Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 7, No 4 (2015)

Evaluation of seasonal exergy efficiency of air handing unit

Kęstutis Genys (Vilnius Gediminas Technical University, Lithuania)
Violeta Misevičiūtė (Vilnius Gediminas Technical University, Lithuania)
Paulius Bareika (Vilnius Gediminas Technical University, Lithuania)


The article deals with the air handling unit seasonal exergy efficiency. TRNSYS simulation tool is used to evaluate it. The object of research is air treatment device used to treat an air for the ventilation of laboratory. The mathematical model of air handling unit using TRNSYS simulation tool was developed when the technical parameters of air handling unit and energy exchange in it were analysed. The developed model according to the made observations during the warm and cold periods was tested and validation of elements was performed. The simulation of air handling unit operation after the verification of reliability and permitted tolerances was performed. The control mechanisim which allows simulating the operation of air handling unit during cold and warm periods of the year was made. The mathematical algorithm for calculation of air handling unit exergy efficiency coefficient applying the principles of exergy analysis was developed. The seasonal exergy efficiency of air handling unit equal to 3.94 percent during the simulation was obtained.

Article in: Lithuanian

Article published: 2015-09-29

Keyword(s): exergy analysis; exergy efficiency; simulation; recuperator; TRNSYS; air handling unit.

DOI: 10.3846/mla.2015.824

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 License.