The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON ENVIRONMENT AND DEVELOPMENT
Transactions ID Number: 52-168
Full Name: Teet-Andrus Koiv
Position: Professor
Age: ON
Sex: Male
Address: Ehitajate tee 5, Tallinn,19086
Country: ESTONIA
Tel: +3726202505
Tel prefix: 372
Fax: +372 6202501
E-mail address: teet.koiv@ttu.ee
Other E-mails: takoiv@gmail.com
Title of the Paper: Energy efficiency and Indoor climate of apartment and educational buildings in Estonia
Authors as they appear in the Paper: Teet-Andrus Koiv, Kalle Kuusk, Mikk Maivel, Alo Mikola
Email addresses of all the authors: teet.koiv@ttu.ee, takoiv@gmail.com
Number of paper pages: 11
Abstract: The years 1960-1990 saw an extensive construction of apartment buildings in Estonia. In 1970s the specific heat consumption of apartment buildings made up about 350 kWh/m2 per year. The 1990s saw the beginning of the renovation of heat substations, heating and ventilation systems and building envelopes. The renovation of windows in old apartment buildings was accompanied by problems in the indoor climate. The problem of indoor climate seriously concerns educational buildings without mechanical ventilation and partly renovated old apartment buildings. With the help of simulation programs energy conservation achievable with renovation has been analysed in apartment buildings as well as in educational buildings. Characterised is the influence of the new domestic hot water (DHW) calculation method on the determination on the equipment of heat substations and district heating network. The increase of energy efficiency of buildings by heat recovery of heat of exhaust air!
by heat pump is analyzed. In old apartment buildings one of the possible solutions is the air change arrangement by room heat recovery units and programmable exhaust ventilators in toilets, bathrooms and kitchens.
Keywords: Indoor climate, CO2 concentration, Apartment buildings, Educational buildings, DHW flow rates, Energy efficiency, Ventilation systems, Renovation
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