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Solar Thermal Hot Water System for SUNY-ESF’s Adirondack Ecological Center (AEC) To: Professor Alexander Ryan, Michael Kelleher, Nick Pasco From: Sammy Vant, Eric Ansanelli, Josh Hawley Re: ERE 351 Design Project Date: April 29, 2011 1. Goal of Design: The purpose of our design was three-fold. These goals are listed below.  Reduce heating costs associated with hot water in the summer and building maintenance in the winter at the AEC, while staying within a $20,000 budget  Help ESF get closer to being “carbon neutral” by 2015 through the use of a solar based heating system  Expand the knowledge of solar technology, specifically evacuated tube collectors, among the entire ERE 351 class 2. The Adirondack Ecological Center’s Current System The AEC is located in Newcomb, NY as a remote campus location owned by the SUNY College of Environmental Science and Forestry. Their dining facility is a building which contains both the kitchens and the student showers and is responsible for the majority of the hot water used throughout the property. The facility hosts an estimated 30 people at a time, mainly during summer months. The building uses an electric boiler with two storage tanks. The larger tank is 120 gallons and goes toward laundry and shower needs. The second ta nk is only 20 gallons and supplies the kitchen. The exact hot water usage is not known because the electric used for the boiler is combined with the rest of the electric usage in the building, so assumption s had to be made. In order to design a more cost eff ective and environmentally sound water heating system, we assumed a 5 gallon demand for hot water storage per person based on research ("Hot Water Consumption per Occupant."). 3. The Proposed Solar Thermal System As explained, the most important part of our solar hot water (SHW) design was ensuring that it was sized appropriately for the demand. At the 5 gallons of storage per person and assumed 30 person occupancy, a minimum storage of 150 gallons was needed. We choose to round up to 160 gallons and use two 80 gallon tanks in series to provide hotter water more efficiently. Based on the 160 gallon storage, we used a general rule of one evacuated tube for two gallons of storage, or 80 tubes. The system can be

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