Bilal Akash
@meu.edu.jo
Engineering
Middle East University
Bilal A. Akash is currently Dean of Engineering at Middle East University. Bilal has obtained his B.S., M.S., and Ph.D. degrees from Southern Illinois University in 1984, 1987, and 1992, respectively. In 2003, he was promoted to Full Professor of Mechanical Engineering. During his 30 years of academic experience he has worked in several academic institutions in Jordan, Kuwait, UAE, Oman, Saudi Arabia, Qatar, and USA. Held various positions ranging from assistant professor to vice president for academic affairs. Bilal is author and coauthor of more than 100 articles in international journals and conferences with a Scopus h-index of 29 and Google Scholar h-index of 42. His research work is mostly in the area of thermal science, which includes thermodynamic analysis of internal combustion and power engines, combustion, pyrolysis and liquefaction of solid fossil fuels, heat transfer, sustainability, energy analysis and engineering systems, solar distillation, and renewable energy.
EDUCATION
• Ph.D., Mechanical Engineering, Southern Illinois University, 1992
• M.S., Mechanical Engineering, Southern Illinois University, 1987
• B.S., Mechanical Engineering, Southern Illinois University, 1984
RESEARCH INTERESTS
Renewable and Alternative Energy
Power Cycles
Fuel
Energy Analysis and Engineering Systems
Desalination
Heat Transfer
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Santhoshkumar R, Akash B, Gowtham R, Dhileep R, Sridhar B, and Marisekar. B
IEEE
As the world continues to prioritize renewable energy sources, solar energy has emerged as a key player in the transition towards a sustainable future. India has taken significant steps towards becoming a global leader in solar energy manufacturing, with both domestic companies and foreign investments establishing the country as a hub for solar equipment production. However, the efficiency of solar panels can be further optimized through the use of solar trackers, which can increase power output by up to 30-40%. While solar trackers have proven to be effective, they often require separate power supplies or consume significant amounts of energy themselves. In the proposed research, a novel solar tracker system that utilizes energy from earth batteries, a green and renewable energy source that is non-toxic and harmless to the soil. This system not only conserves energy but also reduces pollution, making it an ideal solution for a wide range of markets and applications. The earth batteries used in the system are composed of Aluminum and graphite electrodes, which are connected in both parallel and series combinations to achieve the necessary voltage and current levels for charging the secondary batteries and powering the solar tracker. The proposed system demonstrates that by combining clean energy, earth batteries, and solar technology, the proposed topology can create an effective and sustainable solution for agriculture and other industries. The use of earth batteries not only reduces the environmental impact of solar trackers but also provides a reliable and cost-effective energy source. The system has the potential to significantly improve the competitiveness and adoption of solar energy in various markets, while also contributing to the global effort towards a more sustainable future.
Bilal Akash, Ahmad H. Saad, and Mohamed El-Saadawi
Association for Information Communication Technology Education and Science (UIKTEN)
In this paper, we evaluate the most optimal service delivery method that can be implemented by both governmental and private sectors to an effective delivery service to customers. They include conventional service delivery, E-services (online), M-services (smart phones), and robotic process automation (RPA). Benefits and costs were considered in the evaluation process. Benefits were technical feasibility, efficiency, security, reliability, and innovation. The costs included complexity, human resources, facilities management, and maintenance costs. AHP was used to facilitate the multi-criteria decision-making process. Results show that RPA is the least expensive and most beneficial method to delivery services in UAE.
M.C. Barma, R. Saidur, S.M.A. Rahman, A. Allouhi, B.A. Akash, and Sadiq M. Sait
Elsevier BV
Bilal Akash, Ahmad M. Abu Abdo, Omar Akash, and Mousa S. Mohsen
Elsevier BV
Mousa S. Mohsen, Bilal Akash, Ahmad Abu Abdo, and Omar Akash
Elsevier BV
Bilal Akash
Elsevier BV
Bilal A. Akash
Maxwell Scientific Publication Corp.
This study presents experimental investigation of combustion of diesel fuel, kerosene and their blends. The objective of this study is to determine the combustion performance and gas emission of diesel fuel, kerosene and various mixtures of diesel fuel and kerosene in a horizontally positioned cylindrical furnace. Heat was removed from the system by the use of water around a jacket of the combustion unit. The combustion unit is capable of burning most types of liquid and gaseous hydrocarbon fuels. Results on combustion performance and gas emissions are presented for a wide range of air fuel equivalence ratios. The results of exhaust gas analyses of carbon monoxide, carbon dioxide and oxygen are presented. Combustion efficiency and the effect of blending of fuels on its performance are also presented. In general, some improvements in exhaust gas emission and combustion efficiency were obtained upon using mixtures of fuels. The best results were obtained when a fuel blend of 75% kerosene and 25% diesel was prepared and burned in the unit.
S.S. Khaleduzzaman, M.R. Sohel, R. Saidur, I.M. Mahbubul, I.M. Shahrul, B.A. Akash, and J. Selvaraj
Elsevier BV
Ismael Al Hinti, Ahmed Al Ghandoor, Ahmad Sakhrieh, Bilal Akash, and Eiyad Abu Nada
Inderscience Publishers
This study presents a comparative energy and emissions analysis of 15 Arab countries. The relation between energy consumption, CO2 emissions, Gross Domestic Product (GDP), and population is analysed in each of these countries through various energy and CO2 emission indicators: GDP Per Capita (GDPPC), TPES per capita (TPESPC), TPES/GDP, CO2/TPES, CO2 per capita and CO2/GDP. This study also analyses the final energy consumption in these countries according to the type of energy used in addition to its distribution in different sectors.
A Sakhrieh, E Abu-Nada, B Akash, I Al-Hinti, and A Al-Ghandoor
Informa UK Limited
Abstract A thermodynamic, one-zone, zero-dimensional computational model for a diesel engine is established in which a working fluid consisting of various gas mixtures has been implemented. The results were compared to those which use air as the working fluid with variable specific heats. Most of the parameters that are important for compression ignition engines, such as equivalence ratio, engine speed, maximum temperature, gas pressure, brake mean effective pressure and cycle thermal efficiency, have been studied. Furthermore, the effect of boost pressure was studied using both the gas mixture and dependent temperature air models. It was found that the temperature dependent air model overestimates the maximum temperature and cylinder pressure. For example, for the air model, the maximum temperature and cylinder pressure were about 1775 K and 93·5 bar respectively at 2500 rev min−1, and the fuel/air equivalence ratio Φ = 0·6. On the other hand, when the gas mixture model is used under the same con...
A. Sakhrieh, E. Abu-Nada, I. Al-Hinti, A. Al-Ghandoor, and B. Akash
Elsevier BV
E. Abu-Nada, B. Akash, I. Al-Hinti, and A. Al-Sarkhi
Informa UK Limited
AbstractThis paper presents the effect of friction on the performance of a spark ignition engine using a gas mixture as the working fluid. The results were compared to a frictionless engine. Engine parameters that were studied include equivalence ratio, engine speed, break mean effective pressure (BMEP), and cycle thermal efficiency. It was found for the frictionless engine operating at 6000 rev min−1 and stoichiometric air–fuel mixture that BMEP and efficiency were about 14 bar and 36% respectively. On the other hand, when friction is included under the same condition BMEP and efficiency were about 10 bar and 27% respectively. However, at lower engine speed and equivalence ratio, the deviations were much smaller. Therefore, it is more realistic to consider the effect of friction using the gas mixture model instead of air as the working fluid for the analysis of spark ignition engines, especially when running at high speeds and/or rich mixtures.
Bilal A. Akash, Mousa S. Mohsen, and Ali A. Badran
Elsevier BV
I. Al-Hinti, B. Akash, E. Abu-Nada, and A. Al-Sarkhi
Elsevier BV
A. Al-Sarkhi, E. Abu-Nada, S. Nijmeh, and B. Akash
Elsevier BV
E. Abu-Nada, B. Akash, I. Al-Hinti, A. Al-Sarkhi, S. Nijmeh, A. Ibrahim, and A. Shishan
Hindawi Limited
This paper presents a three‐dimensional numerical investigation of a geothermal standing column well (SCW) to carry out heating simulations during January in four selected locations in Jordan. It is shown that the outlet temperature of SCW increases with the depth of the borehole. However, the successful choice of the location is of extreme importance as there is a limit on the outlet temperature that can be achieved at a given location. It is demonstrated that bleeding is generally effective in increasing the outlet temperature. An optimum range of bleed rate exists around 12–13%. Also, bleeding is more effective in achieving higher outlet temperatures when used in locations with higher soil porosity. Copyright © 2007 John Wiley & Sons, Ltd.
E. Abu-Nada, I. Al-Hinti, A. Al-Sarkhi, and B. Akash
ASME International
Abstract This paper presents thermodynamic analysis of piston friction in spark-ignition internal combustion engines. The general effect of piston friction on engine performance was examined during cold starting and normal working conditions. Considerations were made using temperature-dependent specific heat model in order to make the analysis more realistic. A parametric study was performed covering wide range of dependent variables such as engine speed, taking into consideration piston friction combined with the variation of the specific heat with temperature, and heat loss from the cylinder. The results are presented for skirt friction only, and then for total piston friction (skirt and rings). The effect of oil viscosity is investigated over a wide range of engine speeds and oil temperatures. In general, it is found that oils with higher viscosities result in lower efficiency values. Using high viscosity oil can reduce the efficiency by more than 50% at cold oil temperatures. The efficiency maps for SAE 10, SAE 30, and SAE 50 are reported. The results of this model can be practically utilized to obtain optimized efficiency results either by selecting the optimum operating speed for a given oil type (viscosity) and temperature or by selecting the optimum oil type for a given operating speed and temperature. The effect of different piston ring configurations on the efficiency is also presented. Finally, the oil film thickness on the engine performance is studied in this paper.
A. Al-Sarkhi, B. Akash, E. Abu-Nada, S. Nijmeh, and I. Al-Hinti
Informa UK Limited
Abstract Jordan has rich geothermal resources in the low enthalpy ranges as hot springs and wells distributed along many geothermal fields. Underground temperatures within the first 100 m, suitable for supply and storage of thermal energy for various locations in Jordan, are presented. They include Amman, Aqaba, Ghor-Safi, Irbid, Ma'an, Shoubak, and Zarqa. Geothermal energy can help Jordan to be less dependent on imported oil. Standing column well systems are suitable in geological regions with plentiful ground water. This system suits many geothermal places in Jordan. Also, ground source heat pump systems can also be adapted in Jordan.
A. Al Ghandoor, I. Al Hinti, B. Akash, and E. Abu Nada
Inderscience Publishers
This study presents an analysis of the energy and exergy utilisation of the Jordanian urban residential sector by considering the flows of energy and exergy through the main end uses and applications in Jordanian households. To achieve this purpose, a survey covering 200 households was conducted and energy consumption data were gathered. Exergy analysis of Jordanian urban residential sector utilisation indicates a less efficient picture than that obtained by the energy analysis. Energy and exergy efficiencies were found to be equal to 66.6% and 15.4%, respectively.
E. Abu-Nada, A. Al-Sarkhi, B. Akash, and I. Al-Hinti
ASME International
Abstract Numerical investigation of heat transfer and fluid flow over a backward-facing step (BFS), under the effect of suction and blowing, is presented. Here, suction/blowing is implemented on the bottom wall (adjacent to the step). The finite volume technique is used. The distribution of the modified coefficient of friction and Nusselt number at the top and bottom walls of the BFS are obtained. On the bottom wall, and inside the primary recirculation bubble, suction increases the modified coefficient of friction and blowing reduces it. However, after the point of reattachment, mass augmentation causes an increase in the modified coefficient of friction and mass reduction causes a decrease in modified coefficient of friction. On the top wall, suction decreases the modified coefficient of friction and blowing increases it. Local Nusselt number on the bottom wall is increased by suction and is decreased by blowing, and the contrary occurs on the top wall. The maximum local Nusselt number on the bottom wall coincides with the point of reattachment. High values of average Nusselt number on the bottom wall are identified at high Reynolds numbers and high suction bleed rates. However, the low values correspond to high blowing rates. The reattachment length and the length of the top secondary recirculation bubble are computed under the effect of suction and blowing. The reattachment length is increased by increasing blowing bleed rate and is decreased by increasing suction bleed rate. The spots of high Nusselt number, and low coefficient of friction, are identified by using contour maps.
I. Al-Hinti, A. Al-Ghandoor, B. Akash, and E. Abu-Nada
Elsevier BV
E. Abu-Nada, I. Al-Hinti, B. Akash, and A. Al-Sarkhi
Hindawi Limited
This paper presents thermodynamic analysis of spark‐ignition engine. A theoretical model of Otto cycle, with a working fluid consisting of various gas mixtures, has been implemented. It is compared to those which use air as the working fluid with variable temperature specific heats. A wide range of engine parameters were studied, such as equivalence ratio, engine speed, maximum and outlet temperatures, brake mean effective pressure, gas pressure, and cycle thermal efficiency. For example, for the air model, the maximum temperature, brake mean effective pressure (BMEP), and efficiency were about 3000 K, 15 bar, and 32%, respectively, at 5000 rpm and 1.2 equivalence ratio. On the other hand, by using the gas mixture model under the same conditions, the maximum temperature, BMEP, and efficiency were about 2500 K, 13.7 bar, and 29%. However, for the air model, at lower engine speeds of 2000 rpm and equivalence ratio of 0.8, the maximum temperature, BMEP, and efficiency were about 2000 K, 8.7 bar, and 28%, respectively. Also, by using the gas mixture model under these conditions, the maximum temperature, BMEP, and efficiency were about 1900 K, 8.4 bar, and 27%, i.e. with insignificant differences. Therefore, it is more realistic to use gas mixture in cycle analysis instead of merely assuming air to be the working fluid, especially at high engine speeds. Copyright © 2007 John Wiley & Sons, Ltd.