Change Mix is a fundamental design principle in air handling and ventilation systems that refers to the strategic process of combining and modifying different air streams to achieve optimal indoor environmental conditions. This sophisticated approach encompasses the careful manipulation of various air parameters including temperature, humidity, velocity, and composition to create comfortable and healthy indoor spaces. The concept emerged from the increasing need for efficient climate control in built environments, particularly as architectural designs became more complex and energy efficiency gained prominence. In practical applications, Change Mix involves the calculated introduction of fresh outdoor air with recirculated indoor air, utilizing specialized equipment and control systems to maintain desired atmospheric conditions. The process requires precise engineering calculations to determine the appropriate ratios of mixed air streams, taking into account factors such as occupancy levels, building usage patterns, and external environmental conditions. The implementation of Change Mix principles has evolved significantly with technological advancements, incorporating smart sensors, automated control systems, and energy recovery mechanisms. This evolution has been particularly notable in sustainable building design, where Change Mix strategies play a crucial role in reducing energy consumption while maintaining optimal indoor air quality. The concept has gained recognition in various design competitions, including the A' Design Award's building materials, construction elements, structures and systems design category, where innovative applications of air mixing technologies are evaluated for their contribution to architectural excellence and environmental sustainability.
air ventilation, indoor climate control, air quality management, sustainable building systems, environmental engineering
CITATION : "Lucas Reed. 'Change Mix.' Design+Encyclopedia. https://design-encyclopedia.com/?E=476510 (Accessed on March 26, 2025)"
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