How long do electric motors last?
(Nassani et al., ) The lifetime applied in the LCA corresponds to the minimum lifetime established in standards. However, electric motors are usually used in factories far beyond their expected lifetime, as recently shown in a large USA DoE Study (Rao et al., ).
Do electric motors have a life cycle assessment?
i. Early publications on the Life Cycle Assessment (LCA) of electric motors focused solely on the economic costs associated with electrical energy consumption during the operational phase (use phase only) and did not consider the complete life cycle (from production to disposal or recycling) of electric motors involving environmental impacts.
What are the characteristics of energy storage system (ESS)?
Use of auxiliary source of storage such as UC, flywheel, fuelcell, and hybrid. The desirable characteristics of an energy storage system (ESS) to fulfill the energy requirement in electric vehicles (EVs) are high specific energy, significant storage capacity, longer life cycles, high operating efficiency, and low cost.
How does motor efficiency affect the life cycle of a motor?
Thus, the smaller the motor efficiency, the greater the impact during the usage phase, consequently, in its entire life cycle. Analyses that include permanent magnet-based motors show lower impacts during their use phase due to their higher efficiency level.
Does the use phase affect the life cycle of electric motors?
The results indicated the dominance of the use phase in the life cycle of electric motors. Thus, a slight increase in efficiency pays off environmentally in the first month of operation in the load-time profiles applied in the research.
Do efficient motors reduce environmental impacts over their life cycle?
The use phase has the most significant impact, accounting for over 90% of life cycle impacts. Efficient motors generally have reduced environmental effects over their lifespan, even if their production and disposal impacts are higher. Notably, all analyzed LCA publications are European, so findings might vary in other regions.
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