Taking into account the experience and results of the investigation of certain events on the gas and associated facilities (fire, explosion, poisoning, fumes, prohibited manipulation, etc.) from the perspective of a forensic expert we have prepared material, which will be published on the continuation. Contents of this material is based on real cases. Material according to the extent of individual reported cases includes:
The purpose of the material is to highlight the potential risks when designing, installing, testing, inspecting, maintening and operating of gas and associated equipment and also to identify possible breaches of regulations and procedures in everyday practice.
Individual cases are accompanied by photographs, measurements and in some cases by used calculations.
The material will be regularly complemented by other practical cases.
Currently, it is common to design the heating system such as two-pipe. Automated computing programs contribute to this trend that other variants can not even rule. But for some buildings is single pipe system from the perspective of operation suitable and due to lower material intensity even better preferable. The author demonstrates this on specific example of a two-floor family house.
Taking into account the experience and results of the investigation of certain events on the gas and associated facilities (fire, explosion, poisoning, fumes, prohibited manipulation, etc.) from the perspective of a forensic expert we have prepared material, which will be published on the continuation. Contents of this material is based on real cases. Material according to the extent of individual reported cases includes:
The purpose of the material is to highlight the potential risks when designing, installing, testing, inspecting, maintening and operating of gas and associated equipment and also to identify possible breaches of regulations and procedures in everyday practice.
Individual cases are accompanied by photographs, measurements and in some cases by used calculations.
The material will be regularly complemented by other practical cases.
Operators of boilers and heaters, solid fuel for power from 10 to 300 kW, connected to a hot water heating system, left last month in order to secure the obligatory checking its source authorized person (if not already). Perhaps the biggest problem are false inspectors who at the gullible and "ignorant" operators carry out checks without having to be entitled. Thus, the inspections carried out are usually cheaper than controls carried out by an authorized person, but from the perspective of the law are invalid.
The European Parliament approved November 23, 2016 the new limits for selected emissions and air pollutants. For Member States resulting from this new commitments to reduce certain emissions in two stages - from 2020 and from 2030. For the Czech Republic based on commitments to the middle threshold in comparison to the commitments of other EU members. Prescribed emission reductions will be mainly sulfur dioxide, nitrogen oxides, ammonia emissions and fine particulate matter (airborne dust).
The article describes the role of coal in the segment of small household heating heat source. Support of brown coal boilers in the framework of subsidies from European funds is in full swing, but many of these boilers failed to comply with the European Commission.
On the other hand, there are mechanisms by which the Czech Republic wants significantly reduce the burning of brown coal in small combustion sources in the foreseeable future. It is most often quoted Czech against-fossil law, but it is not alone one.
The introduction of stricter Ecodesign requirements for products associated with the consumption and production of energy is related to a smooth transition to the use of gas condensing boilers. In practice, exchanges of old boilers meet incorrect interpretation and perceptions about the benefits of condensing boilers. The article therefore assesses the impact of condensation theory and measurement and answers some practical issues.
Taking into account the experience and results of the investigation of certain events on the gas and associated facilities (fire, explosion, poisoning, fumes, prohibited manipulation, etc.) from the perspective of a forensic expert we have prepared material, which will be published on the continuation. Contents of this material is based on real cases. Material according to the extent of individual reported cases includes:
The purpose of the material is to highlight the potential risks when designing, installing, testing, inspecting, maintening and operating of gas and associated equipment and also to identify possible breaches of regulations and procedures in everyday practice.
Individual cases are accompanied by photographs, measurements and in some cases by used calculations.
The material will be regularly complemented by other practical cases.
The introduction of stricter Ecodesign requirements for products associated with the consumption and production of energy is related to a smooth transition to the use of gas condensing boilers. In practice, exchanges of old boilers meet incorrect interpretation and perceptions about the benefits of condensing boilers. The article therefore assesses the impact of condensation theory and measurement and answers some practical issues.
The article deals with possibilities of using heat from waste water discharged by outlet pipes of house appliances. The first section describes the basic possibilities of the local heat recovery (recuperation), used mainly in showers and shower baths. Theoretical analysis of the efficiency and related achievable savings is supported by an experimental measurement of a selected type of recuperative heat exchanger. The results of the measurement are compared with the classification according to the Passive House Institute. In addition to the efficiency and energy savings achieved by deploying the recuperative heat exchanger, the economic return of the specific heat exchanger is also determined for different boundary conditions.
Coal prices in Europe rose during 2016 by a staggering 69%. Coal producers suffer from the decreasing demand and are forced to reduce mining. It fell by 10%. Direct response is an increase in coal prices. It can be expected that the coal industry will continue to decline and the forehead will receive renewable energy sources. In renewables has already begun to invest in China. The rise in the price of coal should count and households.
Taking into account the experience and results of the investigation of certain events on the gas and associated facilities (fire, explosion, poisoning, fumes, prohibited manipulation, etc.) from the perspective of a forensic expert we have prepared material, which will be published on the continuation. Contents of this material is based on real cases. Material according to the extent of individual reported cases includes:
The purpose of the material is to highlight the potential risks when designing, installing, testing, inspecting, maintening and operating of gas and associated equipment and also to identify possible breaches of regulations and procedures in everyday practice.
Individual cases are accompanied by photographs, measurements and in some cases by used calculations.
The material will be regularly complemented by other practical cases.
This article is focused on the theory of heat distribution, thermal energy storage ability in the construction according to the thickness of thermal insulation and optimizing its design, also impact of pipe spacing in this type of energy-construction system. Mathematics and Physics model of reinforced concrete wall with active thermal protection was developed. It was run series of Steady-State simulations at this model with different input data about thermal insulation thickness, pipe spacing and concrete wall thickness. Unsteady simulations analyzed the possibility of thermal energy storing in this kind of construction systems. This article also describes preparation of experimental measurement in the environment of the Climate chamber.
At the level of the family living in the houses have increasingly promoted the combination of a new wood-fired boiler with a solar thermal system. Investors installations thus combined technologies monitor both reduce their energy costs and increase comfort and simplifies operation of facilities providing heat for heating and hot water.
The article describes the requirements for domestic hot water in residential houses. It deals with determining the need for hot water depending on the type of house, hot water consumption profile in residential buildings and with three basic methods for designing storage hot water tank and heat output of hot water heaters.
The commitment of the Czech Republic to increase the energy efficiency of heating by 20 % until 2020, is in the same ratio to increase heat savings without decreasing the internal temperature. For the first time it requires to achieve real savings of heat, not only reduce the level of heat in terms of economic behavior of users of flats. Network users can reduce the inside temperature, but increasing the energy efficiency of heating it falls short. The article informs about solutions for all insulated and non-insulated buildings.
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