Advances in Civil Engineering / 2018 / Article / Tab 1

Research Article

Comparison Evaluations of VRF and RTU Systems Performance on Flexible Research Platform

Table 1

Building and HVAC system specification.

LocationOak Ridge, Tennessee, USA
Building sizeTwo-story, 12.2 m × 12.2 m, 4.3 m floor-to-floor height
Exterior wallsConcrete masonry units with face brick, RUS-11 (RSI-1.9) fiberglass insulation
RoofMetal deck with RUS-18 (RSI-3.17) polyisocyanurate insulation
WindowsDouble-pane clear glazing, 28% window-to-wall ratio
Baseloads9.18 W/m2 lighting power density, 14.04 W/m2 equipment power density
Baseline HVAC system44 kW, 9.7 EER rooftop unit; 81% AFUE natural gas furnace; VAV terminal units and electric reheat
VRF system42 kW VRF system with a DOAS

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