Hotshot Drain Water Heat Recovery System

摘要: A significant portion of a typical household’s energy bill comes from hot water heating. Among the processes within home that use water, shower consumes majority this energy. The Hotshot aims to reduce shower’s demand by capturing heat outgoing grey and transferring it showers incoming cold stream, thus reducing on heater. This will both cost using ultimately family’s carbon footprint. system uses gravity fed plate exchanger (PHE) is typically installed in basements. Drain run through then diverted back home’s primary drain. be designed tested with an emphasis maintenance, efficiency, installation. product meets these design requirements documentation attractive large number consumers, turn, create successful business. EXECUTIVE SUMMARY average American family spends nearly $300 month bills. This, combined trend towards footprint, have people rethinking many their daily habits effort save money. Within home, accounts for (25%) total expenditures greatest source heating cost. has led Mr. Jack Griffith, founder Infrared-Energy Analysis, invent Hotshot. Griffith his company perform residential audits believe help customers further developed prototype whose component AIC LB31-30 flat (PHE). PHE transfers amount energy, required shower. requested we address issues surrounding including clogging filter quantifying benefits system. Since are approaching entrepreneurial stand point, had determine if provided sound base business investment. included savings possible determining what kind families would subsequently benefit five year period. We determined depend factors including: taken per day, duration those showers, type heater used, temperature. Monte Carlo simulation was preformed as way combine all variables produce distribution curve showing households across country. Our results showed mean natural gas approximately $71 year, while electric heaters $160. Through decomposing Hotshot’s functions, find must tasks beyond obvious transfer work can divided into four parts: filter, attachment bypass exchanger. set engineering specifications each sub function. Physical characteristics been chosen based our parameter analysis; however, certain parameters for. To validate performed several tests decided test LB31-40, which found maximized area respect one level larger than current prototype. varied temperature flow rate at ports effectiveness. Effectiveness shown correlate well reference data 10% 80% depending showering conditions. Despite range, still effective households, specifically colder climates. were able calculator serve valuable marketing tool. also does not affect pressure head. recommend more testing conducted higher performing, restrictive PHE’s. specifications. no negative impact performance. therefore finest used prolong life. Life cycle should completed verity specified maintenance interval. Once complied addressed environmental sustainable technology offsets maintain. Based analysis feel potential product. Some remaining challenges include testing, marketing, mass production