Temat: cooling temperature - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The effect of cooling water temperature on the performance of a BWR nuclear power plant
Autorzy:: Laskowski, Rafał
Theimech, Mohamad
Uzunow, Nikołaj
Powiązania:: https://bibliotekanauki.pl/articles/2195750.pdf
Data publikacji:: 2021
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:: nuclear power plant
cooling system
cooling water temperature
boiling water reactor
BWR
elektrownia jądrowa
układ chłodzenia
temperatura wody chłodzącej
reaktor wrzący
Opis:: Although PWR reactors make up the large majority of the world's nuclear power plants, BWR reactors also have a share in this industry. It is difficult to find data on the performance of a BWR power plant in off-design and variable load conditions in the literature. Therefore, the paper presents how cooling water temperature affects the efficiency and power output of a BWR unit. The qualitative effect of changes and the trend related to the effect of cooling water temperature on the performance of the power plant are known, but the quantitative effect has to be determined for specific power units. Depending on the location of the nuclear power plant, various temperatures of cooling water for use in condensers and thus various operating conditions of the cooling system can be achieved. To analyze how cooling water temperature affects the performance of the power unit, a model of a BWR power plant was developed using the Ebsilon software. The model was based on data provided in [1] concerning LaSalle County Nuclear Generating Station. Calculations showed that within the examined range of cooling water temperatures at the condenser inlet between 10 and 28oC the gross power output of the unit decreases by 91.405 MW and the gross efficiency drops by 2.773 percentage points.
Źródło:: Modern Engineering; 2021, 3; 5--13
2450-5501
Pojawia się w:: Modern Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of speed and load on the engine temperature at an elevated temperature cooling fluid
Autorzy:: Krakowski, R.
Powiązania:: https://bibliotekanauki.pl/articles/243666.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
cooling system
coolant temperature
Opis:: In this article has been found that the most popular and widely used method of cooling is liquid cooling, which ensures uniformity of temperature around the combustion chamber and easy acquisition and transfer of heat, although the properties of water are limited by maximum temperature of the coolant. Preliminary scientific research of such a system indicates the possibility of increasing overall efficiency and reducing toxic components in exhaust gases at low engine loads when the engine exhaust temperature of the classic system is too low for efficient catalytic action. This paper presents the dynamometer test stand designed and built using original components of diesel engine 4CT90 production of WSW "ANDORIA" SA. Presented system was designed for the four cylinder with indirect fuel injection system. Research was made on the engine dynamometer stand, which was equipped with standard measure devices (measures: speed, torque, temperatures, flows) and exhaust gas analysers. The temperature of this liquid was increased to the higher level than temperature of boiling water in normal conditions. Overpressure inside the cooling system was limited to 0.3 MPa, the temperature inside the cooling system was increased to 115–120°C. During the test, the cooling system was filled with coolant at 90%. The selected results of investigations of the cooling system for the combustion engine working with higher temperature of the cooling liquid, where the influence of speed and load on the engine temperature were presented.
Źródło:: Journal of KONES; 2013, 20, 4; 185-192
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Cooling potential assessment of a regenerative indirect evaporative cooler
Autorzy:: Comino, Francisco
Romero, María Jesús
Ruiz de Adana, Manuel
Powiązania:: https://bibliotekanauki.pl/chapters/31233772.pdf
Data publikacji:: 2021
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: dew-point temperature
cooling system
heat and mass exchanger
experimental and numerical investigations
Opis:: Regenerative indirect evaporative cooling (RIEC) systems are an interesting alternative to conventional air-cooling systems based on direct expansion units. In the present work, the main objective was to experimentally determine the performance of a RIEC air-cooling system under different inlet air conditions. Moreover, a mathematical RIEC model based on modified ε-NTU numerical method was developed and validated. The experimental RIEC results showed high cooling capacity, with dew point effectiveness values up to 0.91. The accuracy obtained of the mathematical model was more than acceptable. Therefore, it can be used properly to study the global behaviour of a RIEC. These air-cooling systems would contribute to achieve the European objectives of nZEB.
Źródło:: Innovations – Sustainability – Modernity – Openness. Modernity in engineering; 49-54
9788366391901
Dostawca treści:: Biblioteka Nauki

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