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Aren't there many similar bermed (plus very-wide) greenhouses in China, including motorized deploument of insulated covers at night?
by a9h74j 4y ago
Aren't there many similar bermed (plus very-wide) greenhouses in China, including motorized deploument of insulated covers at night?
- prawn 4y agoI visited a very high-tech greenhouse a couple of years ago here in Australia and one of their solutions was very low-tech: in summer, to manage the heat somewhat, they sprayed the glass roof/walls with a chalky mixture which impeded heat coming through slightly.
- NathanielBaking 4y agoYes. I suggest the book "The Chinese Greenhouse". A very straightforward look at constructing a partially sunken greenhouse. Chiras, D. D., Chiras, F., & Rao, A. (2020). The chinese greenhouse: Design and build a low-cost, passive solar greenhouse. New Society Publishers.
- a9h74j 4y agoThanks! > Originally developed in China to feed millions, Chinese greenhouses are earth-sheltered, solar-heated, east-west oriented, intelligently glazed, and well-insulated. They have proven highly effective in growing warm-weather vegetables and fruits like green peppers and tomatoes in cold climates through fall, winter, and early spring using passive solar energy as the sole heat source.
- mytailorisrich 4y agoTwo key things are that Northern China is relatively South (compared to Europe) and that it tends to be sunny in winter. This means you get plenty of sunlight and it is still strong enough to be warming. So these greenhouses don't work that well in, say, the UK where winters, while not as cold as Northern Chinese ones, are very gloomy.
- aaron695 4y agoYou can view the first part here, looks quite relevant - https://books.google.com/books?id=MZrKDwAAQBAJ&pg https://books.google.com/books?id=MZrKDwAAQBAJ&pg