29Aug 2017

DEVELOPING A COST-OPTIMAL RETROFIT CHP SYSTEM FOR MULTI-FAMILY BUILDINGS USING HISTORICAL DEMAND.

  • Department of Mechanical and Aerospace Engineering, university of Dayton, Dayton, OH, 45469.
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Combined heat and power (CHP) systems are increasingly used in conjunction with traditional grid power for industrial and residential applications. Because many multi-family residences in the US have significant energy savings potential, this study considers a CHP application for an all-electric120-unit multi-family residence in Columbus, Ohio. This building is data rich, with historical consumption of electricity and water available from unit-level meters. ACHP system is considered to meet partial loads for electricity and hot water in order to reduce overall energy cost, when considering a demand sensitive grid power cost pricing schedule. A mathematical model is developed for deploying the CHP and dispatching the generated electric power to the facility and thermal energy to a central hot water tank. This model enables optimal management of the power dispatching in order to reduce overall energy cost. The modelingresults indicate that a CHP with electrical output of 60 kweand a hot-water tank capable of storing 400 kwh of thermal energy will optimally reduce total annual energy costs for the multi-family residence. In this case, the total annual cost is reduced by 23% relative to using only conventional grid power for the building, from $114,850 to $88,336, and the CHP provides 65% of the total demand.Reduction in total carbon emissions for this best case is estimated to be 32%.


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[Saeed A. Alqaed and Kevin P. Hallinan. (2017); DEVELOPING A COST-OPTIMAL RETROFIT CHP SYSTEM FOR MULTI-FAMILY BUILDINGS USING HISTORICAL DEMAND. Int. J. of Adv. Res. 5 (Aug). 1786-1800] (ISSN 2320-5407). www.journalijar.com


Saeed Alqaed


DOI:


Article DOI: 10.21474/IJAR01/5246      
DOI URL: https://dx.doi.org/10.21474/IJAR01/5246