Hotel Heating and Ventilation Renovation Project

Explanatory Note

Heating, ventilation and air conditioning

General part

The project was developed for the reconstruction of heating and ventilation systems built into the hotel complex of the pool with auxiliary rooms.

Calculated outside air parameters:

for the design of heating and ventilation in the cold period of the year -

t = -27 ° C, ¼ = 83%;

average temperature of the heating period - (5.1 ° С);

the duration of the heating period is 198 days.

Heat supply source - SarGRES heat networks.

Heat carrier for heating system - hot water with parameters

95-70 ° С.

Design internal air temperatures are accepted: in the pool room and showers + 28 ° C, in the rest room and massage room + 22 ° C.

Air exchanges in the rooms are accepted according to the reference manual for SNiP 2.08.0289 * "Design of pools."

Heating

The reconstruction of the heating system provides for the replacement of heating devices with an increase in their heating surface and the removal of main pipelines of the heating system in the place of the designed door opening without changing the topology of the system. Cast iron radiators MS140 are used as heating devices. Heating system pipelines are accepted from non-galvanized steel water supply pipes, common as per GOST 326275 *. Pipelines and heating devices are painted with PF837 enamel twice by factory primer .

Ventilation

Ventilation is projected by the supply with mechanical and natural motive.

In the pool room in the cold period of the year, supply air is provided by the P1 system in the amount of 4.5 crats of the room volume. The air is heated by an electric air heater. Control of supply air temperature is provided by power regulators of electric heaters. In the warm period of the year - ventilation through the windows. Extract mechanical with prevalence over inflow in 0.5 krat B1÷B3 systems through the existing channels in walls. The systems work around the clock. The exhaust from the bathrooms is mechanical by the B4 system through the existing channel in the wall. In the massage room and the rest room, ventilation is provided through the windows, drawing through existing channels.

Air ducts of P1, B1 systems are adopted from thin-sheet galvanized steel according to GOST 1491880 * class H (normal), systems B4 - Diaflex flexible air ducts of DF brand .

Air conditioning

Air conditioning is not provided as per the design assignment.