Solar Thermal Based New and Renewable Energy Hybrid System for the District Heating and Cooling in South Korea

2017 ◽  
Author(s):  
Jaehyeok Heo ◽  
Min-Hwi Kim
Keyword(s):  
Renewable Energy ◽  
South Korea ◽  
Hybrid System ◽  
District Heating ◽  
Solar Thermal ◽  
Heating And Cooling

scholarly journals Renewable Heating and Cooling Solutions for Buildings and Industry

Proceedings ◽  
2020 ◽  
Vol 65 (1) ◽  
pp. 16
Author(s):  
Andrea Frazzica ◽  
Régis Decorme ◽  
Marco Calderoni ◽  
Alessandra Cuneo ◽  
Zuzana Taťáková ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Heat Pump ◽  
Solar Thermal ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Heating And Cooling ◽  
Common Strategy ◽  
Selection Of

This workshop brought together a selection of H2020 EU-funded projects involving experts from the biomass, geothermal, solar thermal, and heat pump sectors to discuss a common strategy for increasing the use of renewable energy technologies for heating and cooling for buildings and industry.

scholarly journals Thermo-economic and environmental analysis of integrating renewable energy sources in a district heating and cooling network

2019 ◽  
Vol 13 (1) ◽  
pp. 79-100 ◽  
Author(s):  
Muhammad Asim ◽  
Saad Saleem ◽  
Muhammad Imran ◽  
Michael K. H. Leung ◽  
Syed Asad Hussain ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Environmental Analysis ◽  
Renewable Energy Sources ◽  
District Heating ◽  
Energy Sources ◽  
Heating And Cooling

scholarly journals An Investigation on the Feasibility of Near-Zero and Positive Energy Communities in the Greek Context

Smart Cities ◽  
2020 ◽  
Vol 3 (2) ◽  
pp. 362-384 ◽  
Author(s):  
Vasileios Sougkakis ◽  
Konstantinos Lymperopoulos ◽  
Nikos Nikolopoulos ◽  
Nikolaos Margaritis ◽  
Paraskevi Giourka ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Pump Energy ◽  
District Heating ◽  
Energy Performance ◽  
Positive Energy ◽  
Zero Energy ◽  
Geothermal Heat ◽  
Energy Technologies ◽  
Heating And Cooling ◽  
Geothermal Heat Pump

Near Zero Energy and Positive Energy communities are expected to play a significant part in EU’s strategy to cut greenhouse gas emissions by 2050. Within this context, the work presented in this paper aims to investigate the feasibility of: (a) a new-built positive energy neighborhood; and (b) the retrofit of an existing neighborhood to near zero energy performance in the city of Alexandroupolis, Greece. Proposed measures involve the rollout at the community scale of renewable energy technologies (PV, geothermal heat pump), energy efficiency (fabric insulation, district heating and cooling networks) and storage systems (batteries). A parametric analysis is conducted to identify the optimum combination of technologies through suitable technical and financial criteria. Results indicate that zero and near zero emissions targets are met with various combinations that impose insulation levels, according to building regulations or slightly higher, and consider renewable energy production with an autonomy of half or, more commonly, one day. In addition, the advantages of performing nearly zero energy retrofit at the district, rather than the building level, are highlighted, in an attempt to stimulate interest in community energy schemes.

scholarly journals SEAMS: an alternative techno-economic system to foster the sustainable development of renewable energy use in urban areas

2021 ◽  
Vol 2042 (1) ◽  
pp. 012087
Author(s):  
D Bourguignon ◽  
P Crépeaux ◽  
F Adam
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Economic System ◽  
Urban Areas ◽  
Energy Use ◽  
District Heating ◽  
Building Blocks ◽  
Economic Systems ◽  
The Sustainable Development ◽  
Heating And Cooling

Abstract To foster the sustainable development of renewable energy use in urban areas, we define an alternative, reciprocity-based, techno-economic system named SEAMS (“sharing energy amongst adjacent buildings”). We demonstrate its relevance through a statistical analysis of linear heat density across coastal cities from Northwestern mainland France, and a comparison of four implementations of three techno-economic systems within the perimeter of two adjacent building blocks, located in the city center of Lorient (Brittany). The SEAMS approach promises to address the multidimensional fragility issues currently surfacing with the conventional, market-based or redistribution-based, techno-economic systems, namely electricity and gas networks (EGN) or district heating and cooling networks (DHCN).

scholarly journals SWOT analysis of ST integration in DHC systems

2020 ◽  
Author(s):  
Paolo Leoni ◽  
Ralf-Roman Schmidt ◽  
Roman Geyer ◽  
Patrick Reiter
Keyword(s):  
Swot Analysis ◽  
District Heating ◽  
Global Scale ◽  
Solar Thermal ◽  
Heat Sources ◽  
Heating And Cooling ◽  
Operation Costs ◽  
Almost Everywhere ◽  
Systemic Level

Solar thermal (ST) energy is one of the few renewable heat sources that is available almost everywhere and can bring multiple benefits to district heating and cooling (DHC) networks (on an environmental and systemic level) with very low operation costs and risks. However, the current share of ST in DHC networks is almost zero on a global scale.

scholarly journals Parametric Study of a Long-Duration Energy Storage Using Pumped-Hydro and Carbon Dioxide Transcritical Cycles

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4401
Author(s):  
Paul Byrne ◽  
Pascal Lalanne
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Energy Storage ◽  
Parametric Study ◽  
District Heating ◽  
Energy Transition ◽  
Present System ◽  
Water Displacement ◽  
Heating And Cooling ◽  
Rock Cavern

The urgent energy transition needs a better penetration of renewable energy in the world’s energy mix. The intermittency of renewables requires the use of longer-term storage. The present system uses water displacement, in a lined rock cavern or in an aerial pressurised vessel, as the virtual piston of compressor and expander functions in a carbon dioxide heat pump cycle (HPC) and in an organic transcritical cycle (OTC). Within an impermeable membrane, carbon dioxide is compressed and expanded by filling and emptying pumped-hydro water. Carbon dioxide exchanges heat with two atmospheric thermal storage pits. The hot fluid and ice pits are charged by the HPC when renewable energy becomes available and discharged by the OTC when electricity is needed. A numerical model was built to replicate the system’s losses and to calculate its round-trip efficiency (RTE). A subsequent parametric study highlights key parameters for sizing and optimisation. With an expected RTE of around 70%, this CO2 PHES (pumped-hydro electricity storage) coupled with PTES (pumped thermal energy storage) could become a game-changer by allowing the efficient storage of intermittent renewable energy and by integrating with district heating and cooling networks, as required by cities and industry in the future.

scholarly journals Techno-economic comparison of the collected examples

2020 ◽  
Author(s):  
Paolo Leoni
Keyword(s):  
Network Analysis ◽  
Best Practice ◽  
District Heating ◽  
The Other ◽  
Solar Thermal ◽  
Heating And Cooling ◽  
Economic Comparison

Subtask A “Network analysis and integration” focuses on the overall aspects of district heating and cooling networks with integrated solar thermal (ST) technologies. Particularly important are the cases in which the solar share is such to significantly influence the operation of the network and the other heat/cold supply units. In the present factsheet, the best-practice examples collected in the factsheet A-D1.1 are analyzed and compared.

scholarly journals The future of DH and the role of solar thermal energy

2020 ◽  
Author(s):  
Ralf-Roman Schmidt ◽  
Paolo Leoni ◽  
Hamid Aghaie
Keyword(s):  
District Heating ◽  
Global Scale ◽  
Solar Thermal ◽  
Heat Sources ◽  
Solar Thermal Energy ◽  
Heating And Cooling ◽  
Operation Costs ◽  
Almost Everywhere ◽  
Systemic Level

Solar thermal (ST) energy is one of the few renewable heat sources that is available almost everywhere and can bring multiple benefits to district heating and cooling (DHC) networks (on an environmental and systemic level) with very low operation costs and risks. However, the current share of ST in DHC networks is almost zero on a global scale.

scholarly journals Analysis of District Heating and Cooling Energy Systems in Spain: Resources, Technology and Management

2021 ◽  
Vol 13 (10) ◽  
pp. 5442
Author(s):  
Beatriz María Paredes-Sánchez ◽  
José Pablo Paredes ◽  
Natalia Caparrini ◽  
Elena Rivo-López
Keyword(s):  
Renewable Energy ◽  
Energy Conversion ◽  
Thermal Energy ◽  
Renewable Energy Sources ◽  
District Heating ◽  
Energy Transition ◽  
Energy Sources ◽  
Total Production ◽  
District Heating System ◽  
Heating And Cooling

District heating and cooling (DHC) systems play an important role under the new European Union (EU) energy transition strategy. Thermal energy networks are helping to stimulate the development of alternative technologies based on a broad range of renewable energy sources. The present study analysed the current situation of DHC systems in Spain and provides an overview of the challenges and future opportunities that their use will entail. Its objective is to assess thermal energy conversion and management from a holistic perspective, including a study of existing energy infrastructures. The focus of this study lies on Spain given the country’s abundance of natural resources such as renewable energy sources including solar energy, biomass and geothermal energy, among others, as well as its strategic location on the map of the EU. Based on the analysis of the three factors for energy conversion in a district heating system, namely resources, technology, and management, the methodology provided an assessment of the different factors involved in running a DHC system. The results show an estimated total production for DHC networks of 1448 MWth, of which 72% is supplied purely by renewable energy sources.

scholarly journals Report on a Plus-Energy District with Low-Temperature DHC Network, Novel Agrothermal Heat Source, and Applied Demand Response

2019 ◽  
Vol 9 (23) ◽  
pp. 5059 ◽  
Author(s):  
Marcus Brennenstuhl ◽  
Robin Zeh ◽  
Robert Otto ◽  
Ruben Pesch ◽  
Volker Stockinger ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Low Temperature ◽  
Demand Response ◽  
Waste Heat ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
District Heating ◽  
Conventional Heating ◽  
Energy Sources ◽  
Heating And Cooling

District heating and cooling networks can pose the possibility of including a variety of renewable energy sources as well as waste heat into a district’s heat supply concept. Unfortunately, low demand densities as they increasingly occur through higher building energy standards and in rural areas render conventional heating and cooling networks inefficient. At the same time, power-to-heat is becoming more and more important to make use of a larger amount of renewable energy sources on the electrical side by providing more flexibility by means of demand response and demand-side management. Within this work, a rural Plus-Energy settlement is presented addressing those topics by a low-temperature district heating and cooling network connected to a novel agrothermal collector supplying 23 residential buildings with decentralized heat pumps and PV systems. The collector, the network, and six of the buildings are equipped with comprehensive monitoring equipment. Within those buildings, forecast and optimization algorithms are implemented to adapt their heat pump operation to enable an increase of self-consumption, to include flexible electricity tariffs, and also to participate in power markets. Thereby, for the low-temperature district heating and cooling network, it has been shown that the concept can operate in the future at competitive heat costs. On the building level, up to 50% of cost savings could be achieved under ideal conditions with the optimization of the self-consumption of PV electricity. However, to ensure optimal results, the individual system components have to be dimensioned for this task.

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