The aim of the article was to identify actions, based on the experiences of China, Brazil, Canada, and the United States, that countries can implement to increase the share of hydro, solar, and wind energy in their economies. The analysis relied on a literature review and data obtained from the Our World In Data database. The findings indicate that there are effective strategies for clean energy adoption that can be applied worldwide. Key considerations include investing in appropriate infrastructure, developing new energy storage technologies, and implementing environmentally friendly methods for disposing of photovoltaic panels. It is essential to provide financial support for scientific research, particularly in assessing the long-term potential of renewable energy, considering geographic distribution, and evaluating public acceptance. Regulatory frameworks should strike a balance between promoting renewable energy expansion and avoiding excessive growth.
这篇文章的目的是根据中国、巴西、加拿大和美国的经验，确定各国可以采取的行动，以增加水电、太阳能和风能在其经济中的份额。该分析基于文献综述和从Our World In data数据库获得的数据。研究结果表明，清洁能源采用的有效策略可以在全球范围内应用。关键考虑因素包括投资适当的基础设施，开发新的能源存储技术，以及采用环保方法处理光伏电池板。必须为科学研究提供资金支持，特别是在评估可再生能源的长期潜力、考虑地理分布和评估公众接受程度方面。监管框架应在促进可再生能源扩张和避免过度增长之间取得平衡。
{"title":"RENEWABLE ENERGY SOURCES - BENEFITS AND DRAWBACKS FROM THE PERSPECTIVE OF THE EXPERIENCES OF CHINA, BRAZIL, CANADA AND THE UNITED STATES","authors":"Edyta NARTOWSKA, Alina ROZENVALDE","doi":"10.59440/ceer-2023-0003","DOIUrl":"https://doi.org/10.59440/ceer-2023-0003","url":null,"abstract":"The aim of the article was to identify actions, based on the experiences of China, Brazil, Canada, and the United States, that countries can implement to increase the share of hydro, solar, and wind energy in their economies. The analysis relied on a literature review and data obtained from the Our World In Data database. The findings indicate that there are effective strategies for clean energy adoption that can be applied worldwide. Key considerations include investing in appropriate infrastructure, developing new energy storage technologies, and implementing environmentally friendly methods for disposing of photovoltaic panels. It is essential to provide financial support for scientific research, particularly in assessing the long-term potential of renewable energy, considering geographic distribution, and evaluating public acceptance. Regulatory frameworks should strike a balance between promoting renewable energy expansion and avoiding excessive growth.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135622458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper deals with issues related to the diagnosis of dampness and mycological tests in historic buildings. The selection of appropriate diagnostic procedures in the case of historic buildings undergoing modernisation, revitalisation or renovation is an important element of properly conducted works aimed at the preservation of cultural heritage. The article presents the issues of biodeterioration, and the scope of procedures for carrying out expert assessments of historic buildings, with emphasis on the issue of mycological testing. In conclusion, the article states that due to dynamic degradation processes caused by biological corrosion, mycological examinations of buildings containing wooden structures should be obligatory in the building law. It was pointed out that economics repeatedly determines the depth of research and thus the reliability of the analysis results obtained.
{"title":"ANALYSIS OF THE IMPACT OF MOISTURE AND BIODETERIORATION\u0000ON THE ASSESSMENT OF THE TECHNICAL CONDITION OF\u0000HISTORICAL BUILDINGS","authors":"B. Ksit","doi":"10.59440/ceer-2023-0001","DOIUrl":"https://doi.org/10.59440/ceer-2023-0001","url":null,"abstract":"This paper deals with issues related to the diagnosis of dampness and mycological tests in historic buildings. The\u0000selection of appropriate diagnostic procedures in the case of historic buildings undergoing modernisation,\u0000revitalisation or renovation is an important element of properly conducted works aimed at the preservation of\u0000cultural heritage. The article presents the issues of biodeterioration, and the scope of procedures for carrying out\u0000expert assessments of historic buildings, with emphasis on the issue of mycological testing. In conclusion, the\u0000article states that due to dynamic degradation processes caused by biological corrosion, mycological examinations\u0000of buildings containing wooden structures should be obligatory in the building law. It was pointed out that\u0000economics repeatedly determines the depth of research and thus the reliability of the analysis results obtained.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48286729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Wastewater treatment in semi-natural systems, such as a hydroponic lagoon operating as the third stage of treatment, is becoming more and more popular because of the efficiency of organic matter and nutrient removal. The article presents an analysis of the efficiency of pollutant removal at the mechanical-biological wastewater treatment plant in Gronów with a capacity of Qd = 1125m3/day and a load of 9375 PE. The wastewater treatment plant operates on the basis of activated sludge and biomass settling technology on submerged flow beds. The treatment plant is characterized by a very high variability of wastewater inflow during the year due to periodic inflow of wastewater from tourist resorts in Łagów. The average efficiency of removing pollutants from wastewater was: BOD5 - 98.5%, COD - 92.8%, total suspended solids - 93.2%, total nitrogen - 86.1% and total phosphorus - 69.5%. The study showed that the use of a hydroponic lagoon in the technological system improved the efficiency of wastewater treatment by 1.7% for BOD5, 0.9% - COD, total suspended solids by 4.3%, 6.4% for total nitrogen and total phosphorus- 3.3%.
{"title":"Pollutants Removal Efficiency in the Hydroponic Lagoon of the Wastewater Treatment Plant","authors":"Anita Jakubaszek","doi":"10.2478/ceer-2022-0059","DOIUrl":"https://doi.org/10.2478/ceer-2022-0059","url":null,"abstract":"Abstract Wastewater treatment in semi-natural systems, such as a hydroponic lagoon operating as the third stage of treatment, is becoming more and more popular because of the efficiency of organic matter and nutrient removal. The article presents an analysis of the efficiency of pollutant removal at the mechanical-biological wastewater treatment plant in Gronów with a capacity of Qd = 1125m3/day and a load of 9375 PE. The wastewater treatment plant operates on the basis of activated sludge and biomass settling technology on submerged flow beds. The treatment plant is characterized by a very high variability of wastewater inflow during the year due to periodic inflow of wastewater from tourist resorts in Łagów. The average efficiency of removing pollutants from wastewater was: BOD5 - 98.5%, COD - 92.8%, total suspended solids - 93.2%, total nitrogen - 86.1% and total phosphorus - 69.5%. The study showed that the use of a hydroponic lagoon in the technological system improved the efficiency of wastewater treatment by 1.7% for BOD5, 0.9% - COD, total suspended solids by 4.3%, 6.4% for total nitrogen and total phosphorus- 3.3%.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"293 - 305"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42825059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract In the case of tunnelling by mining methods, mining regulations apply to the design of ventilation. The most important criteria to be taken into account when calculating the minimum air flow rate in a tunnel are the air velocity, the multiple exchange of air during one hour, not exceeding the permissible concentrations of gases and dust, and ensuring appropriate climatic conditions. In this paper, an analysis of ventilation methods is carried out, taking into account the parameters of fans and ventilation ducts. Changing the diameter of the duct line from 1,000 to 1,400 mm results in a 3-4-fold reduction in fan power. Adding a second twin installation reduces the ventilation power requirement fourfold. Making the duct lines parallel increases the ventilation power requirement by about 30-50% compared to two duct installations.
{"title":"Analysis of Tunnel Ventilation During Tunnelling - A Case Study","authors":"K. Słota, Z. Słota","doi":"10.2478/ceer-2022-0056","DOIUrl":"https://doi.org/10.2478/ceer-2022-0056","url":null,"abstract":"Abstract In the case of tunnelling by mining methods, mining regulations apply to the design of ventilation. The most important criteria to be taken into account when calculating the minimum air flow rate in a tunnel are the air velocity, the multiple exchange of air during one hour, not exceeding the permissible concentrations of gases and dust, and ensuring appropriate climatic conditions. In this paper, an analysis of ventilation methods is carried out, taking into account the parameters of fans and ventilation ducts. Changing the diameter of the duct line from 1,000 to 1,400 mm results in a 3-4-fold reduction in fan power. Adding a second twin installation reduces the ventilation power requirement fourfold. Making the duct lines parallel increases the ventilation power requirement by about 30-50% compared to two duct installations.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"259 - 269"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44435042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The study determined the similarities and differences between the fuel properties of different types of biomass (triticale and oat straw; bark: oak, alder, hornbeam, pine) and biochar (municipal waste biochar, composting biochar, pellet biochar and Fluid’s biochar). Bulk and actual densities and moisture contents, ash amounts, elemental composition (C, H, N) were determined, and the calorific value, heat of combustion and porosity of the substances studied were calculated. In addition, the physico-chemical properties of the ashes were determined. All the substances tested have high energy potential and can be used as biofuel. Fluid’s biochar had the best energy properties due to the highest calorific value and heat of combustion, as well as carbon content, with a small amount of ash. Varying composition of the ashes obtained still poses a problem in developing methods for their management.
{"title":"Analysis of the Energy Parameters of Selected Biomass and Biochar Types and the Environmental Impact of Their Ashes","authors":"J. Kujawska, Ewelina Bilicz, Emilia Mendyk","doi":"10.2478/ceer-2022-0050","DOIUrl":"https://doi.org/10.2478/ceer-2022-0050","url":null,"abstract":"Abstract The study determined the similarities and differences between the fuel properties of different types of biomass (triticale and oat straw; bark: oak, alder, hornbeam, pine) and biochar (municipal waste biochar, composting biochar, pellet biochar and Fluid’s biochar). Bulk and actual densities and moisture contents, ash amounts, elemental composition (C, H, N) were determined, and the calorific value, heat of combustion and porosity of the substances studied were calculated. In addition, the physico-chemical properties of the ashes were determined. All the substances tested have high energy potential and can be used as biofuel. Fluid’s biochar had the best energy properties due to the highest calorific value and heat of combustion, as well as carbon content, with a small amount of ash. Varying composition of the ashes obtained still poses a problem in developing methods for their management.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"147 - 166"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46609900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Progressive climate change brings many challenges to cities, which, in an effort to meet them, are looking for ways to create a built environment that is resilient and adapted to change. The subject of the paper is the urban nature, which, skillfully used and introduced into public space, becomes an active tool for adapting cities to future climate conditions. The aim of the paper is to identify key solutions to introduce urban nature into public spaces in the context of model strategic planning and urban design undertaken in cities. To this aim, development strategies, with a particular focus on urban nature, developed in Copenhagen over the past few years, were researched. Of those identified, the directions and actions that address public spaces and holistically link the needs of the built and natural environment with the needs of humans were selected. Research leads to a comparison of the model strategies and selected implementations used in Copenhagen, prioritizing the urban nature, with examples of strategic development policies and adaptation projects implemented in the public spaces of selected Polish cities. The result of the research is an assessment of the completeness of climate change adaptation measures undertaken in Poland, using the potential of urban nature in public spaces and recommendations for updating planning and strategic documents based on Copenhagen’s model solutions.
{"title":"Urban Nature as an Active Means of Adapting Public Spaces to Climate Conditions: Case Studies from Copenhagen and Selected Polish Cities","authors":"A. Pancewicz","doi":"10.2478/ceer-2022-0049","DOIUrl":"https://doi.org/10.2478/ceer-2022-0049","url":null,"abstract":"Abstract Progressive climate change brings many challenges to cities, which, in an effort to meet them, are looking for ways to create a built environment that is resilient and adapted to change. The subject of the paper is the urban nature, which, skillfully used and introduced into public space, becomes an active tool for adapting cities to future climate conditions. The aim of the paper is to identify key solutions to introduce urban nature into public spaces in the context of model strategic planning and urban design undertaken in cities. To this aim, development strategies, with a particular focus on urban nature, developed in Copenhagen over the past few years, were researched. Of those identified, the directions and actions that address public spaces and holistically link the needs of the built and natural environment with the needs of humans were selected. Research leads to a comparison of the model strategies and selected implementations used in Copenhagen, prioritizing the urban nature, with examples of strategic development policies and adaptation projects implemented in the public spaces of selected Polish cities. The result of the research is an assessment of the completeness of climate change adaptation measures undertaken in Poland, using the potential of urban nature in public spaces and recommendations for updating planning and strategic documents based on Copenhagen’s model solutions.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"123 - 146"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43434601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Malinowski, E. Meller, I. Ochmian, K. Malinowska, Monika Figiel-Kroczyńska
Abstract Organic wood waste (sawdust, shavings, pieces of wood and bark), is widely used as a secondary raw material and, after composting, for soil fertilisation and substrate production in agriculture, horticulture, forestry, urban landscaping and rehabilitation of degraded land. However, problematic to process is wood waste that is very dirty with soil. They have limited calorific value and cannot be used in the R10 recovery process of land treatment benefiting agriculture or improving the environment. However, the morphological composition of these wastes indicates that they have good properties and can be used for agricultural use and for the reclamation of degraded land. The research involved wood waste with the code 03 01 99 (other unspecified waste from wood processing and the production of panels and furniture) generated during the preparation of deciduous tree logs for the veneer production process, and ashes from the burning of wood waste generated in the veneer production factory. The aim of the study was to assess the chemical composition of these wastes and the possibility of their agricultural use. In the samples of wood waste and ashes there was determined: pH; chlorines content; conductivity; hydrolytic acidity; content of micro and macroelements and heavy metals. The morphological composition of the waste is dominated by sawdust, with a smaller share of shavings, bark and earth parts, and a small addition of pieces of wood of various sizes. It is rich in easily bioavailble as well as total macroelements and is not contaminated with heavy metals. Analyzed wood waste has deacidifying properties, high sorption and buffering capacity. Studies have shown that the wood waste produced at the veneer factory, can be used as an organic fertiliser, a component of other organic fertilisers, for soil mulching, horticultural substrate and soil and land reclamation.The ash obtained from burning wood is strongly alkaline and rich in alkaline cations, mainly Ca, Mg and K. It is not contaminated with heavy metals. The ash can be used for soil deacidification and fertilization, especially for soil reclamation. The waste from the heap can be used as an organic fertilizer, a component of other organic fertilizers, for mulching soils and as a gardening substrate. However, the possibilities for non-agricultural (e.g.: for the production of pallet, particle board) use are limited due to the high proportion of earthy parts.
{"title":"Chemical Composition of Industrial Wood Waste and the Possibility of its Management","authors":"R. Malinowski, E. Meller, I. Ochmian, K. Malinowska, Monika Figiel-Kroczyńska","doi":"10.2478/ceer-2022-0051","DOIUrl":"https://doi.org/10.2478/ceer-2022-0051","url":null,"abstract":"Abstract Organic wood waste (sawdust, shavings, pieces of wood and bark), is widely used as a secondary raw material and, after composting, for soil fertilisation and substrate production in agriculture, horticulture, forestry, urban landscaping and rehabilitation of degraded land. However, problematic to process is wood waste that is very dirty with soil. They have limited calorific value and cannot be used in the R10 recovery process of land treatment benefiting agriculture or improving the environment. However, the morphological composition of these wastes indicates that they have good properties and can be used for agricultural use and for the reclamation of degraded land. The research involved wood waste with the code 03 01 99 (other unspecified waste from wood processing and the production of panels and furniture) generated during the preparation of deciduous tree logs for the veneer production process, and ashes from the burning of wood waste generated in the veneer production factory. The aim of the study was to assess the chemical composition of these wastes and the possibility of their agricultural use. In the samples of wood waste and ashes there was determined: pH; chlorines content; conductivity; hydrolytic acidity; content of micro and macroelements and heavy metals. The morphological composition of the waste is dominated by sawdust, with a smaller share of shavings, bark and earth parts, and a small addition of pieces of wood of various sizes. It is rich in easily bioavailble as well as total macroelements and is not contaminated with heavy metals. Analyzed wood waste has deacidifying properties, high sorption and buffering capacity. Studies have shown that the wood waste produced at the veneer factory, can be used as an organic fertiliser, a component of other organic fertilisers, for soil mulching, horticultural substrate and soil and land reclamation.The ash obtained from burning wood is strongly alkaline and rich in alkaline cations, mainly Ca, Mg and K. It is not contaminated with heavy metals. The ash can be used for soil deacidification and fertilization, especially for soil reclamation. The waste from the heap can be used as an organic fertilizer, a component of other organic fertilizers, for mulching soils and as a gardening substrate. However, the possibilities for non-agricultural (e.g.: for the production of pallet, particle board) use are limited due to the high proportion of earthy parts.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"167 - 183"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43064967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Teleszewski, K. Gładyszewska-Fiedoruk, M. Sulewska
Abstract Masks are the primary tool used to prevent the spread of COVID-19 in the current pandemic. Tests were carried out to determine the total pressure drop through the materials from which the masks are made and the correlation of these results with the concentration of carbon dioxide in the inner space of the mask. The results showed that a parameter representing hydraulic losses of the mask material has a significant influence on the concentration of carbon dioxide in the inner space of the mask. Masks with higher hydraulic resistances accumulated a higher concentration of carbon dioxide, and generated greater fluctuations of carbon dioxide as a function of time, which may be caused by compensation of the respiratory system. For example, in a two-layer mask (mask no. 3) the hydraulic resistance values are about three times higher than in a single-layer mask (mask no. 1). The study also noticed that the inscriptions and prints placed on the masks increase the hydraulic resistance of the material from which the masks are made, which may also contribute to the accumulation of carbon dioxide in the space between the mask and the face. To reduce the accumulation of carbon dioxide within the inner space of the mask, the results of this work suggest searching for mask materials with the lowest possible hydraulic resistance.
{"title":"Experimental Studies of Hydraulic Losses and Carbon Dioxide Concentration in the Space Under the Face Mask Protecting Against COVID-19","authors":"T. Teleszewski, K. Gładyszewska-Fiedoruk, M. Sulewska","doi":"10.2478/ceer-2022-0042","DOIUrl":"https://doi.org/10.2478/ceer-2022-0042","url":null,"abstract":"Abstract Masks are the primary tool used to prevent the spread of COVID-19 in the current pandemic. Tests were carried out to determine the total pressure drop through the materials from which the masks are made and the correlation of these results with the concentration of carbon dioxide in the inner space of the mask. The results showed that a parameter representing hydraulic losses of the mask material has a significant influence on the concentration of carbon dioxide in the inner space of the mask. Masks with higher hydraulic resistances accumulated a higher concentration of carbon dioxide, and generated greater fluctuations of carbon dioxide as a function of time, which may be caused by compensation of the respiratory system. For example, in a two-layer mask (mask no. 3) the hydraulic resistance values are about three times higher than in a single-layer mask (mask no. 1). The study also noticed that the inscriptions and prints placed on the masks increase the hydraulic resistance of the material from which the masks are made, which may also contribute to the accumulation of carbon dioxide in the space between the mask and the face. To reduce the accumulation of carbon dioxide within the inner space of the mask, the results of this work suggest searching for mask materials with the lowest possible hydraulic resistance.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"13 - 24"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44272033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The paper presents the results of numerical analyses carried out in the IRIC environment on the Nays2DH hydrodynamic model regarding the impact of plants in the riverbed and watercourse maintenance on hydraulic conditions. The research material was collected for the actual input variant in October 2018 on the Ślęza River in Wrocław. The constructed and calibrated model was reconfigured on basis of the existing vegetation in three possible variants related to river maintenance: W0 variant - leaving the vegetation in the riverbed, W1 variant - removing all vegetation in the riverbed, variant W2 - removing vegetation in the 2.0 m strip from the right bank, W3 - removing of vegetation in a strip of 2.0 m from the bank, alternately on the right and left bank. Hydrological boundary conditions were flows from 0,32 to 5 [m3/s]. For four variants, the dependence of flows on the water table location, maximum and average velocities in the channel, and maximum and average shear stresses in the channel were analysed.
{"title":"Impact of Maintenance Methods of an Overgrown Lowland River on its Hydraulic Conditions","authors":"K. Wolski","doi":"10.2478/ceer-2022-0060","DOIUrl":"https://doi.org/10.2478/ceer-2022-0060","url":null,"abstract":"Abstract The paper presents the results of numerical analyses carried out in the IRIC environment on the Nays2DH hydrodynamic model regarding the impact of plants in the riverbed and watercourse maintenance on hydraulic conditions. The research material was collected for the actual input variant in October 2018 on the Ślęza River in Wrocław. The constructed and calibrated model was reconfigured on basis of the existing vegetation in three possible variants related to river maintenance: W0 variant - leaving the vegetation in the riverbed, W1 variant - removing all vegetation in the riverbed, variant W2 - removing vegetation in the 2.0 m strip from the right bank, W3 - removing of vegetation in a strip of 2.0 m from the bank, alternately on the right and left bank. Hydrological boundary conditions were flows from 0,32 to 5 [m3/s]. For four variants, the dependence of flows on the water table location, maximum and average velocities in the channel, and maximum and average shear stresses in the channel were analysed.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"306 - 322"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47657930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Edyta Nartowska, Dominik Budzianowski, Marta Styś-Maniara
Abstract The purpose of the article was to estimate the thermal power of groundwater intakes of the Kielce district within the sheets of hydrogeological maps with the serial numbers MHP 813-817, MHP 850-851, and to indicate in this area prospective areas for the development of low-temperature geothermal energy supported by water/water heat pumps. Based on the calculations on the basis of 147 groundwater intakes, it was determined that the estimated values of thermal power resources are in the range of 3.47 kW to 5757.34 kW. The created map of the low-temperature geothermal potential for groundwater intakes indicates the towns of Bodzentyn, Morawica and the villages of Piekoszów, Wolica and the area around the village of Górno as prospective areas.
{"title":"Assessment of the Thermal Power of Groundwater Intakes in the Kielce District","authors":"Edyta Nartowska, Dominik Budzianowski, Marta Styś-Maniara","doi":"10.2478/ceer-2022-0043","DOIUrl":"https://doi.org/10.2478/ceer-2022-0043","url":null,"abstract":"Abstract The purpose of the article was to estimate the thermal power of groundwater intakes of the Kielce district within the sheets of hydrogeological maps with the serial numbers MHP 813-817, MHP 850-851, and to indicate in this area prospective areas for the development of low-temperature geothermal energy supported by water/water heat pumps. Based on the calculations on the basis of 147 groundwater intakes, it was determined that the estimated values of thermal power resources are in the range of 3.47 kW to 5757.34 kW. The created map of the low-temperature geothermal potential for groundwater intakes indicates the towns of Bodzentyn, Morawica and the villages of Piekoszów, Wolica and the area around the village of Górno as prospective areas.","PeriodicalId":54121,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"32 1","pages":"25 - 49"},"PeriodicalIF":0.7,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49380316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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