COMPASS-EI–Manual – Chapter 5
Page
43
CHAPTER 5: EQUIPMENT RELATIONSHIPS
5.1 About Equipment Relationships
Equipment Relationships provide information for the system to use regarding how your emission
Sources, Points and Control devices are related to each other. These relationships are extremely
important for understanding the organization of information in your emission inventory, and to
use COMPASS-EI. COMPASS enables different equipment relations to be defined for purposes
of emission inventory reporting, calculating, and regulatory reporting such as for Title V. For
example, a loading rack may be shown as a part of the Loading Unit for emission inventory
reporting, but also referred to under Process 001 in Emission Unit 29003 for purposes of Title V
Permitting and Compliance Certification. Although different sets of equipment relationships
invite more complexity in representing the plant, its equipment, and its air emissions, the fact is
that governmental regulations virtually require that these capabilities of the COMPASS be used
to their fullest extent.
To enter the Equipment Relationships section of EI, choose the
Equipment Relationships
selection from the
File
menu. A screen appears that contains one window for selecting the
ACCOUNT,
and a second window that shows equipment relationships along with certain
columns of descriptive information about each relationship. (See
Figure 5.2
) Each of these
columns is discussed below. A block flow diagram may be produced by selecting the icon
labeled Block Flow. (See
Figure 5.1
)
