All GEK Reactors | GEK Imbert Downdraft | Open Core: Updraft & Downdraft | Pyrolysis-Biochar | Test Reports

The tests below are the early GEK tests in 2008 exploring the performance of the air-preheating system and resulting internal temps and tar conversion. These tests were all done using manual probes and visual “quantification”.  Gas quality reports are based on observed conditions after the filter train.

In the spring of 2009 we started running more elaborate tests using the datalogging capabilities of the new GEK Gasifier Control Unit. These tests record many more run variables than the 08 tests, and do so over a wider range of fuel types.  The new tests also change to reporting gas conditions right after the reactor, BEFORE any filtration, and thus much more finely describe actual GEK reactor performance. Click here for the new quantative datalogged tests.

When comparing between the different test sets, or between any two gasifier performance claims, be sure to clarify whether filtration is or is not included in the results. Filtration can cover many sins–at least for a short while until it clogs, or just overwhelms the cost of manufacture and logistics of operating the results.  The conditions right after the reactor, before filtration, more honestly tells you how well the reactor is performing and the degree of problem leftover to solve with downstream filtering.

GEK Report #1: Air Preheating Tubes: Zero Tar Gas

GEK Report #2: Soot Deposition on Air Preheating Tubes

GEK Report #3: Temperature Profile Data for Air Preheating /Syngas Cooling