From Delphi
This work examines, objectively and subjectively, refrigerant noise induced by the flow of R134a through seven different plate-type automotive evaporator tubes with two tube heights and airflow depths ranging from about 45 mm to 75 mm. Experiments were conducted with both superheated and two-phase refrigerant without and with heating, and without/with lubricant. Measurements of tube surface acceleration were used to quantify flow induced acoustic phenomena.
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Overview Waste heat must occasionally be removed from a process at below-ambient temperatures. This is normally accomplished by evaporating a light fluid called a refrigerant. Common industrial...
6.1 WHERE THE REFRIGERATION LOAD ENTERS THE SYSTEM The evaporator is the component of the refrigeration system where a fluid stream or a product is cooled. As Fig. 6.1 shows, the evaporator is the...
VI. The UTA High-Performance Shock Tube The development of the UTA high-performance shock tube followed suggestions by Bakos and Erdos35 that high-enthalpy flows could be generated using a...
6.4 Aeroelastic Noise Sandrine Vergne, Jean-Marc Auger, Fred P ri , Andr Jacques, and Dimitri Nicolopoulos 6.4.1 Introduction to aeroelastic noise Aerodynamic noise is one of the major...
8.1 LIQUID RECIRCULATION AND LIQUID OVERFEED The terms liquid recirculation and liquid overfeed are sometimes used interchangeably and refer to the practice of delivering a greater rate of liquid...
