Effects of trifluoroiodomethane and pentafluoroethane on combustion characteristics of flammable refrigerant propane

Li, Zhong; Zhang, Wang; Li, Xing; Li, Tingxun

doi:10.1016/j.ijrefrig.2023.01.003

Cited by 8 publications

(1 citation statement)

References 42 publications

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“…In particular, the residential and commercial building sector was responsible for approximately 60% of these emissions 8 . To address this issue, many countries have started to phase out HFCs (and other high-GWP refrigerants) and develop lower-GWP alternatives 9 – 12 . In addition, the development of compressor-free technologies has become an important issue in the current development of new refrigeration and heat pump technologies 13 – 18 .…”

Section: Introductionmentioning

confidence: 99%

Low-k nano-dielectrics facilitate electric-field induced phase transition in high-k ferroelectric polymers for sustainable electrocaloric refrigeration

Li,

Wei,

Zhong

et al. 2024

Nat Commun

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Ferroelectric polymer-based electrocaloric effect may lead to sustainable heat pumps and refrigeration owing to the large electrocaloric-induced entropy changes, flexible, lightweight and zero-global warming potential. Herein, low-k nanodiamonds are served as extrinsic dielectric fillers to fabricate polymeric nanocomposites for electrocaloric refrigeration. As low-k nanofillers are naturally polar-inactive, hence they have been widely applied for consolidate electrical stability in dielectrics. Interestingly, we observe that the nanodiamonds markedly enhances the electrocaloric effect in relaxor ferroelectrics. Compared with their high-k counterparts that have been extensively studied in the field of electrocaloric nanocomposites, the nanodiamonds introduces the highest volumetric electrocaloric enhancement (~23%/vol%). The resulting polymeric nanocomposite exhibits concurrently improved electrocaloric effect (160%), thermal conductivity (175%) and electrical stability (125%), which allow a fluid-solid coupling-based electrocaloric refrigerator to exhibit an improved coefficient of performance from 0.8 to 5.3 (660%) while maintaining high cooling power (over 240 W) at a temperature span of 10 K.

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