34Engineering baseline emissions model requirements

34  Engineering baseline emissions model requirements

 (1) A baseline emissions model for an implementation that is an engineering baseline emissions model must be developed using engineering modelling to relate relevant variables to the baseline emissions for the implementation.

 (2) An engineering baseline emissions model must be based on the application of mathematical approaches to solving problems based on physics, chemistry and other sciences, where:

 (a) the modelling approach must be explainable in terms of the underlying scientific principles; and

 (b) the modelling approach must be based on actual site data and other verifiable scientific parameters; and

 (c) the modelling approach can be subjected to sensitivity analysis with different parameters and assumptions.

Note:  Models may consist of multiple equations, calculated in an appropriate sequence, simultaneously, or by iteration using a scientifically valid method. Commercially available modelling packages may be employed provided they enable the use of specific site and equipment data, and provided they allow different assumptions and parameters to be used. Engineering baseline emissions modelling may combine several engineering disciplines or theories.

 (3) An engineering baseline emissions model must make use of and account for specific data relating to, where applicable:

 (a) the characteristics of the specific equipment operating at the site; and

 (b) energy balances and material balances; and

 (c) the load profiles of the equipment at the site, such as operating times, operating loads and operating parameters, variation in performance with load; and

 (d) equipment set points or control system settings; and

 (e) energy consumption associated with processing and characteristics of materials, including:

 (i) energy consumption associated with heating and cooling of materials, and heat transfer; and

 (ii) chemical reactions or phase changes; and

 (iii) materials handling; and

 (f) relevant ambient or external conditions materially affecting energy consumption and emissions, such as:

 (i) ambient temperatures and humidity; and

 (ii) cooling water temperatures; and

 (g) any changes in the boundary for the implementation; and

 (h) industrial process emissions.