Análise da relação custo-benefício de projeto de eficiência energética no setor residencial

Abstract

In electrical efficiency projects , which involves the exchange of conventional equipment with efficient , there is the difficulty of estimating the consumption of active power and active power demand before and after project implementation . However , EnergyPlus software has proven an effective tool for simulations energy term , allowing portray the systems evaluated with very close to the real system operation. Given the significant increase and the consequent need to control the power consumption by the residential sector , this paper proposes to analyze the technical and economic feasibility of the project on energy efficiency in consumer units "low income " , which performs the exchange of old and inefficient refrigerators for with new internal storage volume of 300 liters and Procel class A in energy consumption , replacing incandescent bulbs with compact fluorescent lamps and 20W energy saving of a residential building with improved envelope their refrigerators . Thus , one type building was modeled in EnergyPlus , and performed the simulation with the cooler and lamps before and after the replacement process for estimating consumption of active power and active power demand . Based on this estimated reduction of consumption and demand, the cost - benefit ratio of the project by computer simulation and by the conventional method stipulated by the Energy Efficiency Manual Aneel was calculated . The level of energy efficiency of a popular house type was determined according to the Prescriptive Method Quality Technical Regulation for the Level of Energy Efficiency of Residential Buildings (RTQ-R) . A new type of energy efficiency project aimed at improving the envelope of residences were also proposed for assessing the impact on reducing consumption and demand of active power and its cost-effectiveness .