Combined Heat and Power Systems

Combined Heat and Power (CHP), or Cogeneration, is the sequential or simultaneous generation of multiple forms of useful energy (usually mechanical and thermal) in a single, integrated system. In conventional electricity generation systems, about 35% of the energy potential contained in the fuel is converted on average into electricity, whilst the rest is lost as waste heat. CHP systems uses both electricity and heat and therefore can achieve an efficiency of up to 90%, giving energy savings between 15-40% when compared with the separate production of electricity from conventional power stations and of heat from boilers. CHP systems consist of … Continue reading

Jatropha’s Relevance for MENA

Jatropha is a genus of nearly 175 species of shrubs, low-growing plants, and trees.  However, discussions of Jatropha as a biodiesel are actually means a particular species of the plant, Jatropha curcas. The plant is indigenous to parts of Central America, however it has spread to other tropical and subtropical regions in Africa and Asia. Jatropha curcas is a perennial shrub that, on average, grows approximately three to five meters in height. It has smooth grey bark with large and pale green leaves. The plant produces flowers and fruits are produced in winter or throughout the year depending on temperature … Continue reading

Energy Management in the Middle East

Managing and reducing energy consumption not only saves money but also helps in mitigating climate change and enhancing corporate reputation. The primary objective of energy management is to achieve and maintain optimum energy procurement and utilisation, throughout the organisation which may help in minimizing energy costs and mitigating environmental effects. Infact, energy management is widely acknowledged as the best solution for direct and immediate reduction of energy consumption. Importance of Energy Management Energy should be regarded as a business cost, like raw material or labour. Companies can achieve substantial reduction in energy bills by implementing simple housekeeping measures. Reduction and control of energy usage … Continue reading

Waste Management Perspectives for Saudi Arabia

Solid waste management is a big challenge for the government and local authorities in the Kingdom of Saudi Arabia. The country generates more than 15 million tons of municipal waste each year with vast majority diverted to landfills and dumpsites. Recycling, reuse and energy recovery is still at an early stage, although they are getting increased attention. Recycling rate ranges from 10-15%, mainly due to the existence of the informal sector which extracts recyclables from municipal waste stream. Waste management issues in the Kingdom can be resolved by creating a healthy general environment specifically targeting the waste sector which may … Continue reading

إدارة النفايات الصلبة في المملكة العربية السعودية

تشهد المملكة العربية السعودية طفرة صناعية وزيادة في النمو السكاني وزيادة في عدد المدن الجديدة، مما أدى الي زيادة في معدلات التلوث والنفايات. أصبحت إدارة النفايات الصلبة تشكل تحدياً كبيراً يومياً للحكومة. مع تعداد سكاني يقارب الـ 29 مليون نسمة، تنتج السعودية أكثر من 15 مليون طن نفايات صلبة سنوياً. والمعدل التقديري لنصيب الفرد يومياً في انتاج النفايات 1.5 – 1.8 كج. معدل النفايات الصلبة للمدن الثلاث الكبرى – الرياض، جدة، الدمام – تزيد على 6 مليون طن في السنة، مما يعطي تصوراً عن حجم المشكلة التي تواجهها. أكثر من 75% من السكان يسكنون المناطق الحضريه، مما يوجب على الحكومة … Continue reading

Sustainability Principles in Traditional Islamic Architecture

Islam came with many sustainability and environmental conservation principles, which appeared in all aspects of the Islamic society. This green vision of Islam is also reflected in the city planning and traditional architecture. Infact, Islamic cities were shaped by Islamic beliefs on environmental conservation and sustainability. The traditional house adopted in Islamic architecture respects the environment in more ways than one: first by minimizing the impact of harsh natural environment conditions such as hot climate, relative humidity and solar radiation intensity, second by maximizing the potential possibilities of these conditions to achieve the thermal comfort of inhabitants and utilizing the … Continue reading

Towards a Green Hajj

Despite the spiritual perfection of the rites of the Hajj pilgrimage, there are some deep issues with its practical implementation. In a journey where one is meant to recalibrate one's consciousness of the one true Creator, it seems paradoxical that such an excursion should lead to environmental harm (or destruction). Why is it then that I walk the street of the Haram (sacred land) and find them littered with boxes of chicken and rice, strewn on the curb in front of beggars who offer to pray for you in exchange of spare change? Deluge of Waste In 7:31, the Holy … Continue reading

Renewable Energy in the Middle East

The Middle East energy sector has played and will continue to play an important role in the regional as well as global economy. The oil and gas sector is the largest economic sector in the region. In addition to satisfying energy needs for economic and social development, it is the source of oil and gas export revenues contributing to economic development. Regional countries are heavily dependent on oil and gas to meet their domestic energy demand. Oil contributes more than half of the total energy demand in the Middle East while the rest is contributed by natural gas. Widespread use … Continue reading

Food Wastes Disposal Methods

Food waste is one of the most prominent waste streams across Middle East, especially in GCC region.  The mushrooming of hotels, restaurants, fast-food joints and cafeterias in the Middle East region has resulted in the generation of huge quantities of food wastes. The proportion of food waste in municipal waste stream is gradually increasing and hence a proper food waste management strategy needs to be devised to ensure its eco-friendly and sustainable disposal in the Middle East.  Food waste is an untapped energy source that mostly ends up rotting in landfills, thereby releasing greenhouse gases into the atmosphere. Food waste includes organic … Continue reading

Organic Industrial Wastes in the Middle East

Organic industrial waste includes a wide range of organic materials obtained from industrial and commercial operation. Industries in Middle East countries produces a large number of organic residues and by-products whose disposal is a major problem for stake-holders. In recent decades, the fast-growing food and beverage processing industry has remarkably increased in importance in major countries of the Middle East. Since the early 1990s, the increased agricultural output stimulated an increase in fruit and vegetable canning as well as juice, beverage, and oil processing in countries like Egypt, Syria, Lebanon and Saudi Arabia. There are many technologically-advanced dairy products, bakery … Continue reading

Recycling of E-Waste in GCC: Challenges and Opportunities

The growing amount of e-waste is gaining more and more attention on the global agenda. In 2017, e-waste production is expected to reach up to 48 million metric tons worldwide. The biggest contributors to this volume are highly developed nations, with the top three places of this inglorious ranking going to Norway, Switzerland and Iceland. In Norway, each inhabitant produces a massive 28.3 kg of e-waste every year. Not far behind the top ten of this ranking lie GCC member states, with both Kuwait and UAE producing each 17.2 kg e-waste per capita per year. Saudi Arabia with its many … Continue reading

Recycling Prospects in Saudi Arabia

The concept of waste recycling has been getting increasing attention in Saudi Arabia in recent years. The country produces around 15 million tons of municipal solid waste each year with an average daily rate of 1.4 kg per person. This rate is projected to double (30 million tons per year) by 2033 with current annual population growth rate of 3.4%. The major ingredients of Saudi Arabian municipal solid waste are food waste (40-51%), paper (12-28%), cardboard (7%), plastics (5-17%), glass (3-5%), wood (2-8%), textile (2-6%), metals (2-8%) etc. depending on the urban activities and population density of studied region. Prevalent … Continue reading

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