Browsing by Subject "district heating"

Now showing 1 - 6 of 6

Access status: Open Access ,
Analiza mikroklimatu pomieszczenia mieszkalnego
(Wydawnictwa AGH, 2024) Ciupa, Adam
This article presents the essence of ensuring appropriate conditions in living quarters, ventilation and central heating systems in the civil engineering from the period of the Polish People’s Republic (PRL) and the course of research into the microclimate of a living quarter on an actual example. Based on the obtained results, appropriate conclusions concerning the modernization were made. They can be applied to many rooms of this type in Poland. The research showed that in the indicated room, the outdated window and balcony door should be replaced with new ones with automatic air diffusers with a fine filters and a sectional cast iron radiator with a plate one. Central heating installation pipes should be insulated. In addition, it will be necessary to place an air humidifier. What’s more, it is recommended to invest in an air purifier.
Access status: Open Access ,
Risk management in heating industry
(Wydawnictwa AGH, 2022) Iwaszczuk, Aleksander; Iwaszczuk, Natalia
The heating industry plays a very important role in countries with cold and temperate climates, together with the power industry, it determines the energy security of these countries. The aim of this article is to examine the risks that threaten the stability of heating companies. The study is based on an analysis of the scientific literature and the macroeconomic environment as well as on interviews with employees from the heating industry. The article identifies the risks and divides them into three groups: general economic, industry, and specific risks. A risk map was drawn, and a qualitative analysis of their impact was carried out for the aforementioned companies. This map is a useful tool for making decisions that are related to risk management and ensuring the stability of the functioning of business entities as well as gaining information for both government and local authorities in the search for effective ways to drive the sector’s development.
Access status: Restricted ,
Rynek energii cieplnej w Polsce
(Data obrony: 2018-01-22) Kotowicz, Karol
Wydział Geologii, Geofizyki i Ochrony Środowiska
W pracy opisano podstawy działania systemów ciepłowniczych. Scharakteryzowano polskie systemy ciepłownicze wraz ze źródłami ciepła oraz przesyłem. Przedstawiono analizę rynku energii cieplnej w Polsce oraz podano kilka przykładów nowoczesnych systemów ciepłowniczych opartych o konwencjonalne i odnawialne źródła energii.
Access status: Restricted ,
Study of surplus energy utilization generated in intermittent power plants for energy storage in district heating system in the Westfjords, Iceland
(Data obrony: 2018-09-20) Mathews, Kamil
Wydział Geologii, Geofizyki i Ochrony Środowiska
In this study the system combining wind turbines, district heating network and thermal energy storage was proposed and examined for the instance of the Westfjords, Iceland. This approach is set to mitigate the negative impact of unstable renewable energy sources and manage the generated surpluses. The short review of the current state of energy sector in Iceland was provided to present local conditions. Wind potential in the described area was estimated as high and compared with average wind turbine generation in European Union. In addition, long term correlation between power production and demand in district heating network was proven. It is assessed that roughly 60% of consumed energy could be supplied by introducing wind turbines to existing electric and oil district heating system. Moreover, this share can be increased by adding thermal energy storage. Finally, some recommendations basing on this project were given to Polish energy market.
Access status: Open Access ,
Study of wind power utilization in district heating systemsin the Westfjords, Iceland
(Wydawnictwa AGH, 2019) Mathews, Kamil; Sowiżdżał, Anna
Some Renewable Energy Sources (RES), such as wind power, are often regarded as intermittent. That means they are not available on demand, but rather depend on external conditions e.g. such as the weather. In order to manage these resources, it is advised to combine them with energy storage or other energy sectors, what is known as »sector coupling«. This approach is set to mitigate the negative impact of unstable renewable energy sources and manage the generated surpluses. In this study, a system combining wind turbines, district heating network and short-term thermal energy storage was proposed and examined for the instance of the Westfjords, Iceland. Ísafjörður, Patreksfjörður, Bolungarvík and Flateyri are the exemplary communities with existing district heating networks, chosen to investigate the implementation of the system. A short review of the current state of the energy sector in Iceland was provided to present the local conditions. Wind potential in the described area was estimated as high in comparison with average wind turbine generation in the European Union and a few instances of wind turbines placement were analyzed in this study. For locations close to the district heating net-work, a long-term correlation between power generation and usage was proven. However, locating wind turbines in places with better wind conditions, provides stable output and a similar amount of energy produced by fewer generators.
Access status: Restricted ,
The concept of the geothermal district heating system for dispersed settlement on the example of the town of Holmavik in Iceland
(Data obrony: 2016-09-08) Ciapała, Bartłomiej Krzysztof
Wydział Geologii, Geofizyki i Ochrony Środowiska
The thesis provides two concepts of providing geothermal heat to all kinds of building in the Holmavik town (Westfjords, Iceland), that is devoid of sufficient typical geothermal resources. Environmental and anthropogenic backgrounds, local conditions and steps of design were presented together with comparison of proposed systems.