Development of Innovative Heating and Cooling Systems Using Renewable Energy Sources for Non-Residential Buildings

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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Renewable Energy Sources in Construction of Energy Efficient Residential Buildings

New Technologies, Development and Application III - Lecture Notes in Networks and Systems ◽

10.1007/978-3-030-46817-0_81 ◽

2020 ◽

pp. 709-719

Author(s):

Miron Torlo ◽

Ismar Kreso ◽

Šunje Edin

Keyword(s):

Renewable Energy ◽

Energy Efficient ◽

Residential Buildings ◽

Renewable Energy Sources ◽

Energy Sources

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Optimisation of Energy Accumulation for Renewable Energy Sources

Renewable Energy and Power Quality Journal ◽

10.24084/repqj19.258 ◽

2021 ◽

Vol 19 ◽

pp. 205-210

Author(s):

Milan Belik ◽

Keyword(s):

Renewable Energy ◽

Model Building ◽

Residential Buildings ◽

Renewable Energy Sources ◽

Photovoltaic System ◽

Energy Sources ◽

Pv System ◽

Energy Accumulation ◽

Wind Power Station ◽

Future Production

This project focuses on optimisation of energy accumulation for various types of distributed renewable energy sources. The main goal is to prepare charging – discharging strategy depending on actual power consumption and prediction of consumption and production of utilised renewable energy sources for future period. The simulation is based on real long term data measured on photovoltaic system, wind power station and meteo station between 2004 – 2021. The data from meteo station serve as the input for the simulation and prediction of the future production while the data from PV system and wind turbine are used either as actual production or as a verification of the predicted values. Various parameters are used for trimming of the optimisation process. Influence of the charging strategy, discharging strategy, values and shape of the demand from the grid and prices is described on typical examples of the simulations. The main goal is to prepare and verify the system in real conditions with real load chart and real consumption defined by the model building with integrated renewable energy sources. The system can be later used in general installations on commercial or residential buildings.

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The use of drive turbine cooling systems based on renewable energy sources

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/378/1/012048 ◽

2019 ◽

Vol 378 ◽

pp. 012048 ◽

Cited By ~ 2

Author(s):

K V Osintsev ◽

M V Tregubova ◽

Y A Perekopnaya ◽

Iu S Prikhodko

Keyword(s):

Renewable Energy ◽

Renewable Energy Sources ◽

Energy Sources ◽

Cooling Systems ◽

Turbine Cooling

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Ecological houses of Southern Kazakhstan using renewable energy sources

Smart and Sustainable Built Environment ◽

10.1108/sasbe-06-2020-0088 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Ardasher Namazbay Yussupov ◽

Akmaral Ardasherovna Yussupova

Keyword(s):

Renewable Energy ◽

Rural Areas ◽

Building Materials ◽

Residential Buildings ◽

Renewable Energy Sources ◽

Local Population ◽

Climatic Conditions ◽

Energy Sources ◽

Content Type ◽

Wide Range

PurposeThe purpose of this article discusses the design of underground eco-houses using a dome structure of light construction while taking into account the historical experience of the development of the local population. This article considered the traditions of folk architecture and modern sophistication in the creation of energy-efficient eco-houses in foreign countries in the context of architecture and construction of affordable residential homes for the local population.Design/methodology/approachThe research presented in this paper was motivated by the need for developing agro-tourism facilities in hard-to-reach areas of the Silk Road in Southern Kazakhstan causes the construction of eco-houses built using local construction materials. Since ancient times in Southern Kazakhstan and during seasonal migrations in yurts of light construction, people have lived in mud-brick houses deep in the ground. Along with architectural and artistic solutions in building construction, great importance was attached to saving material resources, labour costs and achieving heat stability of residential buildings.FindingsIn the architectural and planning solution of the eco¬-house, progressive directions of construction of agrotechnical structures using renewable energy sources are adopted. Particular importance was given to the choice of the construction site on an elevated area nearby historical monuments and a favourable season for the construction of eco-houses with considering the natural and climatic characteristics of rural areas of Southern Kazakhstan.Research limitations/implicationsThis paper discussed the issues of insulation, ventilation and improving the eco-house microclimate comfort using local building materials. Improving the architectural and artistic expressiveness of the eco-house in terms of the tradition of folk architecture was also explicitly discussed in this paper.Practical implicationsTables with the justification of expediency of construction of economical eco-houses in natural and climatic conditions of Kazakhstan and Central Asia are provided. The results help to improve the energy efficiency of eco-houses in Kazakhstan by using renewable energy sources.Social implicationsSocial benefits are associated with the use of local raw materials. Eco-houses built from traditional building materials can become accessible to a wide range of people and stimulate the development of small businesses. This may be associated with the construction of eco-houses to serve visiting tourists in remote picturesque oases, as well as the manufacture of dome structures, felt products and the preparation of reed panels and so on.Originality/valueThe thermotechnical characteristics of the region's ground energy are given, which can significantly save the cost of heating the eco-house. Solutions for optimal insolation, ventilation of the eco-house are provided, taking into account the natural and climatic conditions of Southern Kazakhstan.

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Clean Energy for Cooling and Heating with Ground Source Heat Pumps

Advances in Nanoscience and Nanotechnology ◽

10.33140/ann.03.02.5 ◽

2019 ◽

Vol 3 (2) ◽

Keyword(s):

Renewable Energy ◽

Alternative Energy ◽

Renewable Energy Sources ◽

Clean Energy ◽

Heat Pumps ◽

Hot Water ◽

Energy Sources ◽

Ground Source Heat Pumps ◽

Heating And Cooling ◽

Ground Source

In the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasise has been put on utilisation of the ambient energy from ground source heat pump systems (GSHPs) and other renewable energy sources. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels. The study was carried out at the Energy Research Institute (ERI), between September 2016 and November 2017. This paper highlights the potential energy saving that could be achieved through use of ground energy source. The main concept of this technology is that it uses the lower temperature of the ground (approximately <32°C), which remains relatively stable throughout the year, to provide space heating, cooling and domestic hot water inside the building area. The purpose of this study, however, is to examine the means of reducing of energy consumption in buildings, identifying GSHPs as an environmental friendly technology able to provide efficient utilisation of energy in the buildings sector, promoting the use of GSHPs applications as an optimum means of heating and cooling, and presenting typical applications and recent advances of the DX GSHPs. It is concluded that the direct expansion of GSHP are extendable to more comprehensive applications combined with the ground heat exchanger in foundation piles and the seasonal thermal energy storage from solar thermal collectors. This study highlights the energy problem and the possible saving that can be achieved through the use of the GSHP systems. This article discusses the principle of the ground source energy, varieties of GSHPs, and various developments.

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Towards Nearly-Zero Energy in Heritage Residential Buildings Retrofitting in Hot, Dry Climates

Sustainability ◽

10.3390/su132413934 ◽

2021 ◽

Vol 13 (24) ◽

pp. 13934

Author(s):

Hanan S. S. Ibrahim ◽

Ahmed Z. Khan ◽

Yehya Serag ◽

Shady Attia

Keyword(s):

Renewable Energy ◽

Residential Buildings ◽

Renewable Energy Sources ◽

Energy Performance ◽

High Energy ◽

Energy Sources ◽

Zero Energy ◽

Building Stock ◽

Heritage Buildings ◽

Dry Climates

Retrofitting “nearly-zero energy” heritage buildings has always been controversial, due to the usual association of the “nearly-zero energy” target with high energy performance and the utilization of renewable energy sources in highly regarded cultural values of heritage buildings. This paper aims to evaluate the potential of turning heritage building stock into a “nearly-zero energy” in hot, dry climates, which has been addressed in only a few studies. Therefore, a four-phase integrated energy retrofitting methodology was proposed and applied to a sample of heritage residential building stock in Egypt along with microscale analysis on buildings. Three reference buildings were selected, representing the most dominant building typologies. The study combines field measurements and observations with energy simulations. In addition, simulation models were created and calibrated based on monitored data in the reference buildings. The results show that the application of hybrid passive and active non-energy generating scenarios significantly impacts energy use in the reference buildings, e.g., where 66.4% of annual electricity use can be saved. Moreover, the application of solar energy sources approximately covers the energy demand in the reference buildings, e.g., where an annual self-consumption of electricity up to 78% and surplus electricity up to 20.4% can be achieved by using photo-voltaic modules. Furthermore, annual natural gas of up to 66.8% can be saved by using two unglazed solar collectors. Lastly, achieving “nearly-zero energy” was possible for the presented case study area. The originality of this work lies in developing and applying an informed retrofitting (nearly-zero energy) guide to be used as a benchmark energy model for buildings that belong to an important historical era. The findings contribute to fill a gap in existing studies of integrating renewable energy sources to achieve “nearly-zero energy” in heritage buildings in hot climates.

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Demand Side Flexibility Potential and Comfort Performance of Non-Residential Buildings

Journal of Physics Conference Series ◽

10.1088/1742-6596/2069/1/012151 ◽

2021 ◽

Vol 2069 (1) ◽

pp. 012151

Author(s):

Georgios Chantzis ◽

Panagiota Antoniadou ◽

Maria Symeonidou ◽

Effrosyni Giama ◽

Simeon Oxizidis ◽

...

Keyword(s):

Renewable Energy ◽

Indoor Environment ◽

Residential Buildings ◽

Renewable Energy Sources ◽

Heating System ◽

Energy Performance ◽

Energy Sources ◽

Demand Side ◽

Eu Directive ◽

The Eu

Abstract The need to create and maintain a sustainable indoor environment is now more than ever compelling. Both the legislation framework concerning the energy performance of buildings, as determined in its evolution through the EU Directives 2010/31/EU, 2012/27/EU and 2018/844/EU, and the European strategic plans towards green buildings, denote the need of sustainability and comfort of indoor environment for the occupant. Moreover, the EU Directive 2018/2001 sets the renewable energy target of at least 32% for 2030, denoting that the high renewable energy sources penetration level leads to challenges in the design and control of power generation, transmission and distribution. Demand side management may be able to provide buildings with the energy flexibility needed, in order to utilize the intermittent production of Renewable Energy Sources in a much more efficient and cost-effective way. The flexibility potential of installed building systems is investigated, while considering the effects on the indoor environment conditions and the perceived comfort. The implemented Demand Response (DR) control strategy shifts loads by changing heating system set point temperatures, based on market clearing prices of the day ahead market. The results indicated a reduction in energy consumption and energy costs, while maintaining indoor environment quality at satisfactory levels.

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