Energy performance comparison of three innovative HVAC systems for renovation through dynamic simulation
2014 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 82, 512-519 p.Article in journal (Refereed) Published
In this paper, dynamic simulation was used to compare the energy performance of three innovativeHVAC systems: (A) mechanical ventilation with heat recovery (MVHR) and micro heat pump, (B) exhaustventilation with exhaust air-to-water heat pump and ventilation radiators, and (C) exhaust ventilationwith air-to-water heat pump and ventilation radiators, to a reference system: (D) exhaust ventilation withair-to-water heat pump and panel radiators. System A was modelled in MATLAB Simulink and systems Band C in TRNSYS 17. The reference system was modelled in both tools, for comparison between the two.All systems were tested with a model of a renovated single family house for varying U-values, climates,infiltration and ventilation rates.It was found that A was the best system for lower heating demand, while for higher heating demandsystem B would be preferable. System C was better than the reference system, but not as good as A or B.The difference in energy consumption of the reference system was less than 2 kWh/(m2a) betweenSimulink and TRNSYS. This could be explained by the different ways of handling solar gains, but also bythe fact that the TRNSYS systems supplied slightly more than the ideal heating demand.
Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 82, 512-519 p.
Energy performance, Dynamic simulation, HVAC, Micro heat pump, Heat recovery, Ventilation radiator, TRNSYS, MATLAB Simulink, Renovation
Research subject Energy Technology; Civil and Architectural Engineering
IdentifiersURN: urn:nbn:se:kth:diva-150447DOI: 10.1016/j.enbuild.2014.07.059ISI: 000343781400050ScopusID: 2-s2.0-84906314530OAI: oai:DiVA.org:kth-150447DiVA: diva2:743435
FunderEU, FP7, Seventh Framework Programme, 314461