{"title":"小型焚化炉结合加热系统的能源、能源、经济、环境和计算流体动力学(CFD)评估:一项进展研究","authors":"Nattaporn Chaiyat, Chaithawat Kaewmueang","doi":"10.9734/bpi/nvst/v2/12154d","DOIUrl":null,"url":null,"abstract":"This research presents a very small incinerator combined with heating production (VICH). The objective of this study, a novel VICH system is designed, simulated, tested, and analyzed in terms of the computational fluid dynamics (CFD), energy, economic, environmental, and exergy (4E-CFD) analysis methods. The CFD assessment using three hot fluids—hot water, steam, and hot oil—the results implied that hot water was the best working fluid at an increased temperature of 116.57 °C for integration with an organic Rankine cycle (ORC). Moreover, the testing results implied that a refuse-derived fuel (RDF) at a low heating value of 16.62 MJ/kg could increase the hot water temperature to 111.18 °C, which was close to the CFD simulation result. The energy and exergy efficiencies were approximately 23.35% and 20.93%, respectively. A life cycle assessment (LCA) at a functional unit of 1 kgRDF-1 and a lifespan of 20 y found a climate change of 3.30E-03 kg CO2 eq, an ozone depletion of 1.52E-10 kg CFC-11 eq, a particulate matter formation of 8.36E-06 kg PM10 eq, a terrestrial acidification of 1.30E-05 kg SO2 eq, a freshwater eutrophication of 1.83E-06 kg P eq, a human toxicity of 1.81E-03 kg 1,4 DB eq, a terrestrial ecotoxicity of 2.25E-07 kg 1,4 DB eq, a freshwater ecotoxicity of 1.04E-04 kg 1,4 DB eq, a fossil depletion of 8.02E-04 kg oil eq, and a metal depletion of 6.69E-04 kg Fe eq. The LCA impacts were driven from 36.07% construction, 63.41% operations, 0.52% landfill decommissioning and 3.99% recycling. In the economic results, the levelized cost of the waste disposal combined heating process was approximately 0.006 USD/kgRDF.","PeriodicalId":192378,"journal":{"name":"New Visions in Science and Technology Vol. 2","volume":"204 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Energy, Exergy, Economic, Environmental and Computational fluid Dynamics (CFD) Assessment of a Very Small Incinerator Combined with a Heating System: An Advanced Study\",\"authors\":\"Nattaporn Chaiyat, Chaithawat Kaewmueang\",\"doi\":\"10.9734/bpi/nvst/v2/12154d\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This research presents a very small incinerator combined with heating production (VICH). The objective of this study, a novel VICH system is designed, simulated, tested, and analyzed in terms of the computational fluid dynamics (CFD), energy, economic, environmental, and exergy (4E-CFD) analysis methods. The CFD assessment using three hot fluids—hot water, steam, and hot oil—the results implied that hot water was the best working fluid at an increased temperature of 116.57 °C for integration with an organic Rankine cycle (ORC). Moreover, the testing results implied that a refuse-derived fuel (RDF) at a low heating value of 16.62 MJ/kg could increase the hot water temperature to 111.18 °C, which was close to the CFD simulation result. The energy and exergy efficiencies were approximately 23.35% and 20.93%, respectively. A life cycle assessment (LCA) at a functional unit of 1 kgRDF-1 and a lifespan of 20 y found a climate change of 3.30E-03 kg CO2 eq, an ozone depletion of 1.52E-10 kg CFC-11 eq, a particulate matter formation of 8.36E-06 kg PM10 eq, a terrestrial acidification of 1.30E-05 kg SO2 eq, a freshwater eutrophication of 1.83E-06 kg P eq, a human toxicity of 1.81E-03 kg 1,4 DB eq, a terrestrial ecotoxicity of 2.25E-07 kg 1,4 DB eq, a freshwater ecotoxicity of 1.04E-04 kg 1,4 DB eq, a fossil depletion of 8.02E-04 kg oil eq, and a metal depletion of 6.69E-04 kg Fe eq. The LCA impacts were driven from 36.07% construction, 63.41% operations, 0.52% landfill decommissioning and 3.99% recycling. In the economic results, the levelized cost of the waste disposal combined heating process was approximately 0.006 USD/kgRDF.\",\"PeriodicalId\":192378,\"journal\":{\"name\":\"New Visions in Science and Technology Vol. 2\",\"volume\":\"204 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-08-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Visions in Science and Technology Vol. 2\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.9734/bpi/nvst/v2/12154d\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Visions in Science and Technology Vol. 2","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.9734/bpi/nvst/v2/12154d","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
本研究提出了一个非常小的焚烧炉结合加热生产(VICH)。基于计算流体力学(CFD)、能源、经济、环境和火用(4E-CFD)分析方法,设计、模拟、测试和分析了一种新型的VICH系统。采用热水、蒸汽和热油三种热流体进行CFD评价,结果表明,在温度为116.57℃时,热水是与有机朗肯循环(ORC)结合的最佳工质。此外,试验结果表明,在16.62 MJ/kg的低热值下,垃圾衍生燃料(RDF)可以将热水温度提高到111.18℃,这与CFD模拟结果接近。能源效率和火用效率分别约为23.35%和20.93%。生命周期评估(LCA)的功能单位1 kgRDF-1和寿命20 y发现气候变化为3.30 e 03公斤二氧化碳情商,1.52平台以及公斤CFC-11 eq的臭氧损耗,颗粒物形成8.36 e-06公斤PM10 eq,陆地酸化1.30 e-05公斤二氧化硫情商,淡水富营养化e-06公斤1.83 P情商,一个人类的毒性1.81 e 03公斤1,4 DB情商,陆地生态毒性2.25 e-07公斤1,4 DB情商,淡水生态毒性1.04 e-04公斤1,4 DB情商,化石消耗为8.02E-04 kg oil当量,金属消耗为6.69E-04 kg Fe当量。LCA影响来自36.07%的建设、63.41%的运营、0.52%的垃圾填埋场退役和3.99%的回收利用。在经济结果中,垃圾处理联合加热工艺的平准化成本约为0.006 USD/kgRDF。
Energy, Exergy, Economic, Environmental and Computational fluid Dynamics (CFD) Assessment of a Very Small Incinerator Combined with a Heating System: An Advanced Study
This research presents a very small incinerator combined with heating production (VICH). The objective of this study, a novel VICH system is designed, simulated, tested, and analyzed in terms of the computational fluid dynamics (CFD), energy, economic, environmental, and exergy (4E-CFD) analysis methods. The CFD assessment using three hot fluids—hot water, steam, and hot oil—the results implied that hot water was the best working fluid at an increased temperature of 116.57 °C for integration with an organic Rankine cycle (ORC). Moreover, the testing results implied that a refuse-derived fuel (RDF) at a low heating value of 16.62 MJ/kg could increase the hot water temperature to 111.18 °C, which was close to the CFD simulation result. The energy and exergy efficiencies were approximately 23.35% and 20.93%, respectively. A life cycle assessment (LCA) at a functional unit of 1 kgRDF-1 and a lifespan of 20 y found a climate change of 3.30E-03 kg CO2 eq, an ozone depletion of 1.52E-10 kg CFC-11 eq, a particulate matter formation of 8.36E-06 kg PM10 eq, a terrestrial acidification of 1.30E-05 kg SO2 eq, a freshwater eutrophication of 1.83E-06 kg P eq, a human toxicity of 1.81E-03 kg 1,4 DB eq, a terrestrial ecotoxicity of 2.25E-07 kg 1,4 DB eq, a freshwater ecotoxicity of 1.04E-04 kg 1,4 DB eq, a fossil depletion of 8.02E-04 kg oil eq, and a metal depletion of 6.69E-04 kg Fe eq. The LCA impacts were driven from 36.07% construction, 63.41% operations, 0.52% landfill decommissioning and 3.99% recycling. In the economic results, the levelized cost of the waste disposal combined heating process was approximately 0.006 USD/kgRDF.