Gas turbines – technological development and potential use in CAES systems

Analysis of micro-recuperators in small-sized gas turbines –manufacturing potential of Iran

Heat recuperation is often used to improve the overall cycle efficiency of gas turbines. However, generally in small- scale gas turbines, it has a negative effect on turbine inlet temperature, pressure ratio and pressure drops, and thus decreases the overall cycle efficiency. In this paper, a thermodynamic model is performed to evaluate recovered heat as a function of heat exchanger effecti...

Analysis of micro-recuperators in small-sized gas turbines –manufacturing potential of Iran

Heat recuperation is often used to improve the overall cycle efficiency of gas turbines. However, generally in small- scale gas turbines, it has a negative effect on turbine inlet temperature, pressure ratio and pressure drops, and thus decreases the overall cycle efficiency. In this paper, a thermodynamic model is performed to evaluate recovered heat as a function of heat exchanger effectivene...

Properties of natural organisms and its use in technological architecture

This research aimed at identifying natural organisms and their properties in the technological samples of contemporary architecture. The main questionswere: "Which properties of natural organisms are effective on the technological works of contemporary architecture?" and "How much do they affect?"This descriptive-analytic research was conducted using archival method to access the theoretical...

Hot Corrosion in Gas Turbines

DURING COMBUSTION in the gas turbine, sulfur from the fuel reacts with sodium chloride from ingested air at elevated temperatures to form sodium sulfate. The sodium sulfate then deposits on the hot-section components, such as nozzle guide vanes and rotor blades, resulting in accelerated oxidation (or sulfidation) attack. This is commonly referred to as “hot corrosion.” Sulfur in the fuel is gen...

Ultra Micro Gas Turbines