2. ABBREVIATED DESCRIPTION OF TYPICAL PROJECT CREATION STAGES <br>

# 2. Abbreviated description of typical project creation stages

## 2.1. Introduction

In this chapter the basic stages of building data input to the Instal-heat&energy program have been described. Abbreviated descriptions of each stage have been also given, whereas detailed description of various functions and mechanisms of the program have been included in following chapter of this instruction. In successive chapters of this instruction have been also described in detail all project elements and data of these elements. Calculations are performed by the program simultaneously with data edition.

Because of the possibility of building description in tabular and graphical way, there are possible two methods of work with program:

1. Program User can create data in graphical editor of Instal-therm program by drawing of storey plan views or loading and interpretation of DWG or DXF files including plan views drawn by an architect. Such data are called graphical data. After loading to Instal-heat&energy program these data are interpreted tabular and possibility of their modification in area of structure and geometry of the building are locked – such modification is possible in Instal-therm only.

2. Program User can input tabular data, e.g. describe the building by definition of compartments and partitions separating these compartments directly in data tables.

In each case described above the construction of partitions and vertical geometry of building (e.g. heights and ordinates of a storey) will be described in the same way – tabular.

Graphical data can be completed with tabular data. A typical situation where it should be done this way is lack of cellars and/or attic plan views in graphical data. In this case we can act in two ways:

- -these compartments will be added as tabular, together with partitions separating them from heated ones and with their cooling partitions, what enables calculation of temperatures in these compartments by the program (recommended method, necessary in case of seasonal energy demand calculation)

to (graphical) heated compartment add tabular cooling partitions to attic and cellars, specifying temperature on the other side of this partition – this is faster method, but makes correct calculation of seasonal energy demand impossible. It is also possible to declare the presence of normative heated/non-heated compartments on the other side of partition. These compartments can be selected from the same building/flat or from outside of it. More information to this you can find in chapter 4.5.3.1.

Partitions can have described construction of layer. Heat transfer coefficient “Uo” is then calculated in program. This coefficient can also be directly entered in compartment description or in partition definition.

! Tabular data are entered in adequate definition fields. Some of these fields are marked with colour. Bright yellow colour means, that this field represents result value, which can also be edited. Fields in green colour means result value, but not editable. Fields in bright grey represent edition fields, the content of which can be completed, but this is not a requisite condition. A value entered in this field can be edited. Grey colour of edition field represents result value, not editable. Fields in grey shades can change their accessibility for selected field, for example after the change of partition type.