Proceedings of the Second International Conference on Emerging Trends in Engineering (ICETE 2023)

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Study of Combustion Characteristics for R1234yf/R134a Refrigerant Leakage from VCRS Cycle: An Experimental Approach

Authors
M. Madhu Nayak1, *, B. Hadya1, Md. Azizuddin2
1Department of Mechanical Engineering, University College of Engineering (Autonomous), Osmania University, Hyderabad, Telangana, India
2Department of Mechanical Engineering, Deccan College of Engineering and Technology, Osmania University, Hyderabad, Telangana, India
*Corresponding author. Email: madhunayak.ouce@gmail.com
Corresponding Author
M. Madhu Nayak
Available Online 9 November 2023.
DOI
10.2991/978-94-6463-252-1_100How to use a DOI?
Keywords
R1234yf; Flammability; Flame height; Radiation flux
Abstract

This academic paper explores the flammability concerns associated with using the refrigerant R1234yf in refrigeration and air-conditioning systems. Since R1234yf is a flammable refrigerant, there is a potential risk of fire and explosion if there is an unexpected refrigerant leakage. The study investigates the combustion properties of R134a + R1234yf (40% + 60%) in the event of hypothetical refrigerant leakage from a test setup. The experimental facility is used to study the thermodynamic behavior of R1234yf in a water chiller. An experimental approach is utilized to investigate the combustion and leakage properties of R1234yf and R1234yf/R134a blends under different initial temperature and mass flow rate conditions. Parameters such as flame shape, temperature, and radiation flux are examined to study the combustion process. The findings of the study reveal that the jet flame would blow off at high temperatures and large leakage mass flow rates. On the other hand, ignition of leaked R1234yf was challenging at low temperatures. The study also highlights that combustion intensity increases between 29 and 58 ℃ as the leakage mass flow rate increases. These insights could be valuable in guiding the design of fire detection and rescue systems for refrigeration systems that utilize R1234yf.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the Second International Conference on Emerging Trends in Engineering (ICETE 2023)
Series
Advances in Engineering Research
Publication Date
9 November 2023
ISBN
978-94-6463-252-1
ISSN
2352-5401
DOI
10.2991/978-94-6463-252-1_100How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - M. Madhu Nayak
AU  - B. Hadya
AU  - Md. Azizuddin
PY  - 2023
DA  - 2023/11/09
TI  - Study of Combustion Characteristics for R1234yf/R134a Refrigerant Leakage from VCRS Cycle: An Experimental Approach
BT  - Proceedings of the Second International Conference on Emerging Trends in Engineering (ICETE 2023)
PB  - Atlantis Press
SP  - 992
EP  - 1001
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-252-1_100
DO  - 10.2991/978-94-6463-252-1_100
ID  - Nayak2023
ER  -