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Journal articles on the topic 'More efficient district cooling systems'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Passerini, Francesco, Raymond Sterling, Markus Keane, Krzysztof Klobut, and Andrea Costa. "Energy efficiency facets: innovative district cooling systems." Entrepreneurship and Sustainability Issues 4, no. 3 (2017): 310–18. https://doi.org/10.9770/jesi.2017.4.3S(6).

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Cooling demand in buildings is globally increasing, therefore developing more efficient cooling systems is important for the sustainability of European cities. Directive 2012/27/EU of the European Parliament and of the council on energy efficiency states: “Member States should carry out a comprehensive assessment of the potential for high-efficiency cogeneration and district heating and cooling”. The EU project INDIGO is investigating this issue considering also the economic efficiency and the use of renewable energy sources. In a district cooling system different kinds of cooling production c

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2

Al-Nini, Ahmed, Hamdan Haji Ya, Najib Al-Mahbashi, and Hilmi Hussin. "A Review on Green Cooling: Exploring the Benefits of Sustainable Energy-Powered District Cooling with Thermal Energy Storage." Sustainability 15, no. 6 (2023): 5433. http://dx.doi.org/10.3390/su15065433.

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This paper examines the economic and environmental impacts of district cooling systems (DCS) that are integrated with renewable energy sources and thermal energy storage (TES). Typically, a DCS offers a highly efficient and environmentally friendly alternative to traditional air conditioning systems, providing cool air to buildings and communities through a centralized system that uses chilled water. However, the integration of renewable energy and thermal energy storage into these systems can further increase their sustainability and efficiency, reducing their dependence on fossil fuels and i

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3

Spanodimitriou, Yorgos, Giovanni Ciampi, Luigi Tufano, Michelangelo Scorpio, and Sergio Sibilio. "Evaluating the Performance of Fixed 3D-Printed and Dynamic Fabric Modules in a Second-Skin Façade System: A Residential Case Study in Southern Italy at Building and District Scales." Buildings 15, no. 2 (2025): 189. https://doi.org/10.3390/buildings15020189.

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The building sector accounts for 30% of worldwide final energy usage and 26% of global energy-linked emissions. In construction, innovative materials and systems can offer flexible, lightweight, energy-efficient solutions to achieve more efficient buildings. This study addresses the energy analysis and environmental impacts of retrofitting residential buildings in Monterusciello, Italy, using an innovative second-skin façade system design that incorporates 3D-printed and fabric modules. The purpose is to enhance energy efficiency and reduce the environmental impact of residential buildings ori

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4

Hemmatabady, Hoofar, Julian Formhals, Bastian Welsch, Daniel Otto Schulte, and Ingo Sass. "Optimized Layouts of Borehole Thermal Energy Storage Systems in 4th Generation Grids." Energies 13, no. 17 (2020): 4405. http://dx.doi.org/10.3390/en13174405.

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Borehole thermal energy storage (BTES) systems are a viable option to meet the increasing cooling demand and to increase the sustainability of low-temperature district heating and cooling (DHC) grids. They are able to store the rejected heat of cooling cycles on a seasonal basis and deliver this heat during the heating season. However, their efficient practical implementation requires a thorough analysis from technical, economic and environmental points of view. In this comparative study, a dynamic exergoeconomic assessment is adopted to evaluate various options for integrating such a storage

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Moustakidis, Serafeim, Ioannis Meintanis, George Halikias, and Nicos Karcanias. "An Innovative Control Framework for District Heating Systems: Conceptualisation and Preliminary Results." Resources 8, no. 1 (2019): 27. http://dx.doi.org/10.3390/resources8010027.

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This paper presents a holistic innovative solution for the transformation of the current district heating and cooling systems to automated more efficient systems. A variety of technological advancements have been developed and integrated to support the effective energy management of future district heating and cooling sector. First, we identify and discuss the main challenges and needs that are in line with the EU objectives and policy expectations. We give an overview of the main parts that our solution consists of, with emphasis on the forecasting tools and an advanced control system that ad

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Månsson, Sara, Kristin Davidsson, Patrick Lauenburg, and Marcus Thern. "Automated Statistical Methods for Fault Detection in District Heating Customer Installations." Energies 12, no. 1 (2018): 113. http://dx.doi.org/10.3390/en12010113.

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In order to develop more sustainable district heating systems, the district heating sector is currently trying to increase the energy efficiency of these systems. One way of doing so is to identify customer installations in the systems that have poor cooling performance. This study aimed to develop an algorithm that was able to detect the poorly performing installations automatically using meter readings from the installations. The algorithm was developed using statistical methods and was tested on a data set consisting of data from 3000 installations located in a district heating system in Sw

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Kudela, Libor, Radomír Chýlek, and Jiří Pospíšil. "Efficient Integration of Machine Learning into District Heating Predictive Models." Energies 13, no. 23 (2020): 6381. http://dx.doi.org/10.3390/en13236381.

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Modern control strategies for district-level heating and cooling supply systems pose a difficult challenge. In order to integrate a wide range of hot and cold sources, these new systems will rely heavily on accumulation and much lower operating temperatures. This means that predictive models advising the control strategy must take into account long-lasting thermal effects but must not be computationally too expensive, because the control would not be possible in practice. This paper presents a simple but powerful systematic approach to reducing the complexity of individual components of such m

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Chicherin, Stanislav. "Evaluating Waste Heat Potential for Fifth Generation District Heating and Cooling (5GDHC): Analysis Across 26 Building Types and Recovery Strategies." Processes 13, no. 6 (2025): 1730. https://doi.org/10.3390/pr13061730.

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Efficient cooling and heat recovery systems are becoming increasingly critical in large-scale commercial and industrial facilities, especially with the rising demand for sustainable energy solutions. Traditional air-conditioning and refrigeration systems often dissipate significant amounts of waste heat, which remains underutilized. This study addresses the challenge of harnessing low-potential waste heat from such systems to support fifth-generation district heating and cooling (5GDHC) networks, particularly in moderate-temperate regions like Flanders, Belgium. To evaluate the technical and e

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9

Muhammad, Ikhwan Zamhuri, Hashim Haslenda, and Wai Shin Ho. "Optimal Design of Integrated Chiller Capacity with Ice Thermal Storage for Commercial Buildings through Cooling System Cascade Analysis." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 10, no. 2 (2020): 165–75. https://doi.org/10.35940/ijitee.B8301.1210220.

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Chilled water air conditioning system is used to supply cooling systems in large capacity for industrial processes and commercial buildings. Air conditioners contribute more than 60 percent of electricity consumption in buildings. District Cooling System (DCS) technology comprises a central chiller plant which provides advantage compared to local air conditioning system. It has higher efficiency, uses less power in system operation, allows more usable space in buildings, and can be operated with minimum manpower while handling same amount of cooling load. The integration of a chiller with ice

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10

Ilie, Adrian, and Ion Vişa. "Hybrid solar-biomass system for district heating." E3S Web of Conferences 85 (2019): 04006. http://dx.doi.org/10.1051/e3sconf/20198504006.

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The energy used in the built-up environment represents at least 40% of the total energy consumed, out of which, at least 60% is required for heating, cooling and domestic hot water (DHW). Within the European Union, more than 6,000 communities (i.e. over 9%) use district heating systems, the majority of which use the conversion of fossil fuels as a source of energy. This aspect, which is corroborated by the directives of the EU legislation on the use of renewable energy sources and energy performance, imposes the development of new solutions through which the existing district heating systems m

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11

Zamhuri, Muhammad Ikhwan, Haslenda Hashim, and Ho Wai Shin. "Optimal Design of Integrated Chiller Capacity with Ice Thermal Storage for Commercial Buildings through Cooling System Cascade Analysis." International Journal of Innovative Technology and Exploring Engineering 10, no. 2 (2020): 165–75. http://dx.doi.org/10.35940/ijitee.b8301.1210220.

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Chilled water air conditioning system is used to supply cooling systems in large capacity for industrial processes and commercial buildings. Air conditioners contribute more than 60 percent of electricity consumption in buildings. District Cooling System (DCS) technology comprises a central chiller plant which provides advantage compared to local air conditioning system. It has higher efficiency, uses less power in system operation, allows more usable space in buildings, and can be operated with minimum manpower while handling same amount of cooling load. The integration of a chiller with ice

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12

Abdur Rehman, Omais, Valeria Palomba, Andrea Frazzica, and Luisa F. Cabeza. "Enabling Technologies for Sector Coupling: A Review on the Role of Heat Pumps and Thermal Energy Storage." Energies 14, no. 24 (2021): 8195. http://dx.doi.org/10.3390/en14248195.

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In order to reduce greenhouse gas emissions, current and future energy systems need to be made more efficient and sustainable. This change can be accomplished by increasing the penetration of renewable energy sources and using efficient technologies in energy generation systems. One way to improve the operation of the whole energy system is through the generation and end-use sector coupling. Power-to-heat energy conversion and storage technologies, in this view, are enabling technologies that can help in balancing and improving the efficiency of both thermal and electric grids. In the present

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13

БАБЕНКО, ОЛЕКСІЙ, ДМИТРО СТЕПАНОВ та НАТАЛІЯ СТЕПАНОВА. "МОДЕЛЮВАННЯ ЕНЕРГОЕФЕКТИВНОСТІ ЖИТЛОВОЇ БУДІВЛІ ЗА УМОВ РІЗНИХ ДЖЕРЕЛ ТЕПЛОВОЇ ЕНЕРГІЇ". Herald of Khmelnytskyi National University. Technical sciences 337, № 3(2) (2024): 27–32. http://dx.doi.org/10.31891/2307-5732-2024-337-3-3.

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The paper presents the results of modeling the process of energy consumption in public, residential, and commercial buildings as a result of the use of various sources of thermal energy. Buildings with such energy sources as: a) a low-temperature gas boiler with a capacity of up to 120 kW for the needs of heat supply of a residential building and freon air conditioning systems for the needs of cooling the building; b) a gas condensing boiler with a thermal capacity of up to 120 kW with a temperature regime of 55/45°C for heat supply and freon air conditioning systems for cooling; c) reversible

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14

Guzzini, Alessandro, Marco Pellegrini, Edoardo Pelliconi, and Cesare Saccani. "Low Temperature District Heating: An Expert Opinion Survey." Energies 13, no. 4 (2020): 810. http://dx.doi.org/10.3390/en13040810.

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Among the available solutions for building heating and cooling, district heating (DH) and district cooling (DC) systems are considered some of the best options since they can ensure a better control of pollutant emissions and greater efficiency than individual systems. Nevertheless, improvements are needed to increase their sustainability and reliability. The so-called “low temperature district heating” (LTDH) concept has been introduced in recent years in an attempt (i) to reduce the distribution heat losses through a temperature decrease in the DH network, (ii) to favor the integration with

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15

Bliūdžius, Raimondas, Karolis Banionis, Edmundas Monstvilas, et al. "Analysis of Improvement in the Energy Efficiency of Office Buildings Based on Energy Performance Certificates." Buildings 14, no. 9 (2024): 2791. http://dx.doi.org/10.3390/buildings14092791.

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The article presents an analysis of changes in energy efficiency of new office buildings designed and constructed during the implementation period of the Energy Performance of Buildings Directive (2014–2024). Common criteria on energy efficiency were collected from Energy Performance Certificates (EPCs) and processed. The changes in final and primary energy for space heating, cooling and hot water production of certified office buildings were determined, and the improvements in buildings, their energy systems and energy sources were analysed. It was determined that buildings of Class C, design

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16

Suchocki, Tomasz. "Introduction to ORC–VCC Systems: A Review." Energies 18, no. 1 (2025): 171. https://doi.org/10.3390/en18010171.

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The increasing demand for sustainable energy solutions has spurred significant interest in cogeneration technologies. This study introduces a novel integrated organic Rankine cycle (ORC) and vapor compression cycle (VCC) system, specifically designed to enhance energy efficiency and reduce greenhouse gas emissions in industrial applications and district heating systems. The key innovation lies in the development of an advanced coupling mechanism that seamlessly connects the ORC and VCC, enabling more efficient utilization of low-grade heat sources. By optimizing working fluid selection and imp

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17

Khosravi, Milad, and Ahmad Arabkoohsar. "Thermal-Hydraulic Performance Analysis of Twin-Pipes for Various Future District Heating Schemes." Energies 12, no. 7 (2019): 1299. http://dx.doi.org/10.3390/en12071299.

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Future energy systems will come with a 100% share of renewable energy and high integration of energy systems. District heating and cooling systems will be undeniable parts of the future energy systems, as they pave the bed for high-efficiency, low cost, and clean production. District heating systems may come into a wide range of designs in the future. Currently, most of the world’s district heating systems are based on the third generation design while everything in this framework is on the verge of a transition to the fourth generation. A large number of technologies for the future district h

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18

Horvath, Balint, Maria Borocz, Sandor Zsarnoczai, and Csaba Fogarassy. "Long-term Green Innovation Opportunities Within the Hungarian District Heating Sector Towards 2030." YBL Journal of Built Environment 4, no. 1 (2016): 12–24. http://dx.doi.org/10.1515/jbe-2016-0002.

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Abstract Natural gas is still the primary input of the Hungarian heating and cooling systems, therefore it still makes most of the overheads. One of the main obstacles of a competitive district heating system is the public opinion which still considers this service more expensive than the traditional heating forms. According to the absolute numbers this assumption might be valid but from a more accurate economic perspective, heat production has more aspects to stress. Most people forget about the simple fact that the maintenance costs of natural gas based systems are rather outsourced to the c

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19

Mans, Michael, Tobias Blacha, Thomas Schreiber, and Dirk Müller. "Development and Application of an Open-Source Framework for Automated Thermal Network Generation and Simulations in Modelica." Energies 15, no. 12 (2022): 4372. http://dx.doi.org/10.3390/en15124372.

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District heating and cooling (DHC) networks, and in particular, the fifth generation of DHC networks, offer great potential in increasing the overall system efficiency and reducing CO2 emissions in the heating and cooling of urban districts. Due to the growing complexity of these energy systems, the use of new planning methods, such as the use of dynamic simulation models based on Modelica, becomes more important. However, especially with large, complex thermal networks, there is a high effort for manual model construction and parameterization. For this reason, we present a framework for autom

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20

Eze, Val Hyginus Udoka, Oonyu Robert, Nakitto Immaculate Sarah, John S. Tamball, Oparaocha Favour Uzoma, and Okafor O. Wisdom. "Transformative Potential of Thermal Storage Applications in Advancing Energy Efficiency and Sustainability." IDOSR JOURNAL OF APPLIED SCIENCES 9, no. 1 (2024): 51–64. http://dx.doi.org/10.59298/idosrjas/2024/1.8.9.295.

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This article highlights the instrumental role of thermal storage applications in addressing contemporary challenges related to energy efficiency and sustainability. The scope of these applications encompasses a diverse range of innovative solutions dedicated to capturing, storing, and effectively utilizing thermal energy. Notably, thermal storage systems emerge as crucial contributors to curbing energy consumption and mitigating greenhouse gas emissions, especially in critical sectors like heating, cooling, and industrial processes. A key revelation is the ongoing focus on materials such as ph

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21

Kang, Anneka, Ivan Korolija, and Dimitrios Rovas. "Modeling of Photovoltaic-Thermal District Heating with Dual Thermal Modes." Journal of Physics: Conference Series 2042, no. 1 (2021): 012090. http://dx.doi.org/10.1088/1742-6596/2042/1/012090.

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Abstract Solar photovoltaic thermal (PVT) collectors could be a competitive addition to district heating systems, particularly in areas with high energy density since they simultaneously produce electricity and heat whilst increasing the PV efficiency through cooling. This study presents a new Modelica PVT model, which is used together with EnergyPlus in a co-simulation setup to assess the technical feasibility of solar PVT district heating in new builds. The model has been applied to a block of 12 2-bedroom terraced houses with a 184m2 PVT array on the south facing side of the roof. It was id

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Agberegha, Larry Orobome, Peter Alenoghena Aigba, Solomon Chuka Nwigbo, et al. "Investigation of a Hybridized Cascade Trigeneration Cycle Combined with a District Heating and Air Conditioning System Using Vapour Absorption Refrigeration Cooling: Energy and Exergy Assessments." Energies 17, no. 6 (2024): 1295. http://dx.doi.org/10.3390/en17061295.

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The insufficiency of energy supply and availability remains a significant global energy challenge. This work proposes a novel approach to addressing global energy challenges by testing the supercritical property and conversion of low-temperature thermal heat into useful energy. It introduces a combined-cascade steam-to-steam trigeneration cycle integrated with vapour absorption refrigeration (VAR) and district heating systems. Energetic and exergetic techniques were applied to assess irreversibility and exergetic destruction. At a gas turbine power of 26.1 MW, energy and exergy efficiencies of

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23

S, S. Dorzhiev, A. Majorov V, G. Bazarova E, Singh Ahluwalia Paramvir, and I. Rosenblum M. "System for maintaining optimal temperature modes of solar power plants." Indian Journal of Science and Technology 14, no. 9 (2021): 826–42. https://doi.org/10.17485/IJST/v14i9.2184.

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Abstract <strong>Objectives:</strong> To ensure efficient operation of solar modules and temperature mode in accordance with standard test conditions range within 20-30◦C. <strong>Methods:</strong> A mathematical model was developed using the laws of photoelectricity, heat and mass transfer, which provides improvement in the efficiency of solar power plants. <strong>Findings:</strong> This study presents the theoretical analysis of different embodiment for systems of solar modules using physical and mathematical models. The main design and functional characteristics of

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Zheliezna, T. A., and A. I. Bashtovyi. "ANALYSIS OF WAYS FOR DECARBONIZATION OF THE EU HEATING SECTOR (REVIEW)." Thermophysics and Thermal Power Engineering 42, no. 4 (2020): 93–101. http://dx.doi.org/10.31472/ttpe.4.2020.11.

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The aim of the work is to analyze possible ways of decarbonization of the EU heat supply sector. The task of the work is to identify the most promising areas and develop appropriate recommendations for Ukraine. The heat supply sector of the EU and Ukraine needs decarbonization, for which there is a big potential and different areas of implementation of relevant measures. In Europe, such a strategy is set out in the Roadmap for decarbonization of the EU heating sector until 2050, the main provisions of which are in line with objectives of the European Green Deal and the EU Strategy on Heating a

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Qi, Haosheng, Qun Ouyang, and Lin Ma. "Application of artificial intelligence control in the control system of cooling and heating energy stations." Thermal Science 28, no. 2 Part B (2024): 1321–28. http://dx.doi.org/10.2298/tsci2402321q.

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In order to understand the application of artificial intelligence in the control system of cold and hot energy station, the author proposes a research based on artificial intelligence control in the control system of cooling and heating energy station. The author first introduces artificial intelligence technology on the basis of heating and precision heating, relies on the ?Internet plus? and IoT platform, applies indoor temperature measurement technology, intelligent control and information docking technology, and establishes a heating system based on artificial intelligence technology. This

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26

Kılkış, Birol, Malik Çağlar, and Mert Şengül. "Energy Benefits of Heat Pipe Technology for Achieving 100% Renewable Heating and Cooling for Fifth-Generation, Low-Temperature District Heating Systems." Energies 14, no. 17 (2021): 5398. http://dx.doi.org/10.3390/en14175398.

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This paper addresses the challenges the policymakers face concerning the EU decarbonization and total electrification roadmaps towards the Paris Agreement set forth to solve the global warming problem within the framework of a 100% renewable heating and cooling target. A new holistic model was developed based on the Rational Exergy Management Model (REMM). This model optimally solves the energy and exergy conflicts between the benefits of using widely available, low-temperature, low-exergy waste and renewable energy sources, like solar energy, and the inability of existing heating equipment, w

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27

Sougkakis, Vasileios, Konstantinos Lymperopoulos, Nikos Nikolopoulos, Nikolaos Margaritis, Paraskevi Giourka, and Komninos Angelakoglou. "An Investigation on the Feasibility of Near-Zero and Positive Energy Communities in the Greek Context." Smart Cities 3, no. 2 (2020): 362–84. http://dx.doi.org/10.3390/smartcities3020019.

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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 net

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28

Stankeviciute, Loreta, and Anna Krook Riekkola. "Assessing the development of combined heat and power generation in the EU." International Journal of Energy Sector Management 8, no. 1 (2014): 76–99. http://dx.doi.org/10.1108/ijesm-08-2012-0004.

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Purpose – This paper aims to quantify the potentials for the development of combined heat and power (CHP) in Europe. Design/methodology/approach – To this end, it uses the TIMES-EU energy-economic model and assesses the impact of key policy options and targets in the area of CO2 emissions reduction, renewable energies and energy efficiency improvements. The results are also compared with the cogeneration potentials as reported by the Member States in their national reports. Findings – The paper shows that CHP output could be more than doubled and that important CHP penetration potential exists

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Liu, Xiaodong, Weiyuan Wang, Hengjun Zhou, Gang Wu, and Yongjin Tao. "Research on Optimization of Regional Integrated Energy System Based on Thermal Inertia of Building Clusters." Journal of Physics: Conference Series 2195, no. 1 (2022): 012019. http://dx.doi.org/10.1088/1742-6596/2195/1/012019.

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Abstract With the increase in the share of energy from new energy sources such as photovoltaics and wind power, the development and application of integrated energy systems are becoming more and more rapid. However, if energy is not coordinated and optimized, wind and solar abandonment may occur. This is to achieve a variety of energy sources. The integration, complementarity and flexible regulation of the company have brought great challenges. The fifth-generation district heating and cooling system, as a new direction of comprehensive energy development, can greatly improve the energy effici

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Kaneesamkandi, Zakariya, Ateekh Ur-Rehman, and Yusuf Siraj Usmani. "Selection of Ideal MSW Incineration and Utilization Technology Routes Using MCDA for Different Waste Utilization Scenarios and Variable Conditions." Processes 11, no. 7 (2023): 1921. http://dx.doi.org/10.3390/pr11071921.

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Liability to prevent the consequences of an unhealthy situation due to accumulating toxic and hazardous emissions caused by open dumping of municipal solid waste with increasing urbanization has necessitated a renewed thinking on waste disposal. Grate-fired incineration systems were adopted by urban management in the past and present, but with criticism due to the formation of airborne emissions. Improved combustion methods like fluidized beds are now propagated because of current requirements like efficient energy recovery potential, stricter emission norms, adaptability with urban growth, ad

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Ahn, Barah, Vikram C. Patil, and Paul I. Ro. "Effect of Integrating Metal Wire Mesh with Spray Injection for Liquid Piston Gas Compression." Energies 14, no. 13 (2021): 3723. http://dx.doi.org/10.3390/en14133723.

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Heat transfer enhancement techniques used in liquid piston gas compression can contribute to improving the efficiency of compressed air energy storage systems by achieving a near-isothermal compression process. This work examines the effectiveness of a simultaneous use of two proven heat transfer enhancement techniques, metal wire mesh inserts and spray injection methods, in liquid piston gas compression. By varying the dimension of the inserts and the pressure of the spray, a comparative study was performed to explore the plausibility of additional improvement. The addition of an insert can h

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32

Pezzutto, Simon, Silvia Croce, Stefano Zambotti, Lukas Kranzl, Antonio Novelli, and Pietro Zambelli. "Assessment of the Space Heating and Domestic Hot Water Market in Europe—Open Data and Results." Energies 12, no. 9 (2019): 1760. http://dx.doi.org/10.3390/en12091760.

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The paper investigates the European space heating (SH) and domestic hot water (DHW) market in order to close knowledge gaps concerning its size. The stimulus for this research arises from incongruences found in SH and DHW market’s data in spite of over two decades of scientific research. The given investigation has been carried out in the framework of the Hotmaps project (Horizon 2020—H2020), which aims at designing an open source toolbox to support urban planners, energy agencies, and public authorities in heating and cooling (H&C) planning on country, regional, and local levels. Our rese

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Rämä, Miika, and Krzysztof Klobut. "Tools for Planning Energy Efficient District Systems." Proceedings 2, no. 15 (2018): 1132. http://dx.doi.org/10.3390/proceedings2151132.

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An open-source planning tool for the evaluation district cooling systems is developed within project INDIGO. The tool is based on optimisation model consisting of a defined set of components in a district cooling (DC) system. The approach links up the whole energy chain from consumption to resources achieve an optimal solution. The tool will enable assessment on effects of single components on a system level and provide data for comparison from energy efficiency, economic feasibility and the climate impact point of view. Life cycle assessment (LCA) framework will be utilised as a method for bo

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Rämä, Miika, and Krzysztof Klobut. "Tools for Planning Energy Efficient District Systems." Proceedings Volume 2, no. 15 (2018): 1132. https://doi.org/10.3390/proceedings2151132.

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An open-source planning tool for the evaluation district cooling systems is developed within project INDIGO. The tool is based on optimisation model consisting of a defined set of components in a district cooling (DC) system. The approach links up the whole energy chain from consumption to resources achieve an optimal solution. The tool will enable assessment on effects of single components on a system level and provide data for comparison from energy efficiency, economic feasibility and the climate impact point of view. Life cycle assessment (LCA) framework will be utilised as a method f

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35

Shi, Zhongming, Shanshan Hsieh, Jimeno A. Fonseca, and Arno Schlueter. "Street grids for efficient district cooling systems in high-density cities." Sustainable Cities and Society 60 (September 2020): 102224. http://dx.doi.org/10.1016/j.scs.2020.102224.

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Huber, David, Viktoria Illyés, Veronika Turewicz, Gregor Götzl, Andreas Hammer, and Karl Ponweiser. "Novel District Heating Systems: Methods and Simulation Results." Energies 14, no. 15 (2021): 4450. http://dx.doi.org/10.3390/en14154450.

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Fifth-generation district heating and cooling (5th DHC) systems offer promising approaches to decarbonizing space heating, cooling and domestic hot water supply. By using these systems, clustered buildings combined with industrial waste heat can achieve a net-zero energy balance on a variety of time scales. Thanks to the low exergy approach, these systems are highly efficient. As part of the Smart Anergy Quarter Baden (SANBA) project, the thermal energy grid simulation tool TEGSim has been further developed and used to design an ultra-low-temperature district heating (ULTDH) network with hydra

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Ivančić, Aleksandar, Joaquim Romaní, Jaume Salom, and Maria-Victoria Cambronero. "Performance Assessment of District Energy Systems with Common Elements for Heating and Cooling." Energies 14, no. 8 (2021): 2334. http://dx.doi.org/10.3390/en14082334.

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District energy systems, especially those integrating renewables or low exergy sources, have multiple elements for generating heating and cooling. Some of these elements might be used for both purposes: heating and cooling, either simultaneously or alternatively. This makes it more complex to separate the assessment and have a clear picture on performance of cooling service on one side, and heating services on the other, in terms of energy, environmental, and economic results. However, a correct comparison between different district energy configurations or among district energy and convention

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Takash, Ahmad Al, Razan El Kassar, Adie Msadi, Assadour Khanajian, and Youssef Abbani. "Overheating in Residential Solar Systems: Towards Efficient Cooling SolutionOverheating in Residential Solar Systems: Towards Efficient Cooling Solution." International Journal of Smart Grid and Clean Energy 13, no. 3 (2024): 94–104. http://dx.doi.org/10.12720/sgce.13.3.94-104.

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As the worldwide demand for solar renewable energy continues to rise, researchers have consistently aimed to create cost-effective, high-efficiency solar cells. They are aware that elevated panel temperatures can result in reduced conversion efficiency and diminished long-term dependability, presenting a familiar challenge within the photovoltaics industry. This project is divided into two main studies related to Photovoltaic (PV) panels overheating and cooling systems. The first study focused on investigating the effect of high ambient temperature on the efficiency of solar system, theoretica

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Jangsten, Maria, Torbjörn Lindholm, and Jan-Olof Dalenbäck. "Field test of active night cooling supplied by district cooling in three commercial buildings." E3S Web of Conferences 246 (2021): 11004. http://dx.doi.org/10.1051/e3sconf/202124611004.

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Several previous studies have investigated active night cooling strategies to reduce the peak cooling load in buildings, primarily by precooling the building by the ventilation air during the night. In this study, active night cooling is supplied by the use of district cooling, mainly for cooling buildings by hydronic cooling systems, such as chilled beam or fan coil systems, but potentially also to cool the ventilation air if the outdoor air temperature is above the supply air temperature setpoint. A field test with active night cooling by district cooling was conducted during the summer of 2

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Wyrwa, Artur, Maciej Raczyński, Maciej Kulik, et al. "Greening of the District Heating Systems—Case Study of Local Systems." Energies 15, no. 9 (2022): 3165. http://dx.doi.org/10.3390/en15093165.

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The integration of renewable energy resources into district heating systems is gaining momentum across Europe, as heat producers are expected to work towards the EU Directive of Efficient District Heating and Cooling to achieve carbon neutrality by 2050. This paper studies the techno-economic implications of transforming conventional district heating systems of six locations in Poland, generating 8.5 PJ of heat annually, into sustainable and efficient district heating systems. These new systems consist of flat solar collectors integrated with seasonal pit thermal energy storages and gas heatin

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Wyrwa, Artur, Maciej Raczyński, Maciej Kulik, et al. "Greening of the District Heating Systems—Case Study of Local Systems." Energies 15, no. 9 (2022): 3165. http://dx.doi.org/10.3390/en15093165.

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The integration of renewable energy resources into district heating systems is gaining momentum across Europe, as heat producers are expected to work towards the EU Directive of Efficient District Heating and Cooling to achieve carbon neutrality by 2050. This paper studies the techno-economic implications of transforming conventional district heating systems of six locations in Poland, generating 8.5 PJ of heat annually, into sustainable and efficient district heating systems. These new systems consist of flat solar collectors integrated with seasonal pit thermal energy storages and gas heatin

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Mugnini, Alice, Gianluca Coccia, Fabio Polonara, and Alessia Arteconi. "Potential of District Cooling Systems: A Case Study on Recovering Cold Energy from Liquefied Natural Gas Vaporization." Energies 12, no. 15 (2019): 3027. http://dx.doi.org/10.3390/en12153027.

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District cooling systems (DCSs) are networks able to distribute thermal energy, usually as chilled water, from a central source to industrial, commercial, and residential consumers, to be used for space cooling/dehumidification. As cooling demand will increase significantly in the next decades, DCSs can be seen as efficient solutions to improve sustainability. Although DCSs are considered so relevant for new city developments, there are still many technical, economic, and social issues to be overcome to let such systems to spread out. Thus, this paper aims to highlight the advantages and issue

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Vinod, Kumar Verma. "Water-Efficient Air-Cooling Systems: Engineering Sustainable Climate Control." International Journal for Research Trends and Innovation 6, no. 3 (2021): 233–39. https://doi.org/10.5281/zenodo.11941302.

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An air cooler is an appliance that cools the atmosphere by utilizing a medium that can handle and transport heat more efficiently than air. Water, with its excellent heat retention properties while remaining in liquid form, serves as this medium. This research aims to design and develop a low water-consuming cooler suitable for homes, offices, and industrial areas. Conventional coolers operate on the principle of evaporation, leading to significant water loss over time. However, our research employs the principle of convective heat transfer, conserving water by recirculating cold water through

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Raza, Tahir, Muttahira Maryam, and Fatima Haroon. "Optimizing Energy Efficiency: An Integrated Life Cycle Costing Approach for Centralized Cooling Plants." Journal of Business Administration and Management Sciences (JOBAMS) 5, no. 2 (2023): 94–100. http://dx.doi.org/10.58921/jobams.5.2.113.

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Gas District Cooling (GDC) is an emerging technology utilizing natural gas-based systems for efficient district-scale cooling. This study develops a comprehensive Life Cycle Costing (LCC) model integrating capital expenditure (CAPEX) and operational expenditure (OPEX) for Thermal Energy Storage (TES) and Electrical Chillers (ECs) within GDC plants. Validated through a case study at an academic institute's GDC plant in Malaysia, the model assesses breakeven scenarios, revealing that project feasibility is optimal under case-II conditions, emphasizing the importance of operational efficiency for

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Kılıç, Muhsin. "Evaluation of Combined Thermal‒Mechanical Compression Systems: A Review for Energy Efficient Sustainable Cooling." Sustainability 14, no. 21 (2022): 13724. http://dx.doi.org/10.3390/su142113724.

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The aim of this study is to assess the state-of-the-art situation of mechanical compressors with thermal compressor systems in combined cooling systems and their ability to provide the required cooling effects with lower energy consumption than traditional cooling systems. The integrated systems have various advantages such as a broad temperature range, low energy consumption, and more flexibility in operating conditions. A comprehensive review of thermal‒mechanical combined cooling systems is presented in terms of its principles, applications, different configurations, and various heat source

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Cui, Mengying, Jing Ren, Meng Su, and Jiying Liu. "Performance analysis of the different radiant floor cooling systems in the office building in Shandong province, China." E3S Web of Conferences 356 (2022): 01047. http://dx.doi.org/10.1051/e3sconf/202235601047.

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Radiant cooling systems have good application prospects. A variety of composite radiative cooling systems have been proposed to save energy, but few studies have focused on comparing the performance of different radiant floor cooling systems. This study compares the cooling performance operating conditions of a floor radiant system with direct ground cooling and conventional radiant cooling systems. In addition to the comfort conditions required by the standard, Jinan, Shandong also studied the low risk of condensation on the floor surface. At the same time, the energy consumption of different

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Shi, Zhongming, Jimeno A. Fonseca, and Arno Schlueter. "Floor area density and land uses for efficient district cooling systems in high-density cities." Sustainable Cities and Society 65 (February 2021): 102601. http://dx.doi.org/10.1016/j.scs.2020.102601.

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Shi, Zhiyuan, Hongxin Wei, Guanghui Li, et al. "Research and Analysis of Explosion-Proof Diesel Engine Performance Based on Different Exhaust Gas Cooling Systems." Energies 18, no. 3 (2025): 610. https://doi.org/10.3390/en18030610.

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As stringent emission regulations and safety standards for explosion-proof diesel engines become more critical, the demand for efficient exhaust cooling systems has increased. Traditional cooling systems, typically relying on cooling and purification water tanks, have limitations in terms of safety, performance, and emissions control. To address these challenges, a novel dry exhaust gas cooling system was developed, incorporating a heat exchanger and exhaust dilution cooling device, replacing the conventional water-based cooling systems. This study explores the performance of the dry exhaust g

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Qaroğlan qızı Quliyeva, Nərmin. "Study of the opportunity of using technical water supply systems at Thermal Power Plants in accordance with the climatic conditions of Azerbaijan." SCIENTIFIC WORK 65, no. 04 (2021): 244–48. http://dx.doi.org/10.36719/2663-4619/65/244-248.

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Given that the required amount of technical water supply causes environmental problems and is one of the problems of global warming, as well as reducing the amount of water in rivers and water basins, we can achieve a more environmentally efficient cooling system by switching from traditional to closed indoor cooling systems of the thermal power plants. Thus we can use water more efficiently in accordance with climatic conditions. Key words: thermal power plants, closed systems, cooling systems, evaporation, technical water supply, cycle

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Urbanucci, Testi, and Bruno. "Integration of Reversible Heat Pumps in Trigeneration Systems for Low-Temperature Renewable District Heating and Cooling Microgrids." Applied Sciences 9, no. 15 (2019): 3194. http://dx.doi.org/10.3390/app9153194.

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District heating and cooling networks based on trigeneration systems and renewable energy technologies are widely acknowledged as an energy efficient and environmentally benign solution. These energy systems generally include back-up units, namely fossil-fuel boilers and electric chillers, to enhance system flexibility and cover peak energy demand. On the other hand, 4th generation district heating networks are characterized by low-temperature water distribution to improve energy and exergy efficiencies. Moreover, reversible heat pumps are a versatile technology, capable of providing both heat

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