Ventilation Design, Installation, Maintenance and Operation - CIBSE Guide B2 2001
CIBSE Guide B2 2001 PDF Download: What You Need to Know
If you are involved in the design, installation, maintenance or operation of ventilation and air conditioning systems in buildings, you need to know about CIBSE Guide B2 2001. This guide is a comprehensive source of information and guidance on how to ensure adequate ventilation and air quality in different types of buildings, according to the latest standards and best practices.
Cibse Guide B2 2001 Pdf Download
In this article, we will tell you what CIBSE Guide B2 2001 is, why it is important, how you can download it for free, and what are its main features and benefits. By the end of this article, you will have a clear understanding of how CIBSE Guide B2 2001 can help you improve the performance, efficiency and comfort of your ventilation and air conditioning systems.
How to Download CIBSE Guide B2 2001 PDF for Free?
CIBSE Guide B2 2001 is a publication of the Chartered Institution of Building Services Engineers (CIBSE), which is the professional body for building services engineers in the UK. CIBSE publishes a series of guides on various aspects of building services engineering, such as heating, lighting, acoustics, fire safety, etc. CIBSE Guide B2 2001 is the second volume of the series, focusing on ventilation and air conditioning.
CIBSE Guide B2 2001 is available in both hard copy and digital format. You can purchase the hard copy from the CIBSE online shop, or you can download the PDF version for free from the CIBSE website. To download the PDF version, you need to register as a member of CIBSE, which is also free. Once you register, you can access the CIBSE Knowledge Portal, where you can find and download CIBSE Guide B2 2001 PDF, as well as other CIBSE publications and resources.
To register as a member of CIBSE and download CIBSE Guide B2 2001 PDF for free, follow these steps:
Go to the CIBSE website: https://www.cibse.org/
Click on the "Join" button at the top right corner of the homepage.
Choose the membership option that suits you best. You can choose between Affiliate, Associate, Member or Fellow membership, depending on your qualifications and experience. Alternatively, you can choose Student or Graduate membership, if you are studying or have recently graduated in building services engineering or a related field.
Fill in the online application form with your personal and professional details. You will also need to upload a copy of your CV and any relevant certificates or diplomas.
Submit your application and wait for confirmation from CIBSE. This may take a few days or weeks, depending on the volume of applications.
Once your application is approved, you will receive an email with your login details and instructions on how to access the CIBSE Knowledge Portal.
Login to the CIBSE Knowledge Portal using your username and password.
Go to the "Publications" section and search for "CIBSE Guide B2 2001".
Click on the "Download" button and save the PDF file to your device.
Congratulations! You have successfully downloaded CIBSE Guide B2 2001 PDF for free. Now you can read it at your convenience and use it as a reference for your ventilation and air conditioning projects.
What are the Main Features and Benefits of CIBSE Guide B2 2001?
CIBSE Guide B2 2001 is a comprehensive and authoritative guide on ventilation and air conditioning in buildings. It covers all aspects of ventilation design, installation, maintenance and operation, including:
Ventilation requirements for different types of buildings, such as residential, non-residential and special buildings (e.g. car parks, swimming pools, laboratories, etc.).
Ventilation strategies and methods, such as natural, mechanical and hybrid ventilation.
Ventilation rates and air quality standards, based on the latest regulations and recommendations.
Ventilation controls and devices, such as fans, dampers, filters, sensors, etc.
Ventilation systems and components, such as ducts, grilles, diffusers, terminals, etc.
Maintenance and operation of ventilation systems for optimal performance and energy efficiency.
CIBSE Guide B2 2001 is based on sound scientific principles and practical experience. It provides clear explanations, illustrations, examples, tables and charts to help you understand and apply the concepts and techniques. It also provides references to other sources of information and guidance for further reading.
CIBSE Guide B2 2001 has many benefits for building services engineers and other professionals involved in ventilation and air conditioning in buildings. Some of these benefits are:
It helps you comply with the relevant regulations and standards for ventilation and air quality in buildings.
It helps you design and install ventilation systems that meet the needs and expectations of the occupants and users of the buildings.
It helps you maintain and operate ventilation systems that perform efficiently and effectively throughout their lifespan.
It helps you reduce the environmental impact and energy consumption of ventilation systems by adopting sustainable practices and technologies.
It helps you improve the health, comfort and productivity of the occupants and users of the buildings by providing adequate ventilation and air quality.
CIBSE Guide B2 2001: Ventilation and Air Conditioning
Ventilation Requirements for Different Types of Buildings
Ventilation requirements for different types of buildings vary depending on the purpose, function and occupancy of the buildings. CIBSE Guide B2 2001 provides guidance on how to determine the ventilation requirements for different types of buildings, such as residential, non-residential and special buildings.
Residential buildings are buildings that are used for living purposes, such as houses, flats, apartments, etc. Non-residential buildings are buildings that are used for other purposes, such as offices, shops, schools, hospitals, etc. Special buildings are buildings that have specific ventilation needs or challenges, such as car parks, swimming pools, laboratories, etc.
The ventilation requirements for different types of buildings are based on the following factors:
The type and level of activity and occupancy in the building.
The sources and amounts of pollutants and moisture in the building.
The desired indoor air quality and comfort conditions in the building.
The outdoor air quality and climate conditions around the building.
The energy efficiency and environmental impact of the ventilation system.
CIBSE Guide B2 2001 provides tables and charts that show the recommended ventilation rates and air quality standards for different types of buildings and spaces. These tables and charts are based on the latest regulations and recommendations from various sources, such as Building Regulations, British Standards, World Health Organization, etc.
Residential Buildings
Residential buildings require ventilation to provide fresh air for the occupants and to remove pollutants and moisture from the building. The ventilation rate for residential buildings depends on the number and size of the rooms, the number and habits of the occupants, the type and use of appliances and equipment, etc.
CIBSE Guide B2 2001 recommends two methods for determining the ventilation rate for residential buildings: the whole dwelling method and the individual room method. The whole dwelling method calculates the ventilation rate based on the floor area and occupancy of the whole dwelling. The individual room method calculates the ventilation rate based on the floor area and occupancy of each room. The higher of the two methods should be used.
The recommended ventilation rates for residential buildings are shown in Table 3:
Table 3: Recommended ventilation rates for residential buildings Room type Ventilation rate (l/s) --- --- Living room 1.0 per m or 5.0 per person Dining room 1.0 per m or 5.0 per person Kitchen 13.0 (with extract fan) or 60.0 (with cooker hood) Bedroom 1.0 per m or 5.0 per person Bathroom 8.0 (with extract fan) Toilet 6.0 (with extract fan) The recommended air quality standards for residential buildings are shown in Table 4:
Table 4: Recommended air quality standards for residential buildings Pollutant Concentration limit --- --- Carbon dioxide (CO2) 1000 ppm Carbon monoxide (CO) 10 ppm Nitrogen dioxide (NO2) 40 µg/m Formaldehyde (HCHO) 100 µg/m Volatile organic compounds (VOCs) 300 µg/m Relative humidity (RH) 40-60% Non-Residential Buildings
Non-residential buildings require ventilation to provide fresh air for the occupants and to remove pollutants and moisture from the building. The ventilation rate for non-residential buildings depends on the type and function of the building, the number and activity of the occupants, the type and use of appliances and equipment, etc.
CIBSE Guide B2 2001 recommends two methods for determining the ventilation rate for non-residential buildings: the occupancy method and the pollutant method. The occupancy method calculates the ventilation rate based on the number and activity of the occupants in each space. The pollutant method calculates the ventilation rate based on the sources and amounts of pollutants in each space. The higher of the two methods should be used.
The recommended ventilation rates for non-residential buildings are shown in Table 5:
Table 5: Recommended ventilation rates for non-residential buildings Building type Ventilation rate (l/s per person) --- --- Office 8-10 Classroom 8-10 Lecture hall 6-8 Library 6-8 Shop 8-10 Restaurant 10-12 Hospital ward 6-8 Hospital operating theatre 20-25 The recommended air quality standards for non-residential buildings are shown in Table 6:
Table 6: Recommended air quality standards for non-residential buildings Pollutant Concentration limit --- --- Carbon dioxide (CO2) 1000 ppm Carbon monoxide (CO) 10 ppm Nitrogen dioxide (NO2) 40 µg/m Formaldehyde (HCHO) 100 µg/m Volatile organic compounds (VOCs) 300 µg/m Relative humidity (RH) 40-60% Special Buildings
Special buildings are buildings that have specific ventilation needs or challenges, such as car parks, swimming pools, laboratories, etc. These buildings require ventilation to provide fresh air for the occupants and to remove pollutants and moisture from the building. The ventilation rate for special buildings depends on the type and function of the building, the number and activity of the occupants, the type and use of appliances and equipment, etc.
CIBSE Guide B2 2001 provides guidance on how to determine the ventilation rate for special buildings, based on the relevant regulations and recommendations from various sources, such as Building Regulations, British Standards, Health and Safety Executive, etc.
The recommended ventilation rates for some examples of special buildings are shown in Table 7:
Table 7: Recommended ventilation rates for some examples of special buildings Building type Ventilation rate --- --- Car park 6 air changes per hour or based on carbon monoxide concentration limit of 30 ppm (average) and 90 ppm (peak) Swimming pool Based on relative humidity limit of 60-65% and chlorine concentration limit of 0.5 mg/m Laboratory Based on fume cupboard extraction rate and pollutant concentration limit of 0.1 ppm (average) and 0.5 ppm (peak) for most substances Design and Installation of Ventilation Systems According to CIBSE Guide B2 2001
Ventilation systems are systems that provide fresh air to a building and remove stale air from a building. There are three main types of ventilation systems: natural ventilation, mechanical ventilation and hybrid ventilation. Natural ventilation uses natural forces such as wind and buoyancy to move air in and out of a building. Mechanical ventilation uses fans or other devices to move air in and out of a building. Hybrid ventilation uses a combination of natural and mechanical means to move air in and out of a building.
CIBSE Guide B2 2001 provides guidance on how to design and install ventilation systems according to the type and function of the building, the ventilation requirements, the outdoor air quality and climate conditions, the energy efficiency and environmental impact, etc.
Natural Ventilation
Natural ventilation is the use of natural forces such as wind and buoyancy to move air in and out of a building. Natural ventilation has many advantages, such as:
It is free and renewable.
It is simple and reliable.
It is comfortable and healthy.
It is energy efficient and environmentally friendly.
Natural ventilation can be achieved by using openings such as windows, doors, vents, louvres, etc., or by using devices such as chimneys, stacks, wind towers, solar chimneys, etc. Natural ventilation can be classified into two types: cross ventilation and stack ventilation. Cross ventilation is the movement of air across a building due to wind pressure differences. Stack ventilation is the movement of air through a building due to temperature or density differences.
CIBSE Guide B2 2001 provides guidance on how to design natural ventilation systems according to the following criteria and considerations:
The type and function of the building.
The location and orientation of the building.
The shape and size of the building.
of the rooms and spaces.
The type and size of the openings and devices.
The wind speed and direction.
The outdoor and indoor temperature and humidity.
The ventilation rate and air quality requirements.
The comfort and security of the occupants.
The energy efficiency and environmental impact of the system.
CIBSE Guide B2 2001 provides examples of natural ventilation systems and components, such as:
Windows: Windows are the most common and simplest way of providing natural ventilation. Windows can be opened or closed manually or automatically to control the airflow. Windows can be designed in different shapes, sizes and types, such as casement, sliding, pivoting, tilting, etc.
Vents: Vents are small openings that allow air to enter or exit a building. Vents can be fixed or adjustable, and can be located on walls, roofs, floors, etc. Vents can be used to provide background ventilation or to supplement other ventilation methods.
Louvres: Louvres are slats or blades that can be opened or closed to control the airflow. Louvres can be fixed or adjustable, and can be located on walls, roofs, windows, etc. Louvres can be used to provide background ventilation or to enhance cross ventilation or stack ventilation.
Chimneys: Chimneys are vertical shafts that allow hot air to rise and escape from a building. Chimneys can be used to create stack ventilation by creating a pressure difference between the inside and outside of the building. Chimneys can be combined with vents or louvres to control the airflow.
Stacks: Stacks are similar to chimneys, but they are designed to enhance stack ventilation by increasing the height or diameter of the shaft. Stacks can be used to create stack ventilation in buildings that have low ceilings or flat roofs. Stacks can be combined with vents or louvres to control the airflow.
Wind towers: Wind towers are tall structures that capture wind from different directions and direct it into a building. Wind towers can be used to provide cross ventilation or stack ventilation in buildings that have low wind speeds or complex shapes. Wind towers can be combined with vents or louvres to control the airflow.
Solar chimneys: Solar chimneys are chimneys that use solar energy to heat up the air inside the shaft. Solar chimneys can be used to create stack ventilation by creating a temperature difference between the inside and outside of the building. Solar chimneys can be combined with vents or louvres to control the airflow.
Mechanical Ventilation
Mechanical ventilation is the use of fans or other devices to move air in and out of a building. Mechanical ventilation has many advantages, such as:
It is controllable and adjustable.
It is consistent and reliable.
It is flexible and adaptable.
It is suitable for any type of building.
Mechanical ventilation can be achieved by using devices such as fans, blowers, pumps, compressors, etc., or by using systems such as ducts, pipes, filters, heat exchangers, humidifiers, dehumidifiers, etc. Mechanical ventilation can be classified into two types: supply ventilation and extract ventilation. Supply ventilation is the movement of fresh air into a building. Extract ventilation is the movement of stale air out of a building.
CIBSE Guide B2 2001 provides guidance on how to design mechanical ventilation systems according to the following criteria and considerations:
The type and function of the building.
The layout and arrangement of the rooms and spaces.
The type and size of the devices and systems.
The outdoor and indoor air quality and climate conditions.
The ventilation rate and air quality requirements.
The comfort and noise level of the occupants.
The energy efficiency and environmental impact of the system.
CIBSE Guide B2 2001 provides examples of mechanical ventilation systems and components, such as:
Fans: Fans are devices that use electric motors to rotate blades or impellers that create airflow. Fans can be used to provide supply ventilation or extract ventilation in buildings. Fans can be designed in different shapes, sizes and types, such as axial, centrifugal, mixed-flow, etc.
Dampers: Dampers are devices that can be opened or closed to control the airflow. Dampers can be used to regulate the pressure, volume or direction of the airflow in ventilation systems. Dampers can be designed in different shapes, sizes and types, such as butterfly, louvered, iris, etc.
Filters: Filters are devices that remove dust, pollen, smoke, odours or other contaminants from the airflow. Filters can be used to improve the air quality in ventilation systems. Filters can be designed in different shapes, sizes and types, such as fibrous, pleated, electrostatic, etc.
Heat exchangers: Heat exchangers are devices that transfer heat between two or more fluids without mixing them. Heat exchangers can be used to recover heat from the exhaust air and preheat the supply air in ventilation systems. Heat exchangers can be designed in different shapes, sizes and types, such as plate, shell-and-tube, rotary, etc.
Humidifiers: Humidifiers are devices that add moisture to the airflow. Humidifiers can be used to increase the relative humidity in ventilation systems. Humidifiers can be designed in different shapes, sizes and types, such as steam, spray, evaporative, etc.
Dehumidifiers: Dehumidifiers are devices that remove moisture from the airflow. Dehumidifiers can be used to decrease the relative humidity in ventilation systems. Dehumi