Energy Audit
CONSULTANCY TRAINING EXAMPLES OF OUR WORK
"Dynamic models can be used to accurately estimate the energy savings."
Energy Audit
We can help companies faced with increasing energy bills determine the most efficient way of operating plant. This can involve redesign of control, new equipment (e.g. switching from fixed speed pumps to variable speed pumps) and changes in operation. Dynamic models can be used to accurately estimate the energy savings, which is important to help justify any capital expenditure.
Calculations provided by vendors of equipment or energy saving bodies often do not contain the detail necessary to produce an accurate assessment. Our rigorous modelling approach provides confidence that the changes will really deliver the benefits and make energy saving projects a success.
ISC is not affiliated with any equipment supplier. Our studies are based on forecasting attainable energy savings rather than driving equipment sales.
PumpSim - VSD Energy Efficiency Tool
The Water Industry has enormous potential for energy savings by replacing "on-off" pump drive controls with VSD technology. Unfortunately, it is difficult to determine in advance whether a VSD investment will deliver the required return on investment.
PumpSim has been developed by ISC to facilitate the associated decision-making process. It is a (PC-based)
MATLAB/Simulink add-on that gives clients an accurate
forecast of energy savings. Developed with water industry professionals, it
removes onerous mathematics from the user interface while enabling accurate
representation of pumping station behaviour through application-specific parameter
entry. Armed with the predicted energy savings, the client is better placed to
decide whether a VSD investment is justified.
Modelling Pumping Stations for Energy Saving Assessment
EXAMPLES OF OUR WORK
Water Pumping Energy Savings
Use of dynamic models to accurately estimate potential energy savings through changes to plant (e.g. variable speed drives) and operating regimes (e.g. pump scheduling, level setpoints).
Aeration of Waste Water
Coupling of models of waste water treatment plant (WWTP) and compressors to determine possible energy savings through changes to control.
Paper Mill VSD Energy Audit
An audit on the use of VSDs to replace throttled valves was undertaken for all large pump/motors at a paper mill. This resulted in the development of template calculations for application across the various mills operated by the client company.