國立虎尾科技大學 |

Measuring the Outlet State of a Bubble Column Humidifier.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Measuring the Outlet State of a Bubble Column Humidifier./
作者:	Patel, Rishi.
面頁冊數:	1 online resource (49 pages)
附註:	Source: Masters Abstracts International, Volume: 85-05.
Contained By:	Masters Abstracts International85-05.
標題:	Aerospace engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798380845724

Measuring the Outlet State of a Bubble Column Humidifier.
Patel, Rishi.

Measuring the Outlet State of a Bubble Column Humidifier. - 1 online resource (49 pages)

Source: Masters Abstracts International, Volume: 85-05.

Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2023.

Includes bibliographical references

The issue of water scarcity in rural areas has become a pressing concern, and the humidification-dehumidification process (HDH) for desalination has been identified as a promising solution. Researchers are exploring various methods of improving it's performance. Previous studies have investigated packed bed humidifiers and spray towers, but recent research has highlighted the potential of using bubble column humidifiers for HDH process. Bubble column humidifiers offer enhanced heat and mass transfer, as well as low maintenance, which makes them an attractive option for this application. Despite their widespread use in many industrial processes, there has been limited research done on the performance of the bubble column humidifier. In many applications, the outlet state of humidifier is unknown and estimated which can lead to equipment damage. For example, if the humidity is too high, it can cause corrosion or rust on metal equipment. To address this problem, a twin tower design with a metering pump is proposed in this thesis. Where the one column is used as a bubble column humidifier and the other column, with less fluctuation, is used to measure the water mass transfer rate during the process. This water mass transfer rate is used to accurately estimate the outlet state of air. In addition, bubble column performance was studied with various inlet air mass flow rates and sparger designs. From the results, it was determined that a sparger with the small diameter holes increases the inter facial area between the liquid and gas phases, which leads to higher water mass transfer. In addition, some pulsation in the water was observed when air flow exits the sparger at lower flow rates. It was also determined that increasing the air mass flow rate causes the bubble column to become more turbulent, which aids in obtaining higher water mass transfer rates and therefore more humid air at the outlet.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380845724Subjects--Topical Terms:

686400
Aerospace engineering.
Subjects--Index Terms:

Humidification-dehumidification processIndex Terms--Genre/Form:

554714
Electronic books.

Measuring the Outlet State of a Bubble Column Humidifier.
LDR:03315ntm a22003857 4500 001 1145120
005 20240617111349.5
006 m o d
007 cr mn ---uuuuu
008 250605s2023 xx obm 000 0 eng d
020 $a 9798380845724
035 $a (MiAaPQ)AAI30526445
035 $a AAI30526445
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Patel, Rishi. $3 1470339
245 1 0 $a Measuring the Outlet State of a Bubble Column Humidifier.
264 0 $c 2023
300 $a 1 online resource (49 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 85-05.
500 $a Advisor: Muller, Michael;Rossi, Todd.
502 $a Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2023.
504 $a Includes bibliographical references
520 $a The issue of water scarcity in rural areas has become a pressing concern, and the humidification-dehumidification process (HDH) for desalination has been identified as a promising solution. Researchers are exploring various methods of improving it's performance. Previous studies have investigated packed bed humidifiers and spray towers, but recent research has highlighted the potential of using bubble column humidifiers for HDH process. Bubble column humidifiers offer enhanced heat and mass transfer, as well as low maintenance, which makes them an attractive option for this application. Despite their widespread use in many industrial processes, there has been limited research done on the performance of the bubble column humidifier. In many applications, the outlet state of humidifier is unknown and estimated which can lead to equipment damage. For example, if the humidity is too high, it can cause corrosion or rust on metal equipment. To address this problem, a twin tower design with a metering pump is proposed in this thesis. Where the one column is used as a bubble column humidifier and the other column, with less fluctuation, is used to measure the water mass transfer rate during the process. This water mass transfer rate is used to accurately estimate the outlet state of air. In addition, bubble column performance was studied with various inlet air mass flow rates and sparger designs. From the results, it was determined that a sparger with the small diameter holes increases the inter facial area between the liquid and gas phases, which leads to higher water mass transfer. In addition, some pulsation in the water was observed when air flow exits the sparger at lower flow rates. It was also determined that increasing the air mass flow rate causes the bubble column to become more turbulent, which aids in obtaining higher water mass transfer rates and therefore more humid air at the outlet.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Aerospace engineering. $3 686400
650 4 $a Engineering. $3 561152
650 4 $a Mechanical engineering. $3 557493
653 $a Humidification-dehumidification process
653 $a Bubble column humidifier
653 $a Water mass transfer
653 $a Air mass flow rate
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0537
690 $a 0538
710 2 $a Rutgers The State University of New Jersey, School of Graduate Studies. $b Mechanical and Aerospace Engineering. $3 1241251
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Masters Abstracts International $g 85-05.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30526445 $z click for full text (PQDT)