Noise and vibration control for HVAC

CIBSE Guide B5: Noise and vibration control for HVAC for NI:-IC is the replacement for section B12 of the 1986 edition of CIBSE Guide B(j). It has been comprehensively rewritten to take account of developments in the subject in the intervening years. It is intended for use by practising designers who hold a basic knowledge of the fundamentals of building physics and building services engineering.

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Ventilation and air conditioning of buildings are the subject of increasing interest both because of their contribution to effective building performance and occupant satisfaction, and the increasing focus on energy consumption and carbon emissions from buildings. A particular cause of interest is the recently revised Part L(” of the Building Regulations for England and Wales (and its equivalent Part J of the Building Standards (Scotland) Regulations(?)). The new Part L and its equivalent sets challenging new targets for energy efficiency of buildings in general and of mechanical ventilation systems in particular.

Noise and vibration control for HVAC Content

• Introduction
• Summary of noise and vibration problems from HVAC
• Noise sources in building services
• Noise control in plant rooms
• Airflow noise – regeneration of noise in ducts
• Techniques for control of noise transmission in ducts
• Room sound levels
• Transmission of noise to and from the outside
• Criteria for noise in HVAC systems
• Noise prediction
• Vibration problems and control
• Summary of guidance on noise and vibration control

Noise and vibration control for HVAC References

• I : Acoustic terminology
• 2: Generic formulae for predicting noise from building services plant
• 3: Interpreting manufacturers’ noise data 44
• 4: Basic techniques for prediction of room noise levels from HVAC systems
• S: Noise instrumentation
• 6: Vibration instrumentation
• 7: Direct and reverberant sound in a room
• 8: Noise criteria
• Index

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