Experimental Rig for LiBr-Water absorption power cycle - Design and first experimental results

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00329003" target="_blank" >RIV/68407700:21220/18:00329003 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21720/18:00329003

Result on the web

<a href="https://aip.scitation.org/doi/10.1063/1.5081646" target="_blank" >https://aip.scitation.org/doi/10.1063/1.5081646</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5081646" target="_blank" >10.1063/1.5081646</a>

Result language

angličtina

Original language name

Experimental Rig for LiBr-Water absorption power cycle - Design and first experimental results

Original language description

Absorption power cycle (APC) working with LiBr-H2O solution as a working fluid has been recently identified as a prospective option power production for low temperature and small output (1-10 kW) applications. Different boiling temperatures of the solution components cause a temperature glide during evaporation and condensation (instead of isothermal process for single-component fluid), which can decrease exergy losses during heat exchange processes. The cycle can also operate in a regime of partial power production and partially as an absorption chiller. Thermodynamic properties of the working fluid give a very interesting performance in comparison to ORC as well as standard Kalina cycle. On the other hand the whole cycle (high and low pressure) operates at sub-ambient pressure with large volumetric flows. However, this gives a potential for high turboexpander efficiency for power output in order of several kW. This concept of APC also brings many challenges for the real-life system as actual temperature profile in heat exchangers with temperature glide phase change, purity of the steam going to the expander concerning the liquid solution droplets, actual air tight operation and limiting of corrosion in the system. Therefore and experimental rig for validation of these aspects has been built. Its specific design, methods for components' sizing and first experimental results which tackle some of the mentioned challenges are presented in this work. Results are presented for design of experimental desorber, vapour separator and general system of the rig which has been built in current phase of larger experimental intentions. First results with water instead of LiBr solution give suggestions of required desorber configuration. Expander, absorber or eventually also parallel absorption chiller operation is under planning as a future work.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/ED2.1.00%2F03.0091" target="_blank" >ED2.1.00/03.0091: University center for energy Efficient buildings (UCEEB)</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

AIP Conference Proceedings 2047: 17th Conference of Power SystemEngineering, Thermodynamics and FluidMechanics

ISBN

978-0-7354-1773-1

ISSN

0094-243X

e-ISSN

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Number of pages

11

Pages from-to

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Publisher name

AIP Publishing

Place of publication

Melville, NY

Event location

Plzeň

Event date

Jun 13, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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