Validation of transient time method to calibrate oil flow meters in closed conduits using I as the radiotracer

Eduardo R. Gonçalves; Luís E. B. Brandão; Delson Braz

Otwarty dostęp

Validation of transient time method to calibrate oil flow meters in closed conduits using ¹²³I as the radiotracer

oraz

| 08 cze 2021

Tom 66 (2021): Zeszyt 2 (June 2021)

O artykule

Poprzedni artykuł

Następny artykuł

Zacytuj

Udostępnij

Article Category: Original Paper

Data publikacji: 08 cze 2021

Zakres stron: 69 - 74

Otrzymano: 20 mar 2020

Przyjęty: 19 lis 2020

DOI: https://doi.org/10.2478/nuka-2021-0009

Słowa kluczowe
Calibration flow meters, Oil flow rates, Iodine-123, Transient time method

© 2021 Eduardo R. Gonçalves et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Influence of temperature on the labelled oil stability.

The apparatus used to study the radiotracer stability.

Three scintillator probes registering the gamma count at the base, middle, and top sector of the test device with 74 MBq of labelled oil.

A top view of the scattering device in (a) and (b) is used to analyse the internal pipe wall.

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 1000 L/h (Reynolds number = 10 107)

Injection	D1D2	D1D3	D1D4	D2D3	D2D4	D3D4	V_M
T1	97.26	96.95	98.89	97.14	97.78	97.08	97.52
T2	96.86	98.22	97.13	96.99	98.08	97.68	97.49
T3	98.46	97.21	98.09	97.39	97.01	97.95	97.69

			Mean velocity		97.57 ± 0.31 cm/s
			Oil flow rate		1001.14 ± 8.16 L/h

Relationship between flow measurement data

RV ± 0.25% (L/h)	Q (L/h)	rv%	Percent error
800	797.72 ± 6.57	0.824	0.28
950	944.84 ± 7.56	0.800	0.54
1000	1001.14 ± 8.16	0.815	0.11

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 950 L/h (Reynolds number = 9600)

Injection	D1D2	D1D3	D1D4	D2D3	D2D4	D3D4	V_M
T1	93.16	90.07	92.24	91.85	93.87	91.12	92.04
T2	93.11	91.02	91.02	91.12	92.23	92.85	92.01
T3	93.07	90.47	91.92	93.09	93.89	90.86	92.50

			Mean velocity		92.18 ± 0.26 cm/s
			Oil flow rate		944.84 ± 7.56 L/h

Pipeline scan in the measurement positions using a 241Am gamma source

	Total gamma-ray counts
	Position D1	Position D2	Position D3	Position D4
Vertical	8188 ± 90	8194 ± 90	8209 ± 91	8175 ± 90
Horizontal	8002 ± 89	8000 ± 89	8001 ± 90	7990 ± 89

The yield of 123I oil labelling process

Sample	WLS-1A	WLS-1B	OLS-2	WLS-3A	WLS-3B	OLS-3A	OLS-3B
Yield (%)	7.81	5.12	88.74	0.44	0.38	85.46	84.92

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 800 L/h (Reynolds number = 8085)

Injection	D1D2	D1D3	D1D4	D2D3	D2D4	D3D4	V_M
T1	76.95	78.36	77.53	77.59	76.87	77.87	77.53
T2	76.89	77.99	78.09	77.87	78.22	77.96	77.84
T3	76.83	78.39	77.60	77.99	78.14	78.19	77.86

			Mean velocity		77.74 ± 0.27 cm/s
			Oil flow rate		797.72 ± 6.57 L/h

eISSN:: 1508-5791
Język:: Angielski

Częstotliwość wydawania:: 4 razy w roku
Dziedziny czasopisma:: Chemistry, Nuclear Chemistry, Physics, Astronomy and Astrophysics, other

Kanał RSS czasopisma

Validation of transient time method to calibrate oil flow meters in closed conduits using ¹²³I as the radiotracer

Article Category: Original Paper

Data publikacji: 08 cze 2021

Zakres stron: 69 - 74

Otrzymano: 20 mar 2020

Przyjęty: 19 lis 2020

DOI: https://doi.org/10.2478/nuka-2021-0009

Słowa kluczowe
Calibration flow meters, Oil flow rates, Iodine-123, Transient time method

© 2021 Eduardo R. Gonçalves et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 1000 L/h (Reynolds number = 10 107)

Relationship between flow measurement data

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 950 L/h (Reynolds number = 9600)

Pipeline scan in the measurement positions using a 241Am gamma source

The yield of 123I oil labelling process

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 800 L/h (Reynolds number = 8085)

Validation of transient time method to calibrate oil flow meters in closed conduits using 123I as the radiotracer

Article Category: Original Paper

Data publikacji: 08 cze 2021

Zakres stron: 69 - 74

Otrzymano: 20 mar 2020

Przyjęty: 19 lis 2020

DOI: https://doi.org/10.2478/nuka-2021-0009

Słowa kluczoweCalibration flow meters, Oil flow rates, Iodine-123, Transient time method

© 2021 Eduardo R. Gonçalves et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 1000 L/h (Reynolds number = 10 107)

Relationship between flow measurement data

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 950 L/h (Reynolds number = 9600)

Pipeline scan in the measurement positions using a 241Am gamma source

The yield of 123I oil labelling process

Mean flow velocity (in cm/s) for injections T1, T2, and T3, and RV = 800 L/h (Reynolds number = 8085)

Validation of transient time method to calibrate oil flow meters in closed conduits using ¹²³I as the radiotracer

Słowa kluczowe
Calibration flow meters, Oil flow rates, Iodine-123, Transient time method