The closed systems approach links elements to conserve materials and resources in LEED. Learn how closed systems create functional relationships for sustainability.
Table of Contents
Question
Select the type of approach that promotes the conservation of Materials and Resources by linking elements in order to form relationships with their function
A. Open Flow
B. Closed Flow
C. Open Systems
D. Closed Systems
Answer
D. Closed Systems
Explanation
Closed systems are systems that promote the conservation of materials and resources by linking elements in order to form relationships with their function. Closed systems aim to minimize waste, energy loss, and environmental impact by reusing, recycling, or regenerating materials within the system boundaries.
Closed systems can be inspired by natural ecosystems, where waste from one process becomes food for another process. An example of a closed system is a building that collects rainwater for irrigation, uses solar panels for electricity, composts organic waste for fertilizer, and recycles greywater for flushing toilets.
A closed systems approach promotes the conservation of materials and resources by linking elements together in a way that forms functional relationships between the components. In a closed system, the output or waste from one element becomes the input or resource for another element. This creates a cyclical flow that minimizes waste and maximizes the reuse and recycling of materials within the system.
Some key aspects of a closed systems approach:
- Waste from one process is captured and repurposed as a resource for another process
- Energy and materials cycle continuously through the system with minimal losses
- Synergistic relationships are formed between elements to improve overall efficiency
- Mimics the cyclical flows found in natural ecosystems
In contrast, an open systems approach has more of a linear flow, with materials and resources entering the system and waste exiting the system. Open flow and closed flow refer more to the movement of people or things through a space.
By linking elements functionally in a closed loop, a closed systems approach minimizes the need for new raw material inputs and waste outputs, thus conserving materials and resources. This is an important sustainable design strategy covered in the LEED green building certification system.
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