Development program for heat balance analysis fuel to steam efficiency boiler and data wireless transfer

This research aim to improve a combustion system of boiler within increase combustion efficiency and use all out of the energy.This research aim to improve a combustion system of boiler within increase combustion efficiency and use all out of the energy. The large boilers were used in the industrial factories which consume a lot of energy for production. By oil and gas fuel will be increasing costs everyday cause many factories interested in energy saving with any method technical engineering, specifically for production costs and environment effect decreasing. This researching was installed and program was invented in the industrial factory. This industry factory consumed cogeneration energy for fabric dying. The efficiency before installing the software is measured about 65.85 - 71.98% which heat in exhaust gas about 20% of overall energy is filled in the system. After installing heat loss in the system has been fallen until remain about 5 - 12% and efficiency of heat in system has been reached a peak of 80 - 85%

A Solid-State Device for Fault Protection in Low Voltage Wind Turbine System

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2553This paper presents how to design and build electrical protection equipment to apply for a wind turbine generator system which is modeled on low voltage 3 phase 380 volts system. This electrical equipment acts as a switch to open-close an electrical circuit to prevent an electrical system as well as equipments or devices in the system. It will open the circuit quickly and decrease the contact arcing of a circuit breaker. The implementation of power electronic properties is used instead of mechanical parts which is called “Solid-State Beaker”. This article presents a method of solid-state breaker simulation on the mathematical analysis via MATLAB/ Simulink program in the cases of fault occurring in an electrical system. The simulation is used as a comparison when it is brought into the system. The fault voltage is detected by RMS Method which is implemented in LAB View program. The detection signal will be sent to the solid-state breaker and order it to cut off all three lines simultaneously to confirm the efficient running of solid- state breaker. But this paper has not yet considered the effect of Harmonic.Rajamangala University of Technology Phra Nakho

Development of Smart Monitoring System for Wind Energy System

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยี ราชมงคลพระนคร, 2553The paper presents a development of monitoring system for a prototype wind turbine system. The proposed monitoring system is developed under Labview environment. The system can connect to the wind turbine online via internet. The system will collect the monitored values and install values into memory. Simultaneously, the system can show the values in Real-Time. The operator can observe the wind turbine by the monitoring system and can take an action on time if the wind turbine is not working properly. The results of the monitoring system indicate that the monitoring system is be able to working properly, the data can be used to investigate the wind turbine for system analysis. This is very important for wind turbine in order to supply energy to consumer stably.Rajamangala University of Technology Phra Nakho

Fluctuation Voltage Control of Wind Turbines via STATCOM

รายงานการวิจัย--มหาวิทยาลัยเทคโนโลยี ราชมงคลพระนคร, 2553This paper presents distributed STATCOM for controlling voltage in distribution line with wind turbines generations at 48 volts. The connection of wind turbine to distribution systems may affect the voltage quality offered to the consumers. One of the factors contributing to this effect is the rapid variations of the wind turbine output power, which cause respective fluctuations in the supply voltage. This paper presents the design, control and analysis of a Distributed STATCOM when combined with a wind turbine comprising small variable speed generators, in this paper it is shown that the distributed STATCOM, controlled via a rotating referent frame: RRF and recursive DFT are simple method to DSP control technique. The result of experiments the STATCOM can improve the transient stability voltage of wind turbine that we have referred the IEEE1159:1995 standard of power quality.Rajamangala University of Technology Phra Nakho