A Diagnostic Technique for the Air Flow Characteristics in Refrigerators using PIV

PIV에 의한 냉장고 기류특성 평가방법

A PIV(Particle Imaging Velocimetry) diagnostic technique for the evaluation of the flow characteristics in refrigerator is introduced. Smoke particles of which density is small enough to follow up the air flow are used for visualization of the air flows in the refrigerators. A rectangular room model is tested for the verifications of the dignostic technique. By evaluating the turbulent intensity and the deviation value of the turbulent intensity distribution that were obtained from PIV results, an optimal ventilating condition is suggested. The constructed technique is used for the diagnostics on the flow of an actual refrigerator. It has experimentally proved that the present technique is able to evaluate the ventilation conditions of refrigerators.