Books on comfort & air-conditioning include: "The Invention of Comfort, Sensibilities & Design in Early Modern Britain & Early America" by John E. Crowley (2001) and "Air-Conditioning America, Engineers and the Controlled Environment" by Gail Cooper (1998). Michael C. Henry
As an agency representative that must balance directives for sustainability and energy efficiency within a historic district WITH a museum of collections, this conference was excellent! I am going to recommend the subject matter to the Department of Defense for their courses for Cultural Resource professionals and Facilities personnel and encourage colleagues to attend any future seminars such as these. Great job to all involved! Kristen Wenzel, Cultural Resource Manager, Texas Military Forces
Permitting building temperature to drift seasonally prevents mold by eliminating temperature gradients that cross dew point. Mold blooms require dew point condensations. Seasonal temperature drift also diminishes energy consumption. Keep summer dew points low and winter dew points high. Design for efficiency at low loads and avoid design for extreme load.
Try to avoid subcool and reheat. Try to supply any reheat with recovered heat from other sources. Minimize introduction of unfiltered and untempered outside air. Next to lighting, most energy waste comes from fan driven air transport through ducting. Tight ducting minimizes health hazards.
Lack of convincing standards compromise and invalidate preservation requirements in context with engineering and construction standards. The paradigm of an optimal target is not enough when sophisticated drift and response control, cycling models linked to outdoor response at less than capacity system operation are the norm.
Enhanced third party building commissioning and LEED certification are worth their cost. 60% of building cost over a 40 year life cycle is energy and maintenance and these are much more flexible than general administrative and building costs.
Building structure considerations
Energy waste is associated with excess ceiling height and un-compacted shelving. Exterior protection from heat gain starts with a light roof color and efficient north-south building orientation. Humidity surges are diminished by larger roof overhang which also suppresses exterior molds and wall weathering.
Collections considerations
If imposed environmental standards with narrow targets were actually necessary for collections preservation no historical collections would have survived. Study “proofed” collections with evidences of past storage to access risks. However the “canary” items should not intimidate performance design. Afford complete collection cleaning of dust to suppress mold bloom hazard and prevent duct contamination. Duct contamination is very difficult to correct and is especially prevalent in construction phases and early building operation.
Energy savings can be in inverse relation to collection longevity. Collection care cannot be delegated to technology
5 comments:
Mind bending conference! Thanks Karen!
My comments at http://www.futureofthebook.com/stories/storyReader$957
Gary
Books on comfort & air-conditioning include: "The Invention of Comfort, Sensibilities & Design in Early Modern Britain & Early America" by John E. Crowley (2001) and "Air-Conditioning America, Engineers and the Controlled Environment" by Gail Cooper (1998). Michael C. Henry
As an agency representative that must balance directives for sustainability and energy efficiency within a historic district WITH a museum of collections, this conference was excellent! I am going to recommend the subject matter to the Department of Defense for their courses for Cultural Resource professionals and Facilities personnel and encourage colleagues to attend any future seminars such as these. Great job to all involved! Kristen Wenzel, Cultural Resource Manager, Texas Military Forces
Building systems considerations
Permitting building temperature to drift seasonally prevents mold by eliminating temperature gradients that cross dew point. Mold blooms require dew point condensations. Seasonal temperature drift also diminishes energy consumption. Keep summer dew points low and winter dew points high. Design for efficiency at low loads and avoid design for extreme load.
Try to avoid subcool and reheat. Try to supply any reheat with recovered heat from other sources. Minimize introduction of unfiltered and untempered outside air. Next to lighting, most energy waste comes from fan driven air transport through ducting. Tight ducting minimizes health hazards.
Lack of convincing standards compromise and invalidate preservation requirements in context with engineering and construction standards. The paradigm of an optimal target is not enough when sophisticated drift and response control, cycling models linked to outdoor response at less than capacity system operation are the norm.
Enhanced third party building commissioning and LEED certification are worth their cost. 60% of building cost over a 40 year life cycle is energy and maintenance and these are much more flexible than general administrative and building costs.
Building structure considerations
Energy waste is associated with excess ceiling height and un-compacted shelving. Exterior protection from heat gain starts with a light roof color and efficient north-south building orientation. Humidity surges are diminished by larger roof overhang which also suppresses exterior molds and wall weathering.
Collections considerations
If imposed environmental standards with narrow targets were actually necessary for collections preservation no historical collections would have survived. Study “proofed” collections with evidences of past storage to access risks. However the “canary” items should not intimidate performance design. Afford complete collection cleaning of dust to suppress mold bloom hazard and prevent duct contamination. Duct contamination is very difficult to correct and is especially prevalent in construction phases and early building operation.
Energy savings can be in inverse relation to collection longevity. Collection care cannot be delegated to technology
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