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Wyszukujesz frazę "heat waste" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Usage of thermosyphon for avoiding of low grade corrosion on the surfaces of air heaters and increasing of thermal efficiency of steam generators PK-38-4
Autorzy:
Iliev, I.
Lazarov, S.
Powiązania:
https://bibliotekanauki.pl/articles/175291.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heat pipes
thermosyphon
waste heat recovery
air heater
Opis:
The paper presents and analyzes new type air heater, which uses the thermosyphon’s technology, aims to replace the existing horizontal tubular air heater of first-degree for steam generators Nos.5,6,7 and 8 at TPP Maritsa East-2 in Bulgaria. The main advantage of the air heater with heat pipes is the ability to lower the temperature of exhaust gases to levels that are impossible for the conventional tubular air heaters, thus increasing the efficiency of the steam generator. Along with the increased energy efficiency, reductions in CO2, SOx and NOx emissions into the atmosphere are achieved. The preheating of the air, used for air combustion by recirculation relieving the operation and improving the combustion in the steam generator, is also reduced.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2014, 126; 211-219
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept for energy recovery in city buses based on organic Rankine cycle system
Autorzy:
Pałczyński, T.
Powiązania:
https://bibliotekanauki.pl/articles/175273.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
city bus dynamics
waste heat energy recuperation
Simulink
Opis:
This paper presents a concept for energy recovery in city buses, based on organic Rankine cycle (ORC) system modeling. ORC modeling provides preliminary parameters which enable estimation of transient state energy flow, especially at those points in the system where it can mostly easily be recovered (exhaust, cooling and brakes). The paper describes an easy-to-use procedure for time-domain analysis of velocity waves in a real driving cycle. The results were combined with a dynamic system model of a city bus in block diagram environment, taking into account the influence of parameters assumed to have the greatest impact on the model’s accuracy. Average fuel consumption and producer specifications (maximum vehicle speed, rate of acceleration) were used as reference parameters. A procedure was developed for tuning the simulation model according to the reference parameters. The results of the simulation, based on real measurements of Lodz city traffic parameters, are discussed and an estimate is made of the potential for energy recovery in city buses.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2016, 131; 131-150
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The thermodynamic analysis of the Szewalski hierarchic vapour cycle cooperating with a system of waste heat recovery
Autorzy:
Ziółkowski, P.
Kowalczyk, T.
Hernet, J.
Kornet, S.
Powiązania:
https://bibliotekanauki.pl/articles/175466.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
binary cycle
waste heat
ORC
thermodynamical analysis
numerical
analysis
CFM (computational flow mechanics)
Opis:
In this paper, thermodynamic analysis of the Szewalski hierarchic vapour cycle cooperating with a system of waste heat recovery from exhaust gases are presented. According to that purpose, the CFM (computation flow mechanics) approach has been used correctly. In this paper, traditional steam cycle, the bottoming organic Rankine cycle (ORC) and a system of waste heat recovery with use of water with temperature 90 ◦C have been analyzed. The Szewalski binary vapour cycle is providing steam as the working fluid in the high temperature part of the cycle, while another fluid – organic working fluid – as the working substance substituting conventional steam over the temperature range represented by the low pressure steam expansion. The steam cycle for reference conditions, the Szewalski binary vapour cycle, and the Szewalski hierarchic vapour cycle cooperating with a system of waste heat recovery have been comprised. Four working fluids in the low temperature part of binary cycle such as ammonia, propane, isobutene and ethanol have also been investigated. Moreover, the Szewalski cycle is a good resolution for proper using heat flux received from the exhaust gases heat regeneration system.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2015, 129; 51-75
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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