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Alternative Energy Tutorials on Energy Articles

Freshwater Production


Freshwater production technologies can help sustain all the life here on Earth with access to clean drinkable freshwater supplies being a major human need. Water is the most essential ingredient for our bodies so having access to fresh clean drinking water is vital. Desalination plants and large scale solar stills are being installed and used all over the world in order to satisfy the freshwater demand in countries where access to fresh clean drinking water can sometimes be a challenge

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Hydrogen Energy

hydrogen energy gas

Hydrogen energy from a renewable energy perspective is a low-carbon energy supply we can use to power our homes and cars. Green hydrogen is a clean energy source which can play an important role in reducing the global requirements of fossil fuels. The use of hydrogen energy can provide the bridge between the variable output from solar photovoltaics and wind turbines as well as becoming a lowest-cost option for storing large quantities of electrical energy. Hydrogen and hydrogen-based transportation fuels can help transport renewable energy sources over longer distances

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Solar Cooling

solar cooling

Solar cooling removes the need for refrigeration and air conditioning systems which can dramaticly increase electricity consumption and therefore greenhouse gas emissions. Solar cooling systems can save energy in comparison to conventional cooling technologies as their main design and operation uses solar energy. The advantage here is that any air conditioning and cooling requirements is at its highest when the solar irradiation is abundantly available so the cooling demand produced from solar energy is immediately used

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hydroelectric power

Hydroelectricity uses the force of falling water from large reservoirs or the flowing water of rivers, streams and waterfalls to generate electrical energy using water turbines. Hydroelectricity genetation schemes are common throughout the world and are a well established clean energy source with pumped hydro storage and run-of-river schemes used to generate electricity. Being a flexible, readily available and zero emissions source of renewable energy, hydro power will continue to play a vital role in our clean energy future

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Pico Solar Systems

pico solar light

Pico solar systems use small scale photovoltaic panels for lighting and battery charging applications. There are still many people around the world who have no access to an electricity grid connection or require a portable energy source for camping or RV’s so pico solar systems can help in provide the essential energy required to fill this gap. Pico solar systems of only a few watts have experienced significant development in the past few years, combining very efficient LED bulbs with sophisticated charge controllers and energy efficient storage batteries providing power for lighting, phone charging or powering a radio, etc.

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Sustainable Food Production

sustainable food

Sustainable food and agricultural systems grow and ensures food safety and nutrition for all in such a way that the economic, social and environmental conditions used to produce the food is not compromised for future generations. Creating a sustainable food future to nutritiously feed an ever growing world population in ways that can help against food poverty, meet climate change goals while reducing the loss of habitat, freshwater depletion and pollution, and other environmental impacts of farming is a major goal of sustainable food production

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biofuel energy

Biolubrications, bio-based lubricants and bio-lubes are made from a different variety of vegetable seeds and oils, such as rapeseed, canola, sunflower, soybean, palm, and coconut oils. Biolubricants are used in machinery as a direct replacement for conventional fossil fuel based oils reducing the impact on the environment as a result of leakage during use or in sensitive areas in or around water which can remain contaminated for many years. Biolubricants reduce the impact on the environment and workers due to their lower toxicity levels compared to conventional lubricants and greases

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Solar Radiation

solar radiation

Solar radiation from the sun is the major component of a photovoltaic panel in the generation of electricity. The sun emits huge amounts of energy in the form of electromagnetic radiation which travels from the sun’s core to the Earth’s surface throughout the day. The amount of solar radiation which reaches the Earth’s surface varies daily due to atmospheric conditions of dust particles, water vapour and clouds. The performance of any PV system is mainly influenced by the amount of solar radiation that arrives at the surface of the PV’s panel

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Heat Exchanger Design

thermal radiator

Heat exchanger design has changed very little over the years but their importance in terms of energy conservation, conversion, recovery, and successful implementation of new energy sources has. Heat exchangers are used in many power, heat-recovery, process, transportation and refrigeration applications, so the choice of heat exchanger thermal design is important. Fan assisted finned type heat exchangers are the most commonly used design mainly because they are cheap, while water cooled heat exchanger designs are more efficient but expensive

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Penstock Design

hydro energy

Penstocks are pipes, tunnels, canals or channels used to transport water from river to turbine. Penstock design is an important part of any hydropower scheme because without it, the turbine blades would not rotate. Hydro energy is a well known and used form of renewable energy resource that uses both the stored potential energy and the kinetic energy of water as a source of power. The correct design of a penstock for hydropower projects reduces its cost, improves water flow, and saves on waste water.

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