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Tuesday, July 28, 2020 | History

2 edition of Analysis of a radial-outflow reaction turbine concept for geothermal application found in the catalog.

Analysis of a radial-outflow reaction turbine concept for geothermal application

P. A. House

Analysis of a radial-outflow reaction turbine concept for geothermal application

by P. A. House

  • 49 Want to read
  • 4 Currently reading

Published by Dept. of Energy, [Office of the Assistant Secretary for Defense Programs], Lawrence Livermore Laboratory, for sale by the National Technical Information Service in Livermore, Calif, Springfield, Va .
Written in English

    Subjects:
  • Turbines.,
  • Geothermal resources.

  • Edition Notes

    StatementP. A. House.
    SeriesUCRL ; 52480
    ContributionsLawrence Livermore Laboratory.
    The Physical Object
    Paginationiii, 13 p. :
    Number of Pages13
    ID Numbers
    Open LibraryOL18014789M

    The book delves into the main renewable energy topics such as solar, wind, geothermal, hydropower, biomass, tidal, and wave, as well as hydrogen and fuel cells. By stressing real-world relevancy and practical applications, fundamentals and applications of renewable energy helps prepare students for a successful career in renewable energy. Maximum power output and thermal conversion efficiency are the goals of ORC thermodynamic analysis. Co-optimization of energetic performance and system cost is needed for pre-feasibility design analysis. This paper presents a pre-feasibility design investigation for a binary geothermal power plant using a typical geothermal resource in New Zealand.

    Radial Inflow and Nixed Flow Turbines by F. J. Wallace SUMMARY The report deals with 3 aspects of the turbine design problem: 1. A simplified one-dimensional steady flow treatment for performance predictions on simple and multiple admission turbines including the case of nozzle or rotor choking. Size: KB. In Germany, enhancing renewable power generation represents a leading step to comply with the requirements of the Energiewende agenda. The geothermal reservoir in Oberhaching is assumed as a case study, with a gross electric power equal to MWel. The intent of this work is to design a hybrid binary geothermal power plant and to integrate it into the German energy by: 3.

    The basic energy balance cycle analysis was used as described in the text by DiPippo (DiPippo, ). The power output from the turbine was determined as a function of the change in total enthalpy across the turbine, total-to-total efficiency and the mass flow of the fluid. hs,, (1) W turbine is the power output of the turbine Cited by: 2. Literature. Features of Fuji Electric's Reaction Type Turbines: Low steam velocity. It is known that the rate at which water droplets and the solid particles contained in geothermal steam erode turbine blades is proportional to the 3 rd power of the steam velocity. As shown in the figure, the steam velocity of reaction stage is approximately one-half of that of impulse stage.


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Analysis of a radial-outflow reaction turbine concept for geothermal application by P. A. House Download PDF EPUB FB2

Get this from a library. Analysis of a radial-outflow reaction turbine concept for geothermal application. [P A House; Lawrence Livermore Laboratory.]. A radial outflow turbine of the Hero type, where the expansion process occurs in the rotor, and only reaction forces apply, appears to offer several advantages over axial or radial inflow turbines.

This was first investigated by Comfort [36] and subsequently by House [37]. A pure reaction turbine, for geothermal applications, was developed. This radial outflow reaction turbine is designed specifically to produce power from the expansion of saturated or compressed.

An innovative turbine configuration for geothermal applications was developed by the Italian turbines manufacturer EXERGY. The technology, known as the organic radial outflow turbine was designed, engineered, manufactured and tested in Italy, and has been operating since early Recently, the advantages of radial outflow turbines have been outstanding in various operating conditions of the organic Rankine cycle.

However, there are only a few studies of such turbines, and information on the design procedure is insufficient. The main purpose of this study is to provide more detailed information on the design methodology of the turbine.

Recently, the advantages of radial outflow turbines have been outstanding in various operating conditions of the organic Rankine cycle. However, there are only a few studies of such turbines, and information on the design procedure is insufficient.

The main purpose of this study is to provide more detailed information on the design methodology of the turbine. In this paper, a preliminary. The basic design of the turbine starts from the choice of the reaction: zero reaction, 50% reaction, and axial leaving velocity (variable reaction).

It should be emphasized however, that the designer is not limited to these three types and that in a three-dimensional design of the turbine reaction may vary continuously along the by: 2.

Radial outflow turbine. 65 Radial Inflow turbines These turbines provide greater amount of work per stage, ease of manufacture, and Ruggedness. Efficiency is equal to the Hydraulic turbines – Reaction Turbines. 89 Hydraulic turbines – Francis Turbine Inlet-exit velocity triangles Comparison of velocity triangles Comparison ofFile Size: 2MB.

The radial inflow turbine has a sister component, the radial outflow compressor. The radial outflow compressor has the same 90 degrees change of flow direction. The flow enters the compressor wheel in an axial direction at the hub, and leaves the wheel in a radial direction.

fundamental factors for the geothermal steam turbines. On the other hand, geothermal fluid, which operate steam turbines in geothermal power plants, contain several impurities and non-condensable gases as shown in Table 2. The chemical compositions of geothermal steam are quite complex and vary for each plant by: 8.

Welch and Boyle [18] designed a radial outflow turbine for geothermal power plants and its isentropic efficiency was over 80%.

Al Jubori et al. [19] conducted the 1D design and 3D analysis for a. The numerical modeling includes the fluid flow analysis through two geothermal turbines of 25 MW and MW, and the erosion study of different elements of these turbines, such as low pressure end.

power have isentropic efficiencies of 50% or less. The Euler Turbine is a radial outflow reaction turbine consist-ing of a nozzle row, blade row, and diffuser. Figure 3 shows the flow-path through the turbine. Vapor enters axially and is turned radially outward before entering the nozzle row.

The flow is ac. Radial outflow (reaction) turbines A radial outflow turbine of the Hero type, where the expansion process occurs in the rotor, and only reaction forces apply, appears to offer several advantages over axial or radial inflow turbines.

This was first investigated by Comfort and subsequently by : I.K. Smith. power through ORC. Axial turbines are commonly used but the radial type presents a lot of advantages (6) like good “off-design” efficiencies and high-pressure operating range.

Axial turbines are more used for processes involving large flow and low pressure, whereas it is the opposite for radial by: A new concept for power generation from solar, geothermal or other available low grade heat sources using a Heat Pipe Turbine or a Thermosyphon Rankine Engine (TSR) was developed and tested.

Maksiuta et al. [21] found that radial outflow turbines, as well as radial inflow turbines, had an appropriate velocity ratio (ν) of The velocity ratio is defined in Equation (6).

Abstract. Organic Rankine cycle (ORC) development started in the s and followed the development of steam engines. In spite of Carnot's foresight of using other fluids than water, it took until the middle of the 20th century to benefit from the thermodynamics analysis to take advantage of the inherent flexibility of the ORC, to optimize the use of low-quality heat sources.

This book provides a thorough description of actual working aerodynamic design and analysis systems, for both axial-flow and radial-flow turbines.

It describes the basic fluid dynamic and thermodynamic principles, empirical models and numerical methods used for the full range of procedures and analytical tools that an engineer needs for virtually any type of aerodynamic design or analysis.

A unique pure reaction turbine, for geothermal applications, has been developed. This radial outflow reaction turbine (RORT) is designed specifically to produce power from the expansion of saturated or compressed liquid at temperatures of less than /sup 0/C.

A radial turbine is a turbine in which the flow of the working fluid is radial to the shaft. The difference between axial and radial turbines consists in the way the fluid flows through the components (compressor and turbine).

Whereas for an axial turbine the rotor is 'impacted' by the fluid flow, for a radial turbine, the flow is smoothly orientated perpendicular to the rotation axis, and it.Downloadable (with restrictions)!

Optimisation of organic Rankine cycles (ORCs) for binary cycle applications could play a major role in determining the competitiveness of low to moderate renewable sources. An important aspect of the optimisation is to maximise the turbine output power for a given resource.

This requires careful attention to the turbine design notably through numerical Cited by: are: organization of how-to training, conferences, development of a best-practice book about renewable energy projects, creation of a regional energy concept and development plan.

Plans to the future: to build a biomass and biogas power station, that will create an independent energy Size: KB.