Advanced Fan Coil Unit with Integral Heat Pump Navy SBIR FY2011.2 Sol No.: Navy SBIR FY2011.2 Topic No.: N112-164 Topic Title: Advanced Fan Coil Unit with Integral Heat Pump Proposal No.: N112-164-1229 Firm: Mainstream Engineering Corporation 200 Yellow Place Pines Industrial Center Rockledge, Florida 32955 Contact: Gregory Cole Phone: (321) 631-3550 Web Site: www.mainstream-engr.com Abstract: This proposal addresses the single largest non-propulsion consumer of Navy shipboard power. The heating, ventilation, and air conditioning system of a combatant ship dissipates over 25% of the ships waste heat. However, a growing percentage (up to 87%) of the waste heat is due to equipment loads that are currently cooled with 80�F air (produced by a chilled water supply at 40-45�F). Efficiency can be significantly increased by introducing an intermediate sink water system at 68�F to directly cool the equipment loads and adding active refrigeration to the fan coil units to condition the air for non-equipment loads. Mainstream proposes developing a family of advanced fan coil units with integrated heat pumps to provide 55�F air in cooling mode and 110�F air in heating mode with coefficients of performance greater than 6.5 and 4.5, respectively. In Phase I, Mainstream will develop the family of advanced fan coil units with the latest noise reduction and reliability improvement technologies that are suited for the shipboard environment. In Phase II, Mainstream will build several units in the family to demonstrate scalability of technologies. Benefits: Implementing the intermediate sink water system and other 21st Century HVAC technologies on Navy ships has the potential to reduce thermal power requirements by 50% and save $937,000 per ship per year. Mainstream's Phase I effort will validate the business case for implementing the intermediate water temperature design philosophy and further developing the family of advanced fan coil units. Return