Thermal energy is necessary of many reasons. The most basic and most obvious includes food preparation and delivery of heat. Thermal energy storage is actually a temporary storage at high temperatures, respectively at low temperatures. It is an advanced technology, which can reduce environmental impact and it can facilitate more efficient and cleaner energy system. Nowadays, these systems have ability to retain thermal energy for a period of three months or more. The aim of design of these systems is to keep the thermal energy in summer period and to use it for heating in winter period. The role of such storage systems is to accumulate the heat, to balance temperature differences and to achieve the most effective use of the collected energy. This paper is focused on thermal analysis of system, which contains concrete tank. It is a system with water as a storage medium and the cooling of the water was monitored for 30 days.
This document deals with the determination of thermal transmission properties of wood-aluminium window with vacuum glazing. Test measurements are performed with guarded hot-box method at defined temperature difference. They describe how the support pillars influence temperature distribution on the surface and how the edge vacuum glazing influence the heat flow through window. The deformation of the temperature field due to support pillars is surprisingly small and its range is from 0.20 K to 0.46 K with temperature difference on both sides of approximately 20 K. Decrease of internal surface temperature from the middle of glass to the edge is about 20.04 – 16.15 = 3.89 K.
This paper is focused on new seasonal energy storage technology. World demands for energy are increasing at present, but the resources of fuel are limited. There is a prediction, that they will become rare and more expensive in subsequent years. The technology, which can contribute to increasing the efficiency of energy consumption, is thermal energy storage. The role of such energy storage systems is to accumulate heat, balancing temperature differences and achievement the most effective use of the collected energy. Thermal energy storage plays an important role in increasing the using of renewable energy.
Currently, almost an half of households in the Slovak Republic live in an apartment house, which is just over 900,000 housing units. The structure and development of housing in urban units, such as a city. Cities and their surrounding functional area take a significant part in the economic development of the whole country; they are natural centers of public and commercial services. Region as the administrative district merge towns and municipalities under the territorial district. The aim of the article is to use the methods of mathematical statistics "Variance analysis" to determine if the geographic location of the region influences the number of new dwellings with planning permission and the number of competed apartments with completion approval. Importance of the geographical location of the region as a influencing factor on the construction of housing is the subject of conclusion of our paper. © 2015 The Authors. Published by Elsevier B.V.Peer-review under responsibility of Academic World Research and Education Center.Keywords: Analysis of variance; completion approval; planning permission; region.
Napriek tomu, že kvalita stavebných materiálov a know-how v oblasti projektovania sú na vysokej úrovni, poruchy stavieb sú stále bežné. V tomto prípade pravdepodobnosť vzniku poruchy rekonštruovanej budovy čiastočne umocnil fakt, že steny sú z hlinených (nepálených) tehál. Avšak tento fakt nebol jedinou príčinou nedostatkov. Tento článok popisuje niektoré vybrané defekty. V závere sú uvedené zistenia a odporúčania na opravu. Tento článok bol prezentovaný na konferencii JuFoS 2019. Klíčová slova: rekonštrukcia tehlového domu z nepálenej hliny, poruchy.
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