Patent ID: 7748137
Filing Date: 2010-07-06
Classification: A01G,F26B,Y02A,Y02P,Y10T

Abstract:
1. A method of drying comprising: placing a moist material inside a substantially enclosed solar greenhouse, said greenhouse comprising at least one light transmission roof and/or wall panel that is substantially transparent to solar radiation having at least 40% transmission of solar radiation in 280 nm to 2500 nm range, but resistant to convective and conductive heat transfer having a thermal conductivity of less than about 1 W/mK; maintaining the interior air temperature between about 20° C. and about 65° C., and relative humidity between about 30% and 95% to facilitate consistent removal of interior moisture content of said green house and a controlled drying of said moist material such that the moisture content of said moist material reaches between about 10% and 50%; measuring moisture content of the interior and exterior air of said greenhouse; wherein said moisture content of air is defined as the ratio of kilogram of water vapor per kilogram of dry air and venting the interior air using an element for controlling ventilation if moisture content of the interior air is greater than that of the exterior air; wherein said element comprises an adjustable roof vent.