Numerical investigation on shell-side performances of combined parallel and serial two shell-pass shell-and-tube heat exchangers with continuous helical baffles

Yang, Jianyi; Zeng, Min; Wang, Qiuwang

doi:10.1016/j.apenergy.2014.11.029

Cited by 42 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For each number of meshes that were evaluated from different size of mesh element, we calculate heat transfer coefficient and pressure drop. Upon comparison of the results, the best mesh number can be selected for computational model (1,140,747). The maximum deviation of the mesh number was less than 1.7% for heat transfer coefficient ( Fig.…”

Section: Mesh Controlmentioning

confidence: 99%

“…Shell and tube heat exchangers are used in various industrial processes [1]. Heat exchangers allow heat transfer between two fluids [2] and are widely used to heat or cool non-Newtonian fluids in various industries such as [3] chemical, pharmaceutical and petrochemical industries, oil and gas processes, refrigeration, air conditioning, power plants and many other applications [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Seven different types of mesh of different sizes were investigated to determine the number of suitable meshes. The total number of meshes in these cases from larger meshes to smaller meshes was equal to(1,292,741; 1,165,641; 1,140,747; 1,055,370; 989,759; 886,459 and 791,018).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes

Saffarian

Fazelpour

Sham

2019

Int J Energy Environ Eng

View full text Add to dashboard Cite

Shell and tube heat exchangers are used in various industrial processes, and are one of the most commonly used heat exchangers. A shell and tube heat exchanger with a 25% baffle cut was used in this study. Tubes of different cross-sections (circular, elliptical with an attack angle of 90° and elliptical with an attack angle of 0°) were studied. A combined model of a shell and tube heat exchanger with elliptical tubes with an attack angle of 90° and circular tubes was introduced. A heat exchanger with ellipsoidal tubes near the shell with an attack angle of 90° and circular tubes in the center of the shell showed the highest heat transfer compared with the shell and tube heat exchangers with circular tubes and elliptical tubes with an attack angle of 90° and 0°. The pressure drop in the tube and shell side was also investigated for all five cases in this study. The effect of the location of tubes on heat transfer was investigated. It was shown that tubes located near the shell have a greater impact on heat transfer compared with tubes located in the center of the shell.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

show abstract

Section: Mesh Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes

Saffarian

Fazelpour

Sham

2019

Int J Energy Environ Eng

View full text Add to dashboard Cite

show abstract

“…Jian-Feng Yang et al proposed combined parallel and serial two shell-pass shell-and-tube heat exchangers (CPTSP-STHXs & CSTSP-STHXs) whose outer shell pass are set up continuous helical baffles, to enhance the heat transfer performance [23]. The CPTSP-STHX and CSTSP-STHX are compared with the segmental baffled shell and tube heat exchanger (SG-STHX) by computer simulation.…”

Section: Bkhalifeh Soltan Et Al Presented a Correlation Andmentioning

confidence: 99%

Improvisation of Shell Side Heat Transfer Coefficient in Shell and Tube Heat Exchangers using Different Configurations – A Mini Review

Kumar¹,

Kishtapati²

2015

IJERT

View full text Add to dashboard Cite

Heat exchange devices are the most essential components in every process industry. Among them the widely used are shell and tube heat exchangers due to their robust geometry construction, easy maintenance and possible improvements. There is a continuous effort for increasing the film coefficients tube side and shell side so as to improve the overall heat transfer coefficient. The improvement in overall heat transfer coefficient decreases the size of the exchanger resulting in savings in space and cost of the exchanger. The flow on the shell side is usually complex and results in lower values of the shell-side coefficient when compared to that of the tube-side. Efforts to improve shell side coefficient using different types of baffle arrangements and enhanced tubes are discussed here. Flow patterns in the shell side with segmental baffles are discussed. The introduction of sealers to avoid bypass streams improved the overall heat transfer coefficient of the segmental baffle heat exchanger by 15.6 to 19.7%. For fluids flowing in turbulent conditions the spiral baffle plate heat exchanger showed 38% improvement in heat transfer over the conventional heat exchanger. For same pumping power the heat exchangers with helical baffles will have a higher heat transfer coefficient compared with conventional segmental baffles. The heat transfer coefficient can be varied by changing the baffle space and baffle inclination angles. For same mass flow rate, the heat transfer per unit area decreases with the increase of baffle spaces. Within the particular range of Reynolds number for shell side, the optimal helical inclination angle is about 45°, with which the integrated heat transfer and pressure drop performance is the best. Tubes with variety of enhancements such as finned tubes, corrugated tubes etc increased heat transfer.

show abstract

“…Correlations for "Nu s " and friction factor kept constant for, CH/SG = 0.28. [1] Bell-Delaware methodology for STHx with SB has been developed. A range of curve sort factors is replaced by mathematical expressions.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Shell , Tube Heat Exchanger with Segmental and Helix Baffles

Prathyusha¹,

Tjprc²

2018

IJMPERD

View full text Add to dashboard Cite

show abstract

Numerical investigation on shell-side performances of combined parallel and serial two shell-pass shell-and-tube heat exchangers with continuous helical baffles

Cited by 42 publications

References 22 publications

Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes

Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes

Improvisation of Shell Side Heat Transfer Coefficient in Shell and Tube Heat Exchangers using Different Configurations – A Mini Review

Numerical Investigation on Shell , Tube Heat Exchanger with Segmental and Helix Baffles

Contact Info

Product

Resources

About