Experimental investigation, modeling and in-situ monitoring of a gas-driven absorption heat pump in Belgium

Experimental results; Field results; Gas absorption heat pump; Heat pump modeling; Heat pump performance; Renewable Energy, Sustainability and the Environment

Abstract :

[en] This work describes the methodology used to realize a performance analysis of an ammonia-water condensing gas absorption heat pump. This heat pump shows a nominal heating output of 18,9 kW for an outdoor temperature of 7 °C and a delivery temperature of 35 °C, and it is designed for domestic hot water and heating production. The experimental results obtained in the laboratory are contrasted with those obtained from the monitoring of two residential facilities in the northern part of Belgium. Experimental tests were carried out in a climatic chamber to emulate different outdoor climatic conditions based on a combination of the EN 12309 requirements and typical Belgium weather data. Measurements of gas consumption, electrical consumption, water flows, and temperatures were collected to compute performance indicators. On the other hand, the monitoring data was analyzed and contrasted with the experimental results to evaluate the field systems’ performance; the problems found and modifications made are described and discussed. The results show that the performance of the systems is highly dependent on the coupling with other appliances, on the operating conditions and control of the system, resulting in penalties that can be considerable depending on the configuration used. An empirical model calibrated with experimental data is proposed, as well as a penalization factor calibrated with the monitoring data. The results presented evidence the differences found between the studied facilities, highlighting the main role of proper installation and control not to diminish the main performance indicators.

Disciplines :

Energy

Author, co-author :

Dávila, Camila ; University of Liège, Thermodynamics Laboratory, Liège, Belgium

Vega, Javier ; University of Liège, Thermodynamics Laboratory, Liège, Belgium

Lemort, Vincent ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Thermodynamique appliquée

Language :

English

Title :

Experimental investigation, modeling and in-situ monitoring of a gas-driven absorption heat pump in Belgium

Publication date :

December 2023

Journal title :

Cleaner Energy Systems

ISSN :

2772-7831

eISSN :

2772-7831

Publisher :

Elsevier B.V.

Volume :

Pages :

100087

Peer reviewed :

Peer reviewed

Additional URL :

https://api.elsevier.com/content/article/PII:S2772783123000377?httpAccept=text/xml

Funders :

ULiège - Université de Liège [BE]

Funding text :

The authors thank Gas.be for the financial support to this research project; thanks to Nicolas Paulus for the monitoring data provided.

Available on ORBi :

since 27 February 2024

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