Estimation of Infiltration Rate (ACH Natural) Using Blower Door Test and Simulation

One of the primary factors for generating heating and cooling loads in apartment houses is infiltration. However, evaluation method infiltration rates has not been well established Korea. The existing measures air change per hour a house at 50 Pa (ACH50) divides it by leakage–infiltration ratio, N = 20, as suggested Lawrence Berkeley National Laboratory (LBL). In this study, to evaluate average rate an using blower door tests simulations suggested. Six sets were conducted, measurement data used estimate flow coefficients pressure exponents all routes. values input EnergyPlus calculate natural (ACHn) two households. calculated ACHn compared LBL method, which commonly Through process, limitations applying Korea investigated. results show that investigating proper ratio required study can be determine houses.