EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT OF CORRUGATED TWISTED TAPE INSERT WITH CFD ANALYSIS
Authors/Creators
Description
The need to increase the thermal performance of heat exchangers, thereby affecting energy, material & cost savings have led to development & use of many techniques termed as Heat transfer Augmentation. Augmentation techniques increase convective heat transfer by reducing the thermal resistance in a heat exchanger. Twisted tapes-a type of passive heat transfer augmentation techniques have shown significantly good results in past studies. Different designs of twisted tapes used are-Reduced width twisted tapes (RWTT), Baffled reduced width twisted tapes (BRWTT1) & Baffled reduced width twisted tape with holes (BRWTT2). The proposed work is aimed at finding the heat transfer performance in a circular pipe by employing corrugated twisted tapes& also results are to be compared with plain twisted tape. These tapes will be tested for different configurations of twist ratios & wave angles. It is to be verified whether corrugated nature of twisted tape assists the heat transfer by turbulence enhancement or if it increases the pressure drop. Also the use of „CFD‟ software is proposed for analysis work & developing correlations.