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Wyszukujesz frazę "Alsaqoor, Sameh" wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Performance Analysis of a Thermoelectric Cooler Placed between Two Thermoelectric Generators for Different Heat Transfer Conditions
    Autorzy:
    Alsaqoor, Sameh
    Powiązania:
    https://bibliotekanauki.pl/articles/24201669.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    thermoelectric cooler
    sandwich TEC
    TEG performance
    thermoelectric generator
    heat transfer conditions
    enhancing power generation
    low energy harvesting
    renewable energy induction
    Opis:
    The thermoelectric cooler (TEC) and thermoelectric generator (TEG) modules have several appealing features, including fixed parts, high reliability, low maintenance costs, and seamless connection with other heating equipment, accompaniment, can be powered by a variety of low-energy renewable energy sources such as solar water/air collectors, ground heat exchangers or heat from biomass. The thermoelectric assembly was integrated into the TEC using the TEG in this study. A prototype was developed in which recently developed thermoelectric modules were integrated into a thermoelectric cooler. For this purpose, a TEC sandwiched between two TEGs with different heat transfer conditions was established, to simulate the heat transfer and thermoelectric behavior of both the TEG and the TEC system, and evaluate the effect of the combined TEG-TEC on the performance parameters of the good system by comparing different cooling modes ranging from natural convection, forced convection, and water-cooling tests. It was shown that to the natural convection of heat transfer, as the TEC voltage increases, the hot surface temperature of the upper TEG increases, and the cold surface temperature of the lower TEG decreases, where the lowest TEC temperature reaches 1.36 A. When using forced convection (by using a fan), the temperature profile decreases over time, starting at around 70 °C for 7V, and after almost 60 minutes, the temperature drops to around 45 °C for 3V. This turned out to be a match between experiment and theory in all traces shown, with a voltage difference of 25 mV for 3V TEC and ending at 70 mV for 8V TEC.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 4; 27--35
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using Agglomeration Techniques for Coal and Ash Waste Management in the Circular Economy
    Autorzy:
    Borowski, Gabriel
    Alsaqoor, Sameh
    Alahmer, Ali
    Powiązania:
    https://bibliotekanauki.pl/articles/2023308.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    fine coal
    fly ash
    agglomeration
    waste management
    circular economy
    Opis:
    This is a scoping review of agglomeration techniques to obtain of solid bodies from particle waste-materials for their utilization. For this purpose, the granulation and briquetting of fine coal and fly ash were presented in detail. Many successful works on solid fuels production, with coal only, and also with the addition of biomass, were presented. During the solid fuel combustion in power boilers, significant amounts of ash are generated. The properties of fly ashes were taken into consideration, and different methods of their utilization were proposed to obtain a wide range of useful products. Con-sequently, the waste resources of coal and ash were fully utilized. In final remarks, it was concluded, that the agglomeration techniques play an important role in waste management, but particularly in the circular economy.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 3; 264-276
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimal Mass Diffusion Transfer in Solids Using Heat Transfer Similarities
    Autorzy:
    Jaber, Samar
    Alahmer, Ali
    Borowski, Gabriel
    Alsaqoor, Sameh
    Powiązania:
    https://bibliotekanauki.pl/articles/957972.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    diffusion transfer
    Fick's Law
    diffusion resistance
    transfer dyfuzyjny
    prawo Ficka
    opór dyfuzyjny
    Opis:
    A new concept of solid-solid mass diffusion fin was introduced in this paper. The authors described the mass diffusion in fluid flows to analyze the transfer process in solids and its applications, especially in metallurgical research. Using the advantage of the similarity between heat transfer and mass diffusion transfer will make this issue more practical. The authors suggested a new approach to determine the maximum mass diffusion transfer between two solids by implementing of the extended surface on each solid, where the optimal mass diffusion between solids is required. Then, meshing the surfaces together in order to increase the transfer efficiency was carried out. A complete analysis of the extended surfaces design (diffusion fins), its efficiency and effectiveness were presented. Moreover, mathematical models of each consideration were constructed. The authors found that the total surface efficiency increased along with the number of mass diffusion fins attached to the base, but its effectiveness did not. The mass diffusion for an extended plate increased the total mass diffusion transfer between two materials.
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 4; 54-59
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using of Adhesives and Binders for Agglomeration of Particle Waste Resources
    Autorzy:
    Alsaqoor, Sameh
    Borowski, Gabriel
    Alahmer, Ali
    Beithou, Nabil
    Powiązania:
    https://bibliotekanauki.pl/articles/2201761.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesives
    binders
    waste
    fine coal
    fine-grained iron
    fly ash
    Opis:
    This review presents the usage of adhesives and binders for agglomeration of particle materials, including waste, in order to obtain strong bodies. The binding materials were classified into three categories: inorganic binders, organic binders, and compound binders. Many examples of the agglomeration effect of binders in view of their adhesive and thickening reveal that they have a significant impact on the qualities and use of waste lumps. Binders for fine waste granulation, briquetting, and pelletizing were demonstrated in-depth. In all cases, the mechanical strength of the agglomerates produced was increased. It was observed that the majority of the additives may be easily obtained from waste resources, posing a minimal environmental risk.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 3; 124--135
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Behavior of Jordanian Oil Shale during Combustion Process from the El-Lajjun Deposit
    Autorzy:
    Gougazeh, Mousa
    Alsaqoor, Sameh
    Borowski, Gabriel
    Alsafasfeh, Ashraf
    Hdaib, Ismail I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2173323.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    El-Lajjun oil shale
    combustion
    X-ray diffraction
    thermogravimetric
    fourier transform infrared spectroscopy
    X-ray fluorescence
    Opis:
    The results of X-ray diffraction, thermogravimetric and FTIR spectroscopy analyses of mineral composition indicated that the El-Lajjun oil shale is principally composed of calcite, quartz with minor amounts of kaolinite), gypsum, and apatite. The obtained oil shale ash products at 830 °C and 1030 °C are dominated by lime, quartz, anhydrite, portlandite, gehlenite, and amorphous phases. The TGA weight loss curves clearly indicate that it occurred in the temperature range from 310 to 650 °C. The decomposition of oil shale carbonates was detected above 750°C. The functional groups in the organic material of oil shale are dominated by the aliphatic hydrocarbons, the semi-ash of which had diverse structures of polycyclic aromatic hydrocarbons. The most intensive of combustion occurred in the temperature range of 400–750 °C. In this temperature range, about 75 wt.% was accounted for the total mass loss.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 8; 133--140
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilization of Desulfurized Heavy Liquid Fuel Blends in Domestic Boiler
    Autorzy:
    Al Aboushi, Ahmad
    Abdelhafez, Eman
    Hamdan, Mohammad
    Ajib, Salman
    Alsaqoor, Sameh
    Powiązania:
    https://bibliotekanauki.pl/articles/27323821.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    shale oil
    domestic boiler
    activated carbon
    diesel
    sulfur oxide
    Opis:
    One way to cut down the consumption of diesel fuel in domestic heating in Jordan is to blend it with shale oil, which may be extracted from oil shale. This leads to a cut down in the national fuel bill in Jordan. Unfortunately, shale oil contains significant amounts of sulfur as impurities and upon burning sulfur oxides are emitted causing a negative environmental impact, and hence desulfurization of such fuel blends is essential. This may be achieved by adding activated carbon to the fluids. The process of removing sulfur from shale oil is crucial for safeguarding the environment, human well-being, and equipment, as well as meeting regulatory requirements and creating superior-quality goods. In this study, a domestic boiler was utilized to evaluate the degree of desulfurization process of blends of diesel and shale oil fuels upon their burning in a domestic boiler, to achieve this, blends of both fuels were prepared with varying amounts of shale oil (10%, 20%, 30%, and 40%) and various amounts of activated carbon were added to the prepared mixtures of diesel fuel and shale oil. The assessment of performance included examining the environmental impact, specifically by analyzing exhaust gases to measure the concentration of Sulfur Oxide (SO2). It was found that an increase in the concentration of shale oil in the mixture led to an increase in the concentration of SO2. However, adding more activated carbon to the mixture from the fuels resulted in a decrease in the SO2 concentration. The lowest SO2 concentration was observed when 1g of activated carbon was added per liter of the fuel mixture at a 20% concentration of shale oil, and 0.6g of activated carbon per liter of the fuel mixture at a 40% concentration of oil shale.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 7; 225--233
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An Experimental Investigation into Improving the Performance of Thermoelectric Generators
    Autorzy:
    Alahmer, Ali
    Khalid, Mohammad Bani
    Beithou, Nabil
    Borowski, Gabriel
    Alsaqoor, Sameh
    Alhendi, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068454.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    thermoelectric generator
    liquid evaporation
    TEG performance
    enhancing power generation
    waste energy harvesting
    Opis:
    Low-temperature heat sources have become increasingly popular in recent years, particularly for energy generation. The majority of thermal devices in the market (including devices using solar energy, geothermal energy, waste energy, and so on) transform heat into electricity indirectly, requiring mechanical work before producing power. Through the Seebeck effect, the technology that employs a thermoelectric generator (TEG) may directly transform heat energy into electricity. The TEG technology provides several advantages, including compactness, quietness, and the absence of moving components. TEGs have a low thermal and electrical efficiency, which is one of their main drawbacks. Therefore, the performance of a thermoelectric generator is improved by employing liquid evaporation heat transfer in this manuscript. The performance of the thermoelectric was examined experimentally and compared to the liquid evaporation mode under varied heat flux values and different modes of heat transfer in terms of free and forced convection with and without fins. The experimental results revealed that when compared to free convection without fins, adopting forced liquid evaporation convection would improve TEG voltage variation by 435.9%.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 3; 100--108
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated Eco-Friendly Outdoor Cooling System – Case Study of Hot-Humid Climate Countries
    Autorzy:
    Bani Khalid, Mohammad
    Beithou, Nabil
    Al-Taani, M. A. Sh.
    Andruszkiewicz, Artur
    Alahmer, Ali
    Borowski, Gabriel
    Alsaqoor, Sameh
    Powiązania:
    https://bibliotekanauki.pl/articles/2025812.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    hot climate country
    open area
    air conditioning
    micro-climate
    humidity control
    recreation area
    Opis:
    This research proposed an integrated eco-system for conditioning an outdoor public area (park or sport) in a hothumid environment. It is accomplished by the use of a dehumidifier control machine driven by renewable solar power; after which air is distributed throughout a ducting system. The system will harvest moisture from the air, utilize it for drinking water production and plants irrigation as well as deliver low temperature, low humidity ratio air for controlling the outdoor air, which results in a comfortable outdoor relative humidity and temperature (24 °C, 50% RH). The Integrated Eco-Friendly Cooling System (IEFCS) is a sustainable self-dependent in energy and water sources. It provides a positive impact on the microclimate of the site, assists in night illumination, supplies water for drinking, plant irrigation, and allows people to enjoy a thermally comfortable atmosphere. The advantages include low maintaining cost as well as the possibility to be scaled and implemented anywhere according to the selected location.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 1; 64-72
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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