Nejnavštěvovanější odborný web
pro stavebnictví a technická zařízení budov
estav.tvnový videoportál

Vytápění
Archiv článků od 11.11.2013 do 10.3.2014

Archiv recenzovaných článků

zpět na aktuální články

24.2.2014
Ing. Ladislav Tintěra

The evaluation of the heating period for the calendar year 2013 is useful for producers and consumers, who work on a January-December regime. It also provides data to energy experts for assessing the operational energy consumption of buildings. It also provides figures for the controlling of boilers, according the Decree 276/2007 Coll.

Ohřívání studených rukou nad topením
17.2.2014
Ing. Pavol Hrebík, PhD., Ing. Peter Matiašovský, PhD.

Uncertainty of input parameters affected the behavior of people: internal temperature, internal heat gains, air exchange rate enter into the calculation of standardized assessments by EPB. The analysis of these parameters is accurate through operational rating.

10.2.2014
Ing. Zdeněk Lyčka, APTT

The article describes the design of solid fuel boilers. Primarily addresses the question of what material is suitable for the construction of the boiler body. Whether steel or cast iron?

plamen plynového hořáku
3.2.2014
Ing. Vladimír Valenta

The paper presents the derivation of calculating the real efficiency of gas boilers with single-stage atmospheric burner. The cause of looping are states when the minimum boiler output is several times higher than the required nominal heat output for heating. The looping of boiler reduces its operating efficiency.

plynový kotel
20.1.2014
Ing. Vladimír Valenta

For the operation of the gas boilers is necessary to ensure the supply of combustion air, and in the boiler room need to guarantee adequate ventilation. Here will be presented formulas for the design of the flow of combustion and ventilation air for the gas boilers type B and for the coal boilers.

Odečty tepla
20.1.2014
Ing. Otakar Klokočník

New rules for cost of heat energy allocation for central heating in houses applying evaluative indicators for these purposes. The Minister for Regional Development approved a draft amendment to Decree No. 372/2001. This amendment allows to increase the share folder of running radiators up to 70 % of total heat energy cost. The distribution of this component to final consumers suffers from a significant systemic problem, and these measures will further worsen the credibility of allocation results.

13.1.2014
Ing. Petr Kubesa, Ing. Jiří Horák, Ph.D., Ing. František Hopan, Ph.D., Ing. Kamil Krpec, Ph.D., Ing. Lubomír Martiník

The object of article is to provide basic information about approaches to testing of stoves burning solid fuels in Europe and some other countries. Generally, stoves in Europe are tested according standard EN 13240. However, there’re other standards on national basis, for example Norwegian standards NS3058 and NS3059. If we look away from European border we can found standards which describe methods of stove testing – Australian/New Zealand standards and EPA standards in U.S.A. The article provides information about measuring sets, characterization of used fuels, testing categories for burning periods, measured parameters, emission limits and others things which are in these standards.

Pelety
6.1.2014
Ing. Vladimír Stupavský, redakce TZB-info, Klastr Česká peleta

Biomass Action Plan envisages the available space in 3 variants with respect to the degree of self-sufficiency in food C.R. Area of fast-growing tree species growing steadily, in terms of total energy production is negligible involvement. By registering, according to the law of ash can be removed from the category of waste, and consequently can be applied as fertilizer.

23.12.2013
Ing. Petr Kubesa, Ing. Jiří Horák, Ph.D., Ing. František Hopan, Ph.D., Ing. Kamil Krpec, Ph.D., Ing. Lubomír Martiník

The object of article is to provide basic information about approaches to testing of stoves burning solid fuels in Europe and some other countries. Generally, stoves in Europe are tested according standard EN 13240. However, there’re other standards on national basis, for example Norwegian standards NS3058 and NS3059. If we look away from European border we can found standards which describe methods of stove testing – Australian/New Zealand standards and EPA standards in U.S.A. The article provides information about measuring sets, characterization of used fuels, testing categories for burning periods, measured parameters, emission limits and others things which are in these standards.

jaderná a fotovoltaická elektrárna
16.12.2013
Ing. Bronislav Bechník, Ph.D.

Plans of the coalition in energy sector:

  • - Reduce energy intensity of industry
  • - Diversification of energy resources
  • - Reduce energy performance of buildings
  • - Review the RES support
  • - Support for the research of RES and energy storage
  • - Construction of new units at Temelin Nuclear Power Plant
  • - Reconstruction and greening of heating industry
  • - Assure coal for heating
  • - Revitalization after the coal mining
  • - Support for Smart Grids

Měřič tepla
9.12.2013
Petr Holyszewski, produktový manažer společnosti ENBRA

Heat meters are working set gauges and installation can only be performed by a registered company in the Czech Metrological Institute. Yet they are very often used and installed improperly or incorrectly. The following text should be specific instructions on what to avoid during installation of heat meters.

Praha, Pražský hrad
2.12.2013
Ing. Ladislav Tintěra

The heating period 2012/2013 in Prague based on the observation of Prague-Karlov Station was 234 days, a little longer, and with an average temperature of 5.0 °C, slightly warmer than the long-term average. The basic characteristic of heat demand for heating is 3266 D°(19) degree days, hence, the heat demand is slightly higher than long-term average 3224 D°(19). In the last decade, it is the highest number of degree days for a heating period and the second highest number of degree days than long-term average.

Plynový kotel
25.11.2013
Ing. Jiří Buchta, CSc., Ing. Miroslav Burišin

Opinions of the professionals concerned on the issue of fire safety in the operation of chimneys, flues and fuel appliances that address the Government Regulation No. 91/2010, are very different. Since this is a very serious issue, TZB-info wants to provide space for professional discussion, which result should be the unification of opinions.

25.11.2013
Ing. Vladimír Stupavský, redakce TZB-info, Klastr Česká peleta

The market for wood pellets has grown, which is understandable due to the following market growth with boilers and biomass stoves. On the contrary, the market for agro pellets gradually declining. Pellets from agricultural production are completely different type of fuel than wood pellets. These industrial fuel which is in most cases not suitable for domestic heating.

kominík
18.11.2013
Ing. František Jiřík, soudní znalec v oboru stavebním se zvláštní specializací kominictví

The article is a response to article Proposal for the content of comments to Government Regulation No. 91/2010 Coll. and also warning of the dangers of carbon monoxide poisoning from gas fired appliances.


zpět na aktuální články
 
 
Reklama