180-seat dining room ventilation

Contents

Introduction

1. Air balance of premises

2. Duct Calculation

2. Aerodynamic calculation

3. Fundamental decisions on the organization of air-thermal

room mode

4.1 Supply systems

4.2 Exhaust system

4.3 Ventilation ducts and ducts

Conclusion

List of literature used

Introduction

The main direction of the development of ventilation is the work on creating favorable conditions for high-performance work, improving the living and leisure conditions of the population, improving control over the state of the internal environment and its sources of pollution.

In modern production conditions, the main task of ventilation is to maintain permissible parameters in the premises and ensure the best conditions for work in the industry. When designing ventilation, the traditional preference is given to the simplest of the methods that provide the given conditions, in which the designers strive to reduce the performance of the systems, taking reasonable design and planning solutions of the building, introducing technological processes with a minimum of harmful emissions, arranging shelters for the formation of harmful emissions.

4. Fundamental decisions on organization of air-thermal conditions of premises

4.1 Supply systems

Plenum systems - one of the types of mechanical ventilation, serve to supply clean air to ventilated rooms instead of remote.

The building is equipped with three systems of mechanical plenum ventilation. One system is designed for the corridor, fruit storage cells, a storeroom, the second for the dining room, the third for all other rooms. Ventilation channels use metal rectangular sections.

4.2 Exhaust system

Exhaust ventilation systems are designed to take contaminated air from certain places of the room, and, if necessary, are equipped with installations for cleaning from harmful impurities, the release of which is prohibited to the atmosphere.

Typical exhaust ventilation consists of air intake devices, a system of air ducts through which air moves, air purification devices, a ventilation fan and an air flow ejector.

The building is equipped with exhaust systems. The number of exhaust systems depends on the following factors:

• Room assignments

• Nature of hazards

For sanitary units there is a separate exhaust plant with a mechanical impulse. Grilles are used SEASON GRG (horizontal arrangement of individually adjustable louvres). They are made of an aluminum profile in the form of a frame and horizontally located diamond-shaped louvres, the inclination angles of which are installed individually and controlled independently of each other to change the direction of air flow. The grid design provides for standard fastening using a screw connection.

4.3 Ventilation ducts and ducts

In the building, rectangular air ducts are designed for the gasket, since they are combined with the interior of the interior. Air ducts are routed taking into account their smallest length.

Conclusion

As a result of the design of the ventilation system of the industrial building, the following calculation was made:

• air mode of premises (with selection of plenum and exhaust grids, as well as air distribution plates)

• aerodynamics of plenum and exhaust systems (with selection of plenum chamber equipment)