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Chapter 4 – Measurement units and conversion factors

Chapter 4 – Measurement units and conversion factors. Results of the second worldwide consultation. Chapter contents. Introduction (4%) Measurement units (36%) Calorific values (50%) Recommendations (10%). A - Introduction Original versus common units B - Measurement units

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Chapter 4 – Measurement units and conversion factors

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  1. Chapter 4 – Measurement units and conversion factors Results of the second worldwide consultation

  2. Chapter contents • Introduction (4%) • Measurement units (36%) • Calorific values (50%) • Recommendations (10%)

  3. A - Introduction • Original versus common units B - Measurement units • The International System of Units (SI) • Original units (mass, volume, energy) includes detailed discussion on energy units (Joule, Calorie, Btu, toe/tce, kWh…) • Commonunits C - Calorific values • Grossvs. net calorific values • Default vs. specific calorific values • Tables • Fuelwood and other biomass D - Recommendations

  4. Tables provided • Default net calorific values (NCV) for: - solid fossil fuels and derived products (Table 1) - natural gas and oil (Table 2) - biofuels and waste (Table 3) • Fuelwood - influence on moisture on NCV (Table 4) - volume/weight conversion table (Table 5) • Recommended units for dissemination (Table 6)

  5. Format of Table 1, 2 and 3 (calorific values for energy products)

  6. Fuelwood tables Table 3 Table 4

  7. Table 6 – Recommended units for dissemination

  8. Result of the WWC - summary Q.1: Do you overall agree with the contents of this chapter? Q.2: Do you overall agree with the recommendations provided in this chapter?

  9. WWC – comments received • 48 comments received • From the comments we have identified • 20 issues for which we need the opinion of the Expert Group; and • 11 straight-forward issues (editorial and other) for which the Expert Group is also invited to comment.

  10. Discussion A list of issues brought up by the respondents to the 2nd WWC has been prepared and presented to the Expert Group. Members of the expert group are invited to provide their opinions on the presented issues.

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