building-tuning
Building tuning has long been recognised as a critical method for improving the performance of existing buildings. However estimating the potential benefits of HVAC control adjustments can be difficult if you don’t have the right building simulation technology.

A paper written by Dr Paul Bannister and Hongsen Zhang of Energy Action Pty Ltd (incorporating Energy Australia Pty Ltd), was recently published in Ecolibrium, the official journal of AIRAH. The paper named ‘What simulation can tell us about building tuning’ investigates how by using the IESVE, it is possible to test a number of common tuning strategies to determine their effectiveness in achieving energy savings.

Using an IES Simulation Model, the impacts of a number of common control algorithm adjustments were assessed, including dead-band adjustments for VAV terminals, fan control and supply-air temperature control, economy cycle and minimum outside air control. Results are repeated for Sydney, Melbourne, Brisbane, Canberra and Darwin to show the way energy impacts change with climate.

The Base case is a typical Australian commercial building with a conventional well-designed VAV HVAC system. The VAV configuration represents the most common building servicing type for medium to large buildings in Australia.

Combined scenarios with common failures or improvements are used to show that the difference between best practice and poor control can range as high as 90 percent, demonstrating the fundamental importance of control. Sensitivity to control is considerably greater in milder climates.

Click here to read the full paper.

In this week’s blog post we go behind the scenes at IES and meet one of our software developers to find out what it’s like working at IES and being part of the team that creates the Virtual Environment. So everybody meet Tom, our Anglo-French software engineer who has been working at IES since July […]

BIM Long and Prosper (Infographic)

Posted : January 27, 2015 by John G

Ever wondered how many Trekkie and BIM puns you could squeeze into one infographic? Well as our marketing team and BIM experts figured out this week… it’s quite a few. We came to that conclusion after creating our light hearted new infographic illustrating BIM and Interoperability with the VE, which you can see in full […]

IES TaP Hall of Fame 2014

Posted : January 8, 2015 by Glenn Miles

2014 was an exciting year for IES TaP! A number of IES TaP managed projects were shortlisted for the 2014 BREEAM Awards, with one of them coming out on top to win the BREEAM Industrial Award: the inspirational Bombay Sapphire Gin Distillery project managed by GWP. It was also the year we launched IES Tap […]

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Posted : December 11, 2014 by David McEwan

IES Director, David McEwan explains why you need to be… There are still many companies that don’t have sustainability or energy management as a priority on their agendas. With new government regulations such as ESOS (Energy Savings Opportunity Scheme) emerging, they may find themselves scrambling to keep up and get on board fast. ESOS has […]

This month we welcome guest blogger Janet Beckett to the IES blog to reveal 5 things she’s learned from a “BIM on a BUDGET” project. Janet is a Low Carbon Consultant and Director at Carbon Saver UK. Our BIM on Budget story began a year ago when a local chap phoned us to ask about […]

Over the years the green agenda within building design has become increasingly important. It’s only until very recently that designers, and other construction colleagues, have had the technology and know how to validate how our buildings are performing in real terms in comparison to what was expected from the design stage. The results prove interesting […]

Are you ready for Greenbuild 2014?

Posted : October 20, 2014 by John G

As we gear up for Greenbuild this week in the cultural hub that is New Orleans, we’re asking attendees ‘Are you ready?’   With stricter code compliance regulations such as Title 24 coming into place and voluntary rating systems  like LEED V4 and ASHRAE Standard 189 introducing more stringent performance based pre-requisites, it is becoming […]

Closing the Performance Gap

Posted : September 17, 2014 by Niall

There has been a growing awareness for some time that many ‘low energy buildings’ use more energy than the designers thought they would. As energy costs have risen, this awareness has started to spread to building owners, who hear much about low energy buildings and subscribe to programmes that rate the design of the building, […]

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