scholarly journals Optimal Integration of Renewable Sources and Latent Heat Storages for Residential Application

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5528
Author(s):  
Giulia Mancò ◽  
Elisa Guelpa ◽  
Vittorio Verda
Keyword(s):  
Design Optimization ◽  
Latent Heat ◽  
Primary Energy ◽  
Installation Space ◽  
Small Scale ◽  
Low Carbon ◽  
Latent Heat Storage ◽  
Energy Technologies ◽  
Low Energy Buildings ◽  
The Impact

Given the large amount of energy required in the building sector, an interesting opportunity to reach future sustainable energy systems is the path towards low energy buildings. This work proposes an approach for optimally integrating building-scale energy technologies (both traditional and renewable) to enhance the transformation of the existing buildings (often energetically inefficient) in low-carbon systems. The approach promotes a transition sustainable from both the economic and environmental perspectives. Both operation and design optimization are considered with the aim of suggesting the best set of capacity of the technologies to be installed taking into account the expected operations. The building-scale technologies are integrated with proper storage units: Li-ion batteries and thermal storage (latent heat, that requires low installation space). As a dispatchable renewable technology, a biogas small-scale combined heat and power unit is included in the system. Once the key role played by this component in meeting the loads is proved, an analysis of the impact of the cost of the primary energy carrier of this technology on the system design is carried out. Two optimization approaches have been adopted (both based on non-linear programming). Results show that operation costs can be reduced by up to 29%. The adoption of a combined approach that takes into account both operation and design optimization lead to a reduction in installation and operating costs by up to 27%. In the analyzed cases, the use of the combined optimization confirms that latent heat storage is more suitable to be installed than electric storage (about −4.5% cost).

scholarly journals Optimal Integration of Renewable Sources and Latent Heat Storages for Nearly Zero-Energy Buildings

Proceedings ◽  
2020 ◽  
Vol 58 (1) ◽  
pp. 35
Author(s):  
Elisa Guelpa ◽  
Giulia Mancò ◽  
Vittorio Verda
Keyword(s):  
Latent Heat ◽  
Renewable Energy Sources ◽  
Small Scale ◽  
Optimization Approach ◽  
Low Carbon ◽  
Zero Energy ◽  
Latent Heat Storage ◽  
Optimal Integration ◽  
Effective Manner ◽  
Zero Energy Buildings

A crucial way to reach a future sustainable society concerns the path towards nearly zero-energy buildings because of large amounts of energy at stake. The present work proposes an approach for the optimal integration of small-scale technologies (renewable and traditional) to enhance the pathway of existing and inefficient buildings towards low-carbon systems in a cost–benefit effective manner. Operation optimization, as well as an innovative combined design, is investigated with the goal of selecting the capacity of the technologies to be installed depending on the expected operations. The renewable technologies are integrated with proper storage units, such as batteries and latent thermal storage, which allows for reducing the space required for the installation. Two different non-linear programming approaches are used with the aim of finding an optimal solution. The optimization allows for reducing operation costs of 22% for renewable energy sources (RES)-fed dwellings. The combined operation and design optimization lead to a reduction in installation and operating costs by 7%. In the analyzed case, the adoption of the advanced optimization approach shows that latent heat storage is more suitable to be installed than electric storage (−2.5% cost).

Latent heat storage for hot beverages

2019 ◽  
Vol 13 (3) ◽  
pp. 5653-5664
Author(s):  
M. S. M. Al-Jethelah ◽  
H. S. Dheyab ◽  
S. Khudhayer ◽  
T. K. Ibrahim ◽  
A. T. Al-Sammarraie
Keyword(s):  
Latent Heat ◽  
Food Industry ◽  
Heat Storage ◽  
Food Storage ◽  
Thermal Engineering ◽  
Engineering Applications ◽  
Latent Heat Storage ◽  
The Impact ◽  
Encapsulated Phase Change Material ◽  
Change Material

Latent heat storage has shown a great potential in many engineering applications. The utilization of latent heat storage has been extended from small scales to large scales of thermal engineering applications. In food industry, latent heat has been applied in food storage. Another potential application of latent heat storage is to maintain hot beverages at a reasonable drinking temperature for longer periods. In the present work, a numerical calculation was performed to investigate the impact of utilizing encapsulated phase change material PCM on the temperature of hot beverage. The PCM was encapsulated in rings inside the cup. The results showed that the encapsulated PCM reduced the coffee temperature to an acceptable temperature in shorter time. In addition, the PCM maintained the hot beverage temperature at an acceptable drinking temperature for rational time.

scholarly journals Renewable Energy Sources as a Development Opportunity for Peripheral Areas

2020 ◽  
Vol 13 (2) ◽  
pp. 184-198
Author(s):  
Piotr Gradziuk ◽  
Barbara Gradziuk
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Peripheral Region ◽  
Energy Sources ◽  
Small Scale ◽  
Low Carbon ◽  
Renewable Sources ◽  
Low Carbon Economy ◽  
The Subject

SummarySubject and purpose of work: The subject of this analysis and evaluation is the use of renewable energy sources in Poland, particularly in the Lubelskie Voivodeship, as a peripheral region. The purpose of this paper is to identify the role and evaluate the scale and effects of using renewable energy sources (RES), as well as the availability and absorption of financial resources for RES promotion.Materials and methods: The data were obtained from the Office of the Ruda-Huta Commune, the Regional Operational Programme Department of the Marshal Office of the Lubelskie Voivodeship in Lublin and the Department of European Funds of the Ministry of Energy, as well as Statistics Poland (GUS) and the literature on the subject.Results: In Poland the proportion of energy from renewable sources to the total primary energy generated increased in 2012-2018 from 11.73% to 14.46%. A new phenomenon, which has been highly significant for the development of this sector, is the use of innovative, small-scale technologies of energy generation from renewable sources, which created the foundations for the growth of a citizens’ energy sector, based on the initiative of the citizens and their communities. The use of RES contributes to reduced expenditures on the purchase of energy carriers and constitutes an effective method of implementing plans for developing a low-carbon economy and reducing low-stack emissions.Conclusions: The continuing disparities between the regions point to the need for active structural intervention to maintain economic, social and territorial cohesion, particularly in areas which are considered peripheral and have a very low GDP per capita. One of the preferred directions should be to support the use of RES.

scholarly journals Solar thermoelectricity via advanced latent heat storage: A cost-effective small-scale CSP application

2017 ◽  
Author(s):  
G. C. Glatzmaier ◽  
J. Rea ◽  
M. L. Olsen ◽  
C. Oshman ◽  
C. Hardin ◽  
...  
Keyword(s):  
Latent Heat ◽  
Heat Storage ◽  
Cost Effective ◽  
Small Scale ◽  
Latent Heat Storage

scholarly journals Making a Case for Local Combined Head and Power and District Heating Infrastructures within the United Kingdom Policy Landscape

2019 ◽  
Vol 115 ◽  
pp. 02003
Author(s):  
Javier Urquizo ◽  
Carlos Calderón ◽  
Philip James
Keyword(s):  
Spatial Information ◽  
Local Level ◽  
District Heating ◽  
Spatial Modelling ◽  
Low Carbon ◽  
Distributed Energy ◽  
Energy Infrastructure ◽  
Low Carbon Economy ◽  
Energy Technologies ◽  
The Impact

Planning energy infrastructure at the local level is the key to addressing some of the most difficult challenges in climate change and energy policy planning (i.e. fuel poverty) and to unlock the transformative potential of distributed energy technologies. The scientific field of urban energy and carbon modelling is becoming a fundamental instrument to estimate an energy and carbon baseline at a point in time and to quantify the impact that policy-driven technological interventions that could have on the overall carbon footprint of a city. This capability enables an evidence-based approach in which the economic case towards a low-carbon economy can be made. Transformative local distributed energy technologies such as CHP or district heating have a strong spatial component due to a need to identify synergies with adjacent properties or heating loads. Currently available domestic building energy models often do not take into account spatial information. Accessing geo-referenced data for energy modelling can also be particularly useful as validated outputs (i.e. heating and electricity loads, energy profiles) can be mapped using spatial modelling techniques that help to easily identify high and low energy consumption areas and potential synergies in local energy infrastructure planning. In Newcastle upon Tyne UK, the council is exploring the opportunities for the installation of renewable heat technologies on their own stock as a matter of urgency. Identification of potential sites and feasibility for technical and financial applicability within the UK policies will be addressed by this paper.

Planheat Tool

2021 ◽  
pp. 84-105
Author(s):  
Matteo Porta
Keyword(s):  
Climate Change ◽  
Urban Areas ◽  
European Population ◽  
Low Carbon ◽  
Energy Technologies ◽  
Heating And Cooling ◽  
Collective Creativity ◽  
New Energy ◽  
Eu Project ◽  
The Impact

More than two thirds of the European population live in urban areas. Cities are places where both problems emerge and solutions are found. They are fertile ground for science and technology, for culture and innovation, for individual and collective creativity, and for mitigating the impact of climate change. Cities are communities where to study environmental, social, economic impact of new energy technologies. A tool to unlock the planning potential of EU cities has been developed thanks to the collaboration of different EU research centers, SMEs and consultancy firms led by Rina Consulting involved in Planheat EU Project (funded by the European Union's H2020 Programme under grant agreement 723757). PLANHEAT Consortium developed and validated an integrated and easy-to-use, GIS-based, and open source tool to support local authorities in selecting, simulating and comparing alternative low carbon and economically sustainable scenarios for heating and cooling.

scholarly journals From Covid “today” to low-carbon “tomorrow”: analysis of foreign forecasts for the development of world energy

Georesursy ◽  
2021 ◽  
Vol 23 (3) ◽  
pp. 45-52
Author(s):  
Alexey M. Mastepanov
Keyword(s):  
Primary Energy ◽  
Low Carbon ◽  
World Energy ◽  
The World ◽  
Global Economic Growth ◽  
Analytical Centers ◽  
The Impact ◽  
Made In

The article is devoted to the analysis of forecasts of the world energy development made recently (from September 2020 to May 2021) by the world’s leading analytical centers, taking into account “the new reality” – the coronavirus pandemic. The impact of the Covid-19 pandemic on the development of the world economy and energy consumption and the estimates of its consequences on long-term global economic growth made in various forecasts and prognostic studies are considered. It is shown that the priority of most of the prognostic estimates of the world consumption of primary energy resources made by the world’s leading analytical centers in recent years is a sharp reduction in CO2 emissions by energy and stabilization of global anthropogenic greenhouse gas emissions in order to prevent negative climate changes on our planet. A conditional classification of scenarios for the prospective development of global energy is given, depending on the ideology that is embedded in them, an analysis of the fulfilled forecasts is given. It is concluded that Russian research structures need to develop their own similar forecasts.

scholarly journals Introduction

2021 ◽  
pp. 3-7
Author(s):  
Dominik Möst ◽  
Steffi Schreiber ◽  
Martin Jakob
Keyword(s):  
Renewable Energy Sources ◽  
Energy System ◽  
Low Carbon ◽  
Technological Learning ◽  
Technology Plan ◽  
Energy Technologies ◽  
Policy Measures ◽  
Flexibility Options ◽  
Low Carbon Energy ◽  
The Impact

AbstractThe future energy system in Europe needs to be decarbonized and thus be based almost exclusively on renewable energy sources. Therefore it is challenged by the intermittent nature of renewables and requires several flexibility options. The interaction between different options and the impact on environment and society are in the focus of this contribution. It is the core objective of this book to analyze and evaluate the development toward a low-carbon energy system with focus on flexibility options in the EU to support the implementation of the Strategy Energy Technology Plan. The analyses are based on a bottom-up modeling environment that considers current and future energy technologies, policy measures and their impact on environment and society while considering technological learning of low-carbon and flexibility technologies.

Sign in / Sign up

Export Citation Format

Share Document