Ultra Micro Gas Turbines

Capata, Roberto

doi:10.5772/37829

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…The elements of the tested gas turbine are shown in the Figure 19. Furthermore, the technology of ultra-small gas turbines is presented in [126][127][128][129][130]. Ansaldo Energia [131][132][133] and Capstone [134] are one of the world's leading manufacturers of micro gas turbines.…”

Section: Gas Microturbinesmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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Small and micro energy sources are becoming increasingly important in the current environmental conditions. Especially, the production of electricity and heat in so-called cogeneration systems allows for significant primary energy savings thanks to their high generation efficiency (up to 90%). This article provides an overview of the currently used and developed technologies applied in small and micro cogeneration systems i.e., Stirling engines, gas and steam microturbines, various types of volumetric expanders (vane, lobe, screw, piston, Wankel, gerotor) and fuel cells. Their basic features, power ranges and examples of implemented installations based on these technologies are presented in this paper.

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Section: Gas Microturbinesmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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“…In an electrically coupled turbocharger it is not possible to use the original GT12 component, because its design points depend on the operation of the waste-gate valve, and as such it would not be able to properly respond to the engine conditions nor to supply the required extra power [14][15][16][17][18]. The selection and redesign of the turbine are detailed in a separate work [19], and only a brief summary is repeated here.…”

Section: Preliminary Re-design Of the Turbinementioning

confidence: 99%

Study, Development and Prototyping of a Novel Mild Hybrid Power Train for a City Car: Design of the Turbocharger

Capata

Sciubba

2020

Applied Sciences

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Within a large, state-funded, Italian National Project aimed to test the feasibility of an on-the-road prototype of a mild hybrid city vehicle, one of the tasks was to conceive, design and implement an innovative turbocharger that would allow for some energy recovery. The selected vehicle is propelled by a 3-cylinder, 998 cc turbocharged engine (the 66 kW Mitsubishi-Smart W451). The idea is to implement two types of energy recovery: one via the new turbocharger and one through a standard braking energy recovery (also known as KERS). The study of the former is the object of this paper. The proposed turbocharger configuration consists of mechanically separated, electrically coupled compressor and turbine, possibly mounting only slightly modified commercial equipment to reduce construction costs. This paper reports the results of the calculation of the behavior of the new turbocharging group across the entire engine operating range and describes the preliminary design of the unit. An accurate simulation of a mixed (urban and extra-urban) driving mission demonstrates that a net saving of about 5.6% can be attained by the installation of the novel turbocharger unit.

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“…(3) non-adiabatic flow condition. The effect of low Reynolds-numbers compressor stages has been thoroughly captured in early work [9][10][11] where a correction based on the machine Re-number and surface roughness was proposed. It is suggested that friction losses within the impeller correlate well with the Moody-diagram.…”

Section: Introductionmentioning

confidence: 99%

Experimental Tests of the Operating Conditions of a Micro Gas Turbine Device

Capata¹

2015

JEPE

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The aim of this work is to analyze the performance of a commercial micro gas turbine, focusing on the analysis of the fuel consumption and the outlet compressor and turbine temperature at various rpm, and to evaluate and compare the efficiency of the device. A test bench has been assembled with the available equipment in the laboratory of the department of mechanical and aerospace engineering in Roma. By using the software supplied by the manufacturer, the evaluation of the operating performance of the device at different speeds has been performed, obtaining all the values of interest.

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Ultra Micro Gas Turbines

Cited by 4 publications

References 18 publications

Modern Small and Microcogeneration Systems—A Review

Modern Small and Microcogeneration Systems—A Review

Study, Development and Prototyping of a Novel Mild Hybrid Power Train for a City Car: Design of the Turbocharger

Experimental Tests of the Operating Conditions of a Micro Gas Turbine Device

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