Review of Heat Pumps Application Potential in Cold Climate

Bogdanovics, Raimonds; Borodiņecs, Anatolijs; Zajacs, Aleksandrs; Šteinerte, Kristīne

doi:10.1007/978-3-319-70987-1_58

Cited by 12 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Country-specific climate in the northern latitudes provides a large proportion of energy consumption for heating and hot water needs, mainly in the period from October to April. In addition, the ground heat pump's maximum efficiency yield accounts for the October-December period, and the lowest efficiency rate is recorded for the time frame between February and April [1]. Unfortunately, the solar radiation duration and intensity depend on the season, weather conditions and geographical position of a country.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of solar assisted ground coupled heat pump system in Latvia

2020

View full text Add to dashboard Cite

Today, with the increased popularity and availability of renewable energy sources the question of ensuring a proper household heating, that is energy, is not as complicated as it used to be. Users are embracing the environmental sustainability stand and are turning to heat pumps and solar panels as means of providing heat for their homes. The geothermal heat pump and solar thermal panels energy efficiency rates coupled make these the perfect choice for those, who are concerned about the impact they make on the environment-aspiring to zero emission buildings. The combined system of solar thermal panels and ground source heat pump for heating capacity 13 kW will be developed. The main novelty is the investigation of a new type of a solar thermal accumulation tank. Hypothetically this solar assisted ground coupled heat pump system should reach COP rate 4 and reduce electricity demand consumption by 40%. To find out the truth of proposed thesis, the research will be carried out. Both simulation and real-life object data analysis will be performed. As a result, the potential of such a system in northern latitudes will be determined.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance analysis of solar assisted ground coupled heat pump system in Latvia

2020

View full text Add to dashboard Cite

show abstract

“…Tomēr rezultāti bija pilnīgi neapmierinoši. Tas ir izskaidrots monogrāfijā 12 : "Ir labi zināms, ka matrica 𝑋 𝑇 𝑋 ir diezgan slikti noteikta." Turpinot autors norāda: "Viens no veidiem, kā samazināt matricas 𝑋 𝑇 𝑋 sliktās nosacītības ietekmi, ir izmantot Čebiševa polinomus..." Šī iespēja tika pārbaudīta, bet rezultāts atkal bija neapmierinošs.…”

Section: Bāzes Regresijas Modelis -Klasiskais Analīzes Modelisunclassified

Elektroenerģijas pieprasījuma reakcijas mehānisma attīstības veicināšana ar atjaunīgo energoresursu integrāciju un patērētāju iesaisti Latvijā. Promocijas darba kopsavilkums

Siliņeviča¹

View full text Add to dashboard Cite

Elektroenerģijas tirgus noskaidrošanas galvenais princips ir sabiedrības labklājības maksimizācija. Elektroenerģijas racionāla patēriņa kontekstā, lai sabiedrība iegūtu maksimālu labumu, sociālā labklājība ir patērētāju pārpalikuma, piegādātāju pārpalikuma un pārslodzes rentes summa. Jau gadu desmitiem, diskutējot par elektroenerģijas nozares drošību, tiek uzsvērta piedāvājuma un pieprasījuma līdzsvara nozīme. Vienlaikus, pētot galvenokārt piedāvājuma potenciālu, pamatoti ir pieņemts, ka pieprasījums pēc elektroenerģijas ir neelastīgs. Tomēr, lai risinātu trīs galvenos Eiropas enerģētikas politikas uzdevumus – ilgtspējību, piegādes drošību un konkurētspēju, vienlaikus garantējot enerģijas sadales taisnīgumu, – pašreizējā izpratne par elektroenerģijas sistēmas piedāvājumu un pieprasījumu ir jāaktualizē. Pētījuma mērķis ir izstrādāt elektroenerģijas pieprasījuma reakcijas konceptuālo ietvaru atjaunīgo energoresursu integrācijai un patērētāju iesaistei, balstoties uz pieprasījuma reakcijas agregatora – informācijas un tehnoloģiju uzņēmuma – tehnoloģiju, Latvijas elektroenerģijas sektorā. Promocijas darbs sastāv no ievada, trim nodaļām, secinājumiem, priekšlikumiem un literatūras saraksta. Ievadā tiek pamatota pētījuma tēmas aktualitāte, definēti tā mērķi un uzdevumi, priekšmets un objekts, izvirzīta pētījuma hipotēze, kā arī noteikta pētījuma zinātniskā novitāte un praktiskais nozīmīgums. Pirmajā un otrajā nodaļā sniegts teorētiskais un metodoloģiskais ietvars, pieprasījuma reakcijas ekonomiskie un institucionālie pamati un īpatnības enerģētikas nozarē, elektroenerģijas cenu faktori, elektroenerģijas galalietotāju jaunā loma un pieprasījuma reakcijas optimizācijas iespējas. Trešajā nodaļā autore argumentēti analizē enerģētikas nozares makroekonomisko un fizisko rādītāju, atjaunīgo energoresursu un elektroenerģijas sistēmas cenu tendences, aprēķina aptuvenās atkarību formulas un determinācijas koeficientus; ir izstrādāta metodoloģija elektroenerģijas nozares fizisko un sistēmas cenu rādītāju korelācijas un regresijas atkarību visaptverošai analīzei, pamatojoties uz atbilstošu klasisko matemātisko modeļu adaptāciju, tiek papildināta literatūra par valsts atbalsta ietekmi uz elektroenerģijas tirgu. Ceturtajā nodaļā autore izvirza, izstrādā un pamato jaunu divlīmeņu pieprasījuma reakcijas pakalpojumu optimizācijas tehnikas modeli, kura pirmajā posmā tiek piedāvāts risināt elektroenerģijas patēriņa samazināšanas problēmu un otrajā posmā – risināt optimizācijas problēmu, kādas aktīvo patērētāju grupas slodzes atslēgt, ja elektroenerģijas daudzums ir nepietiekams, un tādējādi reaģēt uz elektroenerģijas tirgus cenām. Darba nobeigumā ir formulēti secinājumi un priekšlikumi. Darba pamatteksts izklāstīts 155 lappusēs. Bibliogrāfisko sarakstu veido 137 avoti. Promocijas darbā ir 48 tabulas, 31 attēls un 2 pielikumi.

show abstract

“…Although DSM programs are widespread in most countries of the European Union, in some countries, such like Latvia and Estonia, DSM programs are only at the concept stage. 32 It is necessary to use the full range of available demand management resources and cover all categories of consumers for whom it is possible to benefit from management own load. Demand management programs in an individual country are developed taking into account the specifics of the demand for electricity consumption, the structure of demand for electricity consumption by consumers, the level the introduction of information technologies, as well as the importance of the task of increasing energy efficiency for economy.…”

Section: Genesis Of the Demand Response Conceptmentioning

confidence: 99%

“…Various RES-s are used for electricity generation in the residential sector, such as solar and wind energy 249 . Up to June 2020, the Ministry of Economics (ME) had issued 282 permits to increase electricity generation capacity or introduce new generation facilities that do not meet the requirements for microgenerator connections 250 . According to the information of the ME on issued permits, 46 % of them use solar energy and 30 % use wind energy to generate electricity; the rest also use RES hydropower or biomass cogeneration plants.…”

Section: The Role Of the Energy Prosumers In The Electricity Market A...mentioning

confidence: 99%

See 1 more Smart Citation

Development of the Electricity Demand Response Mechanism for Renewable Integration and Consumer Engagement in Latvia. Doctoral Thesis

Siliņeviča¹

View full text Add to dashboard Cite

The key principle of electricity market design is the maximisation of public welfare. In the context of rational electricity consumption, social welfare is the sum of consumer surplus, supplier surplus and congestion rents in order to maximise the benefits to society. For decades, the importance of balancing supply and demand has been emphasised in discussions on the security of the electricity sector. It has been reasonably assumed that electricity demand is inelastic, mainly by studying supply potential. However, the current understanding of supply and demand in the electricity system needs to address the three main challenges of European energy policy: sustainability, security of supply and competitiveness, while guaranteeing fairness in energy distribution. The aim of the research is to develop a conceptual framework for the integration of renewable energy sources and consumer involvement, based on the technology of a Demand Response aggregator – an information and technology company – in the Latvian electricity sector. The Thesis consists of an introduction, four chapters, conclusions, recommendations and a bibliography. The introduction explains the actuality of the research topic, defines the aims and objectives of the research, its subject and object, puts forward the research hypothesis, and determines the scientific novelty and practical significance of the research. In the first and second chapters, a theoretical and methodological framework, economic and institutional foundations and peculiarities of Demand Response in the energy sector, electricity price factors, the new role of electricity end-users and the possibilities of optimising demand response are provided. In the third chapter, the author analyses the macroeconomic and physical indicator trends of the energy sector, the renewable energy sources and electricity system prices, calculates approximate dependence formulae and coefficients of determination; develops a methodology for a comprehensive analysis of correlation and regression dependence of physical and system price indicators of the electricity sector based on an appropriate adaptation of classical mathematical models, and contributes to the literature on the impact of the state aid on the electricity market. In the fourth chapter, the author has proposed and developed a new two-level technical model for optimisation of demand response services, which proposes to solve the problem of reducing electricity consumption in the first stage and, in the second stage, to solve the optimisation problem of which group of active consumers' loads to disconnect in case of electricity shortages, thus, to respond to electricity market prices. The main text of the Thesis is 155 pages. The bibliography contains 137 sources. Additionally, 48 tables, 31 figures and 2 annexes are included in the Thesis.

show abstract

Review of Heat Pumps Application Potential in Cold Climate

Cited by 12 publications

References 19 publications

Performance analysis of solar assisted ground coupled heat pump system in Latvia

Performance analysis of solar assisted ground coupled heat pump system in Latvia

Elektroenerģijas pieprasījuma reakcijas mehānisma attīstības veicināšana ar atjaunīgo energoresursu integrāciju un patērētāju iesaisti Latvijā. Promocijas darba kopsavilkums

Development of the Electricity Demand Response Mechanism for Renewable Integration and Consumer Engagement in Latvia. Doctoral Thesis

Contact Info

Product

Resources

About