Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices
Само за регистроване кориснике
2016
Аутори
Arbeiter, FrederikBachmann, Christian
Chen, Yuming
Ilić, Milica
Schwab, Florian
Sieglin, Bernhard
Wenninger, Ronald
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The first wall (FW) of DEMO is a component with high thermal loads. The cooling of the FW has to comply with the material's upper and lower temperature limits and requirements from stress assessment, like low temperature gradients. Also, the cooling has to be integrated into the balance-of-plant, in a sense to deliver exergy to the power cycle and require a limited pumping power for coolant circulation. This paper deals with the basics of FW cooling and proposes optimization approaches. The effectiveness of several heat transfer enhancement techniques is investigated for the use in helium cooled FW designs for DEMO. Among these are wall-mounted ribs,. large scale mixing devices and modified hydraulic diameter. Their performance is assessed by computational fluid dynamics (CFD), and heat transfer coefficients and pressure drop are compared. Based on the results, an extrapolation to high heat fluxes is tried to estimate the higher limits of cooling capabilities.
Кључне речи:
Plasma facing components (PFC) / High heat flux / Helium / Heat transfer / Fluid dynamics / First wall / DEMO / CFDИзвор:
Fusion Engineering and Design, 2016, 109, 1123-1129Издавач:
- Elsevier Science Sa, Lausanne
DOI: 10.1016/j.fusengdes.2016.01.008
ISSN: 0920-3796
WoS: 000382422100013
Scopus: 2-s2.0-84956859394
Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Arbeiter, Frederik AU - Bachmann, Christian AU - Chen, Yuming AU - Ilić, Milica AU - Schwab, Florian AU - Sieglin, Bernhard AU - Wenninger, Ronald PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2460 AB - The first wall (FW) of DEMO is a component with high thermal loads. The cooling of the FW has to comply with the material's upper and lower temperature limits and requirements from stress assessment, like low temperature gradients. Also, the cooling has to be integrated into the balance-of-plant, in a sense to deliver exergy to the power cycle and require a limited pumping power for coolant circulation. This paper deals with the basics of FW cooling and proposes optimization approaches. The effectiveness of several heat transfer enhancement techniques is investigated for the use in helium cooled FW designs for DEMO. Among these are wall-mounted ribs,. large scale mixing devices and modified hydraulic diameter. Their performance is assessed by computational fluid dynamics (CFD), and heat transfer coefficients and pressure drop are compared. Based on the results, an extrapolation to high heat fluxes is tried to estimate the higher limits of cooling capabilities. PB - Elsevier Science Sa, Lausanne T2 - Fusion Engineering and Design T1 - Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices EP - 1129 SP - 1123 VL - 109 DO - 10.1016/j.fusengdes.2016.01.008 ER -
@article{ author = "Arbeiter, Frederik and Bachmann, Christian and Chen, Yuming and Ilić, Milica and Schwab, Florian and Sieglin, Bernhard and Wenninger, Ronald", year = "2016", abstract = "The first wall (FW) of DEMO is a component with high thermal loads. The cooling of the FW has to comply with the material's upper and lower temperature limits and requirements from stress assessment, like low temperature gradients. Also, the cooling has to be integrated into the balance-of-plant, in a sense to deliver exergy to the power cycle and require a limited pumping power for coolant circulation. This paper deals with the basics of FW cooling and proposes optimization approaches. The effectiveness of several heat transfer enhancement techniques is investigated for the use in helium cooled FW designs for DEMO. Among these are wall-mounted ribs,. large scale mixing devices and modified hydraulic diameter. Their performance is assessed by computational fluid dynamics (CFD), and heat transfer coefficients and pressure drop are compared. Based on the results, an extrapolation to high heat fluxes is tried to estimate the higher limits of cooling capabilities.", publisher = "Elsevier Science Sa, Lausanne", journal = "Fusion Engineering and Design", title = "Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices", pages = "1129-1123", volume = "109", doi = "10.1016/j.fusengdes.2016.01.008" }
Arbeiter, F., Bachmann, C., Chen, Y., Ilić, M., Schwab, F., Sieglin, B.,& Wenninger, R.. (2016). Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices. in Fusion Engineering and Design Elsevier Science Sa, Lausanne., 109, 1123-1129. https://doi.org/10.1016/j.fusengdes.2016.01.008
Arbeiter F, Bachmann C, Chen Y, Ilić M, Schwab F, Sieglin B, Wenninger R. Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices. in Fusion Engineering and Design. 2016;109:1123-1129. doi:10.1016/j.fusengdes.2016.01.008 .
Arbeiter, Frederik, Bachmann, Christian, Chen, Yuming, Ilić, Milica, Schwab, Florian, Sieglin, Bernhard, Wenninger, Ronald, "Thermal-hydraulics of helium cooled First Wall channels and scoping investigations on performance improvement by application of ribs and mixing devices" in Fusion Engineering and Design, 109 (2016):1123-1129, https://doi.org/10.1016/j.fusengdes.2016.01.008 . .