Control is more complicated than switching on & off.
The devil is in the gray area.
- = Once you don’t play by the rule, the water will flood you.
System perspective>Control To provide controllability over the system components and monitor its performance instantly. Advanced control system may provide real-time operation status and best saving strategy: Building Energy Mgmt System(BEMS)
System perspective> Layout & Piping Piping is more than plumbing, but to reduce the resistance from fluid dynamics perspective, to find an optimized path, and to apply energy saving strategies (low flow, high temp difference, secondary flow method, etc)
Unit perspective > Heat Recovery (Heat Pump) What really matter is not the CO2, but the heat. It is projected and pretended unseen. With heat recovery units, we can turn the waste heat into excellent heat source.
System as an entity Heart Vein Brain Soul Sport Liver Organ Health
Overview Baseline (assumption) Saving/ ROI Potential (estimation) How to define the saving? Baseline
Scientists set the “average ocean height” as the zero point of the attitude. Then, all the geographic phenomenon can be measured based on the same reference.
In term of energy, baseline is the general concept to describe the accumulated energy consumption of a group of energy consuming units (ECU, or boundary), while no significant impact to the ECU matrix.
The source of impacts: environment, production, operation, management, & the change of the matrix.
Find out the general status quo of energy consumption
Discover the potential opportunities
Define the likely boundary of energy project.
Types of energy audit
Preliminary auditing (walk through)
General auditing, to decide the energy structure
Investment auditing, considering ROI all together.
Auditing as part of the business ! ! 50001 50001 Done!
Measurement & Verification ECM: Energy Conservation Measure IPMVP M&V options OPTION A Retrofit Isolation: Key Parameter Measurement Engineering calculation of baseline and reporting period energy from,1. short-term or Continuous measurements of key operating parameter(s); and 2. estimated values. OPTION B Retrofit Isolation: All Parameter Measurement Short-term or continuous measurements of baseline and reporting-period energy, and/or engineering computations using measurements of proxies of energy use. Routine and non-routine adjustments as required. OPTION C Whole Facility Analysis of whole facility baseline and reporting period (utility) meter data. Routine adjustments as required, using techniques such as simple comparison or regression analysis. Non-routine adjustments as required. OPTION D Calibrated Simulation Energy use simulation, calibrated with hourly or monthly utility billing data. (Energy end use metering may be used to help refine input data.)