Supplement 1 to the 01 series included requirements for the positioning of LNG tanks. While the Netherlands believes that mounting the LNG fuel tank 200mm above the road surface is broadly adequate; this proposal aims to ensure that the fuel tank cannot, under any normal driving or stationary working situations, come into contact with the ground. The new wording provides more definitive conditions, including the possibility of a vehicle having one or more flat tires as well as for those vehicles that have ‘kneeling’ capability or variable suspension, both of which lower the frame of the vehicle closer to the ground.
|Document Title: Proposal for Supplement 1 to the 01 series of amendments to Regulation No. 110|
|Document Reference Number: WP.29/2013/101|
Text as approved by the GRSG to introduce type-approval provisions for vehicles equipped with liquefied natural gas propulsion systems. The proposal has been prepared as a new consolidated version of UN Regulation No. 110.
|Meeting Session: 161st WP.29 session (12-15 Nov 2013)|
|Document date: 31 Jul 13 (Posted 05 Aug 13)|
|Document status: Adopted text published|
This document concerns UN Regulation No. 110 | Compressed and Liquefied Natural Gas System Components.
This submission is related to the following document(s):
Working Party on General Safety | Session 105 | 8-11
39. Referring to ECE/TRANS/WP.29/2013/101, the expert from the Netherlands introduced ECE/TRANS/WP.29/GRSG/2013/28 clarifying the type approval provisions for vehicles equipped with Liquefied Natural Gas (LNG) propulsion systems. GRSG noted a list of editorial corrections (GRSG-105-02) to be inserted into ECE/TRANS/WP.29/2013/101. GRSG adopted the proposed amendments as reproduced in WP.29-161-05 and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2013 sessions as a Corrigendum to ECE/TRANS/WP.29/2013/101 (draft Supplement 1 to the 01 series of amendments to UN Regulation No. 110).
59. Agenda item 4.7.5., Regulation No. 110, document ECE/TRANS/WP.29/2013/101, (see WP.29-161-05):
Page 13, paragraph 5.3.1. (including footnote 10), amend the footnote 10 to read:
Page 16, paragraph 8.13.1., amend to read:
Page 16, insert a new paragraph 126.96.36.199., to read:
Page 16, paragraph 188.8.131.52. (former), renumber as paragraph 184.108.40.206.
Page 16, paragraph 8.13.3., correct to read:
Page 24, insert new paragraphs 18.6.1. to 220.127.116.11., to read:
Page 24, paragraphs 18.6.1. to 18.6.3. (former), renumber as paragraphs 18.6.2. to 18.6.4.
Page 25, paragraph 18.6.4. (former), renumber as paragraph 18.6.5. and amend to read:
Page 25, paragraphs 18.6.5. to 18.6.7. (former), renumber as paragraphs 18.6.6. to 18.6.8.
Page 26, paragraph 18.10.3., correct the reference to “Annex 4F1” to read “Annex 4F”.
Page 28, insert a new paragraph 24.3., to read:
Page 28, paragraphs 24.3. to 24.5. (former), renumber as paragraphs 24.4. to 24.6.
Page 28, paragraph 24.6. (former), renumber the as paragraph 24.7. and amend the references to paragraphs 24.4. and 24.5. to read paragraphs 24.5. and 24.6.
Pages 40 and 41, Annex 1B, items 18.104.22.168.18. to 22.214.171.124.29.2., correct the footnote 1 (former) to read footnote 2 and footnote 2 (former) to read footnote 1.
Page 48, Annex 2B – Addendum, paragraphs 1.22.2., 1.23.2., 1.24.2., 1.25.2., 1.26.2., 1.27.2., 1.28.2., 1.29.2., 1.30.2. and 1.31.2., correct the wording “Working pressure(s)1:” to read “Material:”.
Page 53, Annex 3A, paragraphs 2. and 3., correct the references to “page 6” and “page 12”
Page 68, Annex 3A, Table 6.7, first column, tenth row, correct the wording “Working
Page 86, paragraphs A.22. to A.24., correct the references (3 times) to “Annex 3” to read
Page 91, the numbering of the annex, correct “Annex 3 – Appendix D” to read “Annex 3A – Appendix D”.
Page 96, Annex 3A – Appendix F, the note to paragraph F.2.2., correct the figure “36 MPa” to read “26 MPa”.
Page 103, Annex 3A – Appendix H, paragraph H.6.(a), correct to read:
Page 109, Annex 3B, paragraph 4.1., correct to read (re-insert paragraph numbering 4.2.):
Page 110, Annex 3B, paragraph 4.6.(b), correct the wording “the external vessel surfaces” to read “the external tank surfaces”.
Page 112, Annex 3B, paragraph 4.15.1., correct the reference to paragraph 6.11. to read paragraph 4.11.
Page 118, Annex 3B – Appendix C, paragraph C.5., correct the wording “to cause cylinder material damage” to read “to cause tank material damage”.
Page 119, Annex 3B – Appendix D, item 6., correct the wording “Serial number: from to inclusive” to read “Serial number: from …… to …… inclusive ……”.
Page 122, Annex 4A, paragraph 7.3., correct the reference to paragraph 2 to read paragraph 3.
Page 142, Annex 4B, paragraph 126.96.36.199., correct the reference to paragraph 188.8.131.52. to read paragraph 184.108.40.206.
Page 143, Annex 4B, paragraph 220.127.116.11., correct the reference to paragraph 18.104.22.168. to read paragraph 22.214.171.124.
Page 143, Annex 4B, paragraph 126.96.36.199., correct the reference to paragraph 188.8.131.52. to read paragraph 184.108.40.206.
Page 144, Annex 4B, paragraph 220.127.116.11., correct the reference to paragraph 18.104.22.168. to read paragraph 22.214.171.124.
Page 151, Annex 4F, footnote 1, correct “Road vehicles Compressed Natural Gas” to read “Road vehicles Compressed Natural Gas”.
Page 158, Annex 4J, paragraph 126.96.36.199., correct the wording “completion of the room temperature cycles” to read “completion of the high temperature cycles”.
Page 165, Annex 4N, paragraph 6.4., correct the wording “The LNG non-return valve” to read “The LNG manual valve”.
Page 176, Annex 5E, paragraph 2., correct the reference to “ISO CD 15500-2” to read “ISO 15500-2”.
[The proposal in document WP.29/2013/101 was adopted pursuant to the corrections specified in the informal document WP.29-161-05, including the specification for the installation of an automatic shut-off valve on LNG tanks.]
Preventing LNG fuel downstream of the vaporizer
49. Mr. Dekker: There are temperature sensors that can be used to detect temperatures lower than design temperatures of the components downstream of the vaporizer. This was raised by Andrew Whitehouse (CAP) during the last LNG Task Force teleconference also as one of the possible safety ‘systems’ that could be provided under the proposed amendment.
50. Mr. Piccolo noted that there is a concern temperatures downstream on non-LNG components. Mr. Whelan indicated that there are safety features to identify low temperatures that might affect, for example, a CNG solenoid valve. Also, too much cold fuel will shut down the engine.
Minimum height of LNG tank mounted on the truck
51. Mr. Dekker said that 200 mm should be the minimum height above the ground, taking into consideration things like traffic calming measures (also called ‘speed bumps’/’sleeping policemen’). What happens if the truck wheels are on either side of the speed bump and it comes in contact with a low-hung fuel tank?
52. Mr. Rijnders asked if the original Scania tank language said ‘shall’ or ‘or (in front of the container and/or tank shall not touch the ground if any tire or tires are deflated)’. The Dutch had prescribed 200mm and if it is lower there should be protection on the tank. Mr. Seisler indicated that the LNG TF had such a discussion and the solutions were too cumbersome.
53. Mr. Dekker asked if the 200mm shall be ‘from the lowest part of the tank.’ Mr. Seisler indicated that this comment would be raised in the next discussion of the LNG TF, scheduled for 16th December 2013.
34. The expert from the Netherlands introduced GRSG-106-24 proposing amendments on the installation of LNG fuel tanks to avoid them touching the ground. GRSG noted some comments and agreed to resume consideration of this subject at its next session on the basis of an updated proposal by the Netherlands.