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Content available Enhancing Thermal Performance of Hot Storage Tanks through Chimney-Type Electric Heating and Natural Circulation
Beithou Nabil, Abdallatif Nassir, Khalid Mohammad Bani, Alsaqoor Sameh, Alahmer Ali, Borowski Gabriel, As’ad Samer, Attar Hani, Andruszkiewicz Artur
Advances in Science and Technology. Research Journal
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2024
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Vol. 18, no 3
151--160
EN
Hot storage tanks (HST) are known for their high energy consumption, attributed to variations in usage, heat dissipation within the tank, and heat losses to the surroundings. This study proposes a chimney-type electrically heated HST, which is investigated under static mode to enhance its thermal performance. Different natural circulation areas (chimney areas) with large (9.5 cm diameter), medium (2.5 cm diameter), and small (1.5 cm diameter) sizes were utilized to examine the effect of natural circulation on the HST performance. Additionally, the influence of chimney insulation on the HST performance was also studied. The experiments revealed that the chimney significantly affected the thermal stratification within the tank. Different chimney contact diameters (9.5 cm, 2.5 cm, and 1.5 cm) were tested, showing varying degrees of thermal stratification. The results indicated that smaller chimney contact diameters led to higher thermal stratification and more rapid heating of the top layer temperatures. However, the impact of insulation on thermal performance was inconclusive, suggesting the need for more effective insulation and further investigation into the dynamic mode of operation. The findings also highlighted the faster heating of the top outer layer compared to the larger diameter, emphasizing the significance of the chimney type electrical heater in the hot storage tank.
2
Content available Hierarchical risk communication management framework for construction projects
Mansour Mohammad A., Beithou Nabil, Alsqour Moh'd, Tarawneh Sultan, Rababa’a Khalid Al, Alsaqoor Sameh, Chodakowska Ewa
Engineering Management in Production and Services
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2023
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Vol. 15, no. 4
104--115
EN
Risk, as an effect of uncertainty, is associated with every human activity. Like any other industry, construction companies are eager to reduce the uncertainty of reluctant events. A well-planned risk communication system could contribute to the success of a construction project. A proper announcement protocol could be a mitigating lever for identified or unidentified risks during planning and monitoring processes. This research aims to present a risk communication management system (RCMS) for construction companies involved in large projects. The proposed model includes a step-by-step communication procedure considering the authority level within the organisational hierarchical structure. The model aims to remove the ambiguity of risk communications during the construction process under uncertain conditions. It leaves no or little room for the emergence of unplanned risks. The proposed communication structure has been implemented in GRC cladding construction projects, and the risk communication time and response have been significantly improved.
3
Content available Effect of the Residential Photovoltaic Systems Evolution on Electricity and Thermal Energy Usage in Jordan
Beithou Nabil, Mansour Mohammad A., Abdellatif Nasser, Alsaqoor Sameh, Tarawneh Sultan, Jaber Ala H., Andruszkiewicz Artur, Alsqour Moh'd, Borowski Gabriel, Alahmer Ali, Siderska Julia
Advances in Science and Technology. Research Journal
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2023
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Vol. 17, no 3
79--87
EN
The aim of this study was to improve the residential photovoltaic systems (RPVS) sector, using surveys as the research method. The research was carried out in four selected districts in Jordan, taking into account the largest population. The prepared sets of questionnaires covered a wide range of topics, divided into three parts and seven sections. The results showed that the highest use of solar energy for heating was in the Amman district, while in the Irbid and Zarqa districts photovoltaic (PV) system installations can potentially be more prospective because of high electricity and thermal energy usage. This study found the willingness of people to have a combined on-grid/off-grid PV systems, made by European and American manufacturers. However, those respondents were afraid of the high maintenance cost, the unclear lifespan of the system, doubtful reliability, and unclear warrantee of the PV systems.
4
Content available remote Simulation studies of controllers for battery thermal management system with multi-thermoelectric modules
Nasir Mohammad Tariq, Beithou Nabil, Borowski Gabriel, Alsaqoor Sameh
Przegląd Elektrotechniczny
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2022
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R. 98, nr 8
77--83
EN
In this paper, an simulated investigations for the modified lithium-ion battery thermal management system using PID, as well Null-Space-based Behavioral (NSB) controllers were presented. This work sought to keep the battery life at its optimum temperature using low power. We used thermoelectric modules with collaborating controllers to minimize the electricity consumed during the cooling process. Comparing to PID, NSB controller achieved the reduction of consumed power of 20%, faster temperature return to the set point, and a more uniform controlling the temperature of the battery cells.
PL
W niniejszym artykule przedstawiono wyniki symulacyjnych badań nad zmodyfikowaniem systemu zarządzania temperaturą akumulatora litowo-jonowego z wykorzystaniem regulatora PID oraz regulatora behawioralnego typu Null-Space (NSB). Celem pracy było utrzymanie żywotności baterii w optymalnej temperaturze przy niskim poborze mocy. Wykorzystano moduły termoelektryczne z dedykowanym sterownikiem dla zmniejszenia zużycia energii elektrycznej podczas procesu chłodzenia. W porównaniu do PID, zastosowanie regulatora NSB umożliwia redukcję pobieranej mocy o 20%, szybszy powrót temperatury do wartości zadanej oraz bardziej równomierne sterowanie temperaturą ogniw akumulatora
5
Content available Integrated Eco-Friendly Outdoor Cooling System – Case Study of Hot-Humid Climate Countries
Bani Khalid Mohammad, Beithou Nabil, Al-Taani M. A. Sh., Andruszkiewicz Artur, Alahmer Ali, Borowski Gabriel, Alsaqoor Sameh
Journal of Ecological Engineering
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2022
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Vol. 23, nr 1
64--72
EN
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.
6
Content available An Experimental Investigation into Improving the Performance of Thermoelectric Generators
Alahmer Ali, Khalid Mohammad Bani, Beithou Nabil, Borowski Gabriel, Alsaqoor Sameh, Alhendi H.
Journal of Ecological Engineering
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2022
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Vol. 23, nr 3
100--108
EN
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%.
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Content available Using of Adhesives and Binders for Agglomeration of Particle Waste Resources
Alsaqoor Sameh, Borowski Gabriel, Alahmer Ali, Beithou Nabil
Advances in Science and Technology. Research Journal
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2022
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Vol. 16, no 3
124--135
EN
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.
8
Content available Analysis of Partially Evacuated Solar Still System under Jordan Climate
Qandil Ahmed, Alshaikh Ibrahim Abu, Aljabarin Nader, Rababa Khalid S., Beithou Nabil
Journal of Ecological Engineering
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2020
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Vol. 21, nr 3
1--9
EN
The pressing need for reducing the global warming effects from the emission of greenhouse gases necessitates the use of renewable energy where possible. Solar distillers are devices with a promising future. In this work, an experimental setup (solar distiller) was constructed and equipped with a mirror, basin, glass cover, compressor, sensors and controllers to study the partial evacuation effects on different solar distillation parameters and the production capacity under the Jordanian climate. The test rig was tested for three different water levels (1, 2 and 3 cm), and four pressure values (1, 0.9, 0.8 and 0.7 atm) under the Jordanian climate. The detailed experimental results strongly correlate with the results previously published in literature. The modifications performed on the system doubled the previously attained efficiency. These improvements in the solar distiller will favor the application of the vacuum pressure principle in many different applications, such as the water extraction from the atmospheric air.
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