Numerical Investigation of the Chemical Effect and Inhibition Effect Improvement of C 3 H 2 F 3 Br (2-BTP) Using the Perfectly Stirred Reactor Model

Ping Li, Bo Ke, Jian Zhang and Xianfeng Chen
Additional contact information
Ping Li: School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
Bo Ke: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Jian Zhang: School of Resources and Safety Engineering, Central South University, Changsha 410083, China
Xianfeng Chen: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

Energies, 2018, vol. 11, issue 10, 1-11

Abstract: The overall chemical rate and chemical effect of CF 3 Br, 2-BTP and 2-BTP/CO 2 with hydrocarbon flames are calculated using the perfectly stirred reactor (PSR) model. The chemical effects of CF 3 Br with CH 4 /air flames always inhibit combustion. The chemical saturation concentration of CF 3 Br in stoichiometric and lean ( Φ = 0.6) CH 4 /air flames at 298 K and 1 bar is roughly 2.5% and 0.8%, respectively. The overall chemical rate of 2-BTP with moist C 3 H 8 /air flames is always less than the uninhibited condition and fluctuates with sub-inerting agent additions. The net chemical effect variation of 2-BTP is more complicated than experimented and calculated flame speeds with 2-BTP added to lean hydrocarbon flames. There are negative chemical effects (chemical combustion effects) with certain sub-inerting 2-BTP concentrations (0.015 ≤ Xa ≤ 0.034), which result in the experimented unwanted combustion enhancement in lean moist C 3 H 8 /air flames. CO 2 can obviously improve the inhibition effect of 2-BTP in lean moist C 3 H 8 /air flames, driving negative chemical effects (enhance combustion) into positive chemical effects (inhibit combustion) with lean moist C 3 H 8 /air flames. No enhanced combustion would occur with the blends (2-BTP/CO 2 ) when CO 2 addition is larger than 4% in Φ = 0.6 moist C 3 H 8 /air flames at 298 K and 1 bar.

Keywords: perfectly stirred reactor model; chemical effect; saturation effectiveness; synergistic effect (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/11/10/2670/pdf (application/pdf)
https://www.mdpi.com/1996-1073/11/10/2670/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:11:y:2018:i:10:p:2670-:d:174129

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().