Rohrhydraulik

Richter, Hugo

doi:10.1007/978-3-662-00566-8

Cited by 18 publications

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“…The pressure loss for e.g. a sharp-edged entrance can be found in [14] or [15] and is identical 0.5. …”

Section: Model Of the Headermentioning

confidence: 99%

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How can the heat transfer correlations for finned-tubes influence the numerical simulation of the dynamic behavior of a heat recovery steam generator?

Walter¹,

Hofmann²

2011

Applied Thermal Engineering

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This paper presents the results of a theoretical investigation on the influence of different heat transfer correlations for finned-tubes to the dynamic behavior of a heat recovery steam generator (HRSG). The investigation was done for a vertical type natural circulation HRSG with 3 pressure stages under hot start-up and shutdown conditions. For the calculation of the flue gas side heat transfer coefficient the well known correlations for segmented finned-tubes according to Schmidt, VDI and ESCOA T M (traditional and revised) as well as a new correlation, which was developed at the Institute for Energy Systems and Thermodynamics, are used. The simulation results show a good agreement in the overall behavior of the boiler between the different correlations. But there are still some important differences found in the detail analysis of the boiler behavior. ζ Pressure loss coefficient [-]

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“…The pressure loss for e.g. a sharp-edged entrance can be found in [14] or [15] and is identical 0.5. …”

Section: Model Of the Headermentioning

confidence: 99%

“…For a sharp-edged entrance the pressure loss coefficient ζ in is identical to 0.5 according to [14]. In case of reverse flow at the tube inlet the pressure loss due to acceleration will be identical to zero with the help of the operator…”

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confidence: 99%

How can the heat transfer correlations for finned-tubes influence the numerical simulation of the dynamic behavior of a heat recovery steam generator?

Walter¹,

Hofmann²

2011

Applied Thermal Engineering

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“…Chancellor Bismarck gradually veered away from classical liberal economic policies in the 1870s, embracing many conservative and progressive policies, including high tariffs, nationalization of railroads, and compulsory social insurance. [37][38] [39] This political and economic nationalism also reduced the fortunes of the German and Canadian classical liberal parties. France, like Britain, also entered into a prolonged stagnation that extended to 1897.…”

Section: Global Protectionismmentioning

confidence: 99%

Panic of 1873

2010

Encyclopedia of U.S. Political History

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The Panic of 1873 was a financial crisis that triggered a depression in Europe and North America that lasted from 1873 until 1879, and even longer in some countries. In Britain, for example, it started two decades of stagnation known as the "Long Depression" that weakened the country's economic leadership. [1] The Panic was known as the "Great Depression" until the events in the early 1930s took precedence. [2] The Panic of 1873 and the subsequent depression had several underlying causes, of which economic historians debate the relative importance. Postwar inflation, rampant speculative investments (overwhelmingly in railroads), a large trade deficit, ripples from economic dislocation in Europe resulting from the Franco-Prussian War (1870-1871), property losses in the Chicago (1871) and Boston (1872) fires, and other factors put a massive strain on bank reserves, which plummeted in New York City

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Lechner¹

1980

Untersuchung Des Betriebs- Und Geräuschverhaltens Einer Verstellbaren Axialkolbenpumpe Mit Ventil-Vorsteuerung

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Rohrhydraulik

Cited by 18 publications

References 0 publications

How can the heat transfer correlations for finned-tubes influence the numerical simulation of the dynamic behavior of a heat recovery steam generator?

How can the heat transfer correlations for finned-tubes influence the numerical simulation of the dynamic behavior of a heat recovery steam generator?

Panic of 1873

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