Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank

Boil-off gas (BOG) from a liquefied natural gas (LNG) storage tank depends on the amount of heat leakage however, its assessment often relies on the static value of the boil-off rate (BOR) suggested by the LNG tank vendors that over/under predicts BOG generation. Thus, the impact of static BOR on BO...

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Main Authors: Mohd Shariq Khan, Muhammad Abdul Qyyum, Wahid Ali, Aref Wazwaz, Khursheed B. Ansari, Moonyong Lee
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/21/5578
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author Mohd Shariq Khan
Muhammad Abdul Qyyum
Wahid Ali
Aref Wazwaz
Khursheed B. Ansari
Moonyong Lee
author_facet Mohd Shariq Khan
Muhammad Abdul Qyyum
Wahid Ali
Aref Wazwaz
Khursheed B. Ansari
Moonyong Lee
author_sort Mohd Shariq Khan
collection DOAJ
description Boil-off gas (BOG) from a liquefied natural gas (LNG) storage tank depends on the amount of heat leakage however, its assessment often relies on the static value of the boil-off rate (BOR) suggested by the LNG tank vendors that over/under predicts BOG generation. Thus, the impact of static BOR on BOG predictions is investigated and the results suggest that BOR is a strong function of liquid level in a tank. Total heat leakage in a tank practically remains constant, nonetheless the unequal distribution of heat in vapor and liquid gives variation in BOR. Assigning the total tank heat leak to the liquid is inappropriate since a part of heat increases vapor temperature. At the lower liquid level, BOG is under-predicted and at a higher level, it is over-predicted using static BOR. Simulation results show that BOR varies from 0.012 wt% per day for an 80% tank fill to 0.12 wt% per day at 10% tank fill.
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spelling doaj.art-24d1ff8757e74f818fc12dbffb40f5092023-11-20T18:30:43ZengMDPI AGEnergies1996-10732020-10-011321557810.3390/en13215578Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage TankMohd Shariq Khan0Muhammad Abdul Qyyum1Wahid Ali2Aref Wazwaz3Khursheed B. Ansari4Moonyong Lee5Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah 211, OmanDepartment of Chemical Engineering, Yeungnam University, Dae-dong 712-749, KoreaDepartment of Chemical Engineering Technology, College of Applied Industrial Technology (CAIT), Jazan University, Jazan 45142, Saudi ArabiaDepartment of Chemical Engineering, College of Engineering, Dhofar University, Salalah 211, OmanDepartment of Chemical Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh 202001, IndiaDepartment of Chemical Engineering, Yeungnam University, Dae-dong 712-749, KoreaBoil-off gas (BOG) from a liquefied natural gas (LNG) storage tank depends on the amount of heat leakage however, its assessment often relies on the static value of the boil-off rate (BOR) suggested by the LNG tank vendors that over/under predicts BOG generation. Thus, the impact of static BOR on BOG predictions is investigated and the results suggest that BOR is a strong function of liquid level in a tank. Total heat leakage in a tank practically remains constant, nonetheless the unequal distribution of heat in vapor and liquid gives variation in BOR. Assigning the total tank heat leak to the liquid is inappropriate since a part of heat increases vapor temperature. At the lower liquid level, BOG is under-predicted and at a higher level, it is over-predicted using static BOR. Simulation results show that BOR varies from 0.012 wt% per day for an 80% tank fill to 0.12 wt% per day at 10% tank fill.https://www.mdpi.com/1996-1073/13/21/5578natural gasliquefactionregasificationLNG storage tankBOGBOR
spellingShingle Mohd Shariq Khan
Muhammad Abdul Qyyum
Wahid Ali
Aref Wazwaz
Khursheed B. Ansari
Moonyong Lee
Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
Energies
natural gas
liquefaction
regasification
LNG storage tank
BOG
BOR
title Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
title_full Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
title_fullStr Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
title_full_unstemmed Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
title_short Energy Saving through Efficient BOG Prediction and Impact of Static Boil-off-Rate in Full Containment-Type LNG Storage Tank
title_sort energy saving through efficient bog prediction and impact of static boil off rate in full containment type lng storage tank
topic natural gas
liquefaction
regasification
LNG storage tank
BOG
BOR
url https://www.mdpi.com/1996-1073/13/21/5578
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