Optimal Planning of Future District Heating Systems—A Review

Jiang, Mengting; Rindt, Ccm Camilo; Smeulders, David

doi:10.3390/en15197160

Cited by 17 publications

(7 citation statements)

References 202 publications

(272 reference statements)

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“…The classification of DH networks is described in scientific articles such as [5], [7]. Majority of the existing DH networks can be grouped under 3 rd Generation DH technology, with supply temperature less than 100 °C [9]. To minimize the losses and operational cost, the recent development in DH sector is focused on low-temperature district heating (LTDH) networks.…”

Section: Solar Energy Utilisation In Dhc Sectormentioning

confidence: 99%

“…The selection of solar energy technology depends on several factors, predominantly the applied context (heating/ cooling), project objective, area availability, operating temperature etc. [9]. The different possibilities of solar energy utilization in DHC sector are shown in Fig.…”

Section: Solar Energy Utilisation In Dhc Sectormentioning

confidence: 99%

“…Averfalk et al, reviewed the operational aspects of large-scale heat pumps (HP) in district heating systems for the Swedish context and the major conclusions were HP's long-term continuous operation (>30 years), the importance of resilient heat sources, and fluctuations in electricity market ____________________________________________________________________________ 2023 / 27 price [8]. After reviewing different aspects on planning future DH systems such as methodology for a high-quality heat atlas, technical barriers for the RE integration, various system configurations, and common upgradation strategies, Jiang et al, concluded that design/ planning professionals will be challenged by the selection of suitable heat sources, sizing of various components (thermal & electrical) and the optimization of the control strategy/spatial layout [9]. Within the DHC topic, there are some review articles focused on the integration of solar technology.…”

Section: Introductionmentioning

confidence: 99%

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Overview of Solar Photovoltaic Applications for District Heating and Cooling

Sukumaran,

Laht,

Volkova

2023

Environmental and Climate Technologies

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With the prevalent energy crisis and climate changes, decarbonising energy sector has become the need of the hour. An environmentally friendly way is the utilisation of solar energy which mainly involves the deployment of photovoltaic (PV) and/or solar thermal technology. Unlike electricity generation, the application of photovoltaics for the district heating & cooling (DHC) is relatively new. Also, this energy route is yet to be fully explored. This paper aims to provide an overview of the photovoltaic applications in the context of DHC sector. At first, the utilisation of solar energy in the DHC sector is briefly described and then the review of the available literature is carried out. It was understood that PV integration in the district heating and/or district cooling system can take place in different topologies such as PV technology, energy storage, and system configuration (centralized/distributed). On one side, this technology options support design flexibility based on local scenarios (i.e., climatic conditions, building types, energy cost). On the other side, selecting the best configuration remains a challenging task for design and planning engineers. The research database on the studied topic needs to be enhanced, with a focus on PV’s role in district cooling (DC). It is deduced that right technical and economic boundary conditions in the chosen region is important for the accelerated photovoltaic integration. Also, lower environmental impact throughout the whole life cycle of solar PV integrated DHC system is reported. PV assisted DC systems have the potential to revolutionize cooling sector, especially in the places where daytime electricity costs are high. Based on the SWOT analysis, it is concluded that there is an enormous opportunity for PV integration in the DHC sector with the upgradations in DH networks, developing DC networks and rising adoption of HPs. This overview is expected to be beneficial to researchers, policymakers and other stakeholders of district energy sector.

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Section: Solar Energy Utilisation In Dhc Sectormentioning

confidence: 99%

Section: Solar Energy Utilisation In Dhc Sectormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Overview of Solar Photovoltaic Applications for District Heating and Cooling

Sukumaran,

Laht,

Volkova

2023

Environmental and Climate Technologies

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“…The involvement and market potential of new technologies and technology coupling in order to improve the profitability of thermal enterprises and the development of renewable energy sources were revised in [25]. The optimal planning of future district heating systems has been taken up in [26]. The authors of [27] provide crucial recommendations for design and construction approaches for the fourth generation (4GDH) systems as well as a critical analysis of the obstacles to reduce temperature levels and the causes of excessive return temperatures in current third generation (3GDH) systems.…”

Section: Introductionmentioning

confidence: 99%

Challenges for District Heating in Poland

Talarek¹,

Knitter-Piątkowska²,

Garbowski³

2023

Preprint

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Currently, the district heating (DH) in Poland is facing many challenges. The business model used hitherto was very simple—in most cities, heating plants produced heat, and centralized heating systems supplied the "product" at a price approved annually by the president of the Energy Regulatory Office (URE). However, recent years have brought significant changes on the market. EU regulations force the elimination of old coal-fired plants that were still built in the Polish People's Republic (PRL), moreover, high prices of CO2 emission allowances aggravate the financial situation of companies. In addition, in the heating sector, the trend observed in the power sector is becoming increasingly visible—limiting the role of large sources in favor of energy generated locally, closer to the customer. One of the biggest challenges is achieving the targets set by the EU for the share of renewable energy sources (RES) in the heating sector. The war in Ukraine and problems with the supply of coal and gas are an additional impulse to turn to RES. Thus, the development of sustainable and innovative solutions for energy production and supply at the level of urban networks is currently one of the main technical challenges. The purpose of the paper is to present the current situation and perspectives of development of district heating systems in Poland with a view to the status of district heating in the world, and some deeper insight into European conditions. The review presents energy sources with particular emphasis on renewable energy sources (RES) and their cogeneration for heat production. The examples of existing heating network solutions using renewable energy sources, based on the selected published case studies, are also discussed.

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“…In [41,42,49], 5 GDHС systems do not relate to the evolutionary development of the previous four generations of heating systems, because there are significant disparities in the structure and composition of sources, where electric heat plays a major role. The latter creates additional loads on electrical networks and increases the risks of power supply disruption.…”

mentioning

confidence: 99%

Approach to Modernizing Residential-Dominated District Heating Systems to Enhance Their Flexibility, Energy Efficiency, and Environmental Friendliness

Boyko,

Byk,

Ilyushin

et al. 2023

Applied Sciences

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The need to modernize existing district heating systems is due to increased requirements for their flexibility, energy efficiency, and environmental friendliness. The technical policy on district heating pursued in different countries centers on the listed goals and takes account of historical, climatic, and regional features of the resource, technology, and economic availability of various thermal energy sources. This study aims to analyze methods designed to improve the flexibility, energy efficiency, and environmental friendliness of district heating systems. The focus of the study is district heating system, which provides heating and hot water supply to consumers and consists of various types of thermal energy sources. The work shows the possibility for the heating system to transition from the third generation to the fourth one, which differ in their level of intellectualization. The establishment of an intelligent control system will ensure the interaction of various heat sources, but this is a separate strand of research. In this study, a model and a methodology were developed to optimize the structure of thermal energy sources and their operating conditions when covering the heat load curve of a territory with a predominance of household consumers. Gas-reciprocating and gas-turbine cogeneration plants are considered as the main thermal energy sources, whose efficiency is boosted through their joint operation with electric boilers, thermal energy storage systems, low-grade heat sources, and absorption chillers. The primary emphasis of the study is on the assessment of the environmental benefit to be gained by using cogeneration plants as a factor of enhancing the investment appeal of the district heating systems. The findings suggest that the transition of district heating systems to the next generation is impossible without changing the institutional environment, strengthening the role of active consumers, and introducing intelligent control for district heating systems.

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Optimal Planning of Future District Heating Systems—A Review

Cited by 17 publications

References 202 publications

Overview of Solar Photovoltaic Applications for District Heating and Cooling

Overview of Solar Photovoltaic Applications for District Heating and Cooling

Challenges for District Heating in Poland

Approach to Modernizing Residential-Dominated District Heating Systems to Enhance Their Flexibility, Energy Efficiency, and Environmental Friendliness

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