Energy efficiency (EE) has a central role in tackling climate change. It is often referred to as the “First Fuel” as it is the fuel you do not have to use. EE initiatives are often the most cost-effective way to reduce greenhouse gas emissions. They allow energy delivery systems to be smaller and cheaper. The savings in infrastructure costs pay for the EE works, let alone the actual energy savings value.
This article seeks to:
Better inform the discussion about the efficiency of a Compressed Air System(CAS)
Show how calculating system efficiency using an “electrical and thermal energy balance method” is flawed.
Provide a more informed description of what affects the conversion efficiency of a CAS
This article should guide those calculating the economics of compressed air energy efficiency projects away from using potentially flawed “rules of thumb” to seeking out and collecting well-informed data.
The guide is for operators of compressed air systems, maintenance staff, production managers and other technical staff who wish to optimise the efficiency of their compressed air systems without spending significant capital. This guide sets out low capital cost, simple-to-do actions that can help you to:
free up system capacity to better meet your compressed air demands
save money by avoiding or delaying buying a new compressor
complement your efforts to ensure system reliability
reduce your electricity bills
This compressed air guide, located on the website of the NSW Department of Planning, Industry and Environment (formerly Office of Environment and Heritage), was published in 2017.