Course project - Heating of a 2-storey residential building in Volgograd

City of proposed construction - Volgograd 
Building layout option:   3,   
Orientation of the main facade of the building to the cardinal points:   SW, 
Characteristics of the enclosing structures of the building:
External walls made of bricks on cement-sand mortar: 
- ceramic hollow 
Thermal insulation material for:                                    
1. Exterior Wall:  Styrofoam
2. Attic ceiling:   polyurethane foam
3. Ceiling above the basement: Styrofoam
Floor height: 3 m
Characteristics of the projected heating system:
Central heat supply, with coolant temperature T1 – T2:  150 -70 ºС 
with:     water jet elevator
up to the temperature of the coolant in the heating system tg – to: 95 – 70 ºС
Wiring of heating system lines:     lower, 
Flow diagram of the coolant:  dead-end 
The value of the working available pressure in the heating system P1–P2: 7000   Pa.

INFERENCE
In the course of the course project "Calculation of the heating system of a residential building", we designed a two-pipe water heating system for a two-story residential building with central heat supply, lower wiring of highways and a dead-end scheme for the movement of the coolant. Calculations were carried out: heat loss, heat loss of the building amounted to 32 780 W, hydraulic calculation of the main circulation ring, pressure loss amounted to 5299 Pa. Also, heating devices were selected - bimetallic radiators, their thermal calculation was made and the necessary number of sections of heating devices in each heated room was found. Since the connection to the heat networks is dependent with the mixing of the coolant, the equipment of the input unit - a water-jet elevator with the required characteristics - was selected.