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The paper describes “Community scale, decentralized anaerobic digestion for energy and resource technology” which is a joint UK-Thailand project much in line with the current aims of the Thai Government for decentralized energy generation. The use of food waste for biogas generation by the process of anaerobic digestion provides multiple benefits: decreased energy dependency, nutrient preservation...
Electricity access is a key driver for developing a modern society. The use of locally generated renewable energy can overcome limitations of expensive grid infrastructure. However, there are still barriers to access particularly for the rural poor in the global south. When individuals or communities invest in electricity provision it is important to know how well the system is performing. Commercial...
In this paper we discuss operational experiences of two large industrial anaerobic digestion facilities processing brewery waste and maize. The raw effluent from the brewery waste has COD ranging from 5500 mg/l to 41400 mg/l, with variable flow rate and suspended solids up to 4800 mg/l. The Anaerobic Digestion (AD) treatment uses 900m3 EGSB reactor. The two-year monitoring of data includes Ripley's...
The power supply described in this paper was developed for use in systems utilizing VHSIC integrated circuits which require voltages between two and three volts at substantial levels of current. The philosophy guiding this design, the pertinent trade-offs which were examined, and the data taken are presented.
The brief, but dynamic, history of power MOS transistors has been presented in this paper. Power MOS transistors have become accepted by "circuit design" engineers because of their performance advantages over bipolar transistors in certain applications. A comparison of MOS and bipolar transistors has been made. The strengths and weaknesses of each device type has been related to device structure...
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