News stories of the month New ISO standard on phased implementation of env
SO has just published a new standard in order to help organizations, and in particular small- and medium-sized enterprises (SMEs) use a phased approach to implement an environmental management system (EMS). Today, organizations increasingly take into account environmental management requirements in their activities. However, even if they clearly see the benefits they can derive, implementing an EMS is not always an easy task, especially for SMEs. The job will now be made easier by ISO 14005:2010, Environmental management systems – Guidelines for the phased implementation of an environmental management system,
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including the use of environmental performance evaluation.
The purpose of this standard is to provide guidance for organizations on the phased development, implementation, maintenance and improvement of an environmental management system in order to meet the requirements of ISO 14001, which provides the requirements for an EMS. ISO 14005 also includes advice on the integration and use of environmental performance evaluation techniques.
This International Standard is applicable to any organization, regardless of its level of development, its activities, or its location. A phased approach offers several
advantages: • Users can readily evaluate how the time and money put into an EMS provides a return
• They can see how environmental improvements help to reduce costs, improve their community relations, assist them in demonstrating compliance with legal and other requirements, and help them live up to customer expectations
• They can track the benefits of their EMS while they implement their system step by step, adding or expanding elements as they provide value to the organization
• They can focus on the issues that are critical for them, their
Energy Efficient Pumping Systems – A Design Guide
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he Guide is as a result of BSRIA’s research project carried out in collaboration with BRE and the industry partners including Danfoss, Frese, Belimo, SAV UK, Andrew Reid & Partners, Crane Fluid, Herz Valves and Grundfos.
It recognises that the potential for pump energy savings is substantial. Europump (a pan European association of pump manufacturers) estimate that systems could be 30 to 50% more energy efficient by careful consideration of components, design and installation. Indeed BSRIA’s research has shown that a potential energy saving of 82% is achievable between the worst operating constant flow systems and the best designed variable flow systems. Furthermore, in heating and cooling applications, a lack of regard for pump energy may lead to missed energy savings elsewhere.
4| SUSTAINABLE FM | MARCH 2011
For example, excess flows tend to lower system temperature differentials, thereby reducing the effectiveness of some low energy (or low carbon) heating and cooling sources.
Essentially this guide provides recommendations for building services designers on the design of energy efficient pumping systems. However it will be invaluable to a broader group including
manufacturers, contractors and end- users who will benefit from being able to design, select and manage more efficient systems.
The recommendations presented in this guide, based on extensive research supported by BRE and the industry, focus on: • Pump energy fundamentals • Pipe sizing • Pipe layout • System control issues • Commissioning issues In summary, findings show that a pumping system capable of realising
the maximum energy savings will have a number of different properties. Some of these include: • Having a variable flow system with a pump that varies its speed to match the operating load conditions
• A controlled pump speed so as to maintain pressure constant across the most remote DPCV controlled sub-branches
• Pipes sized as large as possible in order to minimise their resistances
More detailed information about our recommendations can be found within the guide.
This guide is now available to purchase at the pre-launch price of £40 to non-members and £20 to BSRIA members until 31st March 2011. Normal price will be £50 or £25 to BSRIA members. Tel: +44 (0)1344 465529 Email:
bookshop@bsria.co.uk www.bsria.co.uk/bookshop
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