{ "item_title" : "Micro-Draft Micro-Stratification in High-Bay Spaces", "item_author" : [" Charles Nehme "], "item_description" : "High-bay spaces - warehouses, distribution centers, aircraft hangars, gymnasiums, and data hall shells with clear heights of 24 ft (7.3 m) or more - behave thermally as tall, weakly mixed air columns. Two distinct but interacting phenomena govern the discomfort and energy waste reported in these spaces: bulk thermal stratification, a large-scale buoyancy-driven layering of the entire air volume, and micro-draft micro-stratification, a localized, small-scale layering that forms in the near-floor and near-envelope boundary regions even when the bulk air column appears reasonably mixed. Understanding both, and how they compound one another, is the basis for correct diagnosis.", "item_img_path" : "https://covers4.booksamillion.com/covers/bam/9/79/819/109/9798191093147_b.jpg", "price_data" : { "retail_price" : "49.99", "online_price" : "49.99", "our_price" : "49.99", "club_price" : "49.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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