There are direct trains from Copenhagen Central station to Odense Train Station. With the fast train the ride is about 75 minutes. Train schedules can be found on Rejseplanen.dk.
From Odense train station you can either take a taxi (about 150 DKK or 20 €) or take bus number 40, 41 or 42 labeled Universitetet that drives directly to the university. Also see the interactive map of the university.

Local Taxi Services:

Taxa Fyn  (+45) 66 15 44 15
Odense Taxi (+45) 66 12 27 12

Addresses

Department of Physics, Chemistry and Pharmacy

University of Southern Denmark
Campusvej 55
5230 Odense M
Denmark
Telephone: +45 6550 3520
Email: fkf@sdu.dk

Mads Clausen Institute

University of Southern Denmark
Alsion 2
6400 Sønderbog
Denmark
Telephone: +45 6550 1690
Email: mail@mci.sdu.dk