Advanced Method of Variable Refrigerant Flow (VRF) Systems Designing to Forecast On-Site Operation—Part 1: General Approaches and Criteria

All the energetic management and controlling strategies in ambient air conditioning systems (ACS) are aimed to match design load current needs. This might be achieved by determining a rational value of thermal without overestimation that can minimize its deviation from actual values. The application variable refrigerant flow (VRF) with speed-regulated compressors (SRC) is considered as most advanced trend building due ability SRCs cover changeable heat loads lowering their efficiency. level regulation SRC evaluated ratio range, regulated SCR, overall range. With this, range usually supposed covered entirely while keeping rest, unregulated, unchangeable. However, confirm rest behind one should investigated estimate efficiency operation. Therefore, approach dividing into ranges unchangeable compare those used. From this approach, method designing shearing refrigeration capacity response loading, based on principle two-stage conditioning, has been widened VRF SCR application. was realized imposing onto within loading. proposed innovative criteria indicators for duties evaluation reveal reserves improving compressor operation ACS type whole.