In one embodiment, an irrigated ablation system includes a probe to beinsertedinto a chamber of a heart, the probe including an electrode, a temperaturesensor to provide atemperature signal indicative of a temperature of a myocardium, and anirrigation channelthrough which to irrigate the myocardium, a pump to pump an irrigation fluidinto the irrigationchannel, an RF signal generator to generate RF power to be applied by theelectrode to ablatethe myocardium, and a controller to receive the temperature signal, calculatea rate of changeof the temperature over time based on the temperature signal, calculate anirrigation rate withwhich to irrigate the myocardium via the irrigation channel based at least onthe calculated rateof change of the temperature, and provide an irrigation signal to the pump toirrigate themyocardium with the irrigation fluid at the calculated irrigation rate.
