District heating systems based on low-carbon energy technologies in Mediterranean areas

Lizana, Jesús; Ortíz, C.; Soltero, Víctor M.; Chacartegui, Ricardo

doi:10.1016/j.energy.2016.11.096

Cited by 54 publications

(20 citation statements)

References 40 publications

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“…Felipe Andreu et al [26] did an estimation of the solar heat cost for central solar heating plant with pit thermal seasonal storage based on the condition of Velika Gorica. It was highlighted that solar district heating system with underground thermal energy storage, supported by biomass energy, is an interesting technology for implementation in the Mediterranean's low-to-medium population density areas [27]. Similar findings were shown for Mediterranean climate regions that in the reference [28].…”

supporting

confidence: 54%

Large-scale solar district heating plants in Danish smart thermal grid: Developments and recent trends

Tian

Zhang

Deng

et al. 2019

Energy Conversion and Management

144

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Large solar collector fields are very popular in district heating system in Denmark, even though the solar radiation source is not favourable at high latitudes compared to many other regions. Business models for large solar heating plants in Denmark has attracted much attention worldwide. Denmark is not only the biggest country in both total installed capacities and numbers of large solar district heating plants, but also is the first and only country with commercial market-driven solar district heating plants. By the end of 2017, more than 1.3 million m 2 solar district heating plants are in operation in Denmark. Furthermore, more than 70 % of the large solar district heating plants worldwide are constructed in Denmark. Based on the case of Denmark, this study reviews the development of large solar district heating plants in Denmark since 2006. Success factors for Danish experiences was summarized and discussed. Novel design concepts of large solar district heating plants are also addressed to clarify the future development trend. Potential integration of large solar district heating plants with other renewable energy technologies are discussed. This paper can provide references to potential countries that want to exploit the market for solar district heating plants. Policymakers can evaluate the advantages and disadvantages of solar district heating systems in the national energy planning level based on the know-how and experiences from Denmark.

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supporting

confidence: 54%

Large-scale solar district heating plants in Danish smart thermal grid: Developments and recent trends

Tian

Zhang

Deng

et al. 2019

Energy Conversion and Management

144

View full text Add to dashboard Cite

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“…(v) Viability assessment and investment return. Due to the infrastructure characteristics and the involved equipment a time horizon of thirty years is considered [5,8]. The Internal Rate of Return (IRR) is used as main parameter for the evaluation and comparison between projects of the interest of investment.…”

Section: Spain As Base Correction Factormentioning

confidence: 99%

“…On this goal, the replacement of existing low efficiency heating systems by high efficiency district heating and cooling (DHC) facilities based on renewable sources is of the highest interest [3]. Their implementation can generate significant fuel and cost savings, reducing significantly greenhouse gases emissions [4,5]. On the other hand, despite their high interest, it is necessary the development of adequate regulatory and financial frameworks to support the large scale implementation of advanced district heating networks.…”

Section: Introductionmentioning

confidence: 99%

Biomass District Heating Systems Based on Agriculture Residues

et al. 2018

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This paper presents a methodology for analyzing the regional potential for developing biomass district heating systems combining forestry biomass and agriculture residues as fuel. As a case study, this methodology is applied to the continental region of Spain. With this analysis the potential for the implementation of biomass district heating systems based on the use of agriculture residues is applied to 501 rural municipalities in Spain. The renewable forestry biomass and agriculture residues resources availability is analyzed and the biomass required for heating is assessed. The results of applying the methodology show the interest of the combination of biomass sources in a relevant number of municipalities with estimated Internal Rate of Return (IRR) values above 10% and for the analyzed region an IRR mean value of 4.3%.

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“…This integration was previously identified by Lund el al. [7], Handy et al [8] and Lizana et al [9,10], who showed that the implementation of efficient and renewable DH systems, along with local efficient heat pumps (HPs), could play an important role in the successful deployment of a sustainable building sector.…”

Section: Introductionmentioning

confidence: 99%

Energy flexible building through smart demand-side management and latent heat storage

et al. 2018

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One of the greatest challenges for long-term emissions reduction is the decarbonisation of heating and cooling due to the large scale, seasonal variation and distributed nature. Energy flexible buildings with electric heating, smart demand-side management and efficient thermal energy storage are one of the most promising strategies to deploy low-carbon technologies which can benefit the electricity system by reducing the need of reinforcing existing networks and their ability to use electricity in times of low demand and high supply. Combined with spot price contracts, in which the electricity tariff changes every half-hour depending on supply and demand, they can effectively reduce on-peak demand periods, achieve economic profits for end-users and retailers, and reduce the environmental impact of the electricity grid by operating in periods with lower CO2 emissions rate. To achieve these benefits, it is crucial to develop accurate models for energy flexible buildings as well as control strategies to optimise the complex system operation. This paper proposes a novel flexible energy building concept, based on smart control, high density latent heat storage and smart grids, able to predict the best operational strategy according to the environmental conditions, economic rates and expected occupancy patterns. The smart integration model, carried out in TRNSYS for a Scottish case study, solves a multi-criteria assessment based on future energy demand prediction (learning machine model supported by end-user's predefined occupancy by Internet of Things, present and forecast weather data, and building load monitoring), electricity tariff evolution and building performance. The results show that end-user's electricity bill savings of 20% are obtained and retailer's electricity cost is reduced by 25%. In addition, despite an increase in final energy consumption of up to 8%, the environmental impact remains constant due to operation at times with lower CO2 emissions rate of the electricity generation. The developed tools enable the design of smart energy systems for energy flexible buildings which can have a large, positive impact on the building sector decarbonisation.

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District heating systems based on low-carbon energy technologies in Mediterranean areas

Cited by 54 publications

References 40 publications

Large-scale solar district heating plants in Danish smart thermal grid: Developments and recent trends

Large-scale solar district heating plants in Danish smart thermal grid: Developments and recent trends

Biomass District Heating Systems Based on Agriculture Residues

Energy flexible building through smart demand-side management and latent heat storage

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