Abstract
In Europe, the official type test method (oTT) according to the standard EN 13240 evaluates the emissions and thermal efficiency of firewood roomheaters only under optimal conditions, i.e. heated-up and at nominal load. In this study a novel test method, called “beReal”, is presented which was developed to reflect real-life operation within the testing procedure. The “beReal” test concept consists of a heating cycle with eight consecutive batches and covers all typical phases of real-life operation. A specific procedure based on volume flow measurements evaluating the emission and the efficiency of the whole test cycle was defined. A comparative assessment of the ”beReal“ and EN test protocol was conducted with a serial-production stove and compared with oTT results. The repeatability of EN and ”beReal“ test results regarding emissions and thermal efficiency was evaluated. The EN test results of this study were more than 200% higher compared to oTT results of the used stove model. Hence, it seems that the...
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