منابع مشابه
Perspectives of Anaerobic Soil Disinfestation
Biological soil disinfestation is an environmentally friendly method to disinfest soil. From now on we refer to it as anaerobic soil disinfestation (ASD). With ASD a green manure crop (40 t/ha) is homogeneously incorporated into the topsoil (0-30 cm) after which the field is lightly compacted and irrigated. Subsequently the field is mechanically covered with air tight virtually impermeable film...
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The mode of operation of mini parabolic solar panels made of germanium, mild steel and aluminium were investigated experimentally, as means of providing heated water on a farmland; the process was also modelled. Angular adjustments of the solar collectors from 70-90o were adopted in order to determine, the best material of construction for the parabolic solar collector and the angular orientati...
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This paper deals with the performance of a heat pipe solar collector. The solar collector consisted of an interconnected heat pipe so as to reduce the production cost by using an interconnected heat pipe because all the heat pipes can be evacuated, sealed and tested at once. Performance of a prototype of the heat pipe solar collector was experimentally examined, and the results were compared wi...
متن کاملSolar Thermal Collector System Modeling and Testing for Novel Solar
Solar cookers are aimed at reducing pollution and desertification in the developing world. However, they are often disregarded as they do not give users the ability to cook after daylight hours. The Wilson solar cooker is a solar cooker designed to address this problem by converting solar energy and storing that energy as heat in the form of molten salt (lithium nitrate). This thesis involved r...
متن کاملGrey-box models for steam soil disinfestation simulation
Agricultural and biological processes often involve complex phenomena that depend not only on time but also on other independent variables, like spatial coordinates. These processes are intrinsically distributed parameter systems whose modelling requires the adoption of (non linear) partial differential equation. Due to their complexity these models often involve parameters difficult to be esti...
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ژورنال
عنوان ژورنال: Netherlands Journal of Plant Pathology
سال: 1993
ISSN: 0028-2944,1573-8469
DOI: 10.1007/bf01974784