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Radwan A. Almasri graduated from Mechanical Engineering college, Aleppo University, Syria in 1982. Between 1983-1988, he completed Ph.D. at Thermodynamics Department, College of Mechanical Engineering, Technical University, Chemnitz, Germany. Moreover, he completed Habilitation from the same Department in 2019. He is currently working as a Professor at Qassim University. His research interest includes energy efficiency and solar energy applications.
Global warming has risen as a primary global concern. It has stimulated interest in the development of the renewable energy (RE) system. Studies demonstrated that the regions of Gulf Corporation Council (GCC) such as Bahrain, Kuwait, Oman, Qatar, Kingdom Saudi Arabia (KSA), and United Arab Emirates (UAE) face several changes in the form of uncertain weather conditions. Given the strategic location of the Gulf States and its enormous oil and natural resource, it is characterized to hold potential for using renewable energies such as solar, wind, and geothermal energy for meeting the power production needs. Previous studies suggested that energy consumptions such as crude oil and fossil fuels are the major sources of providing economic benefits to the states. The high oil price, deterioration of the financial markets, and incident of Arab Spring has shifted the working at a national and international level, making it important in using RE resources to generate excessive energy. The primary focus was to explore the scope of energy efficiency (EE) and the use of solar, wind and geothermal energy resources given their proliferation potential for the GCC region. The review assessed the energy and electricity consumption trends in the region. Also, it discussed the problems related to the effects of dust accumulation on devices. Moreover, it also highlighted the use of various computer interfaces that demonstrate the feasibility to use various RE technologies. Further, it draws conclusions and recommendations based on the issues. Abbreviation: A/CAir Conditioning AGHE Air-Ground Heat Exchanger CF capacity factor CPVC oncentrated Photovoltaic CSP Concentrated Solar power DHI Diffuse Horizontal Irradiance DNI Direct Normal Irradiance DEWA Dubai Electricity and Water Authority EE energy efficiency EER energy efficiency ratio GHI Global Horizontal Irradiance GHE Ground Heat Exchanger GSHPs Ground Source Heat Pump system GCC Gulf Corporation Council ISCC Integrated Solar Combined Cycle IRENA International Renewable Energy Agency KAUST King Abdullah University of Science and Technology KSA Kingdom Saudi Arabia MPPT Maximum power point tracking NPV net present value OECD Organization for Economic Co-operation and Development PV photovoltaic PV/T photovoltaic/therma lR Erenewable energy RC RANKEN cycle SWH solar water heater SWOT strength, weakness, opportunity, and threat TOU Time-of use TPES Total primary energy supply UAE United Arab Emirates VAV Variable Air Volume VGSHPs Vertical Ground Source Heat Pump system
Radwan A. Almasri; S. Narayan. A recent review of energy efficiency and renewable energy in the Gulf Cooperation Council (GCC) region. International Journal of Green Energy 2021, 1 -28.
AMA StyleRadwan A. Almasri, S. Narayan. A recent review of energy efficiency and renewable energy in the Gulf Cooperation Council (GCC) region. International Journal of Green Energy. 2021; ():1-28.
Chicago/Turabian StyleRadwan A. Almasri; S. Narayan. 2021. "A recent review of energy efficiency and renewable energy in the Gulf Cooperation Council (GCC) region." International Journal of Green Energy , no. : 1-28.
Conventional energy consumption in refrigeration is one of the important reasons in global warming. Solar cooling systems are becoming more compact, having lower costs, and are potential alternative technologies, especially in hot and sunny climates. The adsorption, absorption, and dissociative evaporative cooling (DEC) are the technologies used for sorption machines, which are discussed in this review paper. Various multi-criteria performance indicators appearing in the previous studies are discussed, followed by evaluating the benefits and drawbacks of distinguishing sorption solar thermal cooling systems. Market research is conducted to prove the capacity of these technologies. The review shows that compared to other technologies, the solar absorption system is more efficient, so it is very commonly used for cooling applications in various locations. An important topic was also presented using phase change materials and nanofluids in solar sorption systems, that need more research. It is noted from this that most solar cooling systems are hybrid in terms of source and there are multiple applications (cooling - heating and electricity generation). The software packages to study these systems are introduced. Further research is required on desiccant materials that can be regenerated under lower temperatures that would augment the extent of solar desiccant cooling application.
Radwan A. Almasri; Nidal H. Abu-Hamdeh; Khaled Khodary Esmaeil; S. Suyambazhahan. Thermal solar sorption cooling systems - A review of principle, technology, and applications. Alexandria Engineering Journal 2021, 61, 367 -402.
AMA StyleRadwan A. Almasri, Nidal H. Abu-Hamdeh, Khaled Khodary Esmaeil, S. Suyambazhahan. Thermal solar sorption cooling systems - A review of principle, technology, and applications. Alexandria Engineering Journal. 2021; 61 (1):367-402.
Chicago/Turabian StyleRadwan A. Almasri; Nidal H. Abu-Hamdeh; Khaled Khodary Esmaeil; S. Suyambazhahan. 2021. "Thermal solar sorption cooling systems - A review of principle, technology, and applications." Alexandria Engineering Journal 61, no. 1: 367-402.
The demand for air conditioning is increasing day by day in the world’s hot and humid climate areas. Energy conservation in buildings can play a vital role in meeting this high cooling demand. This paper attempts to consider the impacts of energy efficiency and renewable energy measures on the energy demand of Saudi Arabia’s residential buildings. The energy analysis and economic feasibility analysis of thermal insulations are performed in this paper by investigating the effect of residential buildings’ thermal insulations on the economic feasibility of grid-connected photovoltaic systems. This was the combined effort of building owners and government, and buildings were examined if a photovoltaic system and thermal insulation were used. The study was conducted in the three climate zones in Saudi Arabia. The results showed that the building base case’s annual electrical energy consumption in Riyadh city was 67,095 kWh, Hail 57,373 kWh, and Abha 26,799 kWh. For the basic case-building in Riyadh, 69% of the total electrical energy was used for cooling and heating. Applying the Saudi Building Code requirement for Riyadh will provide only 18% of the total energy used for cooling and heating. RETScreen 6.1 software was used to design a photovoltaic system; the analysis was done using technical and economic indicators. The annual yield factor for Riyadh, Hail, and Abha was 1649 kWh/kWp/year, 1711 kWh/kWp/year, and 1765 kWh/kWp/year, respectively. The capacity factors for Riyadh, Hail, and Abha were 18.8%, 19.5%, and 20.1%, respectively. The Unified photovoltaic Levelized energy costs were 0.031, 0.030, and 0.029 $/kWh for Riyadh, Hail, and Abha, respectively. Finally, the Net Present Value and greenhouse gas emissions reduction have been estimated.
Radwan Almasri; Abdullah Alardhi; Saad Dilshad. Investigating the Impact of Integration the Saudi Code of Energy Conservation with the Solar PV Systems in Residential Buildings. Sustainability 2021, 13, 3384 .
AMA StyleRadwan Almasri, Abdullah Alardhi, Saad Dilshad. Investigating the Impact of Integration the Saudi Code of Energy Conservation with the Solar PV Systems in Residential Buildings. Sustainability. 2021; 13 (6):3384.
Chicago/Turabian StyleRadwan Almasri; Abdullah Alardhi; Saad Dilshad. 2021. "Investigating the Impact of Integration the Saudi Code of Energy Conservation with the Solar PV Systems in Residential Buildings." Sustainability 13, no. 6: 3384.
Lately, with the growth in energy consumption worldwide to support global efforts to improve the climate, developing nations have to take significant measures. Kingdom of Saudi Arabia (KSA) implemented meaningful policy actions towards promoting energy efficiency (EE) in several sectors, especially in the building sector, to be more sustainable. In this paper, various EE measures and solar energy prospects are investigated for the residential sector, in two locations in the middle region of the KSA. An energy performance analysis of pre-existing residential buildings with an overall design is performed using simulation programs. However, installing EE measures in the building envelope is important to achieve an efficient sector regarding its energy consumption. The findings showed that applying EE measures for the building envelope, walls, roof, and windows should be considered first that makes the energy conservation possible. In Riyadh, EE measures are responsible for reducing energy consumption by 27% for walls, 14% for roof, and 6% for window, and by 29%, 13%, and 6% for walls, roof, and windows, respectively, for Qassim. However, the most impactful EE solution was selecting a heating, ventilation, and air conditioning (HVAC) system with a high energy efficiency rate (EER), which can minimize the energy consumption by 33% and 32% for Riyadh and Qassim, respectively. The study's feasibility showed that the number of years needed to offset the initial investment for a proposed roof PV system exceeds the project's life, if the energy produced is exported to the grid at the official export tariff of 0.019 $/kWh. However, the simple payback time was 13.42 years if the energy produced is exported to the grid at a rate of 0.048 $/kWh, reflecting the project's economic feasibility.
Abdulrahman S Almushaikah; Radwan A Almasri. Evaluating the potential energy savings of residential buildings and utilizing solar energy in the middle region of Saudi Arabia – Case study. Energy Exploration & Exploitation 2020, 1 .
AMA StyleAbdulrahman S Almushaikah, Radwan A Almasri. Evaluating the potential energy savings of residential buildings and utilizing solar energy in the middle region of Saudi Arabia – Case study. Energy Exploration & Exploitation. 2020; ():1.
Chicago/Turabian StyleAbdulrahman S Almushaikah; Radwan A Almasri. 2020. "Evaluating the potential energy savings of residential buildings and utilizing solar energy in the middle region of Saudi Arabia – Case study." Energy Exploration & Exploitation , no. : 1.
The Kingdom of Saudi Arabia (KSA) is considered one of the countries with the highest consumption of electric energy per capita. Moreover, during the period of 2007–2017, the consumption rate increased from 6.9 MWh to 9.6 MWh. On the other hand, the share of residential electricity consumption in the KSA constitutes the biggest portion of the total electric consumption, which was about 48% in 2017. The objectives of this work were to analyze the exergy and assess the economic and environmental impacts of energy consumption in the residential sector of the Qassim region to determine potential areas for energy rationalization. The consumption patterns of 100 surveyed dwellings were analyzed to establish energy consumption indicators and conduct exergy analysis. The performances of different consuming domestic items were also examined, and energy efficiency measures are proposed. The average yearly consumption per dwelling was determined, and the total energy and exergy efficiencies are 145% and 11.38%, respectively. The average shares of lighting, domestic appliances, water heaters, and air conditioning from the total yearly energy consumption were determined.
Radwan A. Almasri; A. F. Almarshoud; Hanafy M. Omar; Khaled Khodary Esmaeil; Mohammed Alshitawi. Exergy and Economic Analysis of Energy Consumption in the Residential Sector of the Qassim Region in the Kingdom of Saudi Arabia. Sustainability 2020, 12, 2606 .
AMA StyleRadwan A. Almasri, A. F. Almarshoud, Hanafy M. Omar, Khaled Khodary Esmaeil, Mohammed Alshitawi. Exergy and Economic Analysis of Energy Consumption in the Residential Sector of the Qassim Region in the Kingdom of Saudi Arabia. Sustainability. 2020; 12 (7):2606.
Chicago/Turabian StyleRadwan A. Almasri; A. F. Almarshoud; Hanafy M. Omar; Khaled Khodary Esmaeil; Mohammed Alshitawi. 2020. "Exergy and Economic Analysis of Energy Consumption in the Residential Sector of the Qassim Region in the Kingdom of Saudi Arabia." Sustainability 12, no. 7: 2606.
Mixed convection heat transfer characteristics from heat source located symmetrically inside square enclosure and cooled by Al2O3/water-based nanofluid flow was experimentally investigated. The configuration was subjected to high levels of natural convection and low rates of nanofluid flow. The nanofluid thermophysical properties were characterized using the available correlations in the literatures except the viscosity which was measured and correlated in terms of the nanoparticles loading ratios. Comparative analysis indicated that the application of nanofluid could not guarantee heat transfer enhancement in configurations dominated by natural convection. Exception heat transfer enhancement was only found when very low nanoparticles loading ratio was applied. Instead, heat transfer degradation was found especially in the cases of highest nanoparticles loading ratios. Alternatively, heat transfer enhancement was observed when the forced convection effect was substantial at the highest nanofluid flow rate. The present conclusions were justified and correlated to the findings reported in the literature.
Khaled Khodary Esmaeil; Gamal I. Sultan; Fahad A. Al-Mufadi; Radwan A. Almasri. Experimental Heat Transfer From Heating Source Subjected to Rigorous Natural Convection Inside Enclosure and Cooled by Forced Nanofluid Flow. Journal of Heat Transfer 2019, 141, 072501 .
AMA StyleKhaled Khodary Esmaeil, Gamal I. Sultan, Fahad A. Al-Mufadi, Radwan A. Almasri. Experimental Heat Transfer From Heating Source Subjected to Rigorous Natural Convection Inside Enclosure and Cooled by Forced Nanofluid Flow. Journal of Heat Transfer. 2019; 141 (7):072501.
Chicago/Turabian StyleKhaled Khodary Esmaeil; Gamal I. Sultan; Fahad A. Al-Mufadi; Radwan A. Almasri. 2019. "Experimental Heat Transfer From Heating Source Subjected to Rigorous Natural Convection Inside Enclosure and Cooled by Forced Nanofluid Flow." Journal of Heat Transfer 141, no. 7: 072501.