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Dissertations / Theses on the topic 'Condensers (Steam) Heat'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Pearce, Richard E. Becker Bryan R. "A computational model of steam surface condenser performance." Diss., UMK access, 2005.

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Thesis (Ph. D.)--School of Computing and Engineering and Dept. of Mathematics and Statistics. University of Missouri--Kansas City, 2005.<br>"A dissertation in engineering and mathematics." Advisor: Bryan R. Becker. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed March 12, 2007. Includes bibliographical references (leaves 216-220). Online version of the print edition.

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2

Wedding, Scott B. "Static Mixing Spacers for Heat Transfer ImprovementApplication in Air Cooled Steam Condensers." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1429047134.

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3

Smith, Alan. "The effects of inlet water temperature on condensing film coefficients /." Online version of thesis, 1995. http://hdl.handle.net/1850/11923.

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4

Smit, Leslie van Zyl. "Inlet manifold tests and performance evaluation of dephlegmators in air-cooled steam condensers." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51800.

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Thesis (MScEng)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: Measurements on air-cooled reflux steam condensers or dephlegmators at different power plants have shown that sections of these units do not transfer heat effectively over a range of operating conditions. The ineffective sections may be due to flooding in the finned tubes although entrainment of condensate in certain steam inlet manifolds is usually the main reason for the poor performance. In this dissertation factors that limit effective dephlegmator operation are discussed and the influence of two inlet manifold

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5

Bredell, J. R. (Johann Richard). "Numerical investigation of fan performance in a forced draft air-cooled steam condenser." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/21201.

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Thesis (MScIng)--University of Stellenbosch, 2005.<br>ENGLISH ABSTRACT: Forced draft air-cooled steam condensers (ACSCs) consisting of multiple fan units are used in direct cooled power plants to condense steam in a closed steam cycle. Axial flow fans located below an A-frame configuration of finned tube heat exchanger bundles, force ambient air through the system. In so doing, heat from the condensing steam is rejected to the environment via the finned tubes. The performance of an air-cooled system is proportional to the air mass flow rate and the temperature difference between the finne

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6

Louw, Francois G. "Performance trends of a large air-cooled steam condenser during windy conditions." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6593.

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7

Tubman, Ian McCrea. "An analysis of water for water-side fouling potential inside smooth and augmented copper alloy condenser tubes in cooling tower water applications." Master's thesis, Mississippi State : Mississippi State University, 2003. http://library.msstate.edu/etd/show.asp?etd=etd-12122002-092733.

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8

Angula, Ester. "Numerical performance evaluation of a delugeable flat bare tube air-cooled steam condenser bundle." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97151.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: In this study, one and two-dimensional models are developed for the evaluation of the thermal performance of a delugeable flat tube bundle to be incorporated in the second stage of an induced draft hybrid (dry/wet) dephlegmator (HDWD) of a direct air-cooled steam condenser (ACSC). Both models are presented by a set of differential equations. The one-dimensional model is analysed analytically by using three methods of analysis which are: Poppe, Merkel, and heat and mass transfer analogy. The two-dimensional model is analys

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9

Karve, Madhura Shreeram. "Numerical Analysis of Heat Transfer Enhancement and Pressure Drop Reduction for an A-frame Air Cooled Steam Condenser." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307440507.

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10

Szöcs, Ladislav. "Povrchový kondenzátor pro parní turbinu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230193.

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The aim of this thesis is to design a surface condenser with lateral exhaust. A research in the field of surface condensers with lateral exhaust takes place before the design. Core of the thesis is a thermodynamic design of the heat exchanger, calculation of pressure losses on the side of coolant water, check of the tube bundles from standpoint of oscillation and a design of air removal pipeline. Finally a design of the condenser is supported with a drawing attached in the supplement.

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11

Stoddard, Ryan Manse. "Experimental Investigations on Non-Wetting Surfaces." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103477.

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Superhydrophobic (SHS) and lubricant-infused surfaces (LIS) exhibit exceptional non-wetting characteristics that make them attractive for energy production applications including steam condensation and fouling mitigation. The dissertation work focuses on application of non-wetting surfaces to energy production using a systematic approach examining each component of surface fabrication in three functional areas. First, SHS and LIS are fabricated using robust, scalable methods and tested for durability in heated, wet conditions and under high-energy water jet impingement. Clear performance diffe

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12

Wahlberg, Tobias. "Modeling of Heat Transfer." Thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-12217.

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Modeling of heat transfer using Dymola. In this report a evaporator, economizer and superheater where modeled. The report describes how the models where modeled and what input was most suitable for a accurate model.

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13

Mifek, Roman. "Výpočty kondenzátorů páry." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230736.

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This thesis deals with the calculation procedures for determining the heat transfer coefficient for steam condensers. The first section provides a basic overview for industrial steam condensers and possible procedure for selecting the appropriate type of tube condenser. The next section describes the types of condensation and equations for determining the heat transfer coefficient for various geometries of tubular condensers. In the final section there is performed practical calculation of condenser in Maple software using the above relations. The results obtained in this calculation are compa

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14

Janíček, Martin. "Povrchový kondenzátor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231116.

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This diploma thesis deals with design of surface condensers with axial steam inlet which are widely used in the energy industry. In the practical part, hydraulic and heat calculation, dump-tube design and calculation of by-pass were made to design surface condenser with axial steam inlet. Two types of surface condenser were designed in order to compare impact of two different heat transfer tube materials. Stainless steel and copper-nickel alloy were used for condenser calculation. Stainless steel and copper-nickel alloy condensers were compared in order to weight calculation and condenser pric

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15

Juráš, Filip. "Kondenzátor páry." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319685.

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The Master´s thesis is dealing with water-cooled condensers and is splitted into three main parts. The first section provides general knowledge about condensers and heat exchangers, including the basic information of hydrophobic surfaces. These surfaces were used during verifying the impact of hydrophobicity on the heat exchange in water steam. The second section describes an experimental testing. It shows the difference between hydrophobic and nonhydrophobic surfaces and their impact on the heat exchange. The third and the last part of this thesis is design and calculation of water-cooled con

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16

Kotas, Jakub. "Parní turbína - návrh potrubní trasy kondenzátu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417534.

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The master thesis deals with the design, tracing and dimensioning of condensate pipeline. In the beginning, a preliminary calculation of heat balance is done. It is followed by a description of the main condensate system supplemented by the computational design of pipeline and the calculation of pressure losses in this pipeline. The crucial part of the thesis is the calculation of pressure losses, which is done in two ways. The first approach to calculation of pressure losses in the pipeline is calculated using values of representative resistance coefficient for pipe ele-ments using Idelchik l

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17

Čupera, Pavel. "Trigenerace a její využití v praxi." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217827.

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e master's thesis clarifies the concept of trigeneration and the principle of absorbing cooling. Compare the advantages and disadvantages of this method of manufacture cool with compressor cooling. It presents an overview of the implementation of a developing cold absorption and performance. Acquainted with the types of absorption chillers of the two leading suppliers, their characteristics and existing applications of these refrigeration units in operation in the Czech Republic and abroad. It also assesses the possibility of using these units in conjunction with a cogeneration unit powered by

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18

Narainsingh, Soomesh. "Effects of condenser performance on thermal heat rate." Thesis, 2014. http://hdl.handle.net/10210/9695.

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M.Tech. (Mechanical Engineering)<br>Eskom fossil fuel power stations operate under various conditions and the ageing fleet of fossil fuel power stations are under strain due to the rising demand in electricity. The quest for cheaper electricity in growing businesses and bringing foreign investment into South Africa is significant for economic growth. Therefore, minimizing operation costs and improving availability, reliability and thermal heat rate are key objectives for the operation of the business. Thermal heat rate calculation is a method used to assess the performance of fossil fuel power

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19

Hsu, Yi-Hsiang, and 徐益祥. "Thermal-Hydraulic Performance Analysis and Development of the Computer Aided-Design Softwares for Heat Recovery Steam Generator and Surface Condensers of Steam Power Plant." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/57441759357228331876.

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碩士<br>國立成功大學<br>機械工程學系專班<br>91<br>This paper analyzed thermal-hydraulic performances of the circular finned-tube heat recovery steam generator(HRSG) and surface condensers of power plant. Compare actual operating data of HSIN-TA power station with theory. Then, LMTD（Log-Mean Temperature Difference） and ε-NTU（Effectiveness -Number of Transfer Unit）methods is used, to develop a set of interactive computer-aided design software, written in Microsoft Visual Basic Language. This software allow the operating and maintenance personnel to acquire data promptly and accurately, grip the HRSG’s and conde

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20

XU, JIN-RONG, and 徐錦榮. "A study on heat rate and condenser maintenance time of the steam power unit." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/15967733523277733791.

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