English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

A three dimensional numerical study has been conducted on fi nned-tube heat exchanger with multiple rows of tubes using ANSYS (Fluent). The objective of this study is to numerically investigate finned tube heat exchanger with different ty pe of tubes such as circular, elliptical an d rectangular tubes. As circular tubes has much pressure drop so elli ptical and recta ngular tubes has been introduced i n order to re duce pressure drop. As well as heat transfer has also been examined. The finite volume bas ed CFD code ANSYS Fluent 16.2 is used to calculate the flow and temperature fields and by applying SIMPLEC algorithm. At low velocity of air and water, nothin g significant occurred for the co mbination of tubes. At high velocit y in maximum tube combination there was heat transfe r (HT) enhance ment and pressure drop reduction when compared with circular tubes only in case of air. When the combinations of circular, elliptical and rectangular tubes has been compared with circular tube heat exchanger (CTHX) heat transfer reduces as well as pressure drop (PD) also reduces for air. In case of water vapor HT and PD behaves the same. When those combinations has been compared with elliptical tube HX, for air in some cases heat transfer remains same and on other case it increases. For pressure drop in case of air, in some cases it reduces and on other cases it reduces. For elliptical tube HX for the fluid water vapor HT and PD both remains same or reduces. This work has not been with conducted any numerical simulation on rectangular Heat exchanger reason behind i t there isn’t an y existence of this kind of h eat exchanger. However, it could be nu merically conducted to examine the results between those combination and rectangular heat exchanger.

Numerical Investigation of Finned-tube Heat Exchanger with Circular, Elliptical & Rectangular Tubes