Solution to External and Internal Heat and Mass Transfer Problems for Closed Two-Phase Thermosyphon

Александров, А.А.; Akat’ev, V. A.; Тюрин, М.П.; Бородина, Е.С.

doi:10.18698/1812-3368-2017-4-109-121

HoBMSTU.SNS

2017

DOI: 10.18698/1812-3368-2017-4-109-121

|View full text |Cite

Solution to External and Internal Heat and Mass Transfer Problems for Closed Two-Phase Thermosyphon

А.А. Александров¹,

V. A. Akat’ev²,

М.П. Тюрин³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

2020

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solutions to Eqs. (10) and (11) for specific cases provide the same results. Thus, the following could be written down:…”

mentioning

confidence: 52%

“…Such problems include the processes of heating and cooling various bodies under different unambiguity conditions, which significantly influences the final form of the process mathematical description. Analytical studies of transient processes in the recuperative heat exchangers were mainly carried out by numerical methods, which ultimate objective was primarily to obtain solution for a stationary state [9][10][11][12][13].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Analytical Study of Nonstationary Modes in Recuperative Heat Exchangers

Александров

Akat’ev

Tyurin³

et al. 2020

HoBMSTU.SNS

View full text Add to dashboard Cite

Recuperative heat exchanger transient operation modes during the start-up were considered in order to identify the time for establishing the stationary mode. This is important in carrying out technological processes that require constancy in values of certain parameters ensuring both product quality and process safety. The research was carried out using the analytical method for direct-flow and counter-flow heat exchangers. It was demonstrated that stationary state establishment in the direct-flow heat exchangers occurs immediately after the heat carrier gets into the apparatus. It should be noted that the entire apparatus reaches the stationary mode, when the slower heat carrier arrives at the apparatus output section. In case of a heat exchanger with the heat carrier counter-flow, it was found out that at the moment of the less heated heat carrier appearing at the apparatus output section, it was having the highest temperature. Then the temperature was decreasing, and after passing its minimum was beginning to oscillate along a curve with the damping amplitude. In the case under consideration, the stationary process started, when the dimensionless time value was ϕ ≥ 0.5. The indicated solution was obtained under assumption that thermal and physical characteristics were constant in time and space. It was assumed that total heat capacity of the heat exchanger heat transferring wall was infinitesimal. This assumption is valid with an error of up to 1 % at Fo ≥ 100, which is the case in most practical cases. For apparatuses under study, a formula was also obtained for the time required to reach the stationary state

show abstract

“…Solutions to Eqs. (10) and (11) for specific cases provide the same results. Thus, the following could be written down:…”

mentioning

confidence: 52%

mentioning

confidence: 99%

Analytical Study of Nonstationary Modes in Recuperative Heat Exchangers

Александров

Akat’ev

Tyurin³

et al. 2020

HoBMSTU.SNS

View full text Add to dashboard Cite

show abstract

Optimization of Geometric Characteristics of a Thermosiphon Heat Exchanger with Finned Heat-Exchange Surface

2019

View full text Add to dashboard Cite

Modeling Transitional Conditions to Characteristic Modes of the Course of Two-Phase Cryogenic Media in Pipes and Ring Channels

Khabibullin

2020

NGD

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Solution to External and Internal Heat and Mass Transfer Problems for Closed Two-Phase Thermosyphon

Cited by 3 publications

References 4 publications

Analytical Study of Nonstationary Modes in Recuperative Heat Exchangers

Analytical Study of Nonstationary Modes in Recuperative Heat Exchangers

Optimization of Geometric Characteristics of a Thermosiphon Heat Exchanger with Finned Heat-Exchange Surface

Modeling Transitional Conditions to Characteristic Modes of the Course of Two-Phase Cryogenic Media in Pipes and Ring Channels

Contact Info

Product

Resources

About