Sites

The "Sites" section is primarily used in projects with more sites where the "Site Overview" shows an overview of the different sites and transmissions.

The graphical overview of a single site is shown either by clicking on sites on the left-hand vertical menu and then double clicking the site from the menu that appears or by double-clicking on it in the graphical Sites overview. The appearance and functionality of the graphical overview of a single site is described previously in Introduction, Graphical Editing.

Adding more sites

If you have purchased the REGION module you can add more sites to a project by selecting sites from the left hand menu and selecting Add Site from the top ribbon menu, as seen below.

Besides adding a new empty site it is also possible to load sites in to your project. When loading sites in to your project the loaded file is another energyPRO project file. So basically this functionality can be used to merge two or more energyPRO projects.

When loading sites from another project file energyPRO will try to identify the identical external conditions, fuels and economy lines so that these are not duplicated in the final project. However, it is strongly recommended that the user verifies that the merging was done in the desired way.

Temperatures for the hydraulic calculation

If “Hydraulic transmission” in the Calculation Setup tab is enabled, at each site you need to add input for the hydraulic calculation. Right click a site and choose Open, as shown below.

Next enter the minimum required supply and return temperatures for the site, see example below.

The supply temperature is the minimum temperature needed at the site. The value can for example be determined based on the minimum temperature needed to supply heat demands, the minimum temperature at which a unit at the site produces heat or the minimum temperature at which a unit at the site consumes heat.

The return temperature is the mixed temperature returning from heat demands in the site or from transmission lines to the site.

The site data can be seen in a table as illustrated below.

Please notice, that the hydraulic calculations in energyPRO are based on splitting the district heating grid in temperature zones – this is described in Methods, Hydraulic Transmission, Temperature Zoning.