Wyniki wyszukiwania - BazTech

1

Numerical study of internal flue gas recirculation system applied to methane-hydrogen powered gas microturbine combustor

Fąfara Jean-Marc, Modliński Norbert

Combustion Engines

|

2023

|

R. 62, nr 1

63--77

EN

Sources of renewable energy have been increasingly used all over the world. This kind of energy is highly desirable because of its unlimited availability. Unfortunately, renewable energy production very much depends on weather conditions. Consequently, it is necessary to store the produced excess energy in order to use it when needed. There is a technology able to produce a hydrogen/methane fuel from excess renewable energy, which may be stored. This technology is called the Power-to-Gas technology (P2G). Since the efficiency of this technological process depends on the hydrogen fraction in the renewable energy fuel, there is a need to increase this fraction. Concurrently, the gas microturbine technology is increasingly widely used in various industries (aviation, energy, automotive, military, etc). The P2G technology and the gas microturbine technology are likely to be integrated in the near future and, as mentioned above, the hydrogen fraction in the methane-hydrogen fuel will tend to increase. In order to power a gas microturbine with the methane-hydrogen fuel, it will be necessary to modify the combustor to avoid an excessive temperature increase and flashbacks. In this paper it is proposed to apply an autonomous internal exhaust gas recirculation system to resolve the hydrogen combustion problems indicated above. The operating principle and the proposed design of the recirculation system and the latter’s impact on the combustor’s operating parameters and emissivity (NOx and CO) are presented.

2

Wewnętrzny układ r ecyrkulacji spalin w mikroturbinach gazowych jako me toda do współspalania paliw z e zwiększonym udziałem wodoru

Fąfara Jean-Marc, Modliński Norbert

Zeszyty Energetyczne

|

2020

|

T. 7

107--127

PL

Niniejszy artykuł prezentuje podstawowe charakterystyki technologii Power-to-Gas (P2G), mikroturbin gazowych oraz zasadność i trudności wzajemnego integrowania powyżej wymienionych technologii. W dalszej części publikacji zostanie opisana nowa koncepcja samoistnego wewnątrzkomorowego zawracania spalin w komorach spalania mikroturbin gazowych, której zadaniem będzie umożliwienie zintegrowania technologii P2G z mikroturbinami.

3

Mikrosieć energetyczna z turbiną gazową i instalacją PV

Grech R., Michta E.

Pomiary Automatyka Kontrola

|

2014

|

R. 60, nr 11

982--984

PL

W artykule przedstawiono mikrosieć energetyczną z mikroturbiną gazową i instalacją PV. Dla takiej mikrosieci zaproponowano dwupoziomową strukturę systemu do zarządzania pracą mikrosieci. Przedstawiono podstawy zarządzania pracą mikrosieci z zastosowaniem przetwarzania regułowego.

EN

The article presents microgrid with gas micro turbine and PV instal-lation. For such microgrid a two-level structure of a system to man-age the work of microgrid is proposed. Basics of a microgrid man-agement using the rule base processing are outlined. Figure 1 shows the structure of microgrid, which distinguishes two levels of functionality associated with the management of microgrid marked in the figure 1 as LSM (local microgrid controller) and CSM (microgrid central controller). Characteristics of power generation in the present system is dependent on the performance characteristics of each generation equipment, as shown in Figure 2. One of the key issues related to the efficient functioning of the Smart Metering and Smart Grid is a solution of a data processing and the implementation of control functions at the level of microgrid. In such a microgrid structure it is proposed to introduce a rule-based processing on the level of controllers CSM and LSM. The use of rule-based processing requires a transition from numerical record to symbolic record, which allow to achieve the universality that define the state of the current process, eg electricity consumption in a given area at a given level and not numerical values, but for example in the form of terms Green (G), Yellow (Y) or Red (R). Determination of the current state of the energy consumption in different areas of the LSM is the basis for rule-based processing and requires the processing of the rules. The set of example rules is shown at the end of the article.