Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser

The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Heo, JeongBeom [verfasserIn] Kwon, Daehee [verfasserIn] Yeom, Eunseop [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature

Übergeordnetes Werk:	Enthalten in: International journal of heat and mass transfer - Amsterdam [u.a.] : Elsevier, 1960, 219
Übergeordnetes Werk:	volume:219

DOI / URN:	10.1016/j.ijheatmasstransfer.2023.124902

Katalog-ID:	ELV065741501

Internformat


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520			\|a The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed.
650		4	\|a Laser-induced fluorescence
650		4	\|a Thermometry
650		4	\|a Continuous-wave laser
650		4	\|a Droplet temperature
700	1		\|a Kwon, Daehee \|e verfasserin \|4 aut
700	1		\|a Yeom, Eunseop \|e verfasserin \|0 (orcid)0000-0002-9717-030X \|4 aut
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publishDate	2023
allfields	10.1016/j.ijheatmasstransfer.2023.124902 doi (DE-627)ELV065741501 (ELSEVIER)S0017-9310(23)01047-5 DE-627 ger DE-627 rda eng 620 VZ 50.38 bkl Heo, JeongBeom verfasserin aut Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed. Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature Kwon, Daehee verfasserin aut Yeom, Eunseop verfasserin (orcid)0000-0002-9717-030X aut Enthalten in International journal of heat and mass transfer Amsterdam [u.a.] : Elsevier, 1960 219 Online-Ressource (DE-627)320505081 (DE-600)2012726-1 (DE-576)096806575 1879-2189 nnns volume:219 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 50.38 Technische Thermodynamik VZ AR 219
spelling	10.1016/j.ijheatmasstransfer.2023.124902 doi (DE-627)ELV065741501 (ELSEVIER)S0017-9310(23)01047-5 DE-627 ger DE-627 rda eng 620 VZ 50.38 bkl Heo, JeongBeom verfasserin aut Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed. Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature Kwon, Daehee verfasserin aut Yeom, Eunseop verfasserin (orcid)0000-0002-9717-030X aut Enthalten in International journal of heat and mass transfer Amsterdam [u.a.] : Elsevier, 1960 219 Online-Ressource (DE-627)320505081 (DE-600)2012726-1 (DE-576)096806575 1879-2189 nnns volume:219 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 50.38 Technische Thermodynamik VZ AR 219
allfields_unstemmed	10.1016/j.ijheatmasstransfer.2023.124902 doi (DE-627)ELV065741501 (ELSEVIER)S0017-9310(23)01047-5 DE-627 ger DE-627 rda eng 620 VZ 50.38 bkl Heo, JeongBeom verfasserin aut Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed. Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature Kwon, Daehee verfasserin aut Yeom, Eunseop verfasserin (orcid)0000-0002-9717-030X aut Enthalten in International journal of heat and mass transfer Amsterdam [u.a.] : Elsevier, 1960 219 Online-Ressource (DE-627)320505081 (DE-600)2012726-1 (DE-576)096806575 1879-2189 nnns volume:219 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 50.38 Technische Thermodynamik VZ AR 219
allfieldsGer	10.1016/j.ijheatmasstransfer.2023.124902 doi (DE-627)ELV065741501 (ELSEVIER)S0017-9310(23)01047-5 DE-627 ger DE-627 rda eng 620 VZ 50.38 bkl Heo, JeongBeom verfasserin aut Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed. Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature Kwon, Daehee verfasserin aut Yeom, Eunseop verfasserin (orcid)0000-0002-9717-030X aut Enthalten in International journal of heat and mass transfer Amsterdam [u.a.] : Elsevier, 1960 219 Online-Ressource (DE-627)320505081 (DE-600)2012726-1 (DE-576)096806575 1879-2189 nnns volume:219 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 50.38 Technische Thermodynamik VZ AR 219
allfieldsSound	10.1016/j.ijheatmasstransfer.2023.124902 doi (DE-627)ELV065741501 (ELSEVIER)S0017-9310(23)01047-5 DE-627 ger DE-627 rda eng 620 VZ 50.38 bkl Heo, JeongBeom verfasserin aut Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed. Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature Kwon, Daehee verfasserin aut Yeom, Eunseop verfasserin (orcid)0000-0002-9717-030X aut Enthalten in International journal of heat and mass transfer Amsterdam [u.a.] : Elsevier, 1960 219 Online-Ressource (DE-627)320505081 (DE-600)2012726-1 (DE-576)096806575 1879-2189 nnns volume:219 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 50.38 Technische Thermodynamik VZ AR 219
language	English
source	Enthalten in International journal of heat and mass transfer 219 volume:219
sourceStr	Enthalten in International journal of heat and mass transfer 219 volume:219
format_phy_str_mv	Article
bklname	Technische Thermodynamik
institution	findex.gbv.de
topic_facet	Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature
dewey-raw	620
isfreeaccess_bool	false
container_title	International journal of heat and mass transfer
authorswithroles_txt_mv	Heo, JeongBeom @@aut@@ Kwon, Daehee @@aut@@ Yeom, Eunseop @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320505081
dewey-sort	3620
id	ELV065741501
language_de	englisch
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author	Heo, JeongBeom
spellingShingle	Heo, JeongBeom ddc 620 bkl 50.38 misc Laser-induced fluorescence misc Thermometry misc Continuous-wave laser misc Droplet temperature Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
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topic_title	620 VZ 50.38 bkl Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser Laser-induced fluorescence Thermometry Continuous-wave laser Droplet temperature
topic	ddc 620 bkl 50.38 misc Laser-induced fluorescence misc Thermometry misc Continuous-wave laser misc Droplet temperature
topic_unstemmed	ddc 620 bkl 50.38 misc Laser-induced fluorescence misc Thermometry misc Continuous-wave laser misc Droplet temperature
topic_browse	ddc 620 bkl 50.38 misc Laser-induced fluorescence misc Thermometry misc Continuous-wave laser misc Droplet temperature
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hierarchy_parent_title	International journal of heat and mass transfer
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title	Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
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title_full	Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
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author_browse	Heo, JeongBeom Kwon, Daehee Yeom, Eunseop
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title_sort	measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
title_auth	Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
abstract	The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed.
abstractGer	The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed.
abstract_unstemmed	The 2-color/2-dye laser-induced fluorescence technique is a non-intrusive method for measuring temperature in millimeter-scale fluids. This study determines optimal conditions for fluorescein disodium (FL) and Sulforhodamine 640 (SRh640) with a low-cost continuous-wave laser to reduce dye saturation and morphology-dependent resonances. The signal images of both dyes, captured by two high-speed cameras, were clearly distinguishable from the background with high contrast under specific concentration conditions. As a result, three concentration combinations were selected based on preliminary experiments, and the fluorescence signal ratio was analyzed to establish a temperature relationship between 32 and 71 °C. The intensities of FL and SRh640 increases and decrease with the temperature, respectively. Errors resulting from laser light attenuation in single-signal images were reduced using the ratiometric method. Solution 1 (CFL = 1.55 × 10−4 / CSRh640 = 3.2 × 10−6 M) exhibited the highest sensitivity at 0.718 (%/ °C) and a strong linear relationship (r2 = 0.997), so it was determined to be suitable concentration for measuring the droplet temperature. The proposed method estimated the temporal temperature variations of ethanol droplets impinging on a heated surface at TW = 80, 150 and 200 °C. At TW = 80 °C, contact boiling initiated without a recoil process, and the heat transfer elevated the droplet's temperature near the surface, leading to bubble formation and growth. As surface temperature increases, the film boiling behavior can be observed. The temporal evolution of the average heat transfer rate was analyzed.
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title_short	Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser
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up_date	2024-07-07T00:05:23.386Z
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Measurement of impinging and boiling droplet temperature by two-color/two-dye laser-induced fluorescence technique using continuous-wave laser

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