INVESTIGATION OF THE PERFORMANCE CHARACTERISTICS OF THE STEAM JET EJECTORS WITH VARIOUS EXPANSION RATIOS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KAZEMI MOHSEN; TAHANI MOJTABA; DAVOODI SASAN

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:6 Page(s): 237-244

Download Full-Text

Persian Verion

View:

1,705

Download:

Cites:

Information Journal Paper

Title

INVESTIGATION OF THE PERFORMANCE CHARACTERISTICS OF THE STEAM JET EJECTORS WITH VARIOUS EXPANSION RATIOS

Author(s)

KAZEMI MOHSEN | TAHANI MOJTABA | DAVOODI SASAN | Issue Writer Certificate

Keywords

EJECTORSQ2

EXPANSION WAVEQ1

COMPRESSION RATIOQ1

THROAT DIFFUSERQ1

FLOW RATIOQ1

Abstract

Steam jet EJECTORS are an essential part in refrigeration and air conditioning, desalination, petroleum refining, petrochemical and chemical industries. A greater understanding of flow physics inside an ejector plays an important role in improving its performance. In this study, analytical algorithm is developed for design of steam EJECTORS. The algorithm gives the FLOW RATIO (motive to suction flow rate) as a function of the expansion ratio and the pressures of the entrained vapor, motive steam and compressed vapor. The COMPRESSION RATIO and back pressure variations were studied in ejector FLOW RATIO with expansion ratio of 5 and 50. It was shown that COMPRESSION RATIO increases by increasing the FLOW RATIO. Also, in a similar flow rate, COMPRESSION RATIO for ejector with expansion ratio of 50 is greater than COMPRESSION RATIO in the ejector with expansion ratio of 50, due to more vacuum in the case with expansion ratio 50. The code results were then compared with experimental results that were in agreement with other results.Finally, Mach number variations from nozzle exit to discharge diffuser were obtained by code. Results revealed that the pressurized condition causes the expansion angle to lessen, thus resulting in smaller jet core and larger effective area. The expanded wave is further accelerated at a lower Mach number. Therefore, the momentum of the jet core is reduced. However, the enlarged effective area allows a larger amount of secondary fluid to be entrained.

Cites

No record.

References

No record.

Cite

APA: Copy

KAZEMI, MOHSEN, TAHANI, MOJTABA, & DAVOODI, SASAN. (2016). INVESTIGATION OF THE PERFORMANCE CHARACTERISTICS OF THE STEAM JET EJECTORS WITH VARIOUS EXPANSION RATIOS. MODARES MECHANICAL ENGINEERING, 16(6), 237-244. SID. https://sid.ir/paper/178799/en

Vancouver: Copy

KAZEMI MOHSEN, TAHANI MOJTABA, DAVOODI SASAN. INVESTIGATION OF THE PERFORMANCE CHARACTERISTICS OF THE STEAM JET EJECTORS WITH VARIOUS EXPANSION RATIOS. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(6):237-244. Available from: https://sid.ir/paper/178799/en

IEEE: Copy

MOHSEN KAZEMI, MOJTABA TAHANI, and SASAN DAVOODI, “INVESTIGATION OF THE PERFORMANCE CHARACTERISTICS OF THE STEAM JET EJECTORS WITH VARIOUS EXPANSION RATIOS,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 6, pp. 237–244, 2016, [Online]. Available: https://sid.ir/paper/178799/en

Related Journal Papers