If an university has many single use licenses under their educational model is there any option to automate the installation and authorization of a lab that reduce the work for the administrator of those licenses?
Omar,
I am not familiar with your school's contract but there is site license where one authorization code can authorize up to x number of licenses. This way you can install and authorize the application silently. As for the license itself, contact Esri's Customer Service or Account Manager to discuss your options.
You may want to check out batch installations. You can also use a command line to authorize licenses with a prvc file:
ArcGIS Desktop silent install script