The impacts of different heating systems on the environment: A review

Mahmoud, Montaser; Ramadan, Mohamad; Naher, Sumsun; Pullen, Keith; Olabi, Abdul–Ghani

doi:10.1016/j.scitotenv.2020.142625

Cited by 47 publications

(20 citation statements)

References 121 publications

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“…With the proposed fuzzy Cauchy distribution membership function, the ensemble ranking, shown in the first row of Table 8, is as follows: (1) heat pump (air to water), (2) solar heating, (3) district heating (direct), (4) heat pump (ground source), (5) heat pump (air to water, low-price product), (6) district heating (indirect), (7) heat pump (air-to-air), (8) gas boiler, (9) oil boiler, (10) heat pump (gas-hybrid), (11) biomass boiler (manual), (12) biomass boiler (auto), and (13) woodstove. In order to validate the robustness of the ranking result, sensitive analysis of the possible influencing factors, which are the high variance weight and fuzzy parameter setting, is needed.…”

Section: Ensemble Resultsmentioning

confidence: 99%

“…Heating systems differ in energy source, heat technology, equipment location, heat carrier, transfer mechanism and heat requirement in the heated spaces [8,9]. Energy sources are a major factor impacting the environment [10]; they are divided into fossil fuels, including oil, gas and coal, and renewables, including biomass, solar, geothermal, air, water, and waste [9]. Besides the traditional single energy source, research for combinations of multiple energy sources has increased, such as hybrid source heat pumps [11] and district heating [12].…”

Section: Motivationmentioning

confidence: 99%

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Fuzzy Ensemble of Multi-Criteria Decision Making Methods for Heating Energy Transition in Danish Households

Wen

Yan

et al. 2021

Mathematics

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More than 110 countries, including 500 cities worldwide, have set the goal of reaching carbon neutrality. Heating contributes to most of the residential energy consumption and carbon emissions. The green energy transition of fossil-based heating systems is needed to reach the emission goals. However, heating systems vary in energy source, heating technology, equipment location, and these complexities make it challenging for households to compare heating systems and make decisions. Hence, a decision support tool that provides a generalized ranking of individual heating alternatives is proposed for households as decision makers to identify the optimal choice. This paper presents an analysis of 13 heating alternatives and 19 quantitative criteria in technological, environmental, and financial aspects, combines ideal solution-based multi-criteria decision making with 6 weighting methods and 4 normalization methods, and introduces ensemble learning with a fuzzy membership function derived from Cauchy distribution to finalize the ultimate ranking. The robustness of the proposed method is verified by three sensitive analyses from different aspects. Air-to-water heat pump, solar heating and direct district heating are the top three rankings in the final result under Danish national average data. A framework is designed to guide decision makers to apply this ranking guideline with their practical, feasible situations.

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Section: Ensemble Resultsmentioning

confidence: 99%

Section: Motivationmentioning

confidence: 99%

Fuzzy Ensemble of Multi-Criteria Decision Making Methods for Heating Energy Transition in Danish Households

Wen

Yan

et al. 2021

Mathematics

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“…These emissions depend mainly on the type of heat source that is used in the heating system. Generally, the heat sources can be coal, wood, natural gas, diesel oil, solar energy, bioenergy, geothermal energy and waste heat [29].…”

Section: Environmental Outlookmentioning

confidence: 99%

Environmental Benefits and Energy Savings from Gas Radiant Heaters’ Flue-Gas Heat Recovery

2022

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This paper demonstrates the need and potential for using waste heat recovery (WHR) systems from infrared gas radiant heaters, which are typical heat sources in large halls, due to the increasing energy-saving requirements for buildings in the EU and the powerful and wide-spread development of the e-commerce market. The types of gas radiant heaters are discussed and the classification of WHR systems from these devices is performed. The article also presents for the first time our innovative solution, not yet available on the market, for the recovery of heat from the exhaust gases of ceramic infrared heaters. The energy analysis for an industrial hall shows that this solution allows for environmental benefits at different levels, depending on the gas infrared heater efficiency, by reducing the amount of fuel and emissions for domestic hot water (DHW) preparation (36.8%, 15.4% and 5.4%, respectively, in the case of low-, standard- and high-efficiency infrared heaters). These reductions, considering both DHW preparation and hall heating, are 16.1%, 7.6% and 3.0%, respectively. The key conclusion is that the innovative solution can spectacularly improve the environmental effect and achieve the highest level of fuel savings in existing buildings that are heated with radiant heaters with the lowest radiant efficiency.

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“…Research of the technologies of installations and furnaces operated on low-grade solid fuels under conditions of using water with increased hardness have shown the need to debug the operating mode of the heating boiler, taking into account the combustion process, as a determining factor in the efficiency of oxidation of fuel elements and intensification of heat transfer in the device [1][2][3][4][5]. At the same time, the process of burning low-grade fuels is associated with environmental problems, primarily CO and CO2 emissions [6][7]. For heating boilers of low power today only CO emissions are standardized in Kazakhstan [8].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness analysis of Maikuben brown coal combustion in the heating boiler “Kamkor-300”

Atyaksheva

Atyaksheva²,

Ryvkina

et al. 2022

J. Phys.: Conf. Ser.

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This research presents the results of studying the efficiency of Maikuben brown coal combustion in low-power heating boilers using the case of the Kamkor-300 boiler. Improving the combustion efficiency of low-grade fuels is directly related to fuel economy and the decrease of toxic emissions into the atmosphere. The research results show the possibility of adjusting the boiler according to the “fuel-air” ratio in the furnace volume, without violation of its general heat exchange structure and changing the heat-transfer operation in the device. In the research the adjustment of the operation of a long-burning boiler with an upper air supply in order to increase the time of combustion gases dwell in the boiler furnace volume drum is proposed. It is also possible to reduce the excess air coefficient to 0.55 and to operate the boiler under conditions of oxygen deficiency. Under such conditions, in the presented boiler, additional synthesis gases are released during the combustion of low-grade coals, in particular of coal rank “B”, to obtain an additional thermal effect. The resulting thermal effect leads to an increase of the boiler efficiency and its operational and economic indicators.

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The impacts of different heating systems on the environment: A review

Cited by 47 publications

References 121 publications

Fuzzy Ensemble of Multi-Criteria Decision Making Methods for Heating Energy Transition in Danish Households

Fuzzy Ensemble of Multi-Criteria Decision Making Methods for Heating Energy Transition in Danish Households

Environmental Benefits and Energy Savings from Gas Radiant Heaters’ Flue-Gas Heat Recovery

Effectiveness analysis of Maikuben brown coal combustion in the heating boiler “Kamkor-300”

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