1 / 16

Possible amendment of IEC 60335-2-40

Possible amendment of IEC 60335-2-40. Li Tingxun. 15-23 July 2016 Vienna, Austria. Related clauses of IEC 60335-2-40. Very strictly limited charge mass reduce the efficiency even though some Low GWP alternative refrigerants have high efficiency potential.

dmatthews
Télécharger la présentation

Possible amendment of IEC 60335-2-40

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Possible amendment of IEC 60335-2-40 LiTingxun 15-23 July 2016 Vienna, Austria

  2. Related clauses of IEC 60335-2-40

  3. Very strictly limited charge mass reduce the efficiency even though some Low GWP alternative refrigerants have high efficiency potential. • Harsh requirements would hurt Low GWP product’s competitiveness. • Some critical requirements of the standard were made about 20 years ago. • It is possible and should to revise the standard impartially and scientifically with new data.

  4. Maximum charge mass of flammable refrigerants The installation height h0 is fixed No air flow in the room

  5. 24 23 22 12 11 10 6 ／ 3 2300 5.4×4.4×2.6(Length*Width*Height) ／ 2 1 21 20 19 18 17 16 1300 5 ／ 4 9 8 7 15 14 13 200

  6. Influence of the installation height h0 350g-fan off-1.8m 460g-fan off-2.2m Equivalent safety for more charge with higher h0

  7. Influence of airflow 700g-369m3/h 700g-fan off Airflow can influence leaked refrigerant diffusion greatly

  8. Fan off 214m3/h 582m3/h 369m3/h 700g-1.8m

  9. Suggestion

  10. Add a new clause to consider relaxe maximum refrigerant with airflow mmax = SF x LFL x hra x A

  11. The only question is how long it need to revise this simple but obvious issue/ clause of the IEC 60335-2-40

  12. Thank for your attention TINGXUN LI Sun Yat sen University Phone：+86 135-3350-9330 E-mail: Litx@Hotmail.com

More Related