Energy Value-Stream Mapping a Method to Visualize Waste of Time and Energy

Abstract

In the industry, the Value-Stream Mapping (VSM) method has been successfully used for years to reduce inventory and lead times. With this method, process steps in a value-stream can easily be divided into value-adding and non value-adding ones. However, the VSM does not provide any information about the energy consumption and, as a consequence; it does not give any hint at how much of the energy used actually serves value-adding purposes. This paper describes how the VSM can be extended to an Energy Value-Stream Mapping (EVSM) method which allows dividing the energy input of the production process in value-adding and non value-adding.

Efficiency Enhancement of Sea Waves Energy Converter via Lean Principles Using an Effective Mechanical Mechanism

“…The first one is mapping of the current state of the system, while the second one is the modified state in which the non-value added activities are minimized or eliminated, which is known as the future state. Several researchers proposed implementing the VSM for managing energy conception and this has been nominated as energy VSM [38][39][40]. In this research, the energy VSM tool will be extended to be applied to energy generation and the process cards included in the value stream map will only include the energy losses in each stage.…”