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http://dx.doi.org/10.3795/KSME-B.2016.40.11.705

Steady-State Performance Analysis of Air Conditioner with Multi-Indoor Units  

Hur, Hyun (Air Solution Laboratory, LG Electronics Inc.)
Lee, Jin Wook (Air Solution Laboratory, LG Electronics Inc.)
Jung, Eui Guk (Air Solution Laboratory, LG Electronics Inc.)
Kim, Byung Soon (Air Solution Laboratory, LG Electronics Inc.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.40, no.11, 2016 , pp. 705-715 More about this Journal
Abstract
In this study, the cycle performance of an air conditioner with multi-indoor units is analyzed and simulated. The cycle performance could be predicted through the integration of mathematical formulation for these devices. The condenser pressure is obtained by an iteration process to match the mass flow rates of the compressor and the expansion valve and the evaporator pressure is determined by an iteration process, in which the suction super heat is tracing the targeted super heat. The required software was developed by system programming. the software algorithm is extended to predict the cycle performance of an air conditioner system with multi-indoor units, and then the numerical results are compared with experimental results. This mathematical model is validated from the result of experiments conducted on 8.3kW air conditioner. The errors in capacity, electronic power, and COP are found to be within 10% in general.
Keywords
Refrigerant Cycle Simulation; Condenser; Evaporator; Expansion Valve; Tube-by-Tube Method;
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