Simulating a structure within a Greenhouse


I’m trying to simulate a structure within a greenhouse [Box-in-a-Box], and I’m finding it hard to get correct EUI, UDI, DA values.

Does anyone have experience in this topic and a possible guide to how to simulate such a structure where one can measure the air temp, UDI, DA, EUI in a year for both the greenhouse space and the interior of the structure within the greenhouse?

Kind regards,