably involves the evaporation of significant quantities of water from the food product. The process is also complex to control due to the variability of raw materials, ... -
Analysis of Standby Power in an Enclosed High-Speed Flywheel Energy Storage System Using the CFD-ANOVA Approach
Eltaweel, Mahmoud; Herfatmanesh, Mohammad Reza (2023-09-29)During urban driving, a significant amount of energy is lost due to continuous braking, which can be recovered and stored. The flywheel energy storage system (FESS) can efficiently recover and store the vehicle's kinetic ... -
Analysis of the influence of outdoor surface heat flux on the inlet water and the exhaust air temperature of the wetting pad of a direct evaporative cooling system
M.C., Ndukwu; Imagwuike Ibeh, Mathew; Edem Akpan, Godwin; Elijah, Ugwu; Akuwueke, Leonard; Oriaku, Linus; Ihediwa, Victor.E.; F. I., Abam; Wu, Hongwei; Kalu, C.A.; Edet Ben, Augustine; Mbanasor, Jude (2023-03-01)The study investigates the interconnectivity between the inlet water temperature, wind flow rate, and storage water heat flux with the performance of biomass wetting pads in direct evaporative cooling under the external ... -
Analytical Modelling of Electromagnetic Bulging of Thin Metallic Tubes
Hosseini, Seyed Vahid; Hatami, Sara; Darvizeh, Abolfazl; Chizari, Mahmoud (Springer Nature, 2021-02-19)The main objective of this paper is to develop an analytical method based on the energy balance equation to model the plastic deformation of thin metallic tubes in a high velocity forming process under axisymmetric conditions. ... -
Annual performance evaluation of a hybrid concentrated solar–micro gas turbine based on off-design simulation
Hosseini, Vahid; CHEN, Yong Kang; Madani, Hossein; Chizari, Mahmoud (2024-05-30)As the adoption of solar hybrid systems continues to rise due to their potential to compensate for the fluctuation of solar irradiation, it becomes imperative to accurately evaluate their performance, considering the ... -
Applications of ultrasonic testing and machine learning methods to predict the static & fatigue behavior of spot-welded joints
Amiri, N.; Farrahi, G. H.; Reza Kashyzadeh, K.; Chizari, M. (2020-04)Ultrasonic Testing (UT) is one of the well-known Non-Destructive Techniques (NDT) of spot-weld inspection in the advanced industries, especially in automotive industry. However, the relationship between the UT results and ... -
Applying machine learning techniques to predict laminar burning velocity for ammonia/hydrogen/air mixtures
Ustun, Cihat Emre; Herfatmanesh, Mohammad Reza; Medina, Agustin Valera; Paykani, Amin (2023-06-16)Ammonia utilisation in internal combustion engines has attracted wide interest due to the current trend toward decarbonisation, as ammonia is a zero-carbon fuel with different combustion properties to hydrocarbons. The ... -
Assessment of the Energy Consumption and Drivability Performance of an IPMSM-Driven Electric Vehicle Using Different Buried Magnet Arrangements
Asef, Pedram; Bargallo, Ramon; Lapthorn, Andrew; Tavernini , Davide; Shao , Lingyun; Sorniotti, Aldo (2021-03-04)This study investigates the influence of the buried magnet arrangement on the efficiency and drivability performance provided by an on-board interior permanent magnet synchronous machine for a four-wheel-drive electric car ... -
Authentication in Welded Clad Plate with Similar Material and Thickness
Chizari, Mahmoud (2019-04-24)This paper continues the research previously done by authors on numerical modelling of the dissimilar welded joints with varying clad thicknesses using a commercial finite element software. The current study simulates the ... -
Biomechanical testing procedures in tendon graft reconstructive ACL surgery
Chizari, Mahmoud; Wang, Bin; Barrett, Mel; Snow, Martyn (2010-10-01)This paper, describes the biomedical testing of an Anterior Cruciate Ligament (ACL) reconstruction using an interference screw fixation on the bovine and porcine tissues. The harvesting procedure, experimental setup, ... -
Bone density may affect primary stability of anterior cruciate ligament reconstruction when organic core bone plug fixation technique used
Dehestani, Pouya; Farahmand, Farzam; Borjali, Amirhossein; Bashti, Kaveh; Chizari, Mahmoud (2022-01-06)Purpose: Core Bone Plug Fixation (CBPF) technique is an implant-less methodology for ACL reconstruction. This study investigates the effect of bone density on CBPF stability to identify the bone quality that is likely to ... -
A brief review on nano phase change material-based polymer encapsulation for thermal energy storage systems
CHEN, Yong Kang; Hayat, Muhammad (Springer Nature, 2021-04-30)In recent years, considerable attention has been given to phase change materials (PCMs) that is suggested as a possible medium for thermal energy storage. PCM encapsulation technology is an efficient method of enhancing ... -
Can the body slope of interference screw affect initial stability of reconstructed anterior cruciate ligament?: An in-vitro investigation
Daneshvarhashjin , Nazanin; Chizari, Mahmoud; Mortazavi , Javad; Rouhi , Gholamreza (2021-06-18)Background: Superior biomechanical performance of tapered interference screws, compared with non-tapered screws, with reference to the anterior cruciate ligament (ACL) reconstruction process, has been reported in the ... -
CFD Modelling of Finned-tube CO2 Gas Cooler for Refrigeration Systems
Zhang, Xinyu; Ge, Yunting; Sun, Jining; Li, Liang; Tassou, Savvas (2019-03-01)As a main component in a refrigeration system, finned-tube CO2 gas cooler plays an important role to the system performance and thus needs to be thoroughly investigated. To achieve this, some effective parameters including ... -
Characteristics and Potential Applications of Nano-enhanced Phase Change Materials: A Critical Review on Recent Developments
Hayat, Muhammad; CHEN, Yong Kang; Bevilacqua, Mose; Li, Liang; Yang, Yongzhen (2022-03-01)Owing to incessant proliferation of challenges pertaining to energy storage systems to attain optimum design and efficient performance, massive research is underway on the development of optimal storage medium (used to ...