![]() ![]() ![]() All rooftop units utilize heat recovery to pretreat the outside air, either by energy wheel or heat pipe. The multipurpose, fitness, child minding, offices, and the rest of the building is served by variable volume rooftop units with series fan powered terminal units. The gym and natatorium are served by dedicated single zone rooftop units. ![]() In addition to building heat, the hot water is also used to heat the pool and preheat the domestic water. There is also an air-cooled chiller and piping connections to the pool gas fired boiler for secondary cooling and heating sources. When there is an excess of either heating or cooling, the modular reversible chillers are also connected to an energy source/sink consisting of 160 geothermal wells that are each 300 feet in depth. For example, when there is a need for both cooling and heating, the reversible chillers extract the heat from the cooling loop and reject it into the heating loop. ![]() Instead of rejecting heat to the atmosphere for cooling or using natural gas for heating, there are four modular reversible chillers (totaling 200 cooling tons) capable of simultaneously generating chilled water for cooling and hot water for heating. The HVAC central plant at Bow Creek Recreation Center is unique compared to traditional cooling and heating systems. This is one of the first projects to use this approach for multiple outcomes for the City of Virginia Beach.The Bow Creek Recreation Center is a 67,743 square foot, $28 million, state-of-the-art facility complete with an indoor swimming pool, cardio/weight training area, group fitness studio, indoor double gym, a youth game room, classroom space for early childhood programs and meeting rooms. This project serves as a prime example of how public development projects can integrate into design retrofits of stormwater management infrastructure to assist the City in their Chesapeake Bay TMDL compliance with the Environmental Protection Agency (EPA). The resulting constructed wetland provided 40 lbs./year, providing the City with 35 lbs./year of additional removal that could be used to offset other City projects or meet the City’s total maximum daily load (TMDL) goals. The redevelopment of the Recreation Center required 5 lbs./year of phosphorus removal to meet City and State requirements. The team was able to daylight this system and the result was a 1.2-acre constructed wetland with deep and shallow pools, multiple cells, several wetland benches, a fountain, and two bridges that now serves as an amenity to the site and the community. Prior to development, a series of small ditches and storm pipes carrying 114 acres of drainage traversed the site adjacent to and underneath parking lots. The Kimley-Horn team was required to take a unique approach to stormwater management-involving the design and construction of a relocated stream and constructed wetlands that treat the onsite stormwater and a substantial area of offsite stormwater that flows through the site. Kimley-Horn provided engineering services for the replacement and modernization of the center as well as the replacement of golf course facilities that support the Bow Creek Golf Course. Spanning 12 acres, the state-of-the-art, LEED-certified Bow Creek Recreation Center offers Virginia Beach residents 70,000 square feet of fitness, recreation, and community activities. ![]()
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