Developing Quality Indicators for Large Solar Heating Systems and District Heating
Abstract
The Brazilian energetic matrix is composed by 50% of renewable energy as well as an electrical matrix that reaches levels greater than 80%. However, with national economic growth, it is necessary to expand the site of generation and distribution, promote the rational use of energy and especially to encourage and introduce a greater share of renewable sources in national energy matrix, for example the intensive program for replacement of electric showers by solar thermal systems that has been adopted by the government. This work was developed over the premise of the need to enhance quality and proper functioning of the solar heating systems. By laboratory tests, computer simulations and data analysis on the quality evaluation of the solar thermal installations in residential buildings in the city of Belo Horizonte (ECV Eletrobras Project 184/2006) was possible to establish the indicators of quality for large solar heating systems and elaborate a methodology for certification of such systems. This work was developed under the project ANEEL/CEMIG – R&D 183 – District Heating, which intends to apply the indicators and methodologies developed on the district solar heating system, which will be installed to attend about 50 low-income families, in an unprecedented action in the country.