The hotel is quite a complex object in terms of designing ventilation systems. Any hotel consists of many rooms with different purposes: living rooms, bathrooms, kitchen. In 4 and 5 star rooms there are necessarily banquet and sports halls, bars, beauty salons, restaurants, etc. And each room requires strictly defined microclimate parameters.
Features of hotel ventilation systems
From properly designed ventilation systems, comfort directly depends, and, accordingly, the time spent by guests in the complex. That is why the hotel ventilation system must meet the following requirements:
- Efficiency. All air exchange regulations must be observed. In hotel rooms — 60 m3/h; in showers and bathrooms — 120 m3/h; in conference rooms at least 30 m3/h. In other rooms, compliance with other standards is required, in accordance with the current SNiP and regulatory documents.
- Noiselessness. Silence is one of the defining requirements, since the main number of rooms in the hotel are bedrooms.
- Reliability. Ventilation networks and their equipment must function 365 days a year and be available for repair and maintenance.
- Individuality. Any solutions should allow the creation of the most comfortable microclimate parameters for guests in each individual room.
There are many requirements for hotel ventilation. SNiP P‑L. 17–65 allows the creation of a natural ventilation system with an extract from the bathrooms or toilets, if any in the rooms. In areas with an air temperature of ‑40 ° C during the cold season, mechanical air inflow with its heating and, if necessary, humidification should be provided. The same SNiP regulates the installation of thermal curtains at the entrances to hotels located in areas with outdoor temperatures in winter below ‑15C°. http://www.youtube.com/watch?v=CPxZrtuiDHk
The most common schemes
The scheme of the ventilation system, first of all, depends on the category of the hotel. If the hotel has been assigned a category of 4 stars or more, then each room, regardless of its cost, must be equipped with a forced ventilation system. The supply and exhaust ventilation for high-end hotels is designed with fresh air supplied through air ducts from a centralized supply unit to each room, and the exhaust is carried out from bathrooms, bathrooms and showers.
In hotels of low categories (3 stars and below), it is allowed to create a natural ventilation system with the influx of fresh air masses into the rooms through open vents or automatic supply valves installed on the windows. The removal of polluted air is carried out through the hoods in the bathrooms.
Device and design features
Most often, in 4–5 star hotels, a solution is used with central air conditioning, and the installation of chillers and fan coil units. This option allows you to ensure that all requirements for ventilation and air conditioning of hotel premises are met without violating the design of the building.
The chiller, together with the exhaust fan for extracting the exhaust air, is located on the roof of the hotel building, which ensures the quiet operation of the equipment for the guests of the complex. Fancoil units located behind the false ceiling allow you to set the optimal parameters of the microclimate in the rooms. In such a system, an important role is played by the central air conditioner, usually located in the basement of the building. For water circulation, a pumping station is used, which is most often located on the roof of the hotel complex. This solution has several undeniable advantages:
- All hotel ventilation standards are observed regarding temperature, humidity and air flow rate.
- This scheme is the cheapest, as it works on water. This allows you to significantly reduce the cost of maintenance.
Ventilation equipment for mini-hotels
The scheme of ventilation and air conditioning of rooms, made on the basis of an exhaust ventilation fan, a central air conditioner, chillers and fan coil units, has shown itself perfectly in large hotels. In mini-hotels, most often, to create a comfortable microclimate, supply and exhaust devices of the required capacity are installed, together with a multi-zone air conditioner.
Such installations ventilate, heat, and also filter the air coming from the street for subsequent distribution throughout the hotel premises. To reduce the cost of space heating, supply and exhaust equipment with air recovery is most often used.
The use of multi-zone air conditioners makes it possible to create the most comfortable microclimate in each room without violating the design of the facade of the building.
Before creating a complex and branched ventilation network in a hotel complex, complex calculations are required. That is why to design and install a competent and efficient system for creating an optimal microclimate, it is best to turn to professionals.