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Analog-experiment analysis of ash-deposition monitoring model of boiler economizers in power plants
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作者 程伟良 夏国栋 徐寿臣 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2005年第6期680-683,共4页
Ash deposition is a form of particulate fouling, and appears usually in boiler economizers. The ash deposition increases capital expenditure, energy input and maintenance costs. An analog experiment for monitoring ash... Ash deposition is a form of particulate fouling, and appears usually in boiler economizers. The ash deposition increases capital expenditure, energy input and maintenance costs. An analog experiment for monitoring ash deposition was performed from the analogous objective of a 410 t/h boiler economizer to verify the rationality and reliability of the ash-deposition-monitoring model presented in order to increase the security and economy in economizer running. The analog experiment platform is a tube-shell exchanger that conforms well to the conditions of a self-modeling area. The analog flue gas in the shell side is the heated air mixed with ash, and in the tube side the fluid is water heated by the flue gas. The fluid state in the water side and the flue gas side follows the second self-modeling area. A 4-factor-3-level orthogonal table was used to schedule 9 operation conditions of orthogonal experiment, with the 4 factors being heat power, flue gas velocity, ashes grain diameter and adding ashes quantity while the three levels are different values due to different position classes in every factor. The ash deposition thermal resistances is calculated by the model with the measure parameters of temperature and pressure drop. It shows that the values of the ash deposition thermal resistances gradually increase up to a stable state. And the experimental results are reliable by F testing method at α= 0.001. Therefore, the model can be applied in online monitoring of ash deposition in a boiler economizers in power plants and provides scientific decision on ash deposition prediction and sootblowing. 展开更多
关键词 thermal power engineering monitoring model ash deposition orthogonal experiment boiler economizer tube-shell exchanger
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Thermodynamic Analysis of Low Pressure Economizer in the 3rd Stage Project of Longkou Power Plant
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作者 Xue MingshanNorthwest Electric Power Design InstituteXu YongkangXi’an Jiaotong University 《Electricity》 1996年第3期10-13,共4页
Based on the calculation and analysis of energy-saving benefit under various operating conditions, and the investment payback period for the low pressure economizer of the 3rd stage project of Longkou Power Plant, the... Based on the calculation and analysis of energy-saving benefit under various operating conditions, and the investment payback period for the low pressure economizer of the 3rd stage project of Longkou Power Plant, the optimum operating conditions of the system and its reasonable heating surface are defined, and the feasibility of the design alternative of the low pressure economizer system is verified. 展开更多
关键词 low PRESSURE economizeR THERMAL system THERMAL ECONOMY analysis.
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Acoustic Resonance in Exhaust Gas Economizer Tube Bundles Prediction and Suppression of Resonance
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作者 Satoru Okamoto 《Journal of Mechanics Engineering and Automation》 2014年第10期770-780,共11页
The tendency for air column resonance generation in structures with a constant volume behind a tube array like that of an exhaust gas economizer has been reported, but many points remain unclear with respect to the me... The tendency for air column resonance generation in structures with a constant volume behind a tube array like that of an exhaust gas economizer has been reported, but many points remain unclear with respect to the mechanism and conditions that generate acoustical resonance. When acoustical resonance is generated, in reality, prevention and suppression measures are implemented by inserting a baffle plate into the ducts through a process of trial and error. The purpose of this study is to clarify the mechanism of generation of acoustical resonance, and to establish an appropriate measure to prevent such resonance. Noise generated in an exhaust gas economizer was correlated with the flow inside the tube array and experimentally analyzed, and the mechanism for resonance generation was considered. In addition, the effectiveness of a baffle plate positioned in order to prevent resonance was investigated. We have successfully employed a single baffle plate to suppress resonance. 展开更多
关键词 Flow-induced vibration baffle plate aerodynamic acoustics resonance noise suppression exhaust gas economizer.
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An Investment Cost ,Analysis of Solar Hot Water System Combined with Economizer for Industry
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作者 Samnao Pansang Sarayooth Vaivudh 《Journal of Energy and Power Engineering》 2017年第1期31-36,共6页
A combination of solar hot water system with the economizer for heating the water that circulates in the hot water storage tank is presented with the objective to reduce and analyze the cost of investment. The solar c... A combination of solar hot water system with the economizer for heating the water that circulates in the hot water storage tank is presented with the objective to reduce and analyze the cost of investment. The solar collector area will be affected to the investment cost of the solar hot water system. A combined system can be reduced the cost of solar collector by using the waste heat from the economizer to produce the hot water for reaching the requirement of the industry. In this paper the economizer installs in the boiler stack of the industry and produces hot water at 60 ℃ of 5,400 liter per day and the solar hot water system produces the hot water at the same temperature of 6,100 liter per day. The analysis is proposed by determining the solar collector plate area from the data and calculation. Investment cost of the system is 151,000 baht for the solar hot water system of 110,000 baht and the economizer of 410,000 baht for producing the total hot water of 115,000 liter per day. 展开更多
关键词 Investment cost analysis solar hot water system economizer.
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What Can Europe Learn from a More Open China?
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作者 THOMAS KARLSSON 《China Today》 2026年第2期40-42,共3页
China’s commitment to high-standard opening-up during its 15th Five-Year Plan period offers Europe an alternative approach to economic resilience.IN medical practice,a wise doctor does not treat a fever by plunging t... China’s commitment to high-standard opening-up during its 15th Five-Year Plan period offers Europe an alternative approach to economic resilience.IN medical practice,a wise doctor does not treat a fever by plunging the patient into an ice bath.The sudden shock may lower the temperature,but it risks systemic collapse.Instead,the proper treatment should support the body’s own resilience,combat the infection. 展开更多
关键词 systemic collapse OPENNESS high standard opening up economic resilience ice baththe medical practice economic resiliencein
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The Ice Industry Is Red Hot
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作者 GAO MENG LI CHUNYU YANG FAN 《China Today》 2026年第2期26-29,共4页
China’s winter sports boom creates jobs and spurs economic growth,bringing substantial benefit to the general public,local governments,and businesses.CHINA’s ice and snow economy,riding on the winter sports boom,is ... China’s winter sports boom creates jobs and spurs economic growth,bringing substantial benefit to the general public,local governments,and businesses.CHINA’s ice and snow economy,riding on the winter sports boom,is stimulating consumption across the country,fueling regional development and creating new industrial ecosystems.This trend perfectly matches one of China’s key tasks for 2026. 展开更多
关键词 economic growth winter sports ice snow economyriding winter sports boom regional development job creation economic growthbringing ice snow economy
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China’s Economy Builds Momentum for High-Quality Growth
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作者 Zhang Hui 《China Today》 2026年第1期2-2,共1页
As the global economy navigates through a complex landscape of uncertainty and shifting dynamics,the Chinese economy stands out for its remarkable resilience,inherent vitality,and steadfast commitment to a transformat... As the global economy navigates through a complex landscape of uncertainty and shifting dynamics,the Chinese economy stands out for its remarkable resilience,inherent vitality,and steadfast commitment to a transformative,high-quality development path.The latest economic indicators,strategic policy guidance from the Central Economic Work Conference,and a surge in international confidence collectively present a picture of an economy not merely recovering,but actively building its new growth engines.China is transitioning towards a more sustainable and innovation-driven model,with new quality productive forces playing an increasingly prominent role. 展开更多
关键词 economic resilience sustainable growth innovation driven model international confidence economic indicatorsstrategic policy guidance high quality development
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Rediscovering Analytical Rigor in Traditional Economic Thought:The“Second Integration”and the Making of a Chinese School of Economics
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作者 Cheng Lin Zhou Rui Chen Xudong 《China Economist》 2026年第1期54-90,共37页
Does traditional Chinese economic thought possess genuine analytical rigor?This question lies at the heart of any serious evaluation of its theoretical value and historical significance.It also matters for understandi... Does traditional Chinese economic thought possess genuine analytical rigor?This question lies at the heart of any serious evaluation of its theoretical value and historical significance.It also matters for understanding how best to preserve,build on its remarkable achievements,and develop its intellectual legacy.Critics such as Schumpeter and Taylor have long argued that the economic reasoning found in ancient China cannot compare with that of classical Greece or medieval Europe.Yet this view often reflects the narrow assumptions of mainstream economics,defining analysis almost entirely in terms of market exchange.As a result,it tends to overlook traditions built around statecraft,governance,and the management of economic order.A careful re-examination and Sino-Western comparative analysis of key thinkers-including Mencius,Guanzi,and Sima Qian-tells a different story.Rooted in China’s distinctive cultural and philosophical heritage,traditional Chinese economic thought not only contains the analytical dimensions(as defined by Schumpeter)but also displays a broader and more diverse set of economic reasoning.Notably,its systematic depth and intellectual precision were,in many respects,remarkably advanced.Therefore,advancing the construction of a Chinese school of economics in the new era under the framework of the“Second Integration”,i.e.,integrating the basic tenets of Marxism with China’s fine traditional culture,should,and indeed can draw essential insights from this analytical tradition. 展开更多
关键词 traditional Chinese economic thought analytical rigor Second Integration Chinese economics
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China’s Snow Boom:From Olympic Dream to Economic Engine
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作者 ZACHARY G.LUNDQUIST 《China Today》 2026年第2期36-39,共4页
How is a nation’s embrace of snow and ice shaping a new cultural identity and igniting a multi-trillion-yuan economic boom?ADRIAAN Smit now cannot imagine a life without snowboarding,a passion that has become central... How is a nation’s embrace of snow and ice shaping a new cultural identity and igniting a multi-trillion-yuan economic boom?ADRIAAN Smit now cannot imagine a life without snowboarding,a passion that has become central to his world.He is excited to witness how winter sports are fostering a new winter culture in China.Listening to Smit speaking so enthusiastically about the slopes,one might assume he was raised in a region where snow sports are a way of life,but the fact is quite the contrary. 展开更多
关键词 winter sports SNOWBOARDING China Olympic dream snow sports economic boom cultural identity
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Feeling the Fragrance
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作者 YANG SHUANGSHUANG 《China Today》 2026年第1期34-35,共2页
Blending tradition with modern elements,Songyang’s tea industry attracts young entrepreneurs to revive culture and drive economic growth.SONGYANG has a long and rich history of tea cultivation and production.The coun... Blending tradition with modern elements,Songyang’s tea industry attracts young entrepreneurs to revive culture and drive economic growth.SONGYANG has a long and rich history of tea cultivation and production.The county became famous for its tea as early as the Three Kingdoms period(220-280).Today,this land is home to over 10,000 hectares of ecofriendly tea plantations.One in every three Songyang residents is involved in the tea industry,whose full industrial chain value now exceeds RMB 13.5 billion. 展开更多
关键词 TEA cultural revival economic growth young entrepreneurs modern elements TRADITION production tea cultivation
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The Rise of a New Growth Engine:Ice and Snow
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《China Today》 2026年第2期24-25,共2页
China’s winter sports boom is expanding beyond its traditional northern heartlands,fueling a dynamic ice-snow economy and culture nationwide.This seasonal surge is driven by sustained investment and innovative develo... China’s winter sports boom is expanding beyond its traditional northern heartlands,fueling a dynamic ice-snow economy and culture nationwide.This seasonal surge is driven by sustained investment and innovative development models that are turning cold climates into hot economic opportunities. 展开更多
关键词 cold climates winter sports innovative development models economic opportunities ice snow economy development models
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Groundwater hydrodynamics and supply sustainability in Punjab,Pakistan:A geological statistical approach using the GAMEAS algorithm based on data from 1105 boreholes
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作者 Muhammad Afzal Tie Liu +6 位作者 An-ming Bao Xi Chen Xiao-hui Pan Solange Uwamahoro Ahmad Mujta Adeel Ahmed Nadeem Asim Qayyum Butt 《China Geology》 2026年第1期44-59,共16页
Effective groundwater management is crucial for economic sustainable development,particularly as climate change and population growth increase the uncertainty of aquifer dynamics.Due to limited geological data,Punjab&... Effective groundwater management is crucial for economic sustainable development,particularly as climate change and population growth increase the uncertainty of aquifer dynamics.Due to limited geological data,Punjab's complex hydrogeological conditions and Quaternary alluvial deposits present significant challenges for groundwater management.This study employs cost-effective numerical techniques as alternatives to traditional methods to safeguard groundwater quality,quantity,and accessibility.It introduces an edit-embedded transition frequency model that integrates regional datasets and utilizes algorithms such as GAMEAS,MCMOD,and TSIM to evaluate aquifer heterogeneity and simulate spatial variations using one-dimensional and three-dimensional Markov chains.Findings show that sand exhibits the highest self-transition(33.112 m),indicating strong stability,followed by silt,clay,and gravel,suggesting overall hydrofacies stability both horizontally and vertically.The model's predictions are largely consistent with actual material distribution,with a slight under-prediction of clay(-0.750%)and an over-prediction of sand(2.985%),which accounts for 58.77%of the aquifer material.It also highlights significant heterogeneity in the northern mountainous regions and minor variations in the south.The study emphasizes Punjab's severe water crisis,with groundwater reserves of 3502.3 BCM,declining water levels(0.38–33.62 m),and low hydraulic conductivity,urging government action on rainwater harvesting and sustainable groundwater management policies. 展开更多
关键词 Groundwater management Economic sustainable development T-progs modelling Aquifer heterogeneity Groundwater sustainability Environment degradation Catchment recharging
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A Year of Solid Progress,A New Chapter Ahead
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作者 《China Today》 2026年第2期16-19,共4页
Chinese President Xi Jinping’s New Year message summarized an important year of steady progress as the country prepares to launch its 15th Five-Year Plan.“Our economic strength,scientific and technological abilities... Chinese President Xi Jinping’s New Year message summarized an important year of steady progress as the country prepares to launch its 15th Five-Year Plan.“Our economic strength,scientific and technological abilities,defense capabilities,and composite national strength all reached new heights.”declared President Xi Jinping in his 2026 New Year message on De-By CHINA TODAY cember 31,2025,offering a succinct summary of China’s development over the past year,marked by resilience,progress,and renewed confidence as the country stands at the threshold of a new development phase. 展开更多
关键词 composite national strength CONFIDENCE PROGRESS economic strength five year plan scientific technological abilities resilience defense capabilities
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Setting the Path for Further Development
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《ChinAfrica》 2026年第1期2-2,共1页
Guangdong Province in south China is a pacesetter,pioneer,and pilot zone of China’s reform and opening up.Of the first batch of four special economic zones established in 1980,which was a milestone in China’s reform... Guangdong Province in south China is a pacesetter,pioneer,and pilot zone of China’s reform and opening up.Of the first batch of four special economic zones established in 1980,which was a milestone in China’s reform and opening up,three are in Guangdong Province. 展开更多
关键词 special economic zones reform opening up Guangdong province
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From Pigsties to Pitchers:Xujiadai Village turns baseball into a driver of economic growth,cultural vitality,and community pride
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作者 LIU TING 《ChinAfrica》 2026年第2期25-27,共3页
In the countryside of east Zhejiang Province,a quiet village has hit a home run.Xujiadai,once a place known for pig farming and environmental pollution,is drawing visitors from across China with a sport still uncommon... In the countryside of east Zhejiang Province,a quiet village has hit a home run.Xujiadai,once a place known for pig farming and environmental pollution,is drawing visitors from across China with a sport still uncommon in the country:baseball. 展开更多
关键词 Xujiadai village economic growth environmental pollution environmental pollutionis BASEBALL East Zhejiang province community pride pig farming
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Collaborative Approaches to Poverty Reduction:Experts and o"cials from China and abroad exchange views on cooperation and sustainable development at seminar
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作者 LU JIAJUN 《ChinAfrica》 2026年第2期34-35,共2页
The 17 Sustainable Development Goals(SDGs)for 2030,adopted by all United Nations member states in 2015,are facing a range of challenges.Factors such as climate change,regional conflicts and economic recession are havi... The 17 Sustainable Development Goals(SDGs)for 2030,adopted by all United Nations member states in 2015,are facing a range of challenges.Factors such as climate change,regional conflicts and economic recession are having a significant impact,particularly on global poverty governance.As a platform for dialogue,exchange and technical cooperation,the 2025 International Seminar on Global Poverty Reduction Partnerships was held in Beijing on 10 December 2025. 展开更多
关键词 climate changeregional conflicts collaborative approaches China global poverty reduction OFFICIALS sustainable development goals sdgs economic recession experts
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Common Prosperity:A Goal for All Governments?
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作者 ROBERT WALKER 《China Today》 2026年第1期20-23,共4页
China’s“common prosperity”policy is a multidimensional pursuit of social and economic progress aimed at full realization by 2050.A CHIEVING common prosperity–prosperity that is universally shared–has been a longs... China’s“common prosperity”policy is a multidimensional pursuit of social and economic progress aimed at full realization by 2050.A CHIEVING common prosperity–prosperity that is universally shared–has been a longstanding aspiration of the Chinese government. 展开更多
关键词 multidimensional pursuit Chinese government chieving common prosperity prosperity social economic progress common prosperity universal sharing
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Targeting Wallerian degeneration in glaucoma
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作者 Melissa Jöe Pete A.Williams 《Neural Regeneration Research》 2026年第2期693-694,共2页
Neurodegenerative diseases account for a large and increasing health and economic burden worldwide.With an increasingly aged population,this burden is set to increase.Optic neuropathies make up a large proportion of n... Neurodegenerative diseases account for a large and increasing health and economic burden worldwide.With an increasingly aged population,this burden is set to increase.Optic neuropathies make up a large proportion of neurodegenerative diseases with glaucoma being highly prevalent.Glaucoma is characterized by the progressive dysfunction and loss of retinal ganglion cells and their axons which make up the optic nerve.It is the leading cause of irreversible vision loss and affects an estimated 80 million people.The mammalian central nervous system is non-regenerative and,once lost or injured,retinal ganglion cells cannot regenerate an axon into the optic nerve under basal conditions.Thus,strategies that provide neuroprotection to stressed,dysfunctional,or dying retinal ganglion cells are likely to be of high therapeutic and translational value.Advancing age,genetics,and elevated intraocular pressure are all major risk factors for glaucoma,however,all clinically available glaucoma treatments focus on intraocular pressure management and do not directly address the neurodegenerative component of glaucoma. 展开更多
关键词 health burden neurodegenerative diseases aged population Wallerian degeneration GLAUCOMA vision loss economic burden retinal ganglion cells their axons
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All-Around Rural Revitalization Underway
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《China Today》 2026年第1期24-25,共2页
The CPC Central Committee’s Recommendations for Formulating the 15th Five-Year Plan for National Economic and Social Development place rural revitalization as a priority within the overall framework of modernization,... The CPC Central Committee’s Recommendations for Formulating the 15th Five-Year Plan for National Economic and Social Development place rural revitalization as a priority within the overall framework of modernization,clearly stating that agricultural and rural modernization has a major bearing on Chinese modernization as a whole and the outcomes it delivers. 展开更多
关键词 agricultural modernization rural modernization national economic development social development CPC Central Committee five year plan rural revitalization
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A Year of Deepening China-Africa Bonds--Political trust,economic collaboration and cultural exchanges further solidify China-Africa ties
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作者 HE WENPING 《ChinAfrica》 2026年第1期20-22,共3页
The year 2025 marks both the 25th anniversary of the Forum on China-Africa Cooperation(FOCAC)and the first year of implementation of the outcomes of the 2024 FOCAC Beijing Summit.Throughout the year,China has supporte... The year 2025 marks both the 25th anniversary of the Forum on China-Africa Cooperation(FOCAC)and the first year of implementation of the outcomes of the 2024 FOCAC Beijing Summit.Throughout the year,China has supported Africa in addressing historical injustices at diplomatic and political levels and firmly backed South Africa in hosting the G20 Leaders’Summit,further deepening China-Africa strategic mutual trust. 展开更多
关键词 Political Trust Forum China Africa Cooperation addressing historical injustices FOCAC China Africa Cooperation Strategic Mutual Trust Economic Collaboration Diplomatic Support
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