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Intercomparison to compare 3 radiometric methods A, B and C for measuring radiant efficiency on gas-fired overhead radiant heaters


The technical objectives are:
1. To elaborate and quantify adequate comparability parameters and correction procedures which interfere in the three radiometric methods A, B and C for determining the radiant efficiency of radiant heaters.
2. Specific research shall be undertaken on following error sources:
-calibration of the sensors
-sampling measurement points
-calculation procedure
-test conditions including conditions of the test room
-repeatability of results
3. To validate the requirement regarding the performance and the periodical control of the measurement equipment.
4. Regarding the sources of uncertainty the study will consist in:
-evaluate quantitativly the error of each source of uncertainty. This shall done by assessing existing knowledge (literature, bibliography...); in case the evaluable error information is insufficient than the error shall be experimentally quantified.
-Proposal: either a method for correcting test results in order to eliminate the influence of the perturbing parameters, or/and provide for appropriate test procedure.
In the latter case, the proposed solution shall be compatibel with type testing of appliances and shall not involve exaggerate expenses for the necessary equipment.
Four partnerswork together in a consortium, each partner is a national laboratory, which is an expert in investigations onthe performance of gas appliances.
The results will contribute to amend EN standards regarding gas-fired radiant heaters.

Funding Scheme

CSC - Cost-sharing contracts


Deutscher Verein des Gas- und Wasserfaches

76128 Karlsruhe

Participants (3)

Gastec NV
7327 AC Apeldoorn
Gaz de France
361,Avenue Du Président Wilson 361
93211 La Plaine Saint Denis
Laboratoire National d'Essais
5 Avenue Enrico Fermi
78190 Trappes