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Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

《能源前沿（英文）》 2017年 第11卷 第4期   页码 503-509 doi: 10.1007/s11708-017-0515-1

摘要： The present paper aims at exploring a hybrid absorption-compression heat pump (HAC-HP) to upgrade and recover the industrial waste heat in the temperature range of 60°C–120°C. The new HAC-HP system proposed has a condenser, an evaporator, and one more solution pump, compared to the conventional HAC-HP system, to allow flexible utilization of energy sources of electricity and waste heat. In the system proposed, the pressure of ammonia-water vapor desorbed in the generator can be elevated by two routes; one is via the compression of compressor while the other is via the condenser, the solution pump, and the evaporator. The results show that more ammonia-water vapor flowing through the compressor leads to a substantial higher energy efficiency due to the higher quality of electricity, however, only a slight change on the system exergy efficiency is noticed. The temperature lift increases with the increasing system recirculation flow ratio, however, the system energy and exergy efficiencies drop towards zero. The suitable operation ranges of HAC-HP are recommended for the waste heat at 60°C, 80°C, 100°C, and 120°C. The recirculation flow ratio should be lower than 9, 6, 5, and 4 respectively for these waste heat, while the temperature lifts are in the range of 9.8°C–27.7 °C, 14.9°C–44.1 °C, 24.4°C–64.1°C, and 40.7°C–85.7°C, respectively, and the system energy efficiency are 0.35–0.93, 0.32–0.90, 0.25–0.85, and 0.14–0.76.

关键词： absorption compression     high temperature heat pump     efficiency     industrial waste heat     thermodynamic analysis    

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Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

《能源前沿（英文）》 2017年 第11卷 第4期   页码 414-436 doi: 10.1007/s11708-017-0507-1

摘要： Absorption heat pump attracts increasing attention due to its advantages in low grade thermal energy utilization. It can be applied for waste heat reuse to save energy consumption, reduce environment pollution, and bring considerable economic benefit. In this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed. In the first part, different absorption heat pump cycles are classified and introduced. Absorption heat pumps for heat amplification and absorption heat transformer for temperature upgrading are included. Both basic single effect cycles and advanced cycles for better performance are introduced. In the second part, different working pairs, including the water based working pairs, ammonia based working pairs, alcohol based working pairs, and halogenated hydrocarbon based working pairs, for absorption heat pump are classified based on the refrigerant. In the third part, the applications of the absorption heat pump and absorption heat transformer for waste heat reuse in different industries are introduced. Based on the reviews in the three aspects, essential summary and future perspective are presented at last.

关键词： absorption     heat pump     heat transformer     waste heat     working pair    

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Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

《环境科学与工程前沿（英文）》 2012年 第6卷 第4期   页码 575-587 doi: 10.1007/s11783-011-0344-0

摘要： Sustainable waste management in the industrial ecology perspective brings enormous challenges to the existing methodology of waste analysis at the industrial park (IP) scale. In this study, a four-step method was proposed for industrial solid waste (ISW) flow analysis of eco-industrial parks (EIPs) and applied to two IPs in eastern China. According to a park-wide census of 619 industrial enterprises and 105 questionnaires by a survey from 2006 to 2008, the results indicated that: 1) at the enterprise scale, more than 60% of enterprises were small-ISW-generation enterprises which encountered great difficulties on effective waste management; 2) at the IP scale, though the two IPs have set up their own environmental management systems and passed the ISO 14001 certification, the efficiencies of the ISW management systems have yet to be improved in the industrial ecology perspective; and 3) at the regional scale, more than 97% of ISW flowed within the provincial region, indicating that the provincial governments prevented the wastes from flowing into their own “back yard”. Effective waste management should be placed in a broader perspective. Approaches to sustainable waste management may include wastes exchange, efficient waste and information flow, virtual EIP, waste minimization clubs and regionalization of waste management.

关键词： industrial solid waste     waste flow analysis     eco-industrial parks     sustainable waste management     “not in my back yard”    

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Recovery of waste heat in cement plants for the capture of CO

Ruifeng DONG, Zaoxiao ZHANG, Hongfang LU, Yunsong YU

《化学科学与工程前沿（英文）》 2012年 第6卷 第1期   页码 104-111 doi: 10.1007/s11705-011-1166-0

摘要： Large amounts of energy are consumed during the manufacturing of cement especially during the calcination process which also emits large amounts of CO . A large part of the energy used in the making of cement is released as waste heat. A process to capture CO by integrating the recovery and utilization of waste heat has been designed. Aspen Plus software was used to calculate the amount of waste heat and the efficiency of energy utilization. The data used in this study was based on a dry process cement plant with a 5-stage preheater and a precalciner with a cement output of 1 Mt/y. According to the calculations: 1) the generating capacity of the waste heat recovery system is 4.9 MW. 2) The overall CO removal rate was as high as 78.5%. 3) The efficiency of energy utilization increased after the cement producing process was retrofitted with this integrated design.

关键词： cement industry     waste heat     recovery     utilization     CO2 removal    

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Efficient use of waste heat and solar energy: Technologies of cooling, heating, power generation andheat transfer

Ya-Ling HE, Ruzhu WANG, Anthony Paul ROSKILLY, Peiwen LI

《能源前沿（英文）》 2017年 第11卷 第4期   页码 411-413 doi: 10.1007/s11708-017-0525-z

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Valorization of agro-industrial fruit peel waste to fluorescent nanocarbon sensor: Ultrasensitive detection

《环境科学与工程前沿（英文）》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1461-z

摘要：

• Transformation of agro-industrial waste to value-added material via green chemistry.

关键词： Agro-industrial waste     Orange peel     Valorization     Nanodiamond-like carbon     Atropine sulphate     Fluorescence sensing    

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Experimental investigation and feasibility analysis of a thermophotovoltaic cogeneration system in high-temperature production processes

Jianxiang WANG, Hong YE, Xi WU, Hujun WANG, Xiaojie XU

《能源前沿（英文）》 2013年 第7卷 第2期   页码 146-154 doi: 10.1007/s11708-013-0253-y

摘要： The experimental - characteristics of a Si cell module in a thermophotovoltaic (TPV) system were investigated using SiC or Yb O radiator. The results demonstrate that the short-circuit current increases while the open-circuit voltage, along with the fill factor, decreases with the cell temperature when the radiator temperature increases from 1273 to 1573 K, leading to a suppressed increase of the output power of the system. The maximum output power density of the cell module is 0.05 W/cm when the temperature of the SiC radiator is 1573 K, while the electrical efficiency of the system is only 0.22%. The efficiency is 1.3% with a Yb O radiator at the same temperature, however, the maximum output power density drops to 0.03 W/cm . The values of the open-circuit voltage and the maximum output power obtained from the theoretical model conform to the experimental ones. But the theoretical short-circuit current is higher because of the existence of the contact resistance inside the cell module. In addition, the performance and cost of TPV cogeneration systems with the SiC or Yb O radiator using industrial high-temperature waste heat were analyzed. The system electrical efficiency could reach 3.1% with a Yb O radiator at 1573 K. The system cost and investment recovery period are 6732 EUR/kWel and 14 years, respectively.

关键词： thermophotovoltaic (TPV)     industrial waste heat     ytterbium oxide     system efficiency    

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Utilisation of waste heat from exhaust gases of drying process

Olga P. Arsenyeva,Lidija Čuček,Leonid L. Tovazhnyanskyy,Petro O. Kapustenko,Yana A. Savchenko,Sergey K. Kusakov,Oleksandr I. Matsegora

《化学科学与工程前沿（英文）》 2016年 第10卷 第1期   页码 131-138 doi: 10.1007/s11705-016-1560-8

摘要： Nowadays a lot of low-grade heat is wasted from the industry through the off- and flue-gasses with different compositions. These gases provide the sensitive heat with utilisation potential and latent heat with the components for condensation. In this paper, process integration methodology has been applied to the partly condensed streams. A hot composite curve that represents the gas mixture cooling according to equation of state for real gases was drawn to account the gas-liquid equilibrium. According to the pinch analysis methodology, the pinch point was specified and optimal minimal temperature difference was determined. The location of the point where gas and liquid phases can be split for better recuperation of heat energy within heat exchangers is estimated using the developed methodology. The industrial case study of tobacco drying process off-gasses is analysed for heat recovery. The mathematical model was developed by using MathCad software to minimise the total annualised cost using compact plate heat exchangers for waste heat utilisation. The obtained payback period for the required investments is less than six months. The presented method was validated by comparison with industrial test data.

关键词： exhaust gas     waste heat     process integration     plate heat exchanger    

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工业食品废物资源最终利用潜力的比较 Review

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

《工程（英文）》 2018年 第4卷 第3期   页码 371-380 doi: 10.1016/j.eng.2018.05.010

摘要：

全球大约有四分之一的可食用的食品被浪费。粮食浪费的驱动因素可以发生在生产、收获、分销、加工和消费者之间的任何阶段。尽管全球各地的驱动因素不同，但在北美、欧洲和亚洲的工业化地区有着相类似的情况。在这些地区，食物浪费最严重的情况发生在消费者环节，他们产生了大约51%的食品废物。因此，处理垃圾的重点就落在了处理城市固体废物上。在美国，食物垃圾占固体废物流重量的15％，产生二氧化碳当量排放量多达3.4×107 t，其处置费用高达19亿美元。利用食物垃圾中含有的碳、营养物和水分含量使垃圾转化成为高附加值产品，这是一种吸引人的减少浪费的方法。提取食物垃圾中的营养物质和生物活性物质，或者把两者转化为各种挥发性酸碱——包括乳酸、乙酸和丙酸，便可以利用这些机会回收废物并将产品出售以获得利润。废物转化为挥发性酸的过程可以与生物能源(如氢气和沼气)生产相结合。本文将工业食品废物升级的潜能比作特殊产品或者甲烷。高价值利用食品垃圾可以减轻大约1.9×108 t二氧化碳当量排放。以马铃薯皮为例，通过发酵技术将其转化为乳酸可每年节省56亿美元，也可以通过厌氧消化转化为甲烷，每年曾收9亿美元。回收食品废物潜在价值巨大，而食品废物价值化将有助于在各种食品工业的循环中形成回路。

关键词： 工业食品废弃物     食品废物价值化     废物回收价值增值    

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Exergy analysis and performance enhancement of isopropanol-acetone-hydrogen chemical heat pump

Min XU, Jun CAI, Xiulan HUAI

《能源前沿（英文）》 2017年 第11卷 第4期   页码 510-515 doi: 10.1007/s11708-017-0508-0

摘要： Exergy loss analysis was conducted to identify the irreversibility in each component of the isopropanol-acetone-hydrogen chemical heat pump (IAH-CHP). The results indicate that the highest irreversibility on a system basis occurs in the distillation column. Moreover, the effect of operating parameters on thermodynamic performances of the IAH-CHP was studied and the optimal conditions were obtained. Finally, the potential methods to reduce the irreversibility of the IAH-CHP system were investigated. It is found that reactive distillation is apromising alternative. The enthalpy and exergy efficiency of the IAH-CHP with reactive distillation increases by 24.1% and 23.2%, respectively.

关键词： waste heat reuse     chemical heat pump     exergy analysis     isopropanol    

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Biogas and its opportunities—A review

Panagiotis G. Kougias, Irini Angelidaki

《环境科学与工程前沿（英文）》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1037-8

摘要： Biogas production is a well-established technology primarily for the generation of renewable energy and also for the valorization of organic residues. Biogas is the end product of a biological mediated process, the so called anaerobic digestion, in which different microorganisms, follow diverse metabolic pathways to decompose the organic matter. The process has been known since ancient times and was widely applied at domestic households providing heat and power for hundreds of years. Nowadays, the biogas sector is rapidly growing and novel achievements create the foundation for constituting biogas plants as advanced bioenergy factories. In this context, the biogas plants are the basis of a circular economy concept targeting nutrients recycling, reduction of greenhouse gas emissions and biorefinery purposes. This review summarizes the current state-of-the-art and presents future perspectives related to the anaerobic digestion process for biogas production. Moreover, a historical retrospective of biogas sector from the early years of its development till its recent advancements gives an outlook of the opportunities that are opening up for process optimisation.

关键词： Anaerobic digestion     Biogas     Biowastes     Solid waste     Manure     Industrial waste    

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Simulation and experiments on a solid sorption combined cooling and power system driven by the exhaust wasteheat

Peng GAO, Liwei WANG, Ruzhu WANG, Yang YU

《能源前沿（英文）》 2017年 第11卷 第4期   页码 516-526 doi: 10.1007/s11708-017-0511-5

摘要： A solid sorption combined cooling and power system driven by exhaust waste heat is proposed, which consists of a MnCl sorption bed, a CaCl sorption bed, an evaporator, a condenser, an expansion valve, and a scroll expander, and ammonia is chosen as the working fluid. First, the theoretical model of the system is established, and the partitioning calculation method is proposed for sorption beds. Next, the experimental system is established, and experimental results show that the refrigerating capacity at the refrigerating temperature of –10°C and the resorption time of 30 min is 1.95 kW, and the shaft power is 109.2 W. The system can provide approximately 60% of the power for the evaporator fan and the condenser fan. Finally, the performance of the system is compared with that of the solid sorption refrigeration system. The refrigerating capacity of two systems is almost the same at the same operational condition. Therefore, the power generation process does not influence the refrigeration process. The exergy efficiency of the two systems is 0.076 and 0.047, respectively. The feasibility of the system is determined, which proves that this system is especially suitable for the exhaust waste heat recovery.

关键词： solid sorption     exhaust waste heat     combined cooling and power system     exergy efficiency    

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我国工业固体废物资源化战略研究

陈瑛,胡楠,滕婧杰,柳溪,李岩,凌江

《中国工程科学》 2017年 第19卷 第4期   页码 109-114 doi: 10.15302/J-SSCAE-2017.04.017

摘要：

本文针对我国工业固体废物产生量大、综合利用不足的突出问题，研究了我国资源开发、工业活动与工业固体废物产生的客观规律，以及未来发展趋势和资源化利用潜力。针对我国在工业固体废物资源化管理模式、法制体系建设、经济调节措施、技术及产业市场等方面存在的突出问题，结合我国生态文明建设中关于环境保护和资源循环利用的总体要求，提出了应将工业固体废物资源化战略作为我国资源、环境战略重要补充的总体战略目标，并提出了未来的发展路线图、阶段目标及重点任务。

关键词： 工业固体废物     资源化     环境管理     战略    

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Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

《环境科学与工程前沿（英文）》 2015年 第9卷 第4期   页码 731-737 doi: 10.1007/s11783-014-0687-4

摘要： Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue may be utilized to produce theoretically the ferrous materials. The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite residue. This paper proposes a novel method for disposing sodium-jarosite which can be used to synthesize PFS, a very important reagent for treating waste water. The method consists of a two-step leaching experimental procedures. The first step, pre-leaching process, is to remove impurity metals by strictly controlling the leaching conditions. The acid concentration of acidic water was adjusted according to the content of impurity metals in sodium-jarosite and the leaching temperature was controlled at 25°C. The second step is to decompose sodium-jarosite to provide enough ferric ions for synthesizing PFS, the concentrated sulfuric acid consumption was 0.8 mL·g sodium-jarosite and the leaching temperature was above 60°C. In the experiment, decomposing iron from sulfate sodium-jarosite can take the place of ferric martials for synthesizing PFS. Results show that the PFS synthesized from sodium-jarosite had a high poly-iron complex Fe (SO ) (OH) ·20H O. Further, the PFS product’s specifications satisfied the national standard of China.

关键词： sodium-jarosite residue     utilization     poly-ferric sulfate (PFS)    

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Nanomaterials for environmental burden reduction, waste treatment, and nonpoint source pollution control

Guobin SHAN , Rajeshwar D. TYAGI , Rao Y. SURAMPALLI , Tian C. ZHANG

《环境科学与工程前沿（英文）》 2009年 第3卷 第3期   页码 249-264 doi: 10.1007/s11783-009-0029-0

摘要： Nanomaterials are applicable in the areas of reduction of environmental burden, reduction/treatment of industrial and agricultural wastes, and nonpoint source (NPS) pollution control. First, environmental burden reduction involves green process and engineering, emissions control, desulfurization/denitrification of nonrenewable energy sources, and improvement of agriculture and food systems. Second, reduction/treatment of industrial and agricultural wastes involves converting wastes into products, groundwater remediation, adsorption, delaying photocatalysis, and nanomembranes. Third, NPS pollution control involves controlling water pollution. Nanomaterials alter physical properties on a nanoscale due to their high specific surface area to volume ratio. They are used as catalysts, adsorbents, membranes, and additives to increase activity and capability due to their high specific surface areas and nano-sized effects. Thus, nanomaterials are more effective at treating environmental wastes because they reduce the amount of material needed.

关键词： nanomaterials     industrial     agricultural     nonpoint source pollution     environmental burden reduction    

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标题 作者 时间 类型 操作

Numerical study of a hybrid absorption-compression high temperature heat pump for industrial waste heat

Zhiwei MA, Huashan BAO, Anthony Paul ROSKILLY

期刊论文

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

期刊论文

Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

期刊论文

Recovery of waste heat in cement plants for the capture of CO

Ruifeng DONG, Zaoxiao ZHANG, Hongfang LU, Yunsong YU

期刊论文

Efficient use of waste heat and solar energy: Technologies of cooling, heating, power generation andheat transfer

Ya-Ling HE, Ruzhu WANG, Anthony Paul ROSKILLY, Peiwen LI

期刊论文

Valorization of agro-industrial fruit peel waste to fluorescent nanocarbon sensor: Ultrasensitive detection

期刊论文

Experimental investigation and feasibility analysis of a thermophotovoltaic cogeneration system in high-temperature production processes

Jianxiang WANG, Hong YE, Xi WU, Hujun WANG, Xiaojie XU

期刊论文

Utilisation of waste heat from exhaust gases of drying process

Olga P. Arsenyeva,Lidija Čuček,Leonid L. Tovazhnyanskyy,Petro O. Kapustenko,Yana A. Savchenko,Sergey K. Kusakov,Oleksandr I. Matsegora

期刊论文

工业食品废物资源最终利用潜力的比较

Raymond RedCorn, Samira Fatemi, Abigail S. Engelberth

期刊论文

Exergy analysis and performance enhancement of isopropanol-acetone-hydrogen chemical heat pump

Min XU, Jun CAI, Xiulan HUAI

期刊论文

Biogas and its opportunities—A review

Panagiotis G. Kougias, Irini Angelidaki

期刊论文

Simulation and experiments on a solid sorption combined cooling and power system driven by the exhaust wasteheat

Peng GAO, Liwei WANG, Ruzhu WANG, Yang YU

期刊论文

我国工业固体废物资源化战略研究

陈瑛,胡楠,滕婧杰,柳溪,李岩,凌江

期刊论文

Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue

Zhongguo LI,Wenyi YUAN

期刊论文

Nanomaterials for environmental burden reduction, waste treatment, and nonpoint source pollution control

Guobin SHAN , Rajeshwar D. TYAGI , Rao Y. SURAMPALLI , Tian C. ZHANG

期刊论文