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Papers by Hani AL-Rawashdeh

International Journal on Energy Conversion (IRECON)

Energies

Quantitative and qualitative analyses of chemical species out of CI engine tailpipe emissions fue... more Quantitative and qualitative analyses of chemical species out of CI engine tailpipe emissions fueled with pure diesel and diesel methanol blends, trapped in dinitro phenylhydrazine (DNPH) solutions, were performed. The formed hydrazine was studied using high-performance liquid chromatography (HPLC) accompanied by a detector for ultraviolet (UV). A set of carbonyl-DNPH derivative standards was developed and compared with engine tailpipe gases produced by both fuel modes. An understanding of carbonyl chemical compounds such as formaldehyde, acetaldehyde, and acrolein (HCHO, CH3CHO, and H2 = CHCHO, respectively) is essential for researchers to know how these chemicals affect human health and the environment. In both fuel modes, acetaldehyde was the main combustible product 25 ppm followed by formaldehyde 17 ppm, croton aldehydes 16 ppm, acrolein 12 ppm, and iso-valerdyhyde 10 ppm. In addition to these species, only a few other chemical species were detected in the exhaust gas. Accordin...

International Journal of Economics and Finance, 2018

The current study aims to define the role of internal control components on financing activities ... more The current study aims to define the role of internal control components on financing activities in Jordan Islamic Bank. The study population was made of all the funding granting committees’ employees in Jordan Islamic Bank (North region); (48) employees in (2017). The study sample included the study population as a whole, but due to the absence of some employees, the study sample was made of (40) employees as a result. To accomplish the study objectives, both; the descriptive and analytical approaches have been used, besides (T-test) and simple linear regression analysis. The study reached several results, the most important among them were: there is a statistically significant role for the internal control components on the financing activities in Jordan Islamic Bank (North region) at Sig. (α≤0.05), with a high level. there is a statistically significant role for the internal control environment over the financing activities in Jordan Islamic Bank (North region) with a very high l...

In this paper, we design and simulate a 20 kW solar on grid power charging unit for electric vehi... more In this paper, we design and simulate a 20 kW solar on grid power charging unit for electric vehicles at Al-Hussein Bin Talal University (AHU)/Maan-Jordan by using a Bluesol 3.0, Sketch Up 2018 software. Two scenarios are considered; one where number of vehicles is five in the interval (8 am – 12 pm) & five vehicles in the interval (12 pm - 4 pm) and time of charge half of battery capacity four hours and the second scenarios where number of vehicles is eight in the interval (8 am - 12 pm) & eight vehicles in the interval (12 pm - 4 pm) and time of charge half of battery capacity four hours. We conclude that the system is efficient and very useful to the electric vehicles users in the university. In addition, the system is reducing the CO2 emissions annually from generating power by 28.4 tons of CO2.

International Review of Mechanical Engineering (IREME), 2021

Fuel Processing Technology, 2021

Energy Conversion and Management, 2020

Open Journal of Business and Management, 2018

International Business Research, 2017

This study aims at identifying the internal control components at the Jordanian Ministry of Justi... more This study aims at identifying the internal control components at the Jordanian Ministry of Justice (North Province) as well as identifying the role of those components in maintaining public funds and measuring the impact of said role. The study population consisted of all the workers of the accounting and internal control departments at the Jordanian Ministry of Justice (North Province) who counted (81) employees. The study sample was chosen from that population where (70) questionnaires were distributed, (66) questionnaires were retrieved and (3) questionnaires were excluded for the reason of short information which made the study sample reach at (63) male and female employees at the rate of (%90) of the study population. Of the most prominent results of the study is that there is a role of the internal control components at the Jordanian Ministry of Justice (North Province) in the maintenance of public funds in a medium level. Moreover, the internal control context received the h...

International Journal of Green Energy, 2008

International Journal of Energy Research

Irrigation systems to supply water to agricultural land are essential in remote and isolated area... more Irrigation systems to supply water to agricultural land are essential in remote and isolated areas. However, these areas often face challenges and obstacles in obtaining energy for use in irrigation since many depend on diesel generators (DGs) to produce electricity. A farm located in a remote area in Al-Jafr, Jordan, uses a 100 kW DG to supply its need for electric energy for irrigation purposes. Its energy consumption is 500 kWh/day at 0.29/kWh.Thispaperdesignsanewhybridrenewableenergysystem(HRES)forthisfarmbyconductingsimulationsusingtheHOMER(HybridOptimizationofMultipleEnergyResources)software.Thisnewsystemconsistsofsolarphotovoltaics(PVs),batteries,aninverter,anda100kWDG.TheresultsshowedacleardifferencebetweenthebaselineDG−onlysystemandthehybridsystemregardingenergycostandcarbonemissions.TheenergypricefortheHRESis0.29/kWh. This paper designs a new hybrid renewable energy system (HRES) for this farm by conducting simulations using the HOMER (Hybrid Optimization of Multiple Energy Resources) software. This new system consists of solar photovoltaics (PVs), batteries, an inverter, and a 100 kW DG. The results showed a clear difference between the baseline DG-only system and the hybrid system regarding energy cost and carbon emissions. The energy price for the HRES is 0.29/kWh.Thispaperdesignsanewhybridrenewableenergysystem(HRES)forthisfarmbyconductingsimulationsusingtheHOMER(HybridOptimizationofMultipleEnergyResources)software.Thisnewsystemconsistsofsolarphotovoltaics(PVs),batteries,aninverter,anda100kWDG.TheresultsshowedacleardifferencebetweenthebaselineDG−onlysystemandthehybridsystemregardingenergycostandcarbonemissions.TheenergypricefortheHRESis0.107/kWh, and carbon dioxide emissions are reduced to 27,378 kg/yr from 184,917 kg/yr for the...

Sustainability

A hybrid system, such as solar and wind, may be more successful than nonhybrid systems in acceler... more A hybrid system, such as solar and wind, may be more successful than nonhybrid systems in accelerating the transition from conventional to renewable power sources. However, these new energy sources have several challenges, such as intermittency, storage capacity, and grid stability. This paper presents a complete analysis and study of a hybrid renewable-energy system (HRES) to convert a facility into a green building and reduce its dependence on conventional energy by generating clean energy with near-zero greenhouse-gas (GHG) emissions. The proposed system aims to reduce the energy bill of a hotel in Petra, Jordan, by considering different sustainable energy resource configurations in a grid-connected hybrid renewable energy system (GHRES). The hybrid optimization of multiple energy resources (HOMER) grid software was utilized on the hybrid systems to study ways to improve their overall efficiency and mitigate GHG emissions from an economic perspective. The hybrid system components...

International Journal of Renewable Energy Development

This paper examines the impact of accumulated dust on two types of photovoltaic (PV) cells in the... more This paper examines the impact of accumulated dust on two types of photovoltaic (PV) cells in the performance of solar panels facility located in the southern part of Jordan between January to August 2020. To determine the performance of the solar PV panel system, two elements have been considered: sun radiation total efficiency and output power generated from the two types of the PV panel. Results of the study revealed that the mass of dust accumulated on the polycrystalline panel accumulated faster than on the cadmium telluride panel at a rate of 10.5 g/m2 for polycrystalline panels and 8.4g/m2 for cadmium telluride panel. Furthermore, results indicated that the projected drop in the efficiency of washed and unwashed polycrystalline panels decreased monthly by 5% and 16% respectively, while the efficiency of washed and unwashed cadmium telluride panels decreased monthly by 5% and 11.5% respectively. In the same context, results indicated that the wind speed, concentration rate, a...

International Journal of Hydrogen Energy

Innovative Systems Design and Engineering, 2018

Coating materials in form of powder such as Magnesium Zirconate, Aluminum Bronze and Molybdenum w... more Coating materials in form of powder such as Magnesium Zirconate, Aluminum Bronze and Molybdenum were mixed in different portions and sprayed on steel specimen to find the fatigue properties of steel using plasma technique. The effect of coating mixture on the number of cycles needed for failure under different loads was done experimentally. A cyclic loading was applied to it repeatedly until failure occurs. The results were compared with those for the same specimen without coating. The results were then modelled using Artificial Intelligence Technique then optimized for maximum cycles of coated substance failure. The results showed significant improvement to the specimen’s resistance to failure with coating. Further, models were developed out of the experimental data and tested for accuracy and gave satisfactory results. However, the time consumed by the GA method was greater than that consumed by the same software for the ANN model development.Also, sensitivity analysis showed that...

International Review of Mechanical Engineering (IREME), 2020

Previous studies examining gasoline and hydrogen engines have typically focused on factors pertai... more Previous studies examining gasoline and hydrogen engines have typically focused on factors pertaining to air to fuel ratios, their effects on an ICE performance, combustion by-products produced during the ignition cycle and its subsequent environmental effects. Alternatively, this study examines the ways in which a hydrogen engine cavitation can be enhanced by using a graphene coated layer on the cylinder combustion chamber walls. SEM micrographs for the coated surfaces' microstructure showed a uniform distribution of the graphene layer that was free from cavities and demonstrating little to no observable defects. The study's results also showed large improvements in the BTE and exhaust temperature with respect to BMEP performance. This further resulted in significantly low levels harmful gaseous emissions, with observable reductions in the emissions of CO, NOx, and hydrocarbon derived from gasoline and pure hydrogen fuel. These results are thus indicative of a significant improvement in the performance of this particular typology of engine, in contrast to other experimentation focus found in other studies.