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A schematic of a direct solar dryer. Direct solar dryers expose the substance to be dehydrated to direct sunlight. Historically, food and clothing was dried in the sun by using lines, or laying the items on rocks or on top of tents. [2] In Mongolia cheese and meat are still traditionally dried using the top of the ger (tent) as a solar dryer. [3]
Some solar food dryer designs employ a separate solar collector to generate the heated air, which is then directed into a food chamber or cabinet. This type of solar food dehydrator is called an indirect solar dryer. [7] [8] [9] Other designs combine the collector and food cabinet and allow direct heating of food (these are called direct solar ...
The presence of a fireplace, chimney and clothes dryer were a source of convective heat loss; The design was not adequate to function in polar climates. Concerns about condensation and moisture issues forming in the convection loop leading to maintenance or health issues. The additional materials and thermal mass used in construction
Passive solar building construction may not be difficult or expensive (using off-the-shelf existing materials and technology), but the scientific passive solar building design is a non-trivial engineering effort that requires significant study of previous counter-intuitive lessons learned, and time to enter, evaluate, and iteratively refine the ...
The Whole Building Design Guide or WBDG is guidance in the United States, described by the Federal Energy Management Program as "a complete internet resource to a wide range of building-related design guidance, criteria and technology", and meets the requirements in guidance documents for Executive Order 13123. [1]
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By combining electricity and heat generation within the same component, these technologies can reach a higher overall efficiency than solar photovoltaic (PV) or solar thermal (T) alone. [2] [3] Significant research has gone into developing a diverse range of PVT technologies since the 1970s. [4]
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