Pressure Drop of Liquid–Solid Two-Phase Flow in the Vertical Tube Bundle of a Cold-Model Circulating Fluidized Bed Evaporator
Sign Up to like & getrecommendations! Published in 2019 at "Transactions of Tianjin University"
DOI: 10.1007/s12209-019-00212-z
Abstract: A cold-model vertical multi-tube circulating fluidized bed evaporator was designed and built to conduct a visualization study on the pressure drop of a liquid–solid two-phase flow and the corresponding particle distribution. Water and polyformaldehyde particle… read more here.
Keywords: pressure drop; vertical tube; pressure; tube bundle ... See more keywords
Pressure and shear stress analysis in a normal triangular tube bundle based on experimental flow velocity field
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-02293-7
Abstract: This paper presents the experimental vector velocity field obtained through the spatial filter velocimetry technique in a normal triangular tube bundle test section with tubes of 20 mm O.D. and transverse pitch of 25.2 mm. The experiments… read more here.
Keywords: velocity field; field; triangular tube; velocity ... See more keywords
A study on the optimal arrangement of tube bundle for the performance enhancement of a steam turbine surface condenser
Sign Up to like & getrecommendations! Published in 2020 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2019.114681
Abstract: Abstract A porous medium model was used for numerical and experimental investigations of a system that includes a tube bundle inside a steam turbine surface condenser. A condensation model was developed to predict the condenser… read more here.
Keywords: condenser; steam turbine; tube bundle; performance ... See more keywords
Dynamic simulation on ash deposition and heat transfer behavior on a staggered tube bundle under high-temperature conditions
Sign Up to like & getrecommendations! Published in 2020 at "Energy"
DOI: 10.1016/j.energy.2019.116390
Abstract: Abstract In this paper, a predictive tool was developed to simulate the formation of ash deposit on tube bundles under high-temperature conditions based on ANSYS FLUENT platform. The effects of the factors on ash deposition… read more here.
Keywords: pitch; temperature; tube; tube bundle ... See more keywords
Effect of transverse triangular cross-sectional wedges on the asymptotic fouling deposition behavior of the flow through an inline tube bundle
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2020.120739
Abstract: Abstract The deposition on a superheater and economizer may come from loose ash particles adhering to their tube surfaces. It causes a fouling thermal resistance, an increase in the flow pressure drop, and hence a… read more here.
Keywords: deposition; thermal resistance; tube bundle; rate ... See more keywords
Effect of transverse triangular wedges on the behavior of the ash deposition and heat transfer of an inline tube bundle
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2021.121121
Abstract: Abstract The experiment was carried out on an inline 6 rows – 3 columns tube bundle. Free air velocity and coal fly ash feed rate were kept constant at 2.1 ms−1 and 3.65×10−4 kgs−1, respectively.… read more here.
Keywords: heat transfer; tube; deposition; tube bundle ... See more keywords
Characterization and numerical simulation of liquid refrigerant R-134a flow emerging from a flooded evaporator tube bundle
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Refrigeration"
DOI: 10.1016/j.ijrefrig.2019.07.001
Abstract: Abstract The distribution of liquid droplets emerging from an evaporator tube bundle is characterized for refrigerant R-134a with a triangular tube arrangement with a pitch of 1.167. The purpose of this research was to improve… read more here.
Keywords: refrigerant 134a; evaporator tube; liquid; tube ... See more keywords
Double-pass shell-and-tube heat exchanger performance enhancement with new combined baffle and elliptical tube bundle arrangement
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2021.106999
Abstract: Abstract Optimization of shell-side fluid flow and heat transfer of heat exchangers could be done by reforming the baffle and tube bundle structures. In this study, a new arrangement of baffles and tube bundles in… read more here.
Keywords: bundle arrangement; tube; elliptical tube; tube bundle ... See more keywords
Cross Vapor Stream Effect on Falling Film Evaporation in Horizontal Tube Bundle Using R134a
Sign Up to like & getrecommendations! Published in 2018 at "Heat Transfer Engineering"
DOI: 10.1080/01457632.2017.1327296
Abstract: Abstract The falling film evaporation of R134a with nucleate boiling outside a triangular-pitch (2-3-2-3) tube bundle is experimentally investigated, and the effects of saturation temperature, film flow rate and heat flux on heat transfer performance… read more here.
Keywords: film evaporation; falling film; vapor; tube bundle ... See more keywords