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Conventional methods of bagasse drying are using natural air convection or using forced air. The use of microwave energy to dry bagasse is not tried so far. It could be advantageous due to possibility of heating and drying bagasse at a much faster rate than conventional methods, thereby controlling calorific value accurately and improving boiler efficiency. Special setup is prepared to carryout experimental...
A unified thermal model based on polynomial relationship of ns and EF is presented for AlGaN/GaN high electron mobility transistors (HEMTs). Self heating and polarization effects are included in the calculations of Id-Vd characteristics. The model is based on closed form expressions and does not require elaborate computation. our results agree with published experimental data.
A variable high power microwave system, wherein output power can be varied from 0.6 kW to 5 kW at a nominal frequency of 2450 MHz has been designed and developed for processing of material in liquid form. Two applicators have been developed for the processing of material. One is a rectangular multimode cavity for batch processing. The second one is cylindrical cavity with tubes for continuous operation...
High power microwave tubes can generate power in MW level even at frequency above 100 GHz. These tubes are a necessity for various applications like high data rate ground and space communications, defence and civilian radars, linear accelerators, plasma heating, and e-bomb. Solid-state devices are not available to meet these objectives because of their power level in few watts. Some of the important...
Dielectric windows often limit the power handling capability of vacuum electron devices. It is necessary to choose the right dielectric material for high power applications. Depending upon the power level, a range of materials has been used in various systems. The ideal material should have high mechanical strength, high thermal conductivity, high electrical breakdown voltage, low dielectric loss,...
This paper deals with the study of the gyrotron cavity for its cooling. Cavity with different types of groove structures and their thermal effects have been studied to optimize cooling effect.
A study has been made while analyzing an unusual problem in linear accelerator system, wherein, klystron has been used as high power microwave source. Klystron output started dropping unexpectedly for which, diagnosis was made. The root cause of the problem was found to be presence of corrosive sulfur in insulating oil used. Mineral oils are very commonly used as electrical insulation. This paper...
Microwave synthesis represents one of the important dimensions of modern chemistry attracting a considerable amount of attention. A biologically potent Schiff base derived from 3-acetyl-2,5-dimethylthiophene and 2-aminothiophenol and its Pd(II) and Pt(II) metal complexes of the type [M(Bzt)2] (where M = Pd/Pt and Bzt = deprotonated ligand) have been synthesized by thermal as well as Microwave assisted...
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