Inlet fogging has been noticed widely in recent years as a method of gas turbine air inlet cooling for increasing the power output of gas turbines and combined cycle power plants. To study the effects of inlet fogging on gas turbine performance, in the first step, the evaporation of water droplets in the compressor inlet duct was modeled, and at the end of the inlet duct, the diameter of water droplets were estimated. The results of this process were compared with the results of FLUENT software. In the second step, the droplets which were not evaporated in compressor inlet duct were studied during wet compression in the compressor and the reduction in compressor discharge air temperature was predicted. Finally, the effects of both evaporative cooling in inlet duct, and wet compression in compressor, on the power output, and turbine exhaust temperature of a gas turbine with turbine blade cooling were investigated. These results for various amounts of air bleeding, without and with inlet fogging in the range of (0–2%) overspray are reported.
In this paper, the most important activities for increase the seismic reliability and safety level of Electric Power Distribution Network (EPDN) in IRAN are presented. TAVANIR Co. as the manager of production, transmission and distribution of electricity in IRAN with the cooperation of NRI carried out a research project to develop seismic assessment and rehabilitation guideline of EPDN of IRAN and Crisis Management implementation. As the consequences, two guidelines have been developed and Great Tehran Electrical Distribution Co. collaborated in the mission and the SADATABAD Region as the first pilot to execute implementation of guidelines has been assessed and results of this assessment are briefly presented here.
This paper introduces a novel solution for shaping electricity demand and decreasing it in peak hours via controlling electro-pumps which are used for irrigation purposes. It will be shown that in the regions where pilot projects are implemented, electricity demand is decreased dramatically. However a number of electro-pumps and whole electricity consumptions have is increased normally. Furthermore water usage efficiency is increased, simultaneously.
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