Renewables for district heating: The case of Lithuania

Jonynas, Rolandas; Puida, Egidijus; Poškas, Robertas; Paukštaitis, Linas; Jouhara, Hussam; Gudzinskas, Juozas; Miliauskas, Gintautas; Lukoševičius, Valdas

doi:10.1016/j.energy.2020.119064

Cited by 41 publications

(11 citation statements)

References 49 publications

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“…Developing biomass district heating (BioDH) systems is a potential method to take advantage of agriculture and forestry residues or energy crops as an alternative to fossil fuels [25]. Due to the fact that biomass has lower energy density compared to fossil fuels, it is not economically feasible to transport the biomass over 80 km [26].…”

Section: Energy Sourcesmentioning

confidence: 99%

Smart Asset Management for District Heating Systems in the Baltic Sea Region

et al. 2021

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The purpose of this review is to provide insight and a comparison of the current status of district heating (DH) systems for selected Baltic Sea countries (Denmark, Germany, Finland, Latvia, Lithuania, Poland, and Sweden), especially from viewpoints of application and solutions of novel smart asset management (SAM) approaches. Furthermore, this paper considers European projects ongoing from 2016, involving participants from the Baltic Sea Region, concerning various aspects of DH systems. The review presents the energy sources with particular attention to renewable energy sources (RES), district heating generations, and the exploitation problems of DH systems. The essential point is a comparison of traditional maintenance systems versus SAM solutions for optimal design, operating conditions, and controlling of the DH networks. The main conclusions regarding DH systems in Baltic Sea countries are commitment towards a transition to 4th generation DH, raising the quality and efficiency of heat supply systems, and simultaneously minimizing the costs. The overall trends show that applied technologies aim to increase the share of renewable energy sources and reduce greenhouse gas emissions. Furthermore, examples presented in this review underline the importance of the implementation of a smart asset management concept to modern DH systems.

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Section: Energy Sourcesmentioning

confidence: 99%

Smart Asset Management for District Heating Systems in the Baltic Sea Region

et al. 2021

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“…As the name suggests, latent heat of the flue gas stream is also utilized in a condensing economizer. Usually installed by the district heat producers to increase the total efficiency [51,52], condensing economizers are also discussed for the flue gas heat recovery. However, the heat recovered would be useful only for low-temperature heat demand.…”

Section: Economizer and Latent Heat Utilizationmentioning

confidence: 99%

Hydrogen Oxyfuel Combustion for Energy-Intensive Industries

Iplik¹,

Adendorff²,

Muren³

2022

Clean Energy Technologies - Hydrogen and Gasification Processes

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Hydrogen has been seen as a decarbonization enabler for the last few decades, and in the last couple of years, there have been many investments in its production through renewables and use in different industrial applications. It is often researched for energy storage, and combustion is an excellent alternative to recover the energy stored in hydrogen. It might be the most viable alternative, especially when it comes to energy-intensive metal and glass production processes. The utilization of hydrogen as a fuel in these processes would reduce greenhouse gas emissions significantly, considering their share in total emissions. Since these industries already benefit from oxyfuel combustion with traditional fuels for fuel savings, part of the infrastructure already exists for hydrogen oxyfuel combustion. Fuel change is expected to require some minor adjustments other than simply changing the oxidizer; however, each industry has specific points to consider. This chapter investigates metal and glass production processes based on their needs and challenges in using hydrogen oxyfuel combustion for heating. Additionally, possible exhaust gas stream improvements are suggested to recover energy and reduce emissions. Finally, safety aspects of hydrogen and oxygen use are discussed together with the community acceptance of hydrogen use.

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“…In fact, the challenge is to adopt or select the suitable ESS while being eco-friendly, which imposes choosing storage systems such as mechanical energy storage [14] and hydrogen fuel cell [15]. The former is usually used in short-term applications when a fast response is required and has been frequently used in small grids district systems [16,17]. It is found mainly in three different forms: flywheel [18], pumped hydro [19], and compressed air [20].…”

Section: Introductionmentioning

confidence: 99%