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Ocean Thermal Energy Conversion: A renewable source of base load power?

Posted by Alex Barrett on 29 August 2017 at 11:10 am

Ocean Thermal Energy Conversion: A renewable source of base load power?

Ocean Thermal Energy Conversion (OTEC) is a renewable energy technology which generates electricity using sea water. 71% of the world’s surface is covered by ocean [1]. This means that a large amount of solar energy is constantly warming the upper layers of the oceans. This creates a strong…

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Should cogeneration be considered a green energy technology?

Posted by Alex Barrett on 22 June 2017 at 3:01 pm

Should cogeneration be considered a green energy technology?

We consume energy in two main ways, as electricity and as heat. These are produced, distributed and used in very different ways. Most electricity is generated by centralised power stations, with a relatively small fraction being produced at the point of use. It is then distributed, potentially ov…

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How do you assess the efficiency of a ground source heat pump?

Posted by Alex Barrett on 13 June 2017 at 10:57 am

How do you assess the efficiency of a ground source heat pump?

Ground Source Heat Pumps (GSHP) extract heat from the ground, and use it to produce hot water. The temperature in the subsurface remains around 11-12oC throughout the year [1]. By burying pipes just a few metres below the ground you can take advantage of this readily available supply of thermal e…

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Solar Chimneys: Passive solar ventilation and electricity generation.

Posted by Alex Barrett on 7 June 2017 at 3:15 pm

Solar Chimneys: Passive solar ventilation and electricity generation.

The solar chimney is designed to harness the fact that hot air rises, providing passive ventilation for a building. A solar chimney can be used to cool a house during warm weather, and generate heat during cold times of the year. There have also been efforts to build industrial scale solar chimne…

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Are Infrared panel heaters a good way to heat a room?

Posted by Alex Barrett on 9 May 2017 at 2:50 pm

Are Infrared panel heaters a good way to heat a room?

Infrared panel heaters are a relatively new way to heat your house. They work very differently to radiators, and have some advantages when it comes to energy efficiency. Infrared panel heaters use radiation to heat the room instead of convection. This means that they deliver heat directly to …

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