{'fraction_non_alphanumeric': 0.024390243902439025, 'fraction_numerical': 0.0024390243902439024, 'mean_word_length': 5.460629921259843, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Performance Improvement in Single phase Tubular Heat Exchanger using continuous Helical Baffles

Heat exchangers are important heat & mass exchange apparatus in oil refining, chemical engineering, environmental protection, electric power generation, etc. Among different types of heat exchangers, shell-&-tube heat exchangers (STHXs) have been commonly used in industries. About 35–40% of heat exchangers are of the STHXs, & this is primarily due to the robust construction geometry as well as easy maintenance & possible upgrades of STHXs. Segmental baffles are most commonly used in conventional STHXs to support tubes & change fluid flow direction. But, conventional heat exchangers with segmental baffles in shell-side have some shortcomings resulting in the relatively low conversion of pressure drop into a useful heat transfer. The Helixchanger a heat exchanger with shell side helical flow eliminates principle shortcomings caused by shell side zigzag flow induced by conventional baffle arrangements. Both hydrodynamic studies & testing of heat transfer & the pressure drop on research facilities & industrial equipment showed much better performance of helically baffled heat exchanger when compared with conventional ones. The new design reduces dead zones within the shell space. These results in relatively high (Heat transfer co-efficient/Pressure drop) & low shell side fouling. Thus, the helixchanger exhibits much more effective way of converting pressure drop into a useful heat transfer than conventional heat transfer. This project is basically gives the performance of shell & tube heat exchangers with helical baffles.