Acoustic in LNG

Question 1

Please provide your information (Name, Company,Function)

LNG plants

mandatory answer

Question 2

To define and caracterize the size of an LNG plant, is it better to concider:

MPTA = Million Tonnes Per Annum

mandatory answer

Question 3

Indicate the MPTA borders for the 3 LNG size (small, mid '& large).
Figures to be in MTPA. If different unit from MPTA, please mention it in the comments area bellow.

Example (if concidering capacity of the LNG trains)
- small size < 2 MTPA/train
- mid size < 5 MTPA/train
- small size > 5 MTPA/train

Example (if concidering the total LNG site capacity)
- small size < 4 MTPA
- mid size < 10 MTPA
- small size > 10 MTPA

Comments

mandatory answer

Question 4

How many LNG trains are usually installed on a LNG plant? (average value)

mandatory answer

Question 5

What is the usual composition of 1 LNG train for following equipment in LNG ?
gas turbines – Compressors - Air cooler fan group
(these equipment are concider to be the noisiest in a LNG plant)

Example:
- 6 gas turbines: 2 (methane) + 2 (Ethylene) + 2 (Propane)
- 6 Compressors: 2 (methane) + 2 (Ethylene) + 2 (Propane)
- 3 Air cooler fan group: 1 (methane) + 1 (Ethylene) + 1 (Propane)

LNG equipment (noiest acoustical equipment)

Turbine acoustical insulation

mandatory answer

Question 6

Preference for enclosure or acoustical blankets? Why this technical choise?

How are they insulated today? What are the criteria of selection? What are the technology used?

Comments

mandatory answer

Question 7

Turbine dimensioning for each LNG plant size

please fill in the commentx box, the unit used for the Turbine Capacity, the enclosure dimension and The acoustical blanket surface

Comments

Compressor acoustical insulation

mandatory answer

Question 8

Preference for enclosure or acoustical blankets? Why this technical choise?

How are they insulated today? What are the criteria of selection? What are the technology used?

Comments

mandatory answer

Question 9

Compressor dimensioning for each LNG plant size

please provide in the comments box, the unit used for the Compressor Capacity, the enclosure dimension and The acoustical blanket surface

Comments

Fan group acoustical insulation

Question 10

What are the acoustical target '& requirements?

Question 11

How are the air fab group acoustically insulated today?

mandatory answer

Question 12

what size are the air fan groups in LNG plants

please provide in the comment area the unit used for the Air fan group size

Comments

LNG Piping network distribution

mandatory answer

Question 13

please complete the folowing matrix with the pipe length needed for each acoustical piping class (ISO 15665)

please provide in the comment area the unit used for the piping length

Comments

Question 14

When insulation is used on site, please rate how important each insulation purposes hereunder are:

0 --> not important
5 --> most important

Thank you for your participation to this Acoustic LNG questionnaire