An EngD is a PhD, with some bells and whistles. Like a PhD, it is in essence a 9-5 (or more at times, perhaps) job for 3-4 years. It's a research degree, so there are no "modules" in the sense of exam based courses, unless it's one with an integrated MRes (which a lot of EngDs have, but I don't think this one does) - in which case any such modules are restricted to the first year of 4 (ish) and there are normally only a couple as the focus is on the research element. However you may well be asked or encouraged to attend some lecture series' from either other masters degree programmes or final year undergrad courses, and you'll undoubtedly have specific skills development courses/sessions which are likely to vary depending on the project.
That's more of less the "PhD" side of it - the EngD bit is that it's sponsored by a company in industry, who add an "enhancement" to the usual PhD stipend (which is from the EPSRC for most of the EngDs) to begin with, usually bumping you up to close to 24k a year (which is also all untaxed, so factoring that in is pretty generous). You end up splitting your time in the EngD, spending some working at the host university with an academic and some working at the company on specific projects related to the actual industry. Both aspects will form the basis for your doctoral thesis in the end. The actual way the time is divided up probably varies between projects - some might have you spend 6 months alternating between them, or have short periods at one with longer periods at the other then swapping, or some might have you spend a couple days a week in an office in the same city potentially. I can't say for certain.
Regarding Exeter, I don't know, I certainly had a somewhat negative experience there...which wasn't necessarily the fault of the uni, but I can't shake the association
outside of Physics, I consistently got the impression that CEMPS basically sucked as a "faculty" within the university...and Physics was probably the exception because they were basically completely devolved from CEMPS. But, I digress...