Primary Surface Recuperator for Vehicular Gas Turbine

Jen, H. F.

doi:10.4271/871590

Cited by 5 publications

(2 citation statements)

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“…It is not the purpose of this paper to select recuperator types for particular applications, but it is germane to mention that a wide range of surface geometries, and construction configurations are available for user evaluation/selection. The major types of recuperators include the following: (1) plate-fin (Kretzinger, Valentino, and Parker, 1982), (2) prime surfaces (Jen, 1987, andParsons, 1985), (3) plain tubes (Kind andRuhe, 1977, andDiesel andGas Turbine Worldwide, 1984), (4) enhanced tubes (Gas Turbine World, 1978), and (5) finned tubes (Nakhamkin et al, 1986). With increasing emphasis being placed on engine-heat exchanger size compatibility, it can be projected that plain tubular geometries (yielding volume-intensive units) will not be featured prominently in the future.…”

Section: Recuperatormentioning

confidence: 99%

The Increasing Role of Heat Exchangers in Gas Turbine Plants

McDonald

1989

Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration

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In the introductory phase of gas turbine deployment for industrial service there was a natural reluctance to incorporate heat exchangers, although some variants included recuperators and intercoolers to enhance performance, since only modest values of compressor and turbine efficiency could be realized. Today, following half a century of intensive development, the situation is quite different, since high turbomachinery efficiencies contribute to attractive levels of performance for contemporary simple cycle plants. Because further aerodynamic advancements are likely to be incremental in nature, significant increase in plant performance can only be realized by either going to higher turbine inlet temperature, or utilizing more complex thermodynamic cycles, or both. It is in the latter two cases that heat exchangers will play an increasing role in the evolutionary advancement of gas turbine plant efficiency. This paper highlights the potential use of heat exchangers for a wide range of gas turbine applications, including industrial prime-movers, electrical power generation, marine service, and perhaps their ultimate use in aircraft propulsion systems. In the last decade, significant heat exchanger technology advancements have been made, to the point where previous impediments (to their widespread acceptance) associated with reliability, have been overcome. It is encouraging that today many proven heat exchanger hardware options are available to gas turbine users, and this will enhance their utilization across the full spectrum of applications, and indeed in the long-term may well make the simple cycle gas turbine obsolete.

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Section: Recuperatormentioning

confidence: 99%

The Increasing Role of Heat Exchangers in Gas Turbine Plants

McDonald

1989

Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration

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“…over 15,000) is the AGT-1500 engine for the U.S. Army MI main battle tank. This engine utilizes an annular primary surface recuperator ( Jen, 1987, Kadambi, 1992. This is an application where the recuperator plays an important role in achieving a flat specific fuel consumption (SFC) curve, since a large percentage of operating time is spent at low power levels.…”

Section: Introductionmentioning

confidence: 99%

Emergence of Recuperated Gas Turbines for Power Generation

McDonald

1999

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

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In the emerging deployment of microturbines (25–75Kw), a recuperator is mandatory to achieve thermal efficiencies of 30 percent and higher, this being important if they are to successfully penentrate the market currently dominated by Diesel generator sets. This will be the first application of gas turbines for electrical power generation, where recuperators will be used in significant quantities. The experience gained with these machines will give users’ confidence that recuperated engines will meet performance and reliability goals. The latter point is particularly important, since recuperated gas turbines have not been widely deployed for power generation, and early variants were a disappointment. Recuperator technology transfer to larger engines will see the introduction of advanced heat exchanged industrial gas turbines for power generation in the 3–15 Mw range. After many decades of development, existing recuperators of both primary surface and plate-fin types, have demonstrated acceptable thermal performance and integrity in the cyclic gas turbine environment, but their capital costs are high. A near-term challenge to recuperator design and manufacturing engineers is to establish lower cost metallic heat exchangers that can be manufactured using high volume production methods. A longer term goal will be the development and utilization of a ceramic recuperator, since this is the key component to realize the full performance potential of very small and medium size gas turbines.

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Gas turbine recuperator renaissance

McDonald

1990

Heat Recovery Systems and CHP

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Primary Surface Recuperator for Vehicular Gas Turbine

Cited by 5 publications

References 0 publications

The Increasing Role of Heat Exchangers in Gas Turbine Plants

The Increasing Role of Heat Exchangers in Gas Turbine Plants

Emergence of Recuperated Gas Turbines for Power Generation

Gas turbine recuperator renaissance

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