Mohamed Qenawy

ORCID: 0009-0000-8513-5809
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About
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Research Areas
  • Heat Transfer Mechanisms
  • Turbomachinery Performance and Optimization
  • Fluid Dynamics and Turbulent Flows
  • Food Drying and Modeling
  • Solar Thermal and Photovoltaic Systems
  • Freezing and Crystallization Processes
  • Combustion and flame dynamics
  • Biodiesel Production and Applications
  • Fluid Dynamics and Heat Transfer
  • Photovoltaic System Optimization Techniques
  • Garlic and Onion Studies
  • Microbial Inactivation Methods
  • Particle Dynamics in Fluid Flows
  • Solar-Powered Water Purification Methods
  • Laser Material Processing Techniques
  • Dermatologic Treatments and Research
  • Microencapsulation and Drying Processes
  • Solar Radiation and Photovoltaics
  • Postharvest Quality and Shelf Life Management
  • Advanced Combustion Engine Technologies
  • Heat transfer and supercritical fluids
  • Nanomaterials and Printing Technologies
  • Electrohydrodynamics and Fluid Dynamics
  • Photonic Crystal and Fiber Optics
  • Global Energy and Sustainability Research

Jiangsu University
2022-2025

Aswan University
2014-2024

Shanghai Jiao Tong University
2018-2022

Laser dermatology has become a convenient technique for medical treatment. However, the epidermal temperature could be increased, leading to intolerable side effects. Cryogen spray cooling (CSC) is implemented decrease damage, but current CSC increase cryogen wastage. In this study, coupled with cold air jet (CAJ) and further subjected intermittent strategy (ICSC) mitigate film deposition, enhance heat transfer, save consumption, through CAJ-to-spray interaction. The surface measured by thin...

10.1063/5.0190250 article EN Physics of Fluids 2024-02-01

Okra (HibiscusesculentusL.) was dried using an infrared drier at radiation intensities of 0.167, 0.235, and 0.520 W/cm2 air velocities 0.3, 0.5, 0.7 m/s to determine its thin-layer drying characteristics quality parameters. during falling rates, time reduced with rising intensity declining velocity. Eleven alternative numerical simulations fit the data gathered through kinetics. The equation developed by Midilli et al. determined be most useful model for illuminating okra's behavior. Fick's...

10.1016/j.csite.2023.103451 article EN cc-by-nc-nd Case Studies in Thermal Engineering 2023-09-06

One feasible approach for enhancing material quality and expediting the dehydrating procedure is using infrared radiation to provide heat. The impact of power (0.130 - 0.341 W/cm2), airflow (0.5-1.5 m/s), slice thickness (2-6 mm) on mass transfer, drying kinetics, color, shrinkage, rehydration ratio conditions. During process, dried samples' initial moisture content 86.7% was decreased 11% (w.b.). Eleven statistical factors were used compare eleven alternative mathematical models. results...

10.1016/j.csite.2024.104522 article EN cc-by-nc-nd Case Studies in Thermal Engineering 2024-05-09

Industrial growth has led to increased electronic component integration, resulting in higher working temperatures and technological failures. Cryogen spray cooling (CSC) could reach cryogenic with fast-responding, but its heat transfer limitation due liquid film deposition is potentially challenging. In this study, CSC incorporated either a cold air jet (CAJ) or sweeping (SWJ) enhance fluid flow. A K-type thermocouple used for measuring the surface temperature, while improved Duhamel theorem...

10.1063/5.0201223 article EN Physics of Fluids 2024-04-01

Effective drying methods are a highly suitable solution for ensuring stable food supply chains, reducing postharvest agricultural losses, and preventing the spoilage of perishable fruits vegetables. Moreover, machine learning techniques innovative dependable, especially in addressing optimizing processes. This study utilized continuous infrared (IR) hot air dryer to dry garlic ( Allium sativum L.) slices. The experiments were conducted at different levels IR power, velocities V ),...

10.1111/1750-3841.17373 article EN Journal of Food Science 2024-10-09

Abstract Food drying is a vital technology in agricultural preservation, where hybrid provides efficient moisture removal. However, the transient behavior of ratio () and associated rate could increase energy consumption if not managed with an effective energy‐saving strategy. This study investigates impacts convection‐radiation on , time, consumption. Unlike previous studies, which have fully addressed connections between operating conditions kinetics, this work new insights into these...

10.1111/1750-3841.17522 article EN Journal of Food Science 2024-11-24

This study focuses on the interactions between cryogen spray cooling (CSC) and cold air jet (CAJ), as well heat transfer performance upon CAJ-CSC impingement assisted for laser dermatology. CAJ is found to collapse downstream windward side, enhancing fluctuations of R1234yf width. Standard deviation (SD) distribution identifies that at nozzle exit are attributed ambient-to-spray interactions, which also confirmed by proper orthogonal decomposition (POD) analysis. The third POD mode...

10.1063/5.0180293 article EN Physics of Fluids 2023-12-01

Abstract An experimental study was conducted to investigate the influence of mainstream oscillations on spatio-temporal variation leading-edge film cooling effectiveness. The investigation utilized fast-response pressure-sensitive paint (Fast-PSP) technique at high frame rate. During experiment, coolant (i.e., CO2, DR = 1.53) discharged into three rows cylindrical holes. Various blowing ratios M 0.50, 0.75, 1.00, and 1.50) were tested under steady f 0 Hz) oscillating 7 Hz 25 conditions....

10.1115/1.4048794 article EN Journal of Turbomachinery 2020-10-15

With the fossil fuel crisis, world has been looking for renewable energies, and concentrated solar tower (CST) technology best solution in intensive areas. This paper introduced a detailed design, construction, operation of small-scale CST water heating applications Aswan. Two heliostats (i.e., 50 × cm2 cross-section area 1.4 m spacing) redirect incoming radiation into tower's receiver. The receiver is 20 30 on 1.0 height space 3.0 from heliostats. Water flows through 5.0 cm receiver's...

10.1016/j.csite.2023.103141 article EN cc-by-nc-nd Case Studies in Thermal Engineering 2023-05-30

Abstract The flow structures and unsteady behaviors of a flat plate film cooling behind single row circular holes fed by internal crossflow were extensively investigated. investigation was achieved experimentally using fast-response pressure-sensitive paint (PSP) at high frame rate numerically large-eddy simulation (LES). During the experiment, coolant discharged from discrete (i.e., with 3D spacing, 6.5D entry length, 35 deg incline angle) via channel. Two blowing ratios (M = 0.4 0.8)...

10.1115/1.4046493 article EN Journal of Turbomachinery 2020-02-28
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