Rohit Dhumane
Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
Jiazhen Ling
Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
Vikrant Aute
Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
Reinhard Radermacher
Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
Download article
http://dx.doi.org/10.3384/ecp19157241Published in: Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019
Linköping Electronic Conference Proceedings 157:25, p. 10
Published: 2019-02-01
ISBN: 978-91-7685-122-7
ISSN: 1650-3686 (print), 1650-3740 (online)
Roving Comforter provides personal cooling in the range of 150 W using vapor compression cycle (VCC) up to 4 hours. During this operation, the condenser heat is stored in a latent heat storage made of phase change material (PCM). This heat needs to be discharged before next cooling operation. A heat pump mode is considered and analyzed for this heat discharge in the present article. The cycle is modeled using CEEEModelicaLibrary, which is a commercial package for complex vapor compression systems. Equations and assumptions involved in modeling some of the components is presented. Programming and modeling decisions for PCM modeling are discussed in detail. A parametric study is conducted with the heat pump system model to identify merits and demerits of operating heat pump cycle at various compressor RPM’s.
