(Swedish version here, Italian translation here).

The new tests with the energy catalyzer, which seems to generate heat by an unknown nuclear reaction, took place in Bologna on 19 and 28 April, 2011.

As in previous tests the objective was to measure the net energy that the device generates as accurately as possible.

The results of the two tests showed a developed net power of between 2.3 and 2.6 kilowatts – of the order of a large stove plate. Input electric power was in the order of 300 watts.

As previously, the power output was calculated from the amount of water boiled into steam, and thus depends on the water flow. At the two new tests the water flow was set at a slightly lower rate than in previous tests.

The device used was the smaller version of the energy catalyzer, which was first shown at a test March 29, 2011.

The tests lasted for two and three hours respectively and the total net energy developed was calculated to be 5.6 and 6.9 kWh (see report for April 19 and April 28).

As Professor Sven Kullander and Associate Professor Hanno Essén noted previously, the energy released is greater than can be generated by a chemical reaction in the reactor, which has an estimated volume of 50 cubic centimeters.

At this point precise measurement is crucial if credibility in the process under study is to be established.

Hundreds of thousands of readers have now followed our reporting on the energy catalyzer, and in thousands of comments readers have discussed among other things possible sources of error in previous tests.

In the new tests, Ny Teknik aimed to reduce measurement uncertainty in three ways:

1. The ammeter used to measure the input current, from which the total power consumption is calculated, were calibrated by us against other instruments.

2.  Total water-flow input was measured by weighing.

3.  By calibrating the temperature-sensor probe in boiling water, we have as far as possible ensured that there is only vapor at the outlet of the energy catalyzer.

The last point has been discussed intensively. To assess developed energy, it’s essential that all the water flowing into the energy catalyzer evaporates, given that the phase change – evaporating water into steam – requires much more energy than mere heating.

Shortly before the test on April 28, we calibrated the probe by immersing it in a pot with boiling water, and the measured value was then 99.6 degrees centigrade.

The probe, which sits just below the outlet of the energy catalyzer, later during the test showed temperatures of about 100.5 degrees centigrade.

Therefore it cannot reasonably be in contact with water, thus there should be only water vapor (steam) at the outlet.

Alternatively, the probe is subjected to other heating, but probably not electrical as the temperature curve during start-up is quite uneven.

During the April 28 test, we also checked the steam flow through the outlet hose regularly. Some steam was reasonably being condensed back into water in the three-meter-long tube that was exposed to air and was thus at a slightly lower temperature, and a small amount of water was observed coming out of the hose.

The amount of water coming out before boiling was clearly larger, and this was initially measured.

We also controlled all other equipment and checked that there were no hidden connections from the floor or walls.

To safely exclude the transfer of external wireless energy, we measured electromagnetic fields from 5 Hz to 3 GHz. No increase could be noted except for a slight increase at the power-grid frequency of 50 Hz, close to the electrical resistor positioned around the reactor.

In the first test on April 19, the national Italian television channel RAI was present and its reportage will be broadcast on the channel RAI News (link to the reportage here – version in English here) Thursday, May 5th at 20:35.

In the second test on April 28 only Ny Teknik, the inventor Andrea Rossi, and a colleague of his were present.

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READ MORE: Our complete coverage on Rossi's E-cat can be found here.