Water heating system of a five-storey residential building with an attic cover

In this course project, a water heating system for a five-story residential building with an attic covering has been developed and calculated, the floor height is 2.8 m. 

The design parameters of the external and internal air were found, the heat engineering calculation of the external fences was performed, the heat loss through the external enclosing structures of the building and the heat loss of the building were determined according to the enlarged indicators. And also the calculation of heating devices, the hydraulic calculation of the main circulation ring, the selection of the mixing pump were performed. A two-pipe heating system with upper wiring and the location of the heating point are adopted . The selection of the equipment of the heating unit was carried out. 

A dependent scheme for connecting the local heating system to external heating networks is used. Connection is carried out through an individual heating point. ITP is installed in the basement of the building.  The coolant is water. .

The pipelines of the heating system are designed from steel water and gas pipes GOST 3262 - 75 *.

Air removal from the system is carried out through air collectors installed at the upper points of the heating system.

The area of windows, doors and other openings is measured by the smallest construction opening. The area of the ceiling (pt) and floor (pl) are measured between the axes of the interior walls and the inner surface of the outer wall. The dimensions of the exterior walls are taken horizontally along the outer perimeter between the axes of the inner walls and the outer corner of the wall, and in height - on all floors except the bottom: from the level of the clean floor to the floor of the next floor.  When determining heat loss through the inner walls, their areas are measured along the inner perimeter.

Content

Introduction. 3

1. Design parameters of external and internal air.  

2. Heat engineering calculation of external fences.  

3. Calculation of heat loss of the building according to enlarged indicators. 

4. Adopted heating system and location of heating point. 

5. Calculation of heating devices. 

6. Hydraulic calculation of pipelines. 

7. Calculation and selection of equipment of the heating unit. 

8. The main thermal characteristics of heating devices. 

References.

Appendix 1. 

Appendix 2. 

Appendix 3.