House and renovation
Generally, solar energy systems used in single-family housing can be divided into:
General classification of solar energy systems
— directly converting solar energy into electricity,
- active (active), which convert the energy of solar radiation into heat energy of various kinds …
What solvents belong to aromatic hydrocarbons? Aromatic hydrocarbons are composed of carbon and hydrogen ring molecules. The best known aromatic solvent is benzene, from which other aromatic compounds are derived, such as toluene, xylene and styrene. Since benzene has been found to be …
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What dispersion binders are considered to be particularly alkali-resistant?
Particularly alkali-resistant dispersion binders are acrylates and a styrene-butadiene copolymer (more commonly known as latex). Polyvinylacetate and polyvinylpropionate are relatively easily saponified by alkalis. …
Thermal insulation is designed to limit heat losses to the environment through the rear and side walls of the collector. Apart from low thermal conductivity, it should be non-absorbent, resistant to elevated temperatures and high mechanical strength, so that the construction of rigid ones can be dispensed with …
Already with the current efficiency of approx. 10%, solar power plant located in the desert and covering an area 300 — 1000 km2 (ok. 1/3 the territory of Egypt) would be able to produce energy equal to this, which the whole world consumes, and the solar cell has a surface 30 m2, …
In what coating materials painters and varnishers use acrylic resins as binders?
Painters and varnishers use acrylic resins as binders in plaster primers, in dispersion paints, paints drying by evaporation of the thinner, in two-component fillers, varnishes and paints. Too …
How dispersion paints are divided according to resistance?
Dispersion paints can be resistant to: washing up, scrubbing and weathering.
What are dispersion paints that do not emit to the environment?
Dispersion paints that do not emit to the environment are characterized by this, …
The efficiency of solar collectors depends on the temperature of the working medium.
The efficiency of flat plate collectors decreases with increasing temperature of the working medium, therefore, more than one should not be connected in series.
The number of series-connected Collectors depends on this, what temperature of the medium we want …
ZC20 actuators have been installed in the roof windows to open and close the windows.
The ZC20 chain actuator, thanks to its small dimensions and simple installation method, is a product ideally suited for controlling roof windows.. The actuator is available in two voltage versions 230 V …
External roller shutters have been installed on the roof and L-shaped windows, which ensure full comfort of using the attic and, in the case of a passive house, provide energy protection. They help to maintain the right temperature inside the room regardless of the season, provide protection against outside noise …