On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications

Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience...
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Autor*in:	Wang, Chaoyue [verfasserIn] Wang, Benhong [verfasserIn] Wang, Fujun [verfasserIn] Wang, Hao [verfasserIn] Hong, Yiping [verfasserIn] Wu, Jie [verfasserIn] Li, Dianji [verfasserIn] Shao, Chunbing [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity

Übergeordnetes Werk:	Enthalten in: Energy - Amsterdam [u.a.] : Elsevier Science, 1976, 292
Übergeordnetes Werk:	volume:292

DOI / URN:	10.1016/j.energy.2024.130528

Katalog-ID:	ELV067209580

Internformat


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245	1	0	\|a On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
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520			\|a Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering.
650		4	\|a Energy engineering
650		4	\|a Energy conversion
650		4	\|a Scale effect
650		4	\|a Bulb tubular pump
650		4	\|a Similarity law
650		4	\|a Gravity
700	1		\|a Wang, Benhong \|e verfasserin \|4 aut
700	1		\|a Wang, Fujun \|e verfasserin \|4 aut
700	1		\|a Wang, Hao \|e verfasserin \|4 aut
700	1		\|a Hong, Yiping \|e verfasserin \|4 aut
700	1		\|a Wu, Jie \|e verfasserin \|4 aut
700	1		\|a Li, Dianji \|e verfasserin \|4 aut
700	1		\|a Shao, Chunbing \|e verfasserin \|4 aut
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publishDate	2024
allfields	10.1016/j.energy.2024.130528 doi (DE-627)ELV067209580 (ELSEVIER)S0360-5442(24)00299-8 DE-627 ger DE-627 rda eng 600 VZ 50.70 bkl Wang, Chaoyue verfasserin aut On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering. Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity Wang, Benhong verfasserin aut Wang, Fujun verfasserin aut Wang, Hao verfasserin aut Hong, Yiping verfasserin aut Wu, Jie verfasserin aut Li, Dianji verfasserin aut Shao, Chunbing verfasserin aut Enthalten in Energy Amsterdam [u.a.] : Elsevier Science, 1976 292 Online-Ressource (DE-627)320597903 (DE-600)2019804-8 (DE-576)116451815 1873-6785 nnns volume:292 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.70 Energie: Allgemeines VZ AR 292
spelling	10.1016/j.energy.2024.130528 doi (DE-627)ELV067209580 (ELSEVIER)S0360-5442(24)00299-8 DE-627 ger DE-627 rda eng 600 VZ 50.70 bkl Wang, Chaoyue verfasserin aut On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering. Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity Wang, Benhong verfasserin aut Wang, Fujun verfasserin aut Wang, Hao verfasserin aut Hong, Yiping verfasserin aut Wu, Jie verfasserin aut Li, Dianji verfasserin aut Shao, Chunbing verfasserin aut Enthalten in Energy Amsterdam [u.a.] : Elsevier Science, 1976 292 Online-Ressource (DE-627)320597903 (DE-600)2019804-8 (DE-576)116451815 1873-6785 nnns volume:292 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.70 Energie: Allgemeines VZ AR 292
allfields_unstemmed	10.1016/j.energy.2024.130528 doi (DE-627)ELV067209580 (ELSEVIER)S0360-5442(24)00299-8 DE-627 ger DE-627 rda eng 600 VZ 50.70 bkl Wang, Chaoyue verfasserin aut On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering. Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity Wang, Benhong verfasserin aut Wang, Fujun verfasserin aut Wang, Hao verfasserin aut Hong, Yiping verfasserin aut Wu, Jie verfasserin aut Li, Dianji verfasserin aut Shao, Chunbing verfasserin aut Enthalten in Energy Amsterdam [u.a.] : Elsevier Science, 1976 292 Online-Ressource (DE-627)320597903 (DE-600)2019804-8 (DE-576)116451815 1873-6785 nnns volume:292 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.70 Energie: Allgemeines VZ AR 292
allfieldsGer	10.1016/j.energy.2024.130528 doi (DE-627)ELV067209580 (ELSEVIER)S0360-5442(24)00299-8 DE-627 ger DE-627 rda eng 600 VZ 50.70 bkl Wang, Chaoyue verfasserin aut On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering. Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity Wang, Benhong verfasserin aut Wang, Fujun verfasserin aut Wang, Hao verfasserin aut Hong, Yiping verfasserin aut Wu, Jie verfasserin aut Li, Dianji verfasserin aut Shao, Chunbing verfasserin aut Enthalten in Energy Amsterdam [u.a.] : Elsevier Science, 1976 292 Online-Ressource (DE-627)320597903 (DE-600)2019804-8 (DE-576)116451815 1873-6785 nnns volume:292 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.70 Energie: Allgemeines VZ AR 292
allfieldsSound	10.1016/j.energy.2024.130528 doi (DE-627)ELV067209580 (ELSEVIER)S0360-5442(24)00299-8 DE-627 ger DE-627 rda eng 600 VZ 50.70 bkl Wang, Chaoyue verfasserin aut On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications 2024 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering. Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity Wang, Benhong verfasserin aut Wang, Fujun verfasserin aut Wang, Hao verfasserin aut Hong, Yiping verfasserin aut Wu, Jie verfasserin aut Li, Dianji verfasserin aut Shao, Chunbing verfasserin aut Enthalten in Energy Amsterdam [u.a.] : Elsevier Science, 1976 292 Online-Ressource (DE-627)320597903 (DE-600)2019804-8 (DE-576)116451815 1873-6785 nnns volume:292 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 50.70 Energie: Allgemeines VZ AR 292
language	English
source	Enthalten in Energy 292 volume:292
sourceStr	Enthalten in Energy 292 volume:292
format_phy_str_mv	Article
bklname	Energie: Allgemeines
institution	findex.gbv.de
topic_facet	Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity
dewey-raw	600
isfreeaccess_bool	false
container_title	Energy
authorswithroles_txt_mv	Wang, Chaoyue @@aut@@ Wang, Benhong @@aut@@ Wang, Fujun @@aut@@ Wang, Hao @@aut@@ Hong, Yiping @@aut@@ Wu, Jie @@aut@@ Li, Dianji @@aut@@ Shao, Chunbing @@aut@@
publishDateDaySort_date	2024-01-01T00:00:00Z
hierarchy_top_id	320597903
dewey-sort	3600
id	ELV067209580
language_de	englisch
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The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. 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author	Wang, Chaoyue
spellingShingle	Wang, Chaoyue ddc 600 bkl 50.70 misc Energy engineering misc Energy conversion misc Scale effect misc Bulb tubular pump misc Similarity law misc Gravity On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
authorStr	Wang, Chaoyue
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topic_title	600 VZ 50.70 bkl On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications Energy engineering Energy conversion Scale effect Bulb tubular pump Similarity law Gravity
topic	ddc 600 bkl 50.70 misc Energy engineering misc Energy conversion misc Scale effect misc Bulb tubular pump misc Similarity law misc Gravity
topic_unstemmed	ddc 600 bkl 50.70 misc Energy engineering misc Energy conversion misc Scale effect misc Bulb tubular pump misc Similarity law misc Gravity
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title	On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
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title_full	On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
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author_browse	Wang, Chaoyue Wang, Benhong Wang, Fujun Wang, Hao Hong, Yiping Wu, Jie Li, Dianji Shao, Chunbing
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title_sort	on the scale effect of energy conversion in large-scale bulb tubular pump: characteristics, mechanisms and applications
title_auth	On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
abstract	Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering.
abstractGer	Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering.
abstract_unstemmed	Bulb tubular pump is a special pump type with considerable application potential in low-head energy engineering. The energy performance of a large-scale bulb tubular pump can only be estimated based on its hydraulic model according to the conventional similarity law. However, engineering experience shows that this approach may cause significant errors, but the reason is still unclear due to the lack of understanding the scale effect of its energy conversion. In this paper, the characteristics, mechanisms and applications of the scale effect of energy conversion in large-scale bulb tubular pump are comprehensively studied. Progressive characteristics of energy conversion are quantified and a special scale effect is found. Hydraulic efficiency and head exhibit a feature of first increasing and then decreasing as the geometric scale increases, and the critical scale is 16. The competition between viscous effect and gravity effect is the origin of this special scale effect. When the bulb tubular pump exceeds a certain size, gravity-induced pressure polarization oscillation and partial flow separation are rapidly highlighted, destroying the hydraulic consistency and leading to a surge in energy loss and hydraulic instability. According to these findings, an improved similarity conversion mode is proposed for the bulb tubular pump, and the hydraulic efficiency drift with the geometric scale is determined by combining the dynamic weights of gravity effect and viscous effect. More importantly, this indicates the existence of a theoretical limit of pump size to balance the economy and safety, which should be paid attention to in energy engineering.
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title_short	On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications
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author2	Wang, Benhong Wang, Fujun Wang, Hao Hong, Yiping Wu, Jie Li, Dianji Shao, Chunbing
author2Str	Wang, Benhong Wang, Fujun Wang, Hao Hong, Yiping Wu, Jie Li, Dianji Shao, Chunbing
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doi_str	10.1016/j.energy.2024.130528
up_date	2024-07-06T20:28:55.928Z
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On the scale effect of energy conversion in large-scale bulb tubular pump: Characteristics, mechanisms and applications

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