The defrosting performance of automotive air conditioners plays an important role in driving safety. This paper uses CFD to simulate the internal flow field automobile numerically. Simulation results show that distribution is unreasonable. horizontal grilles are added at outlets improve automobile. Air-flow jet angle and length conditioning (L1, L2) selected as design variables based on radial ...

Under low outdoor temperature and high humidity, frost easily forms on the Heat Exchanger (Exchanger) surface side. The formation growth of this layer will seriously impact Exchanger’s heat extraction process system’s energy efficiency, triggering malfunction in compressor. To end, work first analyzes mechanism frosting condensation. It then summarizes current research status Machine Vision (MV...

The paper presents an experimental setup developed for phase change materials (PCM) testing inside a vertical shell and tube heat exchanger (VSATHE). work presented part of more complex one focusing on designing PCM that could be used in the defrosting process commercial refrigeration systems. were paraffin RT54HC, while water was as transfer fluid (HTF). This impact changing temperature inlet ...

Cooling of raw materials and products in the food industry as well whole chain, including transportation storage is an important task because it has a great impact to product quality. This paper deal with drop-in application refrigerants cooling systems used industry. The focus my research investigate defrosting cycle evaporator chamber respect thermal medium used. Since during process temperat...

Abstract The outdoor pipe coil frosting of air source heat pump seriously affects the working efficiency equipment. Therefore, a new frost detection algorithm is proposed to optimize defrosting process. First all, image difference introduced remove interference factors in image. Then, brightness correction and denoising are carried out. Finally, combined with processing algorithms such as conto...

Frost formation in the heat exchangers of refrigeration systems is a well-documented phenomenon. This frost accumulation creates thermally insulating barrier that can restrict, or even block, airflow between fins, resulting decreased efficiency and degradation food products. Several methods detection defrosting have been developed, although there not an efficient mainstream method to measure co...

Many scientists now manage the bulk of their bibliographic information electronically, thereby organizing their publications and citation material from digital libraries. However, a library has been described as "thought in cold storage," and unfortunately many digital libraries can be cold, impersonal, isolated, and inaccessible places. In this Review, we discuss the current chilly state of di...