Abstract: Said method is implemented via a power generation unit comprising at least one combustion turbine configured to generate, at defined site conditions, without cooling or heating of the incoming air stream, a defined site electrical or/and mechanical power lower than a predefined maximum required electrical or/and mechanical power. The method comprises the following steps cooling the incoming air stream when the power requested by the consumer system is greater than the defined site power of the power generation unit at the defined site conditions, and is lower than or equal to the predefined maximum required power; heating the incoming air flow when the power requested by the consumer system is lower than the defined site power of the power generation unit at the defined site conditions.

Abstract: The invention provides methods of operating thermal equipment, for example, gas turbines and methods for protecting hot parts of thermal equipment from, for example, corrosion by ash from an alkali metal or from lead; fouling by ash of an alkaline-earth metal, lead or a transition metal; and the combined effects of an alkali metal, lead, an alkaline-earth metal or a transition metal.

Abstract: A process to create a collision in controlled conditions between a stream of gas and particles and a target includes the generation of a stream of gas and particles, of given composition, in the form of a unidirectional beam, using a supersonic burner comprising a combustion chamber and a gas gun, the combustion chamber being fed with a set of fluids comprising a set of gases comprising an oxidizer, and a specific liquid fuel. The generation of a collision between the beam and the target includes the adjustment of the fuel flow, the flow of each gas and the adjustment of the distance between the burner and the target, so as to obtain at the impact point the desired values of the following parameters: (i) the gas temperature or the temperature of the target, and (ii) the gas speed.

Abstract: Methods for on-line cleaning hot parts of a gas turbine during its operation are provided. A cleaning agent composition is injected into a hot gas path of the gas turbine, and includes a liquid carrier and a descaling material suspending in the liquid carrier. The descaling material includes at least one oxide, in an anhydrous or a hydrated form, that is derived from calcium, magnesium, titanium, iron, aluminium, silicon in the form of silicates having non-fibrous structures, or phosphorus in the form of alkaline-earth phosphates. Cleaning agents are also provided for use in a gas turbine.

Abstract: A wind tunnel making it possible to measure the vaporization parameters of a test liquid exposed in a gas flow is disclosed. The wind tunnel comprises: a gas generator configured to generate a gas at a flow rate and at a temperature that are adjustable; a conditioning device designed to obtain a horizontal and uniform flow of the generated gas; a measurement chamber containing the liquid to be tested and various measurement devices making it possible to characterize the flow of gas passing through the measurement chamber; a tapping and analysis zone in which the gas-and-vapor mixture is tapped analyzed; and a discharge zone configured to discharge the gas-and-vapor mixture. The liquid to be tested in the tunnel presents a free surface positioned inside the measurement chamber in a manner such that it is swept continuously and tangentially by the uniform flow of gas.

Abstract: A process to create a collision in controlled conditions between a stream of gas and particles and a target includes the generation of a stream of gas and particles, of given composition, in the form of a unidirectional beam, using a supersonic burner comprising a combustion chamber and a gas gun, the combustion chamber being fed with a set of fluids comprising a set of gases comprising an oxidizer, and a specific liquid fuel. The generation of a collision between the beam and the target includes the adjustment of the fuel flow, the flow of each gas and the adjustment of the distance between the burner and the target, so as to obtain at the impact point the desired values of the following parameters: (i) the gas temperature or the temperature of the target, and (ii) the gas speed.

Abstract: A method of operating a thermal installation other than a gas turbine and use of such a method for inhibiting vanadic corrosion is disclosed herein. Embodiments of the invention relate to a method of operating a thermal installation comprising a combustion chamber fed with a fuel contaminated with vanadium, with sulfur and possibly with sodium. The combustion chamber is also fed with boron and with magnesium, in quantities such that the magnesium molar ratio m=MgO/V2O5 and the boron molar ratio b=B2O3/V2O5 satisfy the conditions (i) m?2+b; (ii) m?3+2b; (iii) b?0.5 and (iv) b?2, so that the combustion products comprise magnesium vanadate, mixed magnesium boron oxide and possibly sodium borate.

Abstract: The invention provides a method of operating a thermal installation comprising a combustion chamber fed with a fuel contaminated with vanadium, with sulphur and possibly with sodium. In particular, the combustion chamber is also fed with boron and with magnesium, in quantities such that the sodium molar ratio s=Na2SO4/V2O5, the magnesium molar ratio m=MgO/V2O5 and the boron molar ratio b=B2O3/V2O5 satisfy the equation m?3+2b?s, so that the combustion products comprise magnesium orthovanadate, mixed magnesium boron oxide and possibly sodium borate. The invention also provides for the use of such a method to inhibit corrosion of the thermal installation by vanadium oxide, possibly in the presence of sodium.

Abstract: A wind tunnel making it possible to measure the vaporization parameters of a test liquid exposed in a gas flow is disclosed. The wind tunnel comprises: a gas generator configured to generate a gas at a flow rate and at a temperature that are adjustable; a conditioning device designed to obtain a horizontal and uniform flow of the generated gas; a measurement chamber containing the liquid to be tested and various measurement devices making it possible to characterize the flow of gas passing through the measurement chamber; a tapping and analysis zone in which the gas-and-vapor mixture is tapped analyzed; and a discharge zone configured to discharge the gas-and-vapor mixture. The liquid to be tested in the tunnel presents a free surface positioned inside the measurement chamber in a manner such that it is swept continuously and tangentially by the uniform flow of gas.

Abstract: The invention provides methods of operating thermal equipment, for example, gas turbines and methods for protecting hot parts of thermal equipment from, for example, corrosion by ash from an alkali metal or from lead; fouling by ash of an alkaline-earth metal, lead or a transition metal; and the combined effects of an alkali metal, lead, an alkaline-earth metal or a transition metal;

Abstract: The invention provides a method of operating a thermal installation comprising a combustion chamber fed with a fuel contaminated with vanadium, with sulphur and possibly with sodium. In particular, the combustion chamber is also fed with boron and with magnesium, in quantities such that the sodium molar ratio s=Na2SO4/V2O5, the magnesium molar ratio m=MgO/V2O5 and the boron molar ratio b=B2O3/V2O5 satisfy the equation m?3+2b?s, so that the combustion products comprise magnesium orthovanadate, mixed magnesium boron oxide and possibly sodium borate. The invention also provides for the use of such a method to inhibit corrosion of the thermal installation by vanadium oxide, possibly in the presence of sodium.

Abstract: The invention concerns inhibition of vanadium corrosion of thermal equipment materials burning vanadium-contaminated liquid fuels using nickel compounds. The invention is applicable in particular to liquid fuel combustion in gas turbines.