Results 1 to 10 of about 1,274,911 (296)

Three Shaft Industrial Gas Turbine Transient Performance Analysis

open access: yesSensors, 2023
The power demand from gas turbines in electrical grids is becoming more dynamic due to the rising demand for power generation from renewable energy sources.
Waleligne Molla Salilew   +4 more
doaj   +1 more source

Novel Off-Design Operation Maps Showing Functionality Limitations of Organic Rankine Cycle Validated by Experiments

open access: yesEnergies, 2022
In this study, we developed a new methodology to analyze the off-design performance of the organic Rankine cycle. The methodology enabled us to predict the performance based on four-dimensional decision variables and a set of constraints. A corresponding
Ying Zhang   +6 more
doaj   +1 more source

Predicting the Performance Deterioration of a Three-Shaft Industrial Gas Turbine

open access: yesEntropy, 2022
The gas turbine was one of the most important technological developments of the early 20th century, and it has had a significant impact on our lives. Although some researchers have worked on predicting the performance of three-shaft gas turbines, the ...
Waleligne Molla Salilew   +4 more
doaj   +1 more source

Off-Design Analysis Method for Compressor Fouling Fault Diagnosis of Helicopter Turboshaft Engine

open access: yesModelling, 2023
Fouling, caused by the adhesion of fine materials to the blades of the compressor’s last stages, changes the airfoil’s shape and function and the inlet flow angle on the blades.
Farshid Bazmi, Afshin Rahimi
doaj   +1 more source

Improved Body Force Model for Estimating Off-Design Axial Compressor Performance

open access: yesEnergies, 2022
Based on the COMSOL software, body forces substituted into the Reynolds-averaged Navier–Stokes (RANS) equations as the source terms instead of the actual blade rows were improved to better predict the compressor performance. Improvements in parallel body
Jia Huang   +7 more
doaj   +1 more source

Performance Analysis of an Ammonia-Fueled Micro Gas Turbine

open access: yesEnergies, 2022
Micro gas turbines fit perfectly with the energy roadmap to 2050: on-site, small scale power generation, combined with heat recovery from exhaust gas, offers an opportunity to deploy primary energy saving and pollutant emission reduction. Moreover, their
Vittorio Bonasio, Silvia Ravelli
doaj   +1 more source

Experimental and Numerical Investigation of a Turbine Vane Frame with Splitters at Different Operating Points

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
A turbine vane frame is a special type of intermediate turbine duct, and is one option to improve the efficiency and reduce the length and weight of an aero-engine.
Simon Pramstrahler   +5 more
doaj   +1 more source

Model-Based Dynamic Performance Simulation of a Microturbine Using Flight Test Data

open access: yesAerospace, 2022
Microturbines can be used not only in models and education but also to propel UAVs. However, their wider adoption is limited by their relatively low efficiency and durability. Validated simulation models are required to monitor their performance, improve
Mario Leonardo Erario   +2 more
doaj   +1 more source

Simulation of a New Hybrid Solar and Organic Cycle as a Combined Cooling, Heat and Power (CCHP) Unit in Off Design Condition [PDF]

open access: yesEnvironmental Energy and Economic Research, 2017
In this paper, using parabolic mirrors, a solar field was designed, which was related to a storage tank for a residential complex in the city of Tafresh located in the center of Iran.
Mohammad Ameri, Hamid Mokhtari
doaj   +1 more source

ORC Optimal Design through Clusterization for Waste Heat Recovery in Anaerobic Digestion Plants

open access: yesApplied Sciences, 2021
Waste heat recovery (WHR) systems through organic rankine cycles (ORCs) in anaerobic digestion plants may improve cogeneration efficiency. Cogeneration unit power output, flue gas temperature, and mass flow rate are not constant during the day, and the ...
Guido Francesco Frate   +3 more
doaj   +1 more source

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