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In this research, two identical solar stills were designed and constructed to investigate the effect of adding copper and aluminum oxide nanoparticles on the quantity of water produced by solar desalination. The two solar stills were installed side by side, and measurements were recorded simultaneously from both stills. The nanoparticles were added to one still, each at one time but with different concentrations, while the other contained only water. Data acquisition and a weather station were used to record the glass, water, and ambient temperatures in addition to the hourly solar radiation. It was found that the addition of nanoparticles increases the amount of condensate. The most efficient concentrations were found to be 0.4% of Al2O3 and 0.6% of CuO. At these concentrations, an increase in the efficiency of the still equals 7.8%, and 9.62% was recorded. Furthermore, it was found that CuO has a more pronounced effect on the condensate than Al2O3 at all concentrations except at 0.4% concentration.
Mohammad Hamdan; Anas Al Momani; Osama Ayadi; Ahmad Sakhrieh; Francisco Manzano-Agugliaro. Enhancement of Solar Water Desalination Using Copper and Aluminum Oxide Nanoparticles. Water 2021, 13, 1914 .
AMA StyleMohammad Hamdan, Anas Al Momani, Osama Ayadi, Ahmad Sakhrieh, Francisco Manzano-Agugliaro. Enhancement of Solar Water Desalination Using Copper and Aluminum Oxide Nanoparticles. Water. 2021; 13 (14):1914.
Chicago/Turabian StyleMohammad Hamdan; Anas Al Momani; Osama Ayadi; Ahmad Sakhrieh; Francisco Manzano-Agugliaro. 2021. "Enhancement of Solar Water Desalination Using Copper and Aluminum Oxide Nanoparticles." Water 13, no. 14: 1914.
Ahmad Sakhrieh; Mohammad A. Hamdan; Mohammad Faisal Bani Ata. Air Quality Assessment and Forecasting Using Neural Network Model. Journal of Ecological Engineering 2021, 22, 1 -11.
AMA StyleAhmad Sakhrieh, Mohammad A. Hamdan, Mohammad Faisal Bani Ata. Air Quality Assessment and Forecasting Using Neural Network Model. Journal of Ecological Engineering. 2021; 22 (6):1-11.
Chicago/Turabian StyleAhmad Sakhrieh; Mohammad A. Hamdan; Mohammad Faisal Bani Ata. 2021. "Air Quality Assessment and Forecasting Using Neural Network Model." Journal of Ecological Engineering 22, no. 6: 1-11.
This work aims to assess the effect of using “Durathem G” as a liquid absorption fluid filter on the performance of PV cells since its spectral profile matches the spectral profile of silicon cells to a large extent. Also, it aims to evaluate the heat gained by the fluid and its potential to be employed in hybrid PV systems. The experiment was carried out by installing three identical 20 W PV modules. The first one was the standard panel without any modifications. The other two were modified using identical sheet-and-tube heat exchangers attached to the back surface of each panel as a cooling assembly and employing a thermal receiver above each panel with a 2-cm air gap in between. The effect of fluid layer thickness on the system performance was investigated by adopting two different thicknesses 5 and 8 mm. The main outcomes found that 5-mm filtered panel generates 87.3% of the electrical energy generated by the standard panel, while the 8-mm filtered panel generates only 71.8%. The 5-mm filtered panel was found to generate thermal energy gain of about 9.6 times its generated electrical energy, while the 8-mm filtered panel generates thermal energy gain of about 14.5 times its generated electrical energy.
Mohammad A. Hamdan; Eman M. AlQallab; Ahmad H. Sakhrieh. Potential of Solar Cells Performance Enhancement Using Liquid Absorption Filters. Iranian Journal of Science and Technology, Transactions of Mechanical Engineering 2018, 43, 383 -398.
AMA StyleMohammad A. Hamdan, Eman M. AlQallab, Ahmad H. Sakhrieh. Potential of Solar Cells Performance Enhancement Using Liquid Absorption Filters. Iranian Journal of Science and Technology, Transactions of Mechanical Engineering. 2018; 43 (S1):383-398.
Chicago/Turabian StyleMohammad A. Hamdan; Eman M. AlQallab; Ahmad H. Sakhrieh. 2018. "Potential of Solar Cells Performance Enhancement Using Liquid Absorption Filters." Iranian Journal of Science and Technology, Transactions of Mechanical Engineering 43, no. S1: 383-398.
This study aimed to design and implement a smart automatic cleaning and cooling system for photovoltaic modules to be activated based on power drop resulting from dust accumulation and high temperature conditions. This was tested by installing two side by side identical photovoltaic modules. The first module was equipped with the prototype cleaning system while the second one was considered as standard. An optimized cleaning and cooling procedure was adopted using data acquisition system. The operational performance of both panels was recorded and analyzed. An increase in energy yield of 8.7% was obtained as a result of minimizing the operational disturbances of dust accumulation and high surface temperature of the photovoltaic panel.
Layth Mohsin; Ahmad Sakhrieh; Ahmad Aboushi; Amer Hamdan; Eman Abdelhafez. Optimized cleaning and cooling for photovoltaic modules based on the output performance. Thermal Science 2018, 22, 237 -246.
AMA StyleLayth Mohsin, Ahmad Sakhrieh, Ahmad Aboushi, Amer Hamdan, Eman Abdelhafez. Optimized cleaning and cooling for photovoltaic modules based on the output performance. Thermal Science. 2018; 22 (1 Part A):237-246.
Chicago/Turabian StyleLayth Mohsin; Ahmad Sakhrieh; Ahmad Aboushi; Amer Hamdan; Eman Abdelhafez. 2018. "Optimized cleaning and cooling for photovoltaic modules based on the output performance." Thermal Science 22, no. 1 Part A: 237-246.
In this study, a developed two-dimensional mathematical model was used to represent the physical model of the combustion process of olive cake and date seed, and solve the governing equations using finite-volume method. The simulation was performed using ANSYS/Fluent software in order to estimate maximum temperature, heating values and pollutants concentrations. The obtained results were compared with experimental results, and corresponding values of oil shale and coal. The experimental work of direct burning of olive cake and date seeds was performed using an existing circulated fluidized bed (CFB) unit. It was found that the adiabatic flame temperatures were 1380 K and 839 K for olive cake and date seed, and 2260 K and 1080 K for coal and oil shale, respectively. The experimental results showed that the maximum temperatures were 1126 K and 723 K for olive cake and date seed, respectively. The lower heating values were 19,500 kJ/kg and 16,400 kJ/kg for olive cake and date seed, and 29,000 kJ/kg and 7000 kJ/kg for coal and oil shale, respectively. Thus, biomass such as date seed and olive cake may be used as an alternative fuel in electrical power plants in olive- or date-producing countries, which may save 40% of fuel cost.
Jamil J. Al Asfar; Ahmad AlShwawra; Ahmad Sakhrieh; Mohammad A. Hamdan. Combustion characteristics of solid waste biomass, oil shale, and coal. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2017, 40, 335 -342.
AMA StyleJamil J. Al Asfar, Ahmad AlShwawra, Ahmad Sakhrieh, Mohammad A. Hamdan. Combustion characteristics of solid waste biomass, oil shale, and coal. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2017; 40 (3):335-342.
Chicago/Turabian StyleJamil J. Al Asfar; Ahmad AlShwawra; Ahmad Sakhrieh; Mohammad A. Hamdan. 2017. "Combustion characteristics of solid waste biomass, oil shale, and coal." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 40, no. 3: 335-342.
Hakan F. Öztop; Ahmad Sakhrieh; Eiyad Abu-Nada; Khaled Al-Salem. Mixed convection of MHD flow in nanofluid filled and partially heated wavy walled lid-driven enclosure. International Communications in Heat and Mass Transfer 2017, 86, 42 -51.
AMA StyleHakan F. Öztop, Ahmad Sakhrieh, Eiyad Abu-Nada, Khaled Al-Salem. Mixed convection of MHD flow in nanofluid filled and partially heated wavy walled lid-driven enclosure. International Communications in Heat and Mass Transfer. 2017; 86 ():42-51.
Chicago/Turabian StyleHakan F. Öztop; Ahmad Sakhrieh; Eiyad Abu-Nada; Khaled Al-Salem. 2017. "Mixed convection of MHD flow in nanofluid filled and partially heated wavy walled lid-driven enclosure." International Communications in Heat and Mass Transfer 86, no. : 42-51.
Ahmad Sakhrieh; Ahmad Al-Hares; Fawaz Faqes; Adel Al Baqain; Nizar Alrafie. Optimization of oxyhydrogen gas flow rate as a supplementary fuel in compression ignition combustion enginess. International Journal of Heat and Technology 2017, 35, 116 -122.
AMA StyleAhmad Sakhrieh, Ahmad Al-Hares, Fawaz Faqes, Adel Al Baqain, Nizar Alrafie. Optimization of oxyhydrogen gas flow rate as a supplementary fuel in compression ignition combustion enginess. International Journal of Heat and Technology. 2017; 35 (1):116-122.
Chicago/Turabian StyleAhmad Sakhrieh; Ahmad Al-Hares; Fawaz Faqes; Adel Al Baqain; Nizar Alrafie. 2017. "Optimization of oxyhydrogen gas flow rate as a supplementary fuel in compression ignition combustion enginess." International Journal of Heat and Technology 35, no. 1: 116-122.
Organizations are spending large amounts of money on their energy consumption. The scarcity of energy resources, along with their price volatility, has become a major concern for all industries. Consequently, the need for managing and conserving energy has recently gained larger attention. A good management always pursues savings opportunities with minimum investments; hence, establishing an energy management system can provide the right approach to detect opportunities and sustain improvements. This article proposes the Lean Six Sigma energy management model (LSS_EnMS) based on the framework of International Organization for Standardization (ISO) 50001 for energy management, supported by the LSS approach define, measure, analyse, improve and control (DMAIC). The LSS_EnMS model applies the DMAIC approach to the energy management process in companies and incorporates the needed tools to define system requirements, analyse energy data, establish a systematic approach to identify energy opportunities and finally to guarantee sustainable system improvements. The model has shown the compatibility of Six Sigma approach with the ISO 50001 framework and has provided guidelines for effective system implementation. A prominent pharmaceutical company in Jordan was taken as a case study to show the significance of this model, and how this approach can lead to valuable and advantageous results in terms of real case application.
Leen G Mkhaimer; Mazen Arafeh; Ahmad Sakhrieh. Effective implementation of ISO 50001 energy management system. International Journal of Engineering Business Management 2017, 9, 1 .
AMA StyleLeen G Mkhaimer, Mazen Arafeh, Ahmad Sakhrieh. Effective implementation of ISO 50001 energy management system. International Journal of Engineering Business Management. 2017; 9 ():1.
Chicago/Turabian StyleLeen G Mkhaimer; Mazen Arafeh; Ahmad Sakhrieh. 2017. "Effective implementation of ISO 50001 energy management system." International Journal of Engineering Business Management 9, no. : 1.
Ahmad Sakhrieh; Y. Abdullat; M. A. Hamdan. Enhancement of Thermal Energy Storage Using Phase-Change Material under Jordanian Climate. Journal of Infrastructure Systems 2016, 22, 1 .
AMA StyleAhmad Sakhrieh, Y. Abdullat, M. A. Hamdan. Enhancement of Thermal Energy Storage Using Phase-Change Material under Jordanian Climate. Journal of Infrastructure Systems. 2016; 22 (4):1.
Chicago/Turabian StyleAhmad Sakhrieh; Y. Abdullat; M. A. Hamdan. 2016. "Enhancement of Thermal Energy Storage Using Phase-Change Material under Jordanian Climate." Journal of Infrastructure Systems 22, no. 4: 1.
A two-dimensional (2-D) modeling of the burning process of Jordanian oil shale in a circulating fluidized bed (CFB) burner was done in this study. The governing equations of continuity, momentum, energy, mass diffusion, and chemical combustion reactions kinetics were solved numerically using the finite volume method. The numerical solution was carried out using a high-resolution 2-D mesh to account for the solid and gaseous phases, k-ε turbulence, non-premixed combustion, and reacting CFD model with the same dimensions and materials of the experimental combustion burner used in this work. The temperature distribution and evolution of species were also computed. Proximate and ultimate analyses were also performed to evaluate the air–fuel ratio and ash content. The required thermophysical properties, such as heating value, density, and porosity were obtained experimentally, while the activation energy was obtained from published literature. It was found that the temperature contours of the combustion process showed that the adiabatic flame temperature was 1080 K in a vertical burner, while the obtained experimental results of maximum temperature at various locations of the burner in actual, non-adiabatic, non-stoichiometric combustion reached 950 K, showing good agreement with the model.
Jamil J. Al Asfar; Ahmad Hammad; Ahmad Sakhrieh; Mohammad A. Hamdan. Two-dimensional numerical modeling of combustion of Jordanian oil shale. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2016, 38, 1189 -1196.
AMA StyleJamil J. Al Asfar, Ahmad Hammad, Ahmad Sakhrieh, Mohammad A. Hamdan. Two-dimensional numerical modeling of combustion of Jordanian oil shale. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2016; 38 (9):1189-1196.
Chicago/Turabian StyleJamil J. Al Asfar; Ahmad Hammad; Ahmad Sakhrieh; Mohammad A. Hamdan. 2016. "Two-dimensional numerical modeling of combustion of Jordanian oil shale." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 38, no. 9: 1189-1196.
The Earth houses a vast energy supply in the form of geothermal resources. This energy can be used in several applications. In this work the potential of energy saving using geothermal energy in residential sector in Jordan was investigated. The use of geothermal energy for both domestic hot water and in HVAC systems was studied. Two types of geothermal heat exchangers were presented in this work; cast iron heat exchanger for HVAC systems and polyethylene for domestic hot water. Energy consumption can by reduced up to 30% by installing geothermal heat exchange
Abeer S. Abu Raed; Ahmad H. Sakhrieh. Energy Saving by the Means of Geothermal Energy. Journal of Clean Energy Technologies 2014, 243 -245.
AMA StyleAbeer S. Abu Raed, Ahmad H. Sakhrieh. Energy Saving by the Means of Geothermal Energy. Journal of Clean Energy Technologies. 2014; ():243-245.
Chicago/Turabian StyleAbeer S. Abu Raed; Ahmad H. Sakhrieh. 2014. "Energy Saving by the Means of Geothermal Energy." Journal of Clean Energy Technologies , no. : 243-245.
The use of biodiesel as fuel for compression ignition engines in Jordan is gaining more interest. This paper presents a comparative study on the use of new as well as waste oil as source for biodiesel fuel for compression ignition engine. The engine performance and emission characteristics were studied and compared with pure diesel fuel. The results showed that there was a loss in the fuel calorific value of about 13.43% for waste oil biodiesel and 7.24% for unused oil biodiesel. Further, the density of the fuel was found to increase by about 4.75% with respect to pure reference fuel. As for the performance, biodiesel showed improvement in the torque, power and thermal efficiency and reduction in the specific fuel consumption. This was achieved both as full and low load.
Jehad A. Yamin; Nina Sakhnini; Ahmad Sakhrieh; M.A. Hamdan. Environmental and performance study of a 4-Stroke CI engine powered with waste oil biodiesel. Sustainable Cities and Society 2013, 9, 32 -38.
AMA StyleJehad A. Yamin, Nina Sakhnini, Ahmad Sakhrieh, M.A. Hamdan. Environmental and performance study of a 4-Stroke CI engine powered with waste oil biodiesel. Sustainable Cities and Society. 2013; 9 ():32-38.
Chicago/Turabian StyleJehad A. Yamin; Nina Sakhnini; Ahmad Sakhrieh; M.A. Hamdan. 2013. "Environmental and performance study of a 4-Stroke CI engine powered with waste oil biodiesel." Sustainable Cities and Society 9, no. : 32-38.
A Jaber; L Zigan; Ahmad Sakhrieh; A Leipertz. Surface temperature measurements in a porous media burner using a new laser-induced phosphorescence intensity ratio technique. Measurement Science and Technology 2013, 24, 1 .
AMA StyleA Jaber, L Zigan, Ahmad Sakhrieh, A Leipertz. Surface temperature measurements in a porous media burner using a new laser-induced phosphorescence intensity ratio technique. Measurement Science and Technology. 2013; 24 (7):1.
Chicago/Turabian StyleA Jaber; L Zigan; Ahmad Sakhrieh; A Leipertz. 2013. "Surface temperature measurements in a porous media burner using a new laser-induced phosphorescence intensity ratio technique." Measurement Science and Technology 24, no. 7: 1.
Experimental investigation of overall performance, efficiency and reliability of five types of solar collectors is carried out. The systems involved in this study are blue and black coating-selective copper, copper, and aluminum collectors in addition to evacuated tubes collectors. The experiments were carried out during April under same conditions for all collectors. The sky was almost clear with an ambient temperature in the range 18–26 °C. Readings are collected daily from 8:00 am to 4:00 pm. The solar radiation intensity ranged from 154.0 to 1004.33 W/m2. Considering size of application, cost of appliance, quality and maintenance follow-up, results show that evacuated tube, blue and black coating-selective copper collectors are recommended for medium and large scale applications due to their long life, high efficiency ease of maintenance. Aluminum collectors are recommended for small applications like houses.
A. Sakhrieh; A. Al-Ghandoor. Experimental investigation of the performance of five types of solar collectors. Energy Conversion and Management 2013, 65, 715 -720.
AMA StyleA. Sakhrieh, A. Al-Ghandoor. Experimental investigation of the performance of five types of solar collectors. Energy Conversion and Management. 2013; 65 ():715-720.
Chicago/Turabian StyleA. Sakhrieh; A. Al-Ghandoor. 2013. "Experimental investigation of the performance of five types of solar collectors." Energy Conversion and Management 65, no. : 715-720.
Solar ponds are large-scale energy collectors with integral heat storage for supplying thermal energy. In the present work, both experimental and numerical parts of solar pond performance under Jordanian climate conditions have been investigated. In the experimental part, an insulated solar pond with a surface area of 3.5 m2 and a depth of 1.0 m was built at the University of Jordan to investigate the performance of solar pond under Jordanian climate conditions. The three salty water zones (upper convective, non-convective and heat storage) were formed by filling the pond with salty water of various densities. 16 thermocouples (type T) were used to measure the temperature profile within the pond. In the theoretical part, a MatLAB code was developed to predict the temperature distribution along the solar pond. A maximum temperature of 47 °C was recorded in the heat storage zone in spring time (April 2010). The results obtained from the numerical simulation are compared with the experimental results and it has been found that they are in a good agreement.
Ahmad Sakhrieh; A. Al-Salaymeh. Experimental and numerical investigations of salt gradient solar pond under Jordanian climate conditions. Energy Conversion and Management 2013, 65, 725 -728.
AMA StyleAhmad Sakhrieh, A. Al-Salaymeh. Experimental and numerical investigations of salt gradient solar pond under Jordanian climate conditions. Energy Conversion and Management. 2013; 65 ():725-728.
Chicago/Turabian StyleAhmad Sakhrieh; A. Al-Salaymeh. 2013. "Experimental and numerical investigations of salt gradient solar pond under Jordanian climate conditions." Energy Conversion and Management 65, no. : 725-728.
In this paper, the potential of utilizing a solar cooling system to improve the indoor air quality is investigated. The analysis is performed for a 41 m2 with a 3.65 m height laboratory located at Mango Center for Scientific Research – University of Jordan in Amman. The hourly ambient temperatures and the monthly solar radiation in Amman are recorded. The calculations of the cooling demand were done using two methods, i.e. manual calculations and block load software. For the analysis, the internal loads of lightning, computer, etc. and the building envelope (e.g. double glass, no shading) were considered. The results show that proposed solar collectors of 40 m2 area can provide solar heat for an 8 kW solar air-conditioning system. Moreover, domestic hot water (solar fraction up to 100%) and solar heating (approx. 15–25% solar fraction) could be also provided, with the solar air-conditioning system, for the centre. An economic study was also carried, which showed that the estimated payback period of the solar cooling system, exceeds that of project life time of the project, which is assumed to be 24 years unless the government of Jordan issues a new law for renewable energy that grants incentives, exemptions and subsidizes projects that invest in solar energy applications by about 40% of initial investment cost of the system.
A. Fasfous; J. Asfar; A. Al-Salaymeh; A. Sakhrieh; Z. Al_Hamamre; A. Al-Bawwab; M. Hamdan. Potential of utilizing solar cooling in The University of Jordan. Energy Conversion and Management 2013, 65, 729 -735.
AMA StyleA. Fasfous, J. Asfar, A. Al-Salaymeh, A. Sakhrieh, Z. Al_Hamamre, A. Al-Bawwab, M. Hamdan. Potential of utilizing solar cooling in The University of Jordan. Energy Conversion and Management. 2013; 65 ():729-735.
Chicago/Turabian StyleA. Fasfous; J. Asfar; A. Al-Salaymeh; A. Sakhrieh; Z. Al_Hamamre; A. Al-Bawwab; M. Hamdan. 2013. "Potential of utilizing solar cooling in The University of Jordan." Energy Conversion and Management 65, no. : 729-735.
This study presents a comparative energy and emissions analysis of 15 Arab countries. The relation between energy consumption, CO
Ismael Al Hinti; Ahmed Al Ghandoor; Ahmad Sakhrieh; Bilal Akash; Eiyad Abu Nada. A comparative analysis of energy indicators and CO2 emissions in 15 Arab countries. International Journal of Environment and Waste Management 2013, 11, 129 .
AMA StyleIsmael Al Hinti, Ahmed Al Ghandoor, Ahmad Sakhrieh, Bilal Akash, Eiyad Abu Nada. A comparative analysis of energy indicators and CO2 emissions in 15 Arab countries. International Journal of Environment and Waste Management. 2013; 11 (2):129.
Chicago/Turabian StyleIsmael Al Hinti; Ahmed Al Ghandoor; Ahmad Sakhrieh; Bilal Akash; Eiyad Abu Nada. 2013. "A comparative analysis of energy indicators and CO2 emissions in 15 Arab countries." International Journal of Environment and Waste Management 11, no. 2: 129.
In this study a simple low-cost exhaust gas after-treatment filter using limestone was developed and tested on a four cylinder DI diesel engine coupled with dynamometer under variable engine running conditions. Limestone was placed in cast iron housing through which exhaust gases passes. The concentration of both carbon dioxide and nitrogen oxides were measured with and without the filter in place. It was found that both pollutants were decreased significantly when the filter is in place, with no increase in the fuel consumption rate
Ahmad Sakhrieh. Experimental study on exhaust gas after treatment using limestone. Thermal Science 2013, 17, 49 -56.
AMA StyleAhmad Sakhrieh. Experimental study on exhaust gas after treatment using limestone. Thermal Science. 2013; 17 (1):49-56.
Chicago/Turabian StyleAhmad Sakhrieh. 2013. "Experimental study on exhaust gas after treatment using limestone." Thermal Science 17, no. 1: 49-56.
Ahmed Al-Salaymeh; Mohammad Al-Saad; Ahmad Sakhrieh. Preface. Sustainable Cities and Society 2012, 5, 1 .
AMA StyleAhmed Al-Salaymeh, Mohammad Al-Saad, Ahmad Sakhrieh. Preface. Sustainable Cities and Society. 2012; 5 ():1.
Chicago/Turabian StyleAhmed Al-Salaymeh; Mohammad Al-Saad; Ahmad Sakhrieh. 2012. "Preface." Sustainable Cities and Society 5, no. : 1.
Ahmad Sakhrieh; Mohammed Hamdan. A study on the Jordanian oil shale resources and utilization. PROCEEDINGS OF THE SIXTH GLOBAL CONFERENCE ON POWER CONTROL AND OPTIMIZATION 2012, 145 -150.
AMA StyleAhmad Sakhrieh, Mohammed Hamdan. A study on the Jordanian oil shale resources and utilization. PROCEEDINGS OF THE SIXTH GLOBAL CONFERENCE ON POWER CONTROL AND OPTIMIZATION. 2012; ():145-150.
Chicago/Turabian StyleAhmad Sakhrieh; Mohammed Hamdan. 2012. "A study on the Jordanian oil shale resources and utilization." PROCEEDINGS OF THE SIXTH GLOBAL CONFERENCE ON POWER CONTROL AND OPTIMIZATION , no. : 145-150.