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BS EN 17763:2022 Centrifuges. Marine fuel centrifuges. Determination of particle separation performance and certified flow rate (CFR) under defined test conditions >
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BS EN 17763:2022 Centrifuges. Marine fuel centrifuges. Determination of particle separation performance and certified flow rate (CFR) under defined test conditions, 2022
- undefined
- European foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Test arrangements [Go to Page]
- Figure 1 — Test rig [Go to Page]
- 5 Performance test [Go to Page]
- 6 Analysis [Go to Page]
- Figure 2 — Example of separation efficiency/flow rate [Go to Page]
- Table 1 — Correction of measured capacities [Go to Page]
- 7 CFR results for similar machines (scaling)
- 8 Test report
- Annex A (informative) Dispersing the particles in the test medium
- Annex B (informative) Regeneration of test particle concentration
- Table B.1 — Calculation of the amount of particles to add
- Annex C (normative) Particle counting
- C.1 General
- Figure C.1 — Counting chamber according to Thoma (T)
- Figure C.2 — Counting chamber according to Thoma, “new” (TN)
- Figure C.3 — Counting chamber according to Neubauer (N)
- Figure C.4 — Counting chamber according to Neubauer, “improved” (NI)
- Figure C.5 —Illustration of glass ware with two (2) counting chambers
- C.2 Preparation of the Thoma/ Neubauer counting chamber
- C.2.1 Cleaning
- C.2.2 Preparation for counting
- Figure C.6 — Pushing on the cover glass with interference rings (Newton rings)
- C.3 Feeding the counting chamber
- Figure C.7 — Feeding the counting chamber using a pipette
- C.4 Counting the particles within each counting field
- Figure C.8 — Illustration of the meandering course
- Figure C.9 — Illustration of the counted particles (black ones)
- C.5 Formulae
- Table C.1 — Symbols used for the formulae in this Annex
- Annex D (informative) Example of correction of measured capacities
- Table D.1 — Example of a test to simulate 380 mm2/s
- Table D.2 — Applied correction factors
- Bibliography [Go to Page]