Last edited by Grojora
Monday, May 18, 2020 | History

2 edition of High-efficiency Brayton-cycle engines for marine propulsion found in the catalog.

High-efficiency Brayton-cycle engines for marine propulsion

David Gordon Wilson

High-efficiency Brayton-cycle engines for marine propulsion

by David Gordon Wilson

  • 124 Want to read
  • 4 Currently reading

Published by Massachusetts Institute of Technology, Sea Grant College Program in Cambridge, Mass .
Written in English

    Subjects:
  • Marine gas-turbines.

  • Edition Notes

    Statementby David Gordon Wilson, Theodosios P. Korakianitis.
    SeriesMITSG -- 85-10.
    ContributionsKorakianitis, Theodosios P.
    The Physical Object
    Pagination109 p. ;
    Number of Pages109
    ID Numbers
    Open LibraryOL16109698M

      Marine propulsion In this area of application, the gas-turbine engine has two advantages over steam- and diesel-driven plants: it is lightweight and compact. During the early s a ship powered by a gas turbine capable of 20, horsepower was successfully tested at sea by the U.S. Navy over a period of more than 5, hours. Energies, an international, peer-reviewed Open Access journal. Dear Colleagues, This Special Issue is dedicated to recent advances in stationary Organic Rankine Cycle (ORC) technology across scales and heat-source temperatures.

    Power Train Technologies for Reducing Load-Specific Fuel Consumption Technologies for reducing fuel consumption of medium-and heavy-duty vehicles depend on the power train type. For instance, replacing gasoline engines with diesel engines in medium-duty trucks is a very effective technology, but heavy-duty trucks are already more than An analysis was carried out for different thermodynamic cycles of power plants with air turbines. A new modification of a gas turbine cycle with the combustion chamber at the turbine outlet has been described in the paper. A special air by-pass system of the combustor was applied, and in this way, the efficiency of the turbine cycle was increased by a few by:

    @article{osti_, title = {Experiments and modelling of surge in small centrifugal compressor for automotive engines}, author = {Galindo, J and Serrano, J R and Climent, H and Tiseira, A}, abstractNote = {In this paper the surge phenomenon in small centrifugal compressors used for turbocharging internal combustion engines is analyzed. Non-intercooled, recuperated Brayton cycle Horizontal single shaft helium gas turbine Magnetic bearings or oil bearings with gas seal on rotor Separate vessel units for gas turbine and heat exchangers Reactor temp: to oC Brayton Cycle efficiency: to % File Size: 1MB.


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High-efficiency Brayton-cycle engines for marine propulsion by David Gordon Wilson Download PDF EPUB FB2

A gas turbine, also called a combustion turbine, is a type of continuous and internal combustion main elements common to all gas turbine engines are: an upstream rotating gas compressor; a combustor; a downstream turbine on the same shaft as the compressor.; A fourth component is often used to increase efficiency (on turboprops and turbofans), to convert power into mechanical or.

The result is that most engines in service today suffer from two major problems: low fuel efficiency and emission of high levels of polluting gases in the exhaust gases.

The current state of propulsion engines or distributed generation technologies using heat engines shows Author: Anatoli A. Borissov, Alexander A. Borissov, Kenneth K. Kramer. The Brayton cycle is a thermodynamic cycle named after George Brayton that describes the workings of a constant-pressure heat original Brayton engines used a piston compressor and piston expander, but more modern gas turbine engines and airbreathing jet engines also follow the Brayton cycle.

Although the cycle is usually run as an open system (and indeed must be run as such if. The Brayton Cycle. Large gas turbines operations are based on the Brayton thermodynamic cycle. Understanding of the Brayton cycle concept is an essential issue because MTs are a subset of gas turbines and they have a similar cycle.

This cycle was proposed by George Brayton (–92), who was an American engineer, in Provides a Path to Future High-Power Electric Propulsion Missions Closed-Brayton-cycle conversion technology has been identified as an excellent candidate for nuclear electric propulsion (NEP) power conversion systems.

Advantages include high efficiency, long life, and high power density for power levels from about 10 kWe to 1 MWe, and beyond. Brayton Cycle – Turbine Engine. Inan American engineer, George Bailey Brayton advanced the study of heat engines by patenting a constant pressure internal combustion engine, initially using vaporized gas but later using liquid fuels such as kerosene.

This heat engine is known as “Brayton’s Ready Motor”.It means, the original Brayton engine used a piston compressor and piston. The high efficiency of StarRotor compressors and expanders enables Brayton cycle engines at scales much smaller than would be feasible with other technologies.

Their smooth, efficient, purely rotational operation delivers high throughputs in a compact form, and their positive displacement flexibility allows them to maintain their efficiency. @article{osti_, title = {Design of high-efficiency turbomachinery and gas turbines}, author = {Wilson, D.G.}, abstractNote = {The present treatment of pump, compressor, and turbine turbomachinery emphasizes thermodynamics, design methods, and the use that can be made of relatively simple rules for the choosing of cycle types, vector diagrams, blading types, heat exchanger configurations.

A combined cycle power plant is an assembly of heat engines that work in tandem from the same source of heat, converting it into mechanical land, when used to make electricity the most common type is called a combined cycle gas turbine (CCGT) same principle is also used for marine propulsion, where it is called a combined gas and steam (COGAS) plant.

In the last few decades, gas turbines have been extensively used for various applications such as electric power generation, marine & aerospace propulsion, oil rigs etc. Modern gas turbines and. Propulsion System Cycles.

which are widely used in reciprocating engines, the Brayton cycle, which is used in continuous-flow systems such as gas turbines and ramjet engines, and the Humphrey.

The ideal Joule–Brayton cycle. The Joule–Brayton cycle will be first described as an ideal cycle, where the fluid is assumed to be an ideal gas having a constant flowrate and constant composition throughout all the components, and the thermodynamic processes will be ideal in all the components, that is, without any by: 1.

The “Gas Turbines” book in question is several hundred pages long and besides the basics, covers some of the more complex and lengthy work in recent gas turbine development. Condensing it all here was not practical. What is here however, does give the reader the basic theory and pr actice of gas turbines in simple cycle and combined cycle.

2 History of Jet Engine. Early Stage and Brayton Cycle. The modern day jet engine wasn’t developed until the early 20th century, and didn’t see proper use until the latter end of WWII. However, the concept of jet propulsion and its precursors had been around for centuries.

- Explore rosshenryd's board "Work" on Pinterest. See more ideas about Gas turbine, Steam turbine and Jet engine pins. Propulsion system definition to support emerging unmanned underwater vehicle (UUV) studies becomes of increasing significance as mission complexity grows. Substantial experience in the design of closed Brayton cycle (CBC) engines for marine applications has been applied to a range of UUV requirements and the results of system integration Cited by: 6.

Gas Turbine Market Size By Capacity (50 KW, 50 KW to KW, > KW to 1 MW, > 1 MW to 30 MW, > 30 MW to 70 MW, > 70 MW to MW, > MW), By Product (Aero-Derivative, Heavy Duty), By Technology (Open Cycle, Combined Cycle), By Application (Power Plants, Oil & Gas, Process plants, Aviation, Marine), Industry Analysis Report, Regional Analysis, Application Development Potential.

30 Jan - Explore jirogearloose's board "New types of motors", which is followed by people on Pinterest. See more ideas about Engineering, Combustion engine and Mechanical engineering pins.

Thus, the natural gas consumption in a simple-cycle gas turbine would be: 10, / 21, = pounds/kwh = kg/kwh. As another example, a typical diesel oil has a net heating value of.

FIGURE Airliner high bypass–ratio turbofan engine in its nacelle. SOURCE: A.H. Epstein,Aeropropulsion for commercial aviation in the twenty-first century and research directions needed, AIAA Journal 52(5), doi/1. Combined Cycle Plant for Power Generation: Introduction.

Flexicycle power plants combine the advantages of high efficiency in simple cycle and the modularity of multiple engines supplying the steam turbine. The steam turbine can be run with only 25 percent of the engines at full load, or 50 percent of the engines at half load.

Isentropic efficiency is defined as the ratio of the ideal compression work to the actual compression work for the compression process and for the expansion process; it is the ratio of the actual expansion work to the ideal expansion work.

Examples of gas turbines for marine vessel Most shaft power gas turbine engines including those in.The second Brayton cycle transmits mechanical energy as well as thermal energy from exhaust gases to the first Brayton cycle.

The first Brayton cycle provides to the second O2 compressed from the MIEC membrane. By means of this engine, the emission of NOx into the atmosphere is avoided by the separation of N2 in the MIEC membrane.