Tareq a hamed

A two-phase aqueous-organic system was used to degrade benzene, toluene and phenol, individually and as mixture by Pseudomonas putida F1 (ATCC 700007). In the first stage of the work, the effect of the phase ratio (0–1, v/v) and the agitation rate (150 and 200 rpm) on the biodegradation process was investigated in an orbital shaker using 2-undecano...

Benzene, toluene and phenol were degraded completely at high initial concentrations by Pseudomonas putida F1 ATCC 700007. Two hundred and fifty milligram per litre benzene, 225 mg/l toluene and 200 mg/l phenol were degraded individually in 19, 14 and 35 h, respectively. The biodegradation times increased on increasing the substrate concentration. T...

The Palestinian Territories relies on Israel for 100% of its fossil fuel imports and for 87% of its electricity imports. Total energy consumption in the Palestinian Territories is the lowest in the region and costs more than anywhere else in the Middle East. The purpose of this paper is to present the current energy situation in the Palestinian Ter...

Hydrolysis of Zn is investigated as the second step in a ZnO/Zn redox solar water splitting process. Zinc is evaporated and hydrolyzed with steam in a hot wall flow tubular reactor. The influence of the reactor temperature distribution and residence time on hydrogen conversion was measured for furnace set point temperatures of 1023 K and 1073 K. Th...

The synthesis and hydrolysis of zinc nanoparticles are carried out in a tubular reactor. A key component of the reactor is a coaxial jet quench device. Three co-axial and multi-inlet confined jets mix Zn(g), steam and argon to produce and hydrolyze zinc nanoparticles. The performance of the quench device is assessed with computational fluid dynamic...

The social acceptance of renewable energy policies and technologies is crucial in the era of the renewable energy transition. Yet, more is needed to know about Israel's transition. One thousand five hundred Israeli citizens were engaged through a survey to examine their perceptions of climate change and awareness regarding renewable energy technolo...

Countries of the Eastern Mediterranean and Middle East region are far off the trajectory required to stabilise the global climate. Being responsible for about threequarters of greenhouse gas emissions, the energy system has to bear most of the burden of the decarbonisation effort. In such a context, this report identifies three pillars that need im...

Purpose: The study discusses COVID-19’s short-term impact on Israel’s renewable energy start-up sector from March to July 2020. Results and contributions: The interviewed companies were experiencing supply chain disruption, logistical issues, and restrictions in work access, all of which negatively impacted business operations. Moreover, companies...

Water is becoming scarcer. The unmonitored control and the extensive use of fossil fuel in water-table pumping for irrigation exacerbate global warming and harm the environment. Along with the rapid population growth and the concomitant increase in the demand for food, optimal usage of water-table and energy is becoming a must and indispensable for...

The world’s rural population surpasses the three billion people mainly located in Africa and Asia; roughly half the global population lives in the countryside. Access to modern fuels is a challenge for rural people compared to their urban counterparts, which can easily access infrastructures and commercial energy. In developing countries rural popu...

By applying a phase model for the renewables-based energy transition in the MENA countries to Israel, the study provides a guiding vision to support the strategy development and steering of the energy transition process. The transition towards a renewable-based energy system can reduce import dependencies and increase the energy security in Israel....

The intensity and duration of hot weather and the number of extreme weather events, such as heatwaves, are increasing, leading to a growing need for space cooling energy demand. Together with the building stock’s low energy performance, this phenomenon may also increase households’ energy consumption. On the other hand, the low level of ownership o...

The global energy demand is growing substantially. Clean and secure energy supply is a must for our civilization's sustainable development. Solar and wind energy is growing fast and can contribute significantly to meet the goals set by many countries to reduce greenhouse gas emissions. A deep and wide investigation of the environmental impact of so...

Energy poverty is the inability of people to have an adequate access to energy sources. It is complex and multi-dimensional problem. This paper examines both the prospects and constraints that exist in the integration of renewable energy systems that would aid in reducing poverty and promote sustainability in Palestine. Both energy and fuel poverty...

Extreme energy poverty results from a mix of conditions including lack of access to a reliable and affordable grid-based energy source that meets basic domestic needs. In this paper, we focus on two communities that face multiple complications regarding modern energy and housing infrastructure: Roma neighborhoods in Romania and Bedouin villages in...

Evacuated tube solar air heaters (ETSH) are efficient, easy to maintain, and have low energy losses due to the vacuum between the absorber and the outer tubes. In this study, a new ETSH with various configurations was built and experimentally tested to determine the best configuration with the highest thermal performance. The ETSH equipped with two...

Israel's Southern Arava region has experienced a boom in solar infrastructure development since 2011. Public acceptance of renewable energy installations is key to their successful implementation. The objective of this paper is to understand the level of acceptance of solar installations among Southern Arava communities and identify the factors tha...

The heuristic multi-level perspective framework (MLP) is applied here to explore the innovation process and determinants of adoption and diffusion of an individual project. Drawing on insights from this explanatory and integrative framework, we benefit from an in-depth examination into drivers and barriers to biogas technology. We retrospectively i...

The usage of renewable energy sources increases the energy security because it brings extensive socio-economic benefits to Israeli and Jordanian populations, added pathways for bilateral cooperation and allows countries to achieve their climate mitigation goals. Israel and Jordan's energy mix are both dominated by fossil fuel usage and produce only...

The efficiency of photovoltaic modules depends mainly on the cell operating temperatures. Performance enhancement of building-integrated photovoltaic (BIPV) panels by passive cooling has been investigated both experimentally and with computational modeling. It has been shown that mounting the BIPV with a narrow channel can reduce the operating temp...

Photovoltaics is amongst the most important technologies for renewable energy sources, and plays a key role in the development of a society with a smaller environmental footprint. Key parameters for solar cells are their energy conversion efficiency, their operating lifetime, and the cost of the energy obtained from a photovoltaic system compared t...

Off-grid energy systems are the main electricity source in rural Bedouin villages in the Negev. Due to the need for electricity, Bedouin households took upon themselves the responsibility of buying and installing photovoltaic (PV) systems. This study is the first of its kind to present data on energy poverty and installed PV systems at the recogniz...

Off-grid energy systems are the main electricity source in rural Bedouin villages in the Negev. Due to the need for electricity, Bedouin households took upon themselves the responsibility of buying and installing photovoltaic (PV) systems. This study is the first of its kind to present data on energy poverty and installed PV systems at the recogniz...

Palestine faces considerable challenges relating to its energy supply, which is reflected in its dependency on imported electricity and fuels. This makes it vulnerable to changing political and economic situations and emphasises the urgent need to search for alternative and sustainable sources of energy from within Palestine itself. This study expl...

This study examines the kinetics of boron hydrolysis. The boron hydrolysis reaction is classified as a noncatalytic heterogeneous reaction. It was found the steam rapidly hydrolyzes the boron, forming an oxide ash layer that then also reacts with the steam, forms gaseous boric acid, and re-exposes the boron substrate to steam. Additionally, the thi...

Hydrolysis of boron is investigated as a part of a boron/boron oxide solar water splitting-thermochemical cycle. Boron was hydrolyzed and boron oxide was gasified with steam in a tubular reactor. The effects of the reactor temperature and water flow rate on hydrogen production and boron oxide gasification were studied at different furnace set point...

The cometabolic degradation of trichloroethylene (TCE) by Pseudomonas putida F1 (strain ATCC 700007) at different concentrations was studied in single- and two-phase systems using 2-undecanone as the second organic phase. Toluene vapors were used as the primary growth substrate for Pseudomonas putida F1. The effects of the biomass concentration and...

Hydrolysis of boron is investigated as a part of a boron/boron oxide solar, water-splitting, thermochemical cycle. Boron was hydrolysed and boron oxide was gasified with steam in a tubular reactor. The influence of the reactor temperature and time on hydrogen conversion was measured at furnace set point temperatures of 873, 973 and 1073 K. The hydr...

Boron hydrolysis reaction can be used for onboard production of hydrogen. Boron is a promising candidate because of its low mo- lecular weight and relatively high valence. The oxide product from this process can be reduced and the boron can be recovered using known technologies, e.g., chemically with magnesium or via elec- trolysis. In both routes...

Boron has been proposed as a candidate for hydrogen production. In this study a process is described in which boron is used as a means to store and transport solar energy from a production site to motor vehicles, where it is used to generate hydrogen and heat. The proposed multi-step fuel cycle includes no carbon as a reducing agent and, therefore,...

Hydrolysis of Zn is investigated as the second step in a ZnO/Zn redox solar water splitting process. Zinc is evaporated and hydrolyzed in a hot wall flow tubular reactor. The design of the reactor was suggested by prior studies at ETH-Swiss Federal Institute in which simultaneous synthesis of hydrogen and zinc oxide nanoparticles was the goal. The...

Simultaneous synthesis and hydrolysis of Zn nanoparticles was studied as the second step in a ZnO/Zn redox solar water splitting process. Nanoparticles were synthesized and hydrolyzed in a condensation nucleation process using a mixture of argon and steam to quench zinc evaporated in a hot wall tubular reactor. Hydrogen production was attributed to...