![\"\"](\"http:\/\/www.uhs-jo.com\/uploads\/images\/File\/mep.jpg\")
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HVAC accounts for 39% of a bldgs energy costs<\/p>\n
High performance HVAC can result in 10 to 40% savings (whole building approach, considering envelope as well)<\/p>\n
Extended Comfort Zone Concept considers both temperature and humidity- hotter feeling when humid, colder feeling when dry.<\/p>\n
–\u00a0energy modeling needed to determine best methods for winter and summer weather to keep the temperature comfortable with maximum energy savings<\/p>\n
Examples: window shades, coating on glass, trees, using \u00a0a desiccant humidifier to reduce humidity – all contribute to cooling in the summer; adding humidity in the winter can increase the felt temperature 2-4%<\/p>\n
At 50% humidity, we are comfortable, with increased humidity, we’ll feel warmer even at a lower temperature therefore it’s important to maintain as close to 50% humidity throughout the seasons<\/p>\n
“Human-centric” heating and cooling concerns<\/p>\n
Net Zero Building<\/span><\/p>\n Ideal to get to a net-zero energy cost with this building<\/p>\n Various ideas to achieve this:<\/p>\n – SRECS credits and PJM (PA, Jersey & Maryland Connect) grid to pay utility bills<\/p>\n – “drinkable air” dehumidifier to pull water out of the air to drink – have here as a demonstration and to sell, while cooling the building<\/p>\n – VAV boxes<\/p>\n Although we want to showcase new technologies for heating and cooling, we want to balance this desire with utilizing proven technologies so we don’t end up with cutting edge technology that doesn’t live up to it’s promises<\/p>\n Air Tightness of Building<\/span><\/p>\n <\/span>– design a building with a tight envelope building, and then look at optimum ventilation systems<\/p>\n – consider all passive opportunities for HVAC such as solar chimney component in greenhouses,<\/p>\n – combine high tech designs with low technologies that have proven track records and have all that we envision in the building – arts, restaurant, education, new technology – best of old (solar thermal), best of new (ability to control, monitor and integrate systems)<\/p>\n FADRS\u2122<\/strong> (smart grid technology- human centric system) “building automation system on steroids,” uses artificial intelligence, so each year the savings increases with the AI technology – saves 20-40% in energy costs<\/p>\n Design decisions are also regional- must keep in mind regional concerns<\/p>\n What does this space lend itself to?<\/p>\n – daylighting- major passive solar opportunity<\/p>\n Nano-ceramic technology (a film) on windows will prevent 70% of the heat coming into the building and can generate electricity. \u00a0(Huper Optiks)<\/p>\n – greenhouses<\/p>\n – stone wall dump heat into that space from solar chimney or create a shaft to have heat from front of building to be sucked into back of building<\/p>\n (Hallowell, a company has built an air-source heat pump efficient below zero degrees) – heat pump concept (exchange heat energy) geothermal efficiently does this, air-source heat pumps only efficient till 32 degrees external temperature, auxiliary needed<\/p>\n Both sides of sustainability addressed by merging old and new – high tech with low tech<\/p>\n Overcome categories (such as above – only high tech)<\/p>\n – Display leading edge technology even if it doesn’t completely work – all a learning process, invite public to examine and offer input<\/p>\n – Transparency- we want to have the building to be an educational model with panels describing what is occurring with the building in terms of heating and cooling and what the systems are doing<\/p>\n Electrical<\/span><\/p>\n Existing service is a delta system (Wild Leg) 3 phase, one phase is 180 volts (would fry outtlets- used for 220 volt) was here for 3 phase equipment that was in the building. \u00a0There may be need for 3 phase for equipment for the kitchens. \u00a0Can be downgraded to 208 volts through electric company (JCP&L needs to switch their transformer- this would give the building more flexibility for more applications), which is more standard for a typical business building. \u00a0No equipment currently in building using 3 phase and energy bill is extremely high- $1,000\/mo).<\/p>\n Various electrical needs can be accommodated in various parts of the building, such as the kitchens and the discovery & innovation center.<\/p>\n Load calculations will need to be done to determine amperage needed for the building.<\/p>\n LEDs or Inductive lighting good for outside the building. \u00a0Both have a long life capacity. \u00a0Inductive (gas bulbs) has a higher wattage and is more expensive than LED. \u00a0211 Mt Airy Road has LED lighting the outside of the building at night. \u00a0In front of Parking Authority building there are examples of both Inductive and LED lights. \u00a0CFLs don’t last as long and can’t be used outside in extreme cold.<\/p>\n Solar Discussion<\/span><\/p>\n Solar Trackers will increase cost efficiency by 40%. \u00a0Trackers themselves are 30% more efficient than stationary panels.<\/p>\n BIPV- Building Integrated Photovoltaics – PV’s are built into the uses of the building.<\/p>\n Examples are: Cogeneration<\/span><\/p>\n Cogeneration- creating heating and electricity from a generator (usually powered by natural gas)<\/p>\n Trigeneration -creating heating, cooling & electricity from a generator<\/p>\n Cogen or trigen systems only produces electricity only according to what bldg needs. \u00a0Need 80-90% run time for system to be viable. \u00a0If appropriate for EcoCenter bldg, could save 50% in energy costs. \u00a0Produces hot water for heating, kitchens, bathroom sinks & can also go through a brine solution to be used in cooling systems.<\/p>\n","protected":false},"excerpt":{"rendered":" Existing Systems Analysis by an MEP engineer would be the first step in evaluating what is currently in the building and what might be worth keeping MEP Discussion (Mechanical, Electrical & Plumbing) Implications of\u00a0HVAC HVAC accounts for 39% of a bldgs energy costs High performance HVAC can result in 10 to 40% savings (whole building… read more 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\nPanels can provide shading to the greenhouses during the strongest sun and store energy at the same time. \u00a0Trellises over public spaces on roof can hold solar trackers. \u00a0WattLots provides PV integrated awnings and solar canopies over parking lots.<\/p>\n