Experimental investigation of a kW scale absorption power cycle with LiBr solution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00353743" target="_blank" >RIV/68407700:21220/21:00353743 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/21:00353743 RIV/68407700:21720/21:00361935 RIV/68407700:21220/21:00361935

Výsledek na webu

<a href="https://doi.org/10.14459/2021mp1632900" target="_blank" >https://doi.org/10.14459/2021mp1632900</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14459/2021mp1632900" target="_blank" >10.14459/2021mp1632900</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental investigation of a kW scale absorption power cycle with LiBr solution

Popis výsledku v původním jazyce

Absorption cycles have been proposed not only for cooling but also for power generation. Most common is then Kalina cycle utilizing water-ammonia mixture working fluid. Other working fluids theoretically may provide thermodynamic benefits, have only rarely been examined experimentally. This work reports on, to the authors’ knowledge, the world’s first absorption power cycle using salt solution (here aqueous solution of LiBr), known so far only from absorption cooling. The system with a design power output of around 300 W features solutions such as a nylon 3D printed turbine or measurement of temperature glide during phase change in the heat exchangers. This work is focused on an analysis of the experimental performance of the system. The measured turbine efficiency reached 25% with a potential for much higher values with better design. Over the range of explored conditions, if 65% expander performance was assumed, the maximal cycle efficiency could be around 4.5% and utilization efficiency 0.5%.

Název v anglickém jazyce

Experimental investigation of a kW scale absorption power cycle with LiBr solution

Popis výsledku anglicky

Absorption cycles have been proposed not only for cooling but also for power generation. Most common is then Kalina cycle utilizing water-ammonia mixture working fluid. Other working fluids theoretically may provide thermodynamic benefits, have only rarely been examined experimentally. This work reports on, to the authors’ knowledge, the world’s first absorption power cycle using salt solution (here aqueous solution of LiBr), known so far only from absorption cooling. The system with a design power output of around 300 W features solutions such as a nylon 3D printed turbine or measurement of temperature glide during phase change in the heat exchangers. This work is focused on an analysis of the experimental performance of the system. The measured turbine efficiency reached 25% with a potential for much higher values with better design. Over the range of explored conditions, if 65% expander performance was assumed, the maximal cycle efficiency could be around 4.5% and utilization efficiency 0.5%.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 6th International Seminar on ORC Power Systems

ISBN

978-3-00-070686-8

ISSN

—

e-ISSN

2709-7609

Počet stran výsledku

10

Strana od-do

1-10

Název nakladatele

Technical University of Munich

Místo vydání

—

Místo konání akce

virtual format

Datum konání akce

11. 10. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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