Wyniki wyszukiwania - BazTech

1

Experimental studies of packed-bed Thermal Energy Storage system performance

Ochmann Jakub, Bartela Łukasz, Rusin Krzysztof, Jurczyk Michał, Stanek Bartosz, Rulik Sebastian, Waniczek Sebastian

Journal of Power Technologies

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2022

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Vol. 102, nr 1

37--44

EN

This paper contains an experimental analysis of a heat storage tank's heat loss and exergy efficiency using a basalt porous bed as a storage material. The basic parameters of the laboratory bench with measuring equipment are presented and the experimental procedure is discussed. The methodology for evaluating the energy potential of the heat storage process for large-scale energy storage systems is described. The main novelty of the presented system is the application of the slenderness of the heat accumulator, which corresponds to the development of the system in a post-mining shaft. Based on the analysis of the experiment, the exergy cycle efficiency of the heat storage unit was determined to equal 52.3%, and the energy efficiency equal to 96.6%.

2

Energy analysis of underwater energy storage system based on compressed air

Sałyga S., Szabłowski Ł, Badyda K.

Transactions of the Institute of Fluid-Flow Machinery

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2016

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nr 131

151--160

EN

Due to the very intensive development of renewable energy sources, producing electricity in irregular and unpredictable way, storage plays an increasingly important role in the current energy system. Currently used systems for storing electricity on a large scale include only pumped storage and compressed air energy storage. The paper presents energy analysis of three underwater energy storage systems based on compressed air without recuperation, and with recuperation and adiabatic. Balance calculations for selected conﬁguration of the system was performed. The eﬃciency of storage of electricity was calculated using four diﬀerent deﬁnitions.

3

Bateryjny i pneumatyczny zasobnik energii elektrycznej – opis koncepcji

Paska J., Kłos M., Michalski Ł.

Przegląd Elektrotechniczny

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2012

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R. 88, nr 9a

57-61

PL

Jednym z problemów elektroenergetyki jest niestabilna generacja energii przez elektrownie wiatrowe oraz słoneczne. Rozwój wykorzystania odnawialnych źródeł energii i wytwarzania rozproszonego oznacza dużą nieprzewidywalność wytwarzania. Tym bardziej pożądane jest magazynowanie energii elektrycznej. W artykule przedstawiono koncepcję dwóch rozwiązań zasobnika energii elektrycznej, bateryjnego i pneumatycznego, o zdolności magazynowania ok. 50 MW i czasie rozładowania do 5 godzin. Zdolność magazynowania i czas rozładowania zasobnika determinują jego ewentualne zastosowanie – w sieciach dystrybucyjnych i/lub do współpracy z odnawialnymi źródłami energii (farmami wiatrowymi). Zostały przeanalizowane koszty budowy zasobników, jak również zostały omówione ich cechy.

EN

One of the electric power industry problems is unstable electricity generation by wind and solar power plants. Development of utilization of renewable energy sources (RES) and distributed generation (DG) means high non-predictability of production. So, electricity storage is needed. In the paper the concept of two solutions of electricity storage system, battery electricity storage (BES) and compressed air energy storage (CAES), with storage capability of about 50 MW and discharging time up to 5 hours, was presented. Storage capability and discharging time of the storage system determine its possible utilization - in distribution networks and/or for cooperation with renewable energy sources. The costs of electricity storage systems’ construction were analyzed, as well as their characteristics were described.

4

Dynamic analysis of compressed air energy storage in the car

Szabłowski Ł., Milewski J.

Journal of Power Technologies

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2011

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Vol. 91, nr 1

23-36

EN

The article presents a dynamic analysis of the compressed air energy storage in the car. The analysis was used to determine those processes most relevant to achieving highest possible efficiency. A review of the state of the art is presented. Simple technical-economic analysis of usage those kind of cars is also performed and discussed by taking Polish local conditions from an electricity market. Main advantages as well as drawback of the compressed air cars are pointed out.