Sankey charts are a type of flowchart that are used to visualize the flow of energy or material between different units or processes. They are named after Rudolph Sankey, an English engineer who invented the chart in the 19th century.
Sankey charts are useful for identifying bottlenecks in a system, determining energy efficiency, and evaluating changes to a system. They are also used to analyze the allocation of resources or the transfer of material between different parts of a manufacturing process.
Creating a Sankey chart is relatively easy using spreadsheet software such as Excel or Google Sheets. To create a Sankey chart, follow these steps:
- Determine the direction and number of streams.
- Identify the nodes or units that represent the inputs and outputs of the streams.
- Draw arrows between the nodes to represent the direction and magnitude of the flow.
- Customize the chart as needed, such as adding labels or adjusting the appearance of the chart.
Sankey charts can also be used to analyze and improve the efficiency of a system. For example, by analyzing a Sankey chart of a manufacturing process, one may be able to identify areas where materials or energy are wasted and make improvements to reduce waste and increase efficiency.
Overall, Sankey charts are a useful tool for visualizing and analyzing the flow of energy or material in a system. They provide a clear and intuitive way to understand the interactions between different units or processes and can be used to identify opportunities for improvement or to evaluate the effectiveness of a system.
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