Papers by Muhammad Tawalbeh
Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Jun 14, 2021
Environmental Technology and Innovation, Aug 1, 2023
Energy Conversion and Management, Mar 1, 2023
1. Introduction Transition towards the generation and conversion of clean energy requires the imp... more 1. Introduction Transition towards the generation and conversion of clean energy requires the improvement of current renewable energy-based technologies. Increasing dependence and application of fossil fuels, initiated by escalating world energy demands, have resulted in severe environmental problems including climate change and global warming (Tawalbeh et al., 2022a). Importantly, repercussions of fossil fuel emissions are said to be "unlocalized" where even though the developed nations are responsible for the emissions, it is the developing nations that suffer as evidenced by recent devastations in South Asia (Perera, 2018) (Khokhar, 2022). Fuel cells have immense potential in catalyzing the shift towards cleaner energy sources and can also be utilized as efficient power generators and converters. Besides environmental benefits, www.resrecov.com HIGHLIGHTS ➢ Fuel cells are promising candidates for power generation with zero to low carbon footprint. ➢ Fuel cells are ideal for stationery and transportation sectors due to numerous advantages. ➢ Large scale commercialization still requires the unraveling the technical issues such as durability, and cost.
Energy Conversion and Management, Aug 1, 2023
Case Studies in Chemical and Environmental Engineering, 2021
Adsorptive membranes have attracted attention recently and have been employed to remove variety o... more Adsorptive membranes have attracted attention recently and have been employed to remove variety of pollutants from wastewater. Part I of this work was devoted to provide an overview on the latest progress in their fabrication techniques. This part is devoted to review the studies performed towards environmental applications. Adsorptive membranes were used to remove pollutants such as dyes, heavy metals, and pharmaceuticals. The major findings of this review include presenting the various benefits associated with the use of adsorptive membranes in micropollutants removal from water samples and discussing the potential utilization of bio-adsorbents such as chitosan. While adsorptive membranes proved their effectiveness in removing several pollutants, they still however, suffer from various drawbacks and challenges on a large scale implementation. These drawbacks include the low adsorption capacity, the cost, reusability and fouling. Finally, the paper concludes that exploiting adsorptive membranes in the removal of emerging pharmaceutical compounds in particular have not yet been researched extensively in the literature and more efforts should be focused in this direction.
Fuel, 2021
Abstract Petroleum refining has been one of the key technologies driving global economic developm... more Abstract Petroleum refining has been one of the key technologies driving global economic development and technological advancement for well over a century. Although much of the technology used in refineries is considered mature, the industry is always seeking ways to make process improvements, reduce environmental impact, enhance safety, and achieve cost reductions. In particular, much focus has been placed on improving the existing technology for desulfurization, denitrogenation and alkylation. Due to their unique physical and chemical properties and environmental advantages over traditionally used solvents or catalysts, interest in ionic liquids for such refinery processes has been increasing exponentially in recent years. This review outlines the existing technology used in refineries, such as desulfurization, denitrogenation and alkylation, critically examines recent research into the use of ionic liquid-based alternatives, and discusses the major challenges that must be overcome to facilitate the widespread implementation of ionic liquid-based refinery technology on an industrial scale.
Electronic Materials, 2021
Implantable bioelectrodes have the potential to advance neural sensing and muscle stimulation, ma... more Implantable bioelectrodes have the potential to advance neural sensing and muscle stimulation, mainly in patients with peripheral nerve injuries. They function as the transducer at the interface between the damaged nerve and the muscle which is controlled by that nerve. This work reports the fabrication and characterization of novel, low-cost, flexible bioelectrodes based on polyaniline (PANI) and supported with silicone polymer. The fabricated electrodes were evaluated for their electrical and mechanical characteristics. PANI was used as the main transducer component in this fabrication. The characterization methods included electrical conductivity, capacitive behavior, long-term electrical impedance, and mechanical evaluation. The results of the fabricated PANI-silicone-based samples displayed a bulk impedance of 0.6 kΩ with an impedance of 1.6 kΩ at the frequency of 1 kHz. Furthermore, the bioelectrodes showed a charge storage capacity range from 0.0730 to 4.3124 C/cm2. The sampl...
Desalination, May 1, 2023
The current study investigates the correlation of solar irradiance and sunlit hours for Sharjah c... more The current study investigates the correlation of solar irradiance and sunlit hours for Sharjah city, United Arab Emirates. The most straightforward tool to use is the linear Angstrom model (AM) that can be populated with experimental measurements to evaluate the model parameters a and b (y-intercept and slope, respectively). Other weather data, such as relative humidity and wind speed will also be collected to explain the deviation from straight-line behavior. These two variables are especially important as they determine the quality of incident irradiation, since high values of relative humidity or wind speed is an indication of airborne dust or water vapor molecules, respectively. The values obtained for the particular Sharjah model are a = 0.17 and b = 0.54 which are limited for summer and fall 2017, but with long-term data logging, a more comprehensive model can be developed and used to predict weather patterns.
Renewable Energy, Jul 1, 2022
Thermal science and engineering progress, Feb 1, 2023
2020 Advances in Science and Engineering Technology International Conferences (ASET), 2020
Hybrid PV- thermal system (PV/T) is used to harvest both electrical and thermal energy from solar... more Hybrid PV- thermal system (PV/T) is used to harvest both electrical and thermal energy from solar radiation. Using a hybrid PV/T system improves the electrical efficiency of the PV module while the thermal energy can be used for various heating applications. The aim of this work is to numerically study the performance of the PV/T system in a hot climate condition. The cooling system of PV/T consists of several channels parallel to each other. A novel three-dimensional numerical simulation of the system was performed to study the thermal efficiency. The standard k-epsilon turbulence model was used during the simulation. This novel system was based on applying different thermal boundary conditions on the sides of one channel rather than simulating the whole cooling system. Using one channel simulation allows the creation of a smaller number of meshes, hence, reduces the computational time. The thermal efficiency of the PV/T system was calculated using the superposition method for different mass flow rates. The results showed an increase in the thermal efficiency from 60% up to 68% by increasing the mass flow rates from 0.4 - 5.4 L/min. These results were in good agreement with the results in the literature.
Thermal analysis of a multi-layer microchannel heat sink for cooling concentrator photovoltaic (C... more Thermal analysis of a multi-layer microchannel heat sink for cooling concentrator photovoltaic (CPV) cells
International Journal of Hydrogen Energy, Aug 1, 2021
Abstract This work describes the synthesis and evaluation of nanocomposite membranes based on cal... more Abstract This work describes the synthesis and evaluation of nanocomposite membranes based on calcium phosphate (CP)/ionic liquids (ILs) for high-temperature proton exchange membrane (PEM) fuel cells. Several composite membranes were synthesized by varying the mass ratios of ILs with respect to the CP and all supported on porous polytetrafluoroethylene (PTFE). The membranes exhibit high proton conductivities. Two ionic liquids were investigated in this study, namely, 1-Hexyl-3- methylimidazolium tricyanomethanide, [HMIM][C4N3−], and 1-Ethyl-3-methylimidazolium methanesulfonate, [EMIM][CH3O3S−]. At room temperature, the CP/PTFE/[HMIM][C4N3−] composite membrane possessed a high proton conductivity of 0.1 S cm−1. When processed at 200 °C, and fully anhydrous conditions, the membrane showed a conductivity of 3.14 × 10−3 S cm−1. Membranes based on CP/PTFE/[EMIM][CH3O3S−] on the other hand, had a maximum proton conductivity of 2.06 × 10−3 S cm−1 at room temperature. The proton conductivities reported in this work appear promising for the application in high-temperature PEMFCs operated above the boiling point of water.
International Journal of Hydrogen Energy, Jul 1, 2023
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Papers by Muhammad Tawalbeh