A student from the Jesus and Mary secondary school in Enniscrone won an award at the BT Young Scientist and Technology exhibition on Friday last.
Eamonn Sweeney (17) from Rathlee won in the special award category at the national event.
Eamonn's project was titled 'Stayin' Alive: Investigating the effects of a metronome on lay people performing CPR'.
His Science teacher, Ms Helena Ryder, said the Chemistry and Biology student had spent more than a year working on his assignment.
The novel project explores how CPR (heart massage) could be applied at the right frequency by using beats on a mobile phone's loud speaker as a guide.
He was presented with a special award from the Health Research Board.
Ms Ryder said: "Eamonn also won top prize at the Young Scientist SciFest in IT Sligo last May.
"He progressed to the finals in Dublin.
"Coincidentally, the overall winner of that event was Paul Clarke, from Dublin, who was also named the BT Young Scientist of the Year at the weekend."
The Jesus and Mary secondary school is no stranger to winning awards at the BT Young Scientist and have received numerous prizes and commendations in the past.
Meanwhile, a team from the Ursuline College won a Highly Commended award in the Biological and Ecological section.
Kathy Devaney and Laura Joyce based their project on 'Stimulating adrenaline production in athletic performance'.
Their teacher was Ms Bernadette Cawley.
Marian Harkin, MEP, visited their stand at the event.