Alo Mikola

Case-study analysis of concrete large-panel apartment building at pre- and post low-budget energy-renovation

AbstractThe paper presents a case study analysis of low-budget renovation of a typical concrete large-panel apartment building. Focus is on the measurements and analyses of energy consumption, indoor climate, CO2 concentration, air leakage rate, thermal transmittance of thermal bridges, and thermal transmittance of the building envelope before and after the renovation. Results indicate that the renovation project was generally successful, with delivered energy need decreasing by 40% and heating energy need decreasing by 50%. However, some key problems need to be solved to achieve full energy efficiency potential of the renovation works. Those critical problems are the performance (thermal comfort, heat recovery) of ventilation systems, thermal bridges of external wall/window jamb and economic viability. Currently, a major renovation is not economically viable, therefore financial assistance to the apartment owners’ associations is required to encourage them to undertake major renovations.

INVESTIGATING AIRFLOW PATTERNS NEAR SUPPLY AND EXHAUST VENTS OF ROOMBASED VENTILATION UNIT USING LASER DOPPLER ANEMOMETRY

The population growth in the urban centers has resulted in largeconcentrations of people, at places not apt and vulnerable to risks associatedto natural disasters. Against this background, it is essential promoting aculture of prevention of natural disasters, enhanced by the use of ICT inorder to provide solutions to emergency situations The goal: Develop aculture of prevention in the field of risk management for natural disastersmediated by technologies in ENB: Barbula I Naguanagua, Carabobo StateBolivarian Republic of Venezuela. The investigation methodology is actionresearchand the double life cycle is employed to address pedagogical issuesand incorporate them into the software development process for Web-basedlearning. The results are shown on instantiation of double life cycle on thesubject of risk management for children 5th and 6th grade as well asteachers, parents or guardians, and Carabobo Civil Protection personnel. Theapplication presented three versions: Offline installed for Canaimitas, onlineversion installed at a server in Multimedia Laboratory of the CaraboboUniversity and a mobile version. Users were trained in ICT and the virtualclassroom. Also they evaluated the products and gave us the feedback toconform the first version of the software. In conclusion, it is evident the needfor a preventive culture supported in the use of ICTs as an opportunity toraise community awareness, integrating human effort and technological andpedagogical innovation.