ENERGETIKA

ISSN for PRINT: 0235-7208

For Online Access

Best Paper Award Selection - Editorial Board Site

2004, Volume1

Issue 1

90 pages

Issue price - $29.00

Darius Strazdas
Lithuanian Energy Institute, Regionø energetikos plëtros laboratorija, Breslaujos str. 3, LT-44403 Kaunas, Lithuania

Vaclovas Kveselis
Lithuanian Energy Institute, Regionø energetikos plëtros laboratorija, Breslaujos str. 3, LT-44403 Kaunas, Lithuania

Petras Urbonas
Vilniaus Gedimino technikos universitetas, Saulëtekio al. 11, LT-2040 Vilnius, Lithuania

An analysis of heat consumption for a group of residential buildings was carried out using data before and after modernization of buildings’ substations during 1998−2001. The results show that the bulk heat consumption for space heating increased for buildings with a low consumption and decreased for buildings with higher heat needs. Also, heat losses increased after reconstruction during the summer season, but the avoided great heat losses during the winter season resulted in a reduction of the annual losses. The economic analysis has shown that the payback time of investment to heat supply network modernization is no more than two and a half year, and major savings come from avoided network maintenance and repair costs.

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