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2012 — Efficiency on the double: Energy Edge takes a close look at combined heat and power - who should consider it, return on investment, electricity feed-in tariff contracts and more.

March 31, 2010 – A team from the Basque Institute for Agricultural Research and Development (Neiker-Tecnalia) has questioned the generally held belief that the quality of tomatoes depends primarily on their exposure to natural light and states that the most determining factor is temperature.
WEB EXCLUSIVE

New tomato research on temperature effects

A team from the Basque Institute for Agricultural Research and Development (Neiker-Tecnalia) has questioned the generally held belief that the quality of tomatoes depends primarily on their exposure to natural light and states that the most determining factor is temperature.
Growers can now build and heat a “virtual” greenhouse – or upgrade existing greenhouses – on a computer, to find out how much it would cost to heat with different fuels, heating schedules, heaters, building designs and materials.
Considerable input savings may be possible, along with improved yields and reduced disease pressures. The results, which come from only one year of testing and one year of growing, are “very promising,” according to one expert.

The terms “boiler shock” and “thermal shock” describe a type of heat-stress in greenhouse boilers that can lead to damage and serious structural failure of the boiler vessel.

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