Technical Aspects and Energy Effects of Waste Heat Recovery from District Heating Boiler Slag

Tańczuk, Mariusz; Masiukiewicz, Maciej; Anweiler, Stanisław; Junga, Robert

doi:10.3390/en11040796

Cited by 12 publications

(10 citation statements)

References 31 publications

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“…According to Food and Agriculture Organization of the United Nations (FAO) [12], in 2016 Poland was listed in second place among all EU states in terms live chickens (12.0% of the EU-28), next to Germany (13.0%), France (11.9%), United Kingdom (11.1%), Italy (10.1%), Spain (10.1%) and Netherlands (7.5%). The second one is associated with the dominant share of coal-fired sources in the production of heat: coal and coal products account for 86% of total heat production in Poland [13], similar to some other European countries where coal continues to dominate in the structure of the heat production system [14,15]. Additionally, Poland has the dominant share of coal-fired sources in the production of heat and electricity supplying chicken farms.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Energy Potential of Chicken Manure in Poland

et al. 2019

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Animal waste, including chicken manure, is a category of biomass considered for application in the energy industry. Poland is leading poultry producer in Europe, with a chicken population assessed at over 176 million animals. This paper aims to determine the theoretical and technical energy potential of chicken manure in Poland. The volume of chicken manure was assessed as 4.49 million tons per year considering three particular poultry rearing systems. The physicochemical properties of examined manure specimens indicate considerable conformity with the data reported in the literature. The results of proximate and ultimate analyses confirm a considerable effect of the rearing system on the energy parameters of the manure. The heating value of the chicken manure was calculated for the high moisture material in the condition as received from the farms. The value of annual theoretical energy potential in Poland was found to be equal to around 40.38 PJ. Annual technical potential of chicken biomass determined for four different energy conversion paths occurred significantly smaller then theoretical and has the value from 9.01 PJ to 27.3 PJ. The bigger energy degradation was found for heat and electricity production via anaerobic digestion path, while fluidized bed combustion occurred the most efficient scenario.

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Section: Introductionmentioning

confidence: 99%

Assessment of the Energy Potential of Chicken Manure in Poland

et al. 2019

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“…P total is the total power drawn by the pump, which includes the effects of motor inefficiency. In Equations (15) and (16), η pumpimg is the overall pump efficiency and η motor is the motor efficiency. The energy transferred from the motor to the ambient is given by the following equation [23,25].…”

Section: Piping Heat Losses and Pump Power Calculationmentioning

confidence: 99%

“…The development of such generation involved the challenge of more energy efficient buildings as well as being integrated with other smart energy systems. Ta´nczuk et al [16] studied the technical aspects and energy effects of waste heat recovery from the slag of DH boiler. Their results showed that the proposed heat pump provides energy savings by recovering the potential energy of slag from 58.8% to 88.0%.…”

Section: Introductionmentioning

confidence: 99%

Optimized Design of the District Heating System by Considering the Techno-Economic Aspects and Future Weather Projection

2019

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High mountains and cold climate in the north-west of Iran are critical factors for the design of optimized District Heating (DH) systems and energy-efficient buildings. It is essential to consider the Life Cycle Cost (LCC) that includes all costs, such as initial investment and operating costs, for designing an optimum DH system. Moreover, considering climate change for accurately predicting the required heating load is also necessary. In this research, a general optimization is carried out for the first time with the aim of a new design concept of a DH system according to a LCC, while considering all-involved parameters. This optimized design is based on various parameters such as ceiling and wall insulation thicknesses, depth of buried water and heating supply pipes, pipe insulation thickness, and boiler outlet temperature. In order to consider the future weather projection, the mentioned parameters are compared with and without climate change effects in a thirty-year period. The location selection was based on the potential of the region for such a system together with the harsh condition of the area to transport the common fossil fuel to the residential buildings. The obtained results show that insulation of walls is more thermally efficient than a roof with the same area in the selected case. In this case, polyurethane is the best material, which can cause a reduction of 59% in the heating load and, consequently, 2332 tons of CO2 emission annually. The most and the least investment payback periods are associated with the polyurethane and the glass wool insulation materials with the amounts of seven and one years. For the general optimization of the DH system, the Particle Swarm Optimization (PSO) method with a constriction coefficient was chosen. The results showed that the optimal thickness of the polyurethane layer for the thermal insulation of the building exterior walls is about 14 cm and the optimal outlet temperature of the boiler is about 95 °C. It can be also concluded that the optimal depth for the buried pipes is between 1.5 to 3 m underground. In addition, for the pipe with elastomeric insulation layer, the thickness of 2 cm is the optimal choice.

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“…Taneczuk et al [179] analyzed the technical possibilities to use district heating boiler slag in order to recover further thermal energy. In the framework of a development of sustainable, efficient and environmental friendly energy paradigm, it is crucial to recover energy by whatever source.…”

Section: Polygeneration and District Heatingmentioning

confidence: 99%

Recent Advances in the Analysis of Sustainable Energy Systems

et al. 2018

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EU energy policy is more and more promoting a resilient, efficient and sustainable energy system. Several agreements have been signed in the last few months that set ambitious goals in terms of energy efficiency and emission reductions and to reduce the energy consumption in buildings. These actions are expected to fulfill the goals negotiated at the Paris Agreement in 2015. The successful development of this ambitious energy policy needs to be supported by scientific knowledge: a huge effort must be made in order to develop more efficient energy conversion technologies based both on renewables and fossil fuels. Similarly, researchers are also expected to work on the integration of conventional and novel systems, also taking into account the needs for the management of the novel energy systems in terms of energy storage and devices management. Therefore, a multi-disciplinary approach is required in order to achieve these goals. To ensure that the scientists belonging to the different disciplines are aware of the scientific progress in the other research areas, specific Conferences are periodically organized. One of the most popular conferences in this area is the Sustainable Development of Energy, Water and Environment Systems (SDEWES) Series Conference. The 12th Sustainable Development of Energy, Water and Environment Systems Conference was recently held in Dubrovnik, Croatia. The present Special Issue of Energies, specifically dedicated to the 12th SDEWES Conference, is focused on five main fields: energy policy and energy efficiency in smart energy systems, polygeneration and district heating, advanced combustion techniques and fuels, biomass and building efficiency.

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Technical Aspects and Energy Effects of Waste Heat Recovery from District Heating Boiler Slag

Cited by 12 publications

References 31 publications

Assessment of the Energy Potential of Chicken Manure in Poland

Assessment of the Energy Potential of Chicken Manure in Poland

Optimized Design of the District Heating System by Considering the Techno-Economic Aspects and Future Weather Projection

Recent Advances in the Analysis of Sustainable Energy Systems

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