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Archiv článků od 2.1.2017 do 20.3.2017

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20.3.2017
upraveno podle J. B. Hall, Ph.D., Ing. Petr Blasinski, Ph.D., Ing. Jakub Vrána, Ph.D.

The article summarizes overview of ways to secure water heaters in Europe, which became the basis for design of integrated methodology applied in the Czech Republic.

13.3.2017
Ing. Jaroslav Dufka

Remove gases from the water and all equipment in heating systems is one of the basic prerequisites for proper operation.

8.3.2017
Ing. Zdeněk Lyčka

The article explains the differences between the invention patents and utility model from the perspective of Czech legislation. Also highlights the confusion individual categories and purposeful fraud by producers and sellers of equipment.

6.3.2017
Ing. Vladimír Stupavský, redakce TZB-info, Klastr Česká peleta

Czech Statistical Office published in the February 2017 data from a large sample survey in Czech households with an Energy 2015. This survey was focused mainly on the consumption structure and methods of use of particular fuels and energy. The data focus on historical comparisons and consumption trends from 1991 to 2015. The statistics include methods of thermal insulation of housing, fuel used for heating and hot water, the average consumption of Czech households, types of heating sources, etc.

6.3.2017
Ing. Jiří Cigler, Ph.D., Ing. Petr Kudera

Total cost of heating energy typically consists of two items. The former is the payment for consumed energy while the latter is the payment for reserved power capacity or reserved energy capacity in given period. If the customer pays for the reserved power capacity, he/she should address two questions: what is the most suitable level of reserved capacity and how to control the heating system so that the reserved capacity limits are not exceeded. Both questions can be readily solved with the aid of model based predictive controller.

28.2.2017
Daniela Petržilková, Frank Bold Advokáti, s.r.o.

Obtain subsidy for a new boiler and then use it for unapproved fuel burning? There are cases of sellers telling people that it's okay. Such behaviour is of course illegal and the owner of the boiler in such case faces return of subsidy and a financial penalty. The seller on the other hand has nothing to worry about, since he places all the risk on the buyer.

27.2.2017
Ing. František Hopan, Ph.D., Ing. Jiří Horák, Ph.D., Ing. Kamil Krpec, Ph.D., Ing. Petr Kubesa, Ing. Milan Dej, Ph.D., Ing. Vendula Laciok, Ph.D.

The article deals with the determination of emission factors of pollutants from household heating with solid fuels. It also gives the value of specific emissions of PM, CO and TOC and emission balance of household heating in 2001, 2015 and three possible scenarios for the year 2021.

22.2.2017
doc. Ing. Vladimír Jelínek, CSc.

Design and calculation of chimneys includes European standard EN 13384-1 Chimneys - Thermal and hydraulic calculation methods - Part 1: Individual chimneys and EN 13384-2 Chimneys - Thermal and hydraulic calculation methods - Part 2: Common chimneys

20.2.2017
Ing. Jakub Maščuch, Ph.D., Ing. Petr Mydlil

Paper describes selected effects of implementation of biomass microCHP generation in Czech legal conditions. Selected demonstration of biomass CHP is described and basic operational energy balances are presented. Comparison of microCHP and ordinary biomass boiler energy balance were performed. MicroCHP technology WAVE, which is being developed at CTU UCEEB in Buštěhrad, is described. Operational parameters of WAVE and future development outline were discussed.

20.2.2017
Ing. Miloš Bajgar

As a legal expert I often deal with inadequate heating system function. What is common to these devices? Missing balancing valves. It is not possible to assess the flow in connected terminal units that would ensure the necessary transmission capacity from the heat source to the terminal units.

9.2.2017
Ing. Josef Hodboď, TZB-info, redakce

ERU has compiled the inventory of actual prices of thermal energy for holders of licenses for the production and distribution of thermal energy on 31. 12. 2015 and prior to the year 2016. The office added it to historical data since 2006, so it contains last ten years.

8.2.2017
doc. Ing. Vladimír Jelínek, CSc.

Brief summaries of legislation in particular contain information about products with higher technical, technological and intelligent level, specifies requirements for installation and construction works, which require new measurement technology and represents a variant location measuring devices, especially in relation to other installation systems (electro).

2.2.2017
Ing. Zdeněk Lyčka

The Ministry of Environment intends to publish the changes for the second round of grants for the replacement of boilers in March 2017. Prefer to be renewables, coal-fired boilers will have less support than before. Until now, the accepted 26,000 applications for grants, money is one-third depleted.

30.1.2017
Ing. Lenka Reinberková, Ph.D., Ing. Zdeněk Reinberk, Ph.D.

In the previous article we described our decision-making process. At the end of this process we decided to install electric radiant ceiling heating panels. In this article you can read how we have realized it.

30.1.2017
doc. Ing. Tomáš Matuška, Ph.D., ČVUT v Praze, Univerzitní centrum energeticky efektivních budov

The article deals in detail with the solar water heater from the EU Commission Regulation 812/2013. It describes what information provides the label and how it originated classification in the relevant energy efficiency class water heating.

9.1.2017
Ing. Miroslav Kučera, Ph.D., ČVUT v Praze, Fakulta strojní, Ústav techniky prostředí, Časopis Vytápění, větrání, instalace

The paper presents an example of solving the propagation of noise from an air/water heat pump installed in the basement of an apartment building. Air intake and exhaust are brought out on the façade of the building, where it is calculated the noise situation in the protected exterior of the building. In the interior it is solved the propagation of sound from the plant room to the protected interior space. In conclusion, the results are compared with the data from the report on measurement at the realized work.

9.1.2017
Ing. Jan Antonín, Ph.D., Ing. Magdalena Purkrtová

For more than a year, a nearly zero-energy standard has applied to certain buildings. In the Czech environment, specific technical parameters for such buildings have been known for three years. And for over six years, the Directive on energy performance of buildings has been in force, imposing the obligation upon EU member states to introduce this standard.

Nevertheless, it seems that for many experts, including those in the field of energy, this term is still quite unclear. Many imagine buildings coated with photovoltaic modules from the ground to the roof, buildings which are better than passive ones or buildings which are self-sufficient, i.e. completely independent of public energy networks. Given the fact that the concept of a nearly zero energy building is very distant from such notions, and because this standard will soon become obligatory for all buildings, including small family houses, let's have a look at what a nearly zero-energy building really is.

2.1.2017
prof. Ing. Karel Kabele, CSc., Ing. Miroslav Urban, Ph.D.

The article describes the impact of the contemporary and future legislative requirements for new buildings in terms of their conception and utilization of renewable resources. Soon, the requirement of quality standard is going to be effective in the Czech Republic that is called building with nearly zero energy consumption. That quality standard is defined at national level by legal regulations based on the requirement of European standard. On examples of family house, residential house and administration building, the impact of the to-be-established requirements for building conception is being demonstrated from the construction as well as the technical systems' point of view. With the existing development trend maintained it can be expected that a building with nearly zero energy consumption will have, comparing to an existing building, a better quality building shell, technical systems working with high efficiency and potentially may but needn't be, partially supplied by renewable energy resources.


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