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Thematische Bibliographien / Exhaust tower / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Exhaust tower“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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1

Melikhov, R., and A. Leonova. "Extension towers - features of the design, technical and economic assessment and typical issues." Bulletin of Science and Practice 5, no. 3 (2019): 194–206. https://doi.org/10.33619/2414-2948/40/25.

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Discusses the features of the design Exhaust towers. The design and configuration of exhaust towers, types of carrier circuits, grating diagrams, diaphragm diagrams are considered. It describes the main structural solutions of the carrier tower, the supporting scheme of the gas exhaust trunk, the factory assembly types of connections of the carrier tower belts, support units and lattice attachment points for the tower belts. Recommendations on anticorrosive protection of steel structures of towers are presented, technical and economic assessment and issues of typification are presented.

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Melikhov, R., and A. Leonova. "Extension towers - features of the design, technical and economic assessment and typical issues." Bulletin of Science and Practice 5, no. 3 (2019): 194–206. http://dx.doi.org/10.33619/2414-2948/40/25.

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Discusses the features of the design Exhaust towers. The design and configuration of exhaust towers, types of carrier circuits, grating diagrams, diaphragm diagrams are considered. It describes the main structural solutions of the carrier tower, the supporting scheme of the gas exhaust trunk, the factory assembly types of connections of the carrier tower belts, support units and lattice attachment points for the tower belts. Recommendations on anticorrosive protection of steel structures of towers are presented, technical and economic assessment and issues of typification are presented.

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Kwon, Yong-Il. "A Study on the Ventilation Efficiency Improved by Airflow Characteristics of the Axial Fan Installed in Parallel at the Side Wall of the Narrow Exhaust Tower." International Journal of Air-Conditioning and Refrigeration 24, no. 04 (2016): 1650026. http://dx.doi.org/10.1142/s2010132516500267.

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A numerical study has been conducted to simulate airflow and ventilation characteristics in the exhaust tower installed to ventilation of the multi-story underground parking lot. It is the objective of the present study to identify ventilation problems and to suggest the flow direction modifications of the ventilation system with the axial fan to improve ventilation efficiency in the low-rise section of the exhaust tower. Numerical results on SVE4 (scale of ventilation efficiency NO.4) and local mean age of exhaust ports are presented along with the location of axial fan on the direction of sw

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Becker, B. R., and L. F. Burdick. "Effect of Drift Eliminator Design on Cooling Tower Performance." Journal of Engineering for Gas Turbines and Power 114, no. 4 (1992): 632–42. http://dx.doi.org/10.1115/1.2906636.

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In the use of wet cooling towers, drift refers to small droplets of circulating water that are carried out of the cooling tower by the saturated exhaust air. Inertial impaction separators, known as drift eliminators, are used to strip the water droplets from the exhaust air. To achieve peak cooling tower operating efficiency, it is desirable that losses in fan system performance due to the drift eliminators be minimized. Therefore, an experimental program was developed and executed to evaluate the effect of drift eliminator design on cooling tower fan system performance. Flow visualization stu

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Zhang, Tongtong, Xiaojun Zhou, Zhongsheng Zhang, and Fei Qu. "Research on the Influence Mechanism of Outdoor Wind Environment on Indoor Smoke Exhaust Efficiency in the Super-High-Rise Tower Crown Based on Airpak Simulation." Atmosphere 14, no. 6 (2023): 1048. http://dx.doi.org/10.3390/atmos14061048.

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The high wind pressure and velocity of the outdoor environment make super-high-rise tower crown space distinct from general tall through space. This segregation causes the crown space to be particularly prone to smoke short-circuiting influenced by the outside wind environment if a fire occurs indoors, and causes deficient smoke exhaust efficiency in a fire. The goal of this study was to investigate the general principle regarding the effect of the outdoor wind environment on smoke exhaust efficiency of such spaces under the crown space. We measured external wind direction and wind pressure in

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Lou, Tong, Bingtao Zhao, Zixuan Zhang, et al. "Separation of Exhaust Gas Pollutants from Urea Prilling Process with Gasified Biochar for Slow-Release Fertilizer: Adsorption Characteristics, Process Improvement, and Economic Assessment." Separations 12, no. 7 (2025): 173. https://doi.org/10.3390/separations12070173.

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To address severe ammonia gas and dust pollution coupled with resource waste in exhaust gases from urea prilling towers, a production process for gasified biochar-based slow-release fertilizer is proposed to achieve resource recovery of exhaust pollutants. Through phosphoric acid impregnation modification applied to gasified biochar, its ammonia gas adsorption capacity was significantly enhanced, with saturated adsorption capacity increasing from 0.61 mg/g (unmodified) to 32 mg/g. Coupled with the tower-top bag filter, the modified biochar combines with ammonia gas and urea dust in exhaust gas

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Wang, Zhongcheng, Xiaoyu Liu, and Ke Li. "Study of Absorbing CO2 from Emissions Using a Spray Tower." Atmosphere 13, no. 8 (2022): 1315. http://dx.doi.org/10.3390/atmos13081315.

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In order to reduce the environmental impact caused by CO2 emissions from ships and achieve the goal of green shipping, a spray tower using NaOH solution for the absorption of CO2 has been established in this paper. Using the characteristics of a 6135G128ZCa marine diesel engine, the CO2 absorption system was designed and mathematical models of CO2 absorption efficiency were developed. The effects of the variation in engine exhaust gas temperature, the concentration of NaOH solution, the exhaust gas velocity, different load conditions, and different nozzle types on the absorption efficiency of

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Rugescu, Radu D., Alina Bogoi, and Radu Cirligeanu. "Intricacy of the Transit Manifold Concept Paid-off by Computational Accuracy." Applied Mechanics and Materials 325-326 (June 2013): 142–47. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.142.

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Despite its intricacy the numerical method applied within the TRANSIT code proved successful in describing discontinuous, non-isentropic flows in rocket engines and solar-gravitational towers for green energy. A number of 0-D approaches are known to render some results in demonstrating the feasibility of the solar tower concept, or in unsteady simulation of transient phases in rocket engines. Computational efficiency is demonstrated by CFD simulation of the starting transients in ADDA solid rocket engines and in the SEATTLER solar mirror tower. The code is exclusively directed to unsteady flow

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Demina, Yulia E., and Anatolii A. Kudinov. "Frost protection of the mouth of the exhaust tower of the cooling tower with natural draft." Urban construction and architecture 12, no. 3 (2022): 170–75. http://dx.doi.org/10.17673/vestnik.2022.03.24.

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The article presents the results of numerical simulation of the protection system of the mouth of the exhaust tower of a cooling tower with natural traction from freezing. To prevent the formation of ice, it is proposed to install an atmospheric air supply system at the mouth of the cooling tower, which ensures the creation of a protective boundary layer at the inner wall of the cooling tower and allows you to separate the warm moist air of the cooling tower from the cold walls. To test the possibility of using such a scheme, a numerical simulation of the process was performed using the k-SST

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Hu, Jingling, Senlin Yang, Lu Zhong, Yingxin Yang, Xiaotu Hu, and Xueliang Xue. "Application of Cyclone Gas Cap Water Washing Device in Ultra Clean Discharge Treatment Technology of Exhaust Gas." E3S Web of Conferences 53 (2018): 04035. http://dx.doi.org/10.1051/e3sconf/20185304035.

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Exhaust gas treatment device of coal fired boiler has been upgraded with ultra clean discharge treatment technology, and the new cyclone gas cap washing device is applied in the second half of the desulfurzing tower systm.This new water scrubbing tray system is composed with water sprays, ceramic packing, cyclone gas cap and independent water tank, which is proven by field tests, has exceling effect on exhaust gas treatment, and can decrease concentration of aerosol in exhaust gas to below 5mg/Nm3 which is lower than the state discharge standard.

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KUDINOV, Anatoly A., and Yulia E. DEMINA. "CALCULATION OF THE DRAINAGE SYSTEM OF LEAVING FLUE GASES FROM THE TURBINE THROUGH THE COOLING TOWER." Urban construction and architecture 8, no. 1 (2018): 135–38. http://dx.doi.org/10.17673/vestnik.2018.01.23.

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The article presents result of a research a system of the venting of exhaust gases of the recovery boiler the gas turbine plant through the natural draft cooling tower in the environment. The use of this scheme allows the fl ue gases to lower the temperature of the circulating water at the outlet of the cooling tower to provide a deeper vacuum in the condenser steam turbine combined cycle power plant with simultaneous reduction of capital to build chimneys. As a result of the application of this scheme, an increase in the absolute electric effi ciency of turbines is achieved. As stated in Arti

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Shishatskii, Y. I., S. A. Nickel, A. A. Derkanosova, S. A. Tolstov, and S. L. Panchenko. "Improving the efficiency of cooling towers in the water cycle." Proceedings of the Voronezh State University of Engineering Technologies 84, no. 2 (2022): 34–38. http://dx.doi.org/10.20914/2310-1202-2022-2-34-38.

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Cooling towers are the main equipment of the water cycle. Cooling is carried out by the circulating water of heat exchange devices. The heated water is cooled in cooling towers by mixing with the air flow and again directed to use as a cooling agent. Cooling is carried out as a result of heat exchange. The driving force necessary to overcome the friction force of the flows, which interferes with the flow of air, is provided by injection or exhaust fans. The total driving force can be expressed as the sum of the individual driving forces in the air and water flows. The work with air mixing of t

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Xie, Guo Wei, Ming Ming Li, and Yi Wei Yang. "The Development and Applications of the Dust and Rhenium Recovery Integrated Device of Calcination Exhaust of Molybdenum Concentrate which Contain Rhenium." Advanced Materials Research 753-755 (August 2013): 40–43. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.40.

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A device, was used to recover dust and rhenium from molybdenum concentrate roasting exhaust gas, was developed. The device combine the self-swash dust catcher and spherical tray tower technology: the self-swash dust catcher was used to recover dust and rhenium; spherical tray tower was used to further dust and rhenium recovery and its application to engineering in practice. This was the first successful such devices used to recover dust and rhenium integration from calcination exhaust of molybdenum concentrate which contain rhenium in production practice. Through production practice, proved th

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Volkova, V. Ye, and M. S. Oleynik. "Finding the strain –stress state of engineering buildings. Optimization of structural solutions." Science and Transport Progress, no. 37 (June 25, 2011): 146–50. http://dx.doi.org/10.15802/stp2011/9433.

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Industrial pipes are an integral part of the complex structures of enterprises of metallurgical, chemical and other industries from the moment of their advent. Their purpose is to exhaust industrial wastes with residual content of hazardous substances on a considerable height. The paper presents the simulation results of stress-strain state of the tower based on the finite element method. Six different constructive solutions of the tower including options for using polymers are reviewed and analyzed.

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Muthu, Sella, C. Manoharan, and R. Senthilkumar. "THEORETICAL ANALYSIS OF A WET COOLING TOWER FOR FRESH WATER FROM PLUME AND ANALYZING AN INDUSTRIAL COOLING TOWER BASED ON RESULTS." JOURNAL OF ADVANCES IN CHEMISTRY 13, no. 10 (2017): 5892–98. http://dx.doi.org/10.24297/jac.v13i10.5870.

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A cooling tower is a heat rejection device which rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. The stream of saturated exhaust air leaving the cooling tower called the plume is visible when water vapor it contains condenses in contact with cooler ambient air, like the saturated air in one's breath fogs on a cold day. Under certain conditions, the cooling tower plume may present fogging or icing hazards to its surroundings and gives some environmental problems. To find the solution for this problem a cooling tower has been analysed based on a

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Liu, Quan, Yimin Zhu, Xiaojia Tang, et al. "Modeling and prediction of desulfurization efficiency for magnesium-based seawater exhaust gas clean system." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 233, no. 1 (2017): 325–32. http://dx.doi.org/10.1177/1475090217744905.

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The desulfurization efficiency is a major parameter of magnesium-based seawater exhaust gas clean system, which is one of the important means to control the sulfur dioxide emission from marine diesel engines. In this work, the RFlow, a computational fluid dynamics software, was used to analyze the flow field and sulfur dioxide absorption rate in the desulfurization tower of magnesium-based seawater exhaust gas clean system. The subdomain technology was applied for physics modeling and mesh generation of the desulfurization tower, and total number of the mesh is 2.25 million. The flow field mod

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Zhang, Hui Bin, Bin Li, and Ya Qing Jia. "Research on the Utilization of Exhaust Gas Heat for Boilers." Applied Mechanics and Materials 643 (September 2014): 322–27. http://dx.doi.org/10.4028/www.scientific.net/amm.643.322.

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The exhaust heat loss of the power plant boiler can account for more half of the boiler heat loss, exhaust gas temperature is 110~160 °Ccommonly, so the exhaust gas heat can be used to reduce the coal consumption, raise the economic benefits. Before and after the desulfurization tower of a 350 MW unit, there installs two plate heat exchangers, heating condensation water respectively, which can improve the thermal efficiency. With two heat exchangers working under the design conditions, a test was carried out based on a 350 WM unit simulation system in order to test the influence of system for

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Singh, Enderaaj, Sukanta Roy, and Yam Ke San. "Numerical Analysis of Exhaust Air Energy Extractor for Cooling Tower Applications." IOP Conference Series: Materials Science and Engineering 943 (November 3, 2020): 012035. http://dx.doi.org/10.1088/1757-899x/943/1/012035.

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19

Chow, T. T., Z. Lin, and J. P. Liu. "Effect of Condensing Unit Operation on Kitchen Exhaust at Residential Tower." Architectural Science Review 45, no. 1 (2002): 3–11. http://dx.doi.org/10.1080/00038628.2002.9696930.

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Liu, Jia You. "Application of Heat Pump Technology in Coal Mine." Advanced Materials Research 562-564 (August 2012): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1083.

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Heat pump is widely used in many fields, and it has advantages of energy-saving, environment-friendly and good economy, etc. Coal mine drainage, cooling water from cooling tower of power plant and exhaust air in coal mine have stable temperature throughout the year, and they are good heat (cold) source for heat pump. By analyzing technical and economic performance of heat pump, several ways and purposes of heat pump used in coal mine are proposed, and the technical processes are given. Application of heat pump to recycle energy from coal mine drainage, cooling water and exhaust air is benefici

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Patwary, Md Fahim Faisal, Isheka Agarwala, Rashik Ahmed, and Dipak Kanti Das. "Experimental Study of Water Collection from Plume of an Induced-Draft Counter-Flow Cooling Tower Using Space Charge Injection." MIST INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY 9 (June 27, 2021): 01–09. http://dx.doi.org/10.47981/j.mijst.09(01)2021.194(01-09).

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Plume collection from cooling towers can be a reliable solution to the water scarcity problem faced in many regions around the world. Meshes are one of the most proposed collectors in this regard that rely upon inertial collision for droplet capture and are inherently limited by aerodynamics. This study quantifies the effect of electrical forces on water collection from the plume of an Induced Draft Counter Flow (IDCF) Cooling Tower by introducing sets of copper tubes at the exit of the tower. The imparting of net charge to the exhaust plume by instigating space charge directs the vapor toward

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Sobecki, Christopher, Alfred Garrett, Brian d’Entremont, Ryan Connal, and Sebastian Aleman. "Assessment of Mechanical Draft Cooling Tower Thermal Emissions from Visual Images of Plumes." Atmosphere 14, no. 4 (2023): 754. http://dx.doi.org/10.3390/atmos14040754.

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Using a one-dimensional code, we computed the power (enthalpy discharge rate) of a twelve-cell mechanical draft cooling tower (MDCT) using over two hundred visible condensed water vapor plume volume measurements derived from images, weather data, and tower operating conditions. The plume images were simultaneously captured by multiple stationary digital cameras surrounding the cooling tower. An analysis technique combining structure from motion (SfM), a neural-network-based image segmentation algorithm, and space carving was used to quantify the volumes. Afterwards, the power output was comput

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O'Mahony, M., A. Lakhani, A. Stephens, J. G. Wallace, E. R. Youngs, and D. Harper. "Legionnaires' disease and the sick-building syndrome." Epidemiology and Infection 103, no. 2 (1989): 285–92. http://dx.doi.org/10.1017/s0950268800030648.

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SUMMARYIn October 1985, six cases of legionnaires' disease were associated with a police headquarters building. Four were amongst staff who worked in or visited the communications wing of the headquarters and two cases occurred in the local community. A case-control study implicated the operations room of the communications wing as the main area associated with infection. This wing was air-conditioned and smoke tracer studies showed that drift from the exhaust as well as from the base of the cooling tower entered the main air-intake which serviced the air-conditioning system.Legionella pneumop

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Singh, Enderaaj, Sukanta Roy, Yam Ke San, and Law Ming Chiat. "Performance Enhancement of VAWT using Diffuser for Energy Extraction from Cooling Tower Exhaust Air." MATEC Web of Conferences 377 (2023): 01022. http://dx.doi.org/10.1051/matecconf/202337701022.

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Renewable energy generation need to be accelerated to battle climate change and depletion of fossil fuel resources. Innovation to design wind recovery system which are efficient is vital to contribute green energy production. Many advancements in vertical axis wind turbines (VAWT) were made over the years however, it is still not as efficient as conventional turbines, and some countries does not have the luxury of strong consistent wind throughout the year. Therefore, this study focuses on extracting wind energy from unnatural sources, specifically for cooling tower exhaust air energy recovery

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Enderaaj Singh, Sukanta Roy, Yam Ke San, and Law Ming Chiat. "Optimisation of H-Darrieus VAWT Solidity for Energy Extraction in Cooling Tower Exhaust Systems." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 91, no. 2 (2022): 51–61. http://dx.doi.org/10.37934/arfmts.91.2.5161.

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The technologies surrounding renewable energy have been receiving surmountable attention to producing clean energy and reducing the dependency on depleting fossil fuel sources. In this context, research investigations on vertical axis wind turbines (VAWT) in free stream flow condition has been extensively conducted to improve the energy extraction efficiency from the wind. VAWTs are particularly advantageous in locations not suitable for conventional horizontal axis wind turbines (HAWT). However, the applications of VAWTs are still limited due to their lower performances compared to their coun

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Pamuk, Mehmet Turgay. "Analytical Modeling of Counter-Current Drying Process." International Journal of Thermodynamics 27, no. 2 (2024): 27–36. http://dx.doi.org/10.5541/ijot.1330933.

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In this analytical study, spray drying of detergent particles of diameters 0.4-1 mm by using counter-current air heated at around 300oC is investigated using Matlab©. Particle drying using hot gases is a mature process with a vast variety of applications ranging from dried food to powdered detergent production. The study shows a strong relationship between the drying process (final water content) and particle size, drying gas temperature, as well as the tower dimensions since cross-sectional area of the tower has a direct control on vertical gas velocity, thus heat and mass transfer coefficien

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Chong, Wen Tong, Ahmad Fazlizan, Sook Yee Yip, Micheal K. H. Leung, and Sin Chew Poh. "Performance Evaluation of a Wind Power-Augmented Device on an Onsite Exhaust Air Energy Recovery Wind Turbine." Advanced Materials Research 935 (May 2014): 126–29. http://dx.doi.org/10.4028/www.scientific.net/amr.935.126.

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This paper presents an idea on generating green energy by extracting discharged wind energy from a cooling tower. Two vertical axis wind turbines (VAWTs) integrated with a wind power-augmentation device are installed above a cooling tower to harness unnatural wind for electricity generation. The wind power-augmentation device is built with several guide-vanes and diffuser-plates to improve the performance of the VAWTs. Guide-vanes are designed to create a venturi effect and guide the on-coming wind stream to an optimum flow angle which is matched to the optimum angle of attack of the VAWTs. Di

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Qin, Y., and S. C. Kot. "Validation of computer modelling of vehicular exhaust dispersion near a tower block." Building and Environment 25, no. 2 (1990): 125–31. http://dx.doi.org/10.1016/0360-1323(90)90024-l.

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Najib, A. M., M. A. Mustafa, Z. Jamaludin, A. M. Zulfattah, and A. R. Hashim. "Regenerative Energy Air Flow System for Cooling Tower." Applied Mechanics and Materials 699 (November 2014): 498–503. http://dx.doi.org/10.4028/www.scientific.net/amm.699.498.

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Energy conservation and improvement in production efficiency are two greater challenges to modern-day manufacturing industries. The rapid growth as seen and forecasted for manufacturing sector has resulted in greater demand for electrical power and energy. This has given rise to the needs for alternative energy to supplement the existing energy resources. This paper proposes a SVAWT named as a regenerative energy air flow system that utilizes exhaust air flow speeds of a cooling tower in a manufacturing plant. The prototype is capable of voltage generation from 24 volts or more depending upon

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Kwon, Yong-Il, and Tae Hee Kim. "A Study on the Improvement of Exhaust Performance Provided by Axial Fan installed in Exhaust Tower with Narrow Space." Korean Journal of Air-Conditioning and Refrigeration Engineering 31, no. 8 (2019): 343–51. http://dx.doi.org/10.6110/kjacr.2019.31.8.343.

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Mu, Kang, Qiong Suo, Fangliang Ding, Changwei Jiang, Xiaofeng Zhang, and Jing Ye. "Field Measurements of Building Air-Conditioning Heat Rejection and the Thermal Environment in Urban Areas." Atmosphere 16, no. 1 (2025): 100. https://doi.org/10.3390/atmos16010100.

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In recent years, the surge in air-conditioning ownership and usage has led to significant heat rejection, impacting the surrounding atmosphere. Despite this, studies examining the spatiotemporal effects of air-conditioning heat rejection at a block scale remain limited. Additionally, comparative studies on the role of building areas with air-conditioning systems versus natural underlying surfaces in the urban thermal environment are relatively scarce. This study employs field measurements and ArcGIS technology to investigate the local thermal and humidity environments, as well as the spatiotem

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Wang, Yuanqing, and Wenyao Ma. "Study on Ship Exhaust Gas Denitrification Technology Based on Vapor-Phase Oxidation and Liquid-Phase Impingement Absorption." Processes 12, no. 9 (2024): 1798. http://dx.doi.org/10.3390/pr12091798.

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A system combining gas-phase oxidation and liquid-phase collision absorption for removing NO from marine diesel engine exhaust was proposed. This method was the first to utilize different physical states of the same mixed solution to achieve both pre-oxidation and impingement reduction absorption of exhaust gases. During the pre-oxidation stage, a mixture of (NH4)2S2O8 and urea solution was atomized into a spray using an ultrasonic nebulizer to increase the contact area between the oxidant and the exhaust gas, thereby efficiently pre-oxidizing the exhaust gas in the gas phase. In the liquid-ph

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Liu, Ji Dong, Zhong Zhe Dong, Jian Xin Xu, Ai Kang Guo, and Zhi Liang Tian. "Simulation and Optimization of Absorption Column of the Dual-Pressure Nitric Acid Production Process." Advanced Materials Research 634-638 (January 2013): 3830–34. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3830.

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Simulation of the absorption column was studied. A new mathematic model was developed and tested against the actual operation data. From this, the accuracy of the model was proved. The pressure, temperature and gas composition on absorption effect was discussed. And from the point of the practical production, more optimized operating conditions of the nitric acid absorption tower were showed. It makes the dilute acid concentration increase by 3 percent and the exhaust emission of NOx decrease by 45ppm.

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Rong, Feng, Li Xiuzhen, Zhao Xingcheng, and Fang Junfei. "Effects of the operation parameters of a closed-type heating tower on the performance of heating tower heat pump system." Energy Exploration & Exploitation 38, no. 5 (2020): 1983–97. http://dx.doi.org/10.1177/0144598720933698.

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The ventilator of the heating tower and the circulating pump of the anti-freeze solution are the main electrical equipment of a heating tower heat pump system, besides the compressor. By controlling the working frequencies of the ventilator of the heating tower and circulating pump of the anti-freeze solution, the effects of the operation parameters of a closed-type heating tower on its heat absorption and the performance of heating tower heat pump system were investigated under winter heat conditions. The results indicated that reducing the frequency of the circulating pump for the anti-freez

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Vogt, M., E. D. Nilsson, L. Ahlm, E. M. Mårtensson та C. Johansson. "The relationship between 0.25–2.5 μm aerosol and CO<sub>2</sub> emissions over a city". Atmospheric Chemistry and Physics 11, № 10 (2011): 4851–59. http://dx.doi.org/10.5194/acp-11-4851-2011.

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Abstract. Unlike exhaust emissions, non-exhaust traffic emissions are completely unregulated and in addition, there are large uncertainties in the non-exhaust emission factors required to estimate the emissions of these aerosols. This study provides the first published results of direct measurements of size resolved emission factors for particles in the size range 0.25–2.5 μm using a new approach to derive aerosol emission factors based on carbon dioxide (CO2) emission fluxes. Aerosol fluxes were measured over one year using the eddy covariance method at the top of a 105 m high communication t

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Zhou, Song, Dian-Tao Liu, Yuan-Qing Zhu, and Jin-Xi Zhou. "Study on Using Scrubbing Tower to Remove SO2 from Marine Diesel Engine Exhaust." Asian Journal of Chemistry 26, Supp. (2014): S9—S12. http://dx.doi.org/10.14233/ajchem.2014.19002.

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Wang, Zhan Guang, and Song Zhou. "Discussion on Ship Exhaust Gas Washing Desulfurization Technology." Applied Mechanics and Materials 472 (January 2014): 917–20. http://dx.doi.org/10.4028/www.scientific.net/amm.472.917.

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With the continuous development of shipping industry, exhaust gas p-ollution caused by ship emissions of sulfur dioxide is increasingly serious. In o-rder to meet the international maritime organizations (IMO) strict requirements on the water shipping environment, much attention of flue gas desulfurization technology research has been paid. But the ship desulfurization wastewater research is relatively little, water quality analysis and processing system of flue gas desulfurization wastewater research should be carried out. This paper mainly introduces the principle and characteristics of seaw

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Zhou, Tang, Zhang, and Li. "Thermodynamic Analysis of the Air-Cooled Transcritical Rankine Cycle Using CO2/R161 Mixture Based on Natural Draft Dry Cooling Towers." Energies 12, no. 17 (2019): 3342. http://dx.doi.org/10.3390/en12173342.

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Heat rejection in the hot-arid area is of concern to power cycles, especially for the transcritical Rankine cycle using CO2 as the working fluid in harvesting the low-grade energy. Usually, water is employed as the cooling substance in Rankine cycles. In this paper, the transcritical Rankine cycle with CO2/R161 mixture and dry air cooling systems had been proposed to be used in arid areas with water shortage. A design and rating model for mixture-air cooling process were developed based on small-scale natural draft dry cooling towers. The influence of key parameters on the system’s thermodynam

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LEVIN, STEPHEN M. "THE TENSEGRITY-TRUSS AS A MODEL FOR SPINE MECHANICS: BIOTENSEGRITY." Journal of Mechanics in Medicine and Biology 02, no. 03n04 (2002): 375–88. http://dx.doi.org/10.1142/s0219519402000472.

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The commonly accepted "tower of blocks" model for vertebrate spine mechanics is only useful when modeling a perfectly balanced, upright, immobile spine. Using that model, in any other position than perfectly upright, the forces generated will tear muscle, crush bone and exhaust energy. A new model of the spine uses a tensegrity-truss system that will model the spine right side up, upside-down or in any position, static or dynamic. In a tensegrity-truss model, the loads distribute through the system only in tension or compression. As in all truss systems, there are no levers and no moments at t

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Ding, Feng, and Xin Bo. "Analysis of Environmental Impact Factors of Natural Draft Cooling Towers in Power Plant." Advanced Materials Research 726-731 (August 2013): 1436–40. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.1436.

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Based on the requirements of Air Clean guidelines (VDI3784 and VDI3945) in German for cooling tower plume rise and dispersion model, a comparative analysis of atmospheric environmental impact of the cooling tower exhaust for different parameters. Parameters includes different source emission parameters and ambient humidity parameters. Then, analysis of the impact factors of plume rising height and the ground concentration according to the emission parameters. The results show that the most influential parameters are temperature and gas flow rate, relatively, the flue gas relative humidity and

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Zhou, Song, Zong Jiang Fu, and Cailing Li. "Design, Calculation and Experimental Analysis on Packed Tower of Marine Exhaust Gas Scrubbing Desulfurization." Asian Journal of Chemistry 26, Supp. (2014): S214—S216. http://dx.doi.org/10.14233/ajchem.2014.19050.

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Fujimoto, Takeshi, Minoru Sakata, and Hisanori Ohara. "Exhaust Gas Convection and Diffusion Analysis from Ventilation Tower in the Wide Urban Area." Proceedings of The Computational Mechanics Conference 2004.17 (2004): 639–40. http://dx.doi.org/10.1299/jsmecmd.2004.17.639.

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Anand, Gopalakrishnan, Donald C. Erickson, and Ellen Makar. "Subfreezing Absorption Refrigeration for Industrial CHP." International Journal of Air-Conditioning and Refrigeration 26, no. 04 (2018): 1850033. http://dx.doi.org/10.1142/s2010132518500335.

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The design and operation of an advanced absorption refrigeration unit (Thermochiller) as part of an industrial combined heat and power (CHP) system is presented. The unit is installed at a vegetable processing plant in Santa Maria, California. The overall integrated system includes the engine package with waste heat recovery, Thermochiller, cooling tower, and chilling load interface. The unique feature of the system is that both the exhaust and jacket heat are used to supply subfreezing refrigeration. To achieve the low refrigeration temperatures of interest to industrial applications, all com

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Lyu, Jiawen, Jian Zhang, and Tengyue Wang. "Study on water hammer protection of the siphon breaking structure in the water supply system." Journal of Water Supply: Research and Technology-Aqua 71, no. 3 (2022): 478–89. http://dx.doi.org/10.2166/aqua.2022.162.

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Abstract An appropriate water hammer protective scheme is a significant concern in the operation of water supply projects. According to the special terrain in the water supply project, which forms a siphon breaking structure at the end of the pipeline, three protective schemes were proposed and compared: single vacuum breaking valve (VBV) scheme, VBV and air valve scheme, and VBV and one-way surge tower scheme. Based on the control standards of pipe pressure, the three protective schemes were assessed in terms of suppressing the negative pressure caused by a pump trip accident. The results sho

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Youngblood, K., and S. Roy. "Performance Analysis of Multi Rotating Savonius Turbines for Exhaust Air Energy Recovery Through CFD Simulations." Journal of Physics: Conference Series 2051, no. 1 (2021): 012007. http://dx.doi.org/10.1088/1742-6596/2051/1/012007.

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Abstract Wind energy generation in adverse conditions has always been a challenge for the energy industry, especially at low wind speeds. Vertical axis wind turbines (VAWT) are promising solutions for low and turbulent wind conditions; however, their low efficiency has been a problem for their application and requires further research initiatives. In this research, a multi-Savonius VAWT arrangement is tested to use an unnatural wind source, a cooling tower exhaust, to improve the turbine performance. The analysis method was done by a series of two-dimensional computational fluid dynamics (CFD)

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Foster-Pegg, R. W. "A Small Air Turbine Power Plant Fired With Coal in an Atmospheric Fluid Bed." Journal of Engineering for Gas Turbines and Power 112, no. 1 (1990): 21–27. http://dx.doi.org/10.1115/1.2906472.

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An efficient, indirectly heated, steam-injected air turbine power or cogeneration plant, fired with coal in an atmospheric fluid bed, is described. The plant will meet all environmental standards and will generate about 35 MW. The plant offers a high power-to-steam ratio without requiring a condensing steam turbine and can operate efficiently without any export steam. Eliminating a condensing steam turbine, cooling tower, etc., reduces the capital cost and produces a low $/kW installation. If necessary, most of the water injected into the air turbine can be recovered from the exhaust air and r

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Duque, Carlos, Consuelo Montes, Felipe Bustamante, and Alejandro Ortiz. "Simulation of two alternatives for SO2 removal from wet cement kiln exhaust gases." Revista Facultad de Ingeniería Universidad de Antioquia, no. 56 (February 28, 2013): 49–57. http://dx.doi.org/10.17533/udea.redin.14652.

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This work aimed at simulating two processes for capturing sulfur dioxide from exhaust gases of wet clinker processes. The goal is to present a guide to cement manufacturers when selecting the most appropriate technology for wet processes in order to comply with environmental regulations. The available commercial technologies chosen for desulfurization process were: wet limestone and wet Cement Kiln Dust (CKD) removal processes. A commercial simulator (Aspen Plus v.2006.5) was used. The absorption tower -considered the core of the process- was simulated with an Aspen RadFrac model combined with

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Vogt, M., E. D. Nilsson, L. Ahlm, E. M. Mårtensson та C. Johansson. "The relationship between 0.25–2.5 μm aerosol and CO<sub>2</sub> emissions over a city". Atmospheric Chemistry and Physics Discussions 10, № 9 (2010): 21521–45. http://dx.doi.org/10.5194/acpd-10-21521-2010.

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Abstract. Unlike exhaust emissions, non-exhaust traffic emissions are completely unregulated and there are large uncertainties in the non-exhaust emission factors required to estimate the emissions of these aerosols. This study provides the first published results of direct measurements of size resolved emission factors for particles in the size range 0.25–2.5 μm using a new approach deriving aerosol emission factors from the CO2 emission fluxes. Because the aerosol and CO2 emissions have a common source and because the CO2 emission per fuel or traffic amount are much less uncertain than the a

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Antipov, Yuriy, Ivan Shatalov, Kirill Shkarin, et al. "MODELING AN EFFECTIVE SOLUTION FOR THE UTILIZATION OF SECONDARY ENERGY RESOURCES OF CCGT UNIT ON THE EXAMPLE OF CCGT-420T CHPP-16." Modeling of systems and processes 13, no. 3 (2020): 10–15. http://dx.doi.org/10.12737/2219-0767-2020-13-3-10-15.

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Nowadays, improving the efficiency of power plants by utilizing secondary energy resources is gaining more attention in the energy sector. In this paper, the combined cycle gas turbine (CCGT-420T) was considered, where exhaust heat from the main and auxiliary equipment is utilized, and sent to a water supply system through a closed-circuit heat exchanger, as a result, the heat transferred (Q = 6.4 MW) is rejected into the environment through a cooling tower. Moreover, an effective modelling method for utilizing heat in a closed cycle, using a steam compressing heat pump unit (HPU) is proposed.

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O'Doherty, T., M. Biffin, and N. Syred. "The Use of Tangential Offtakes for Energy Savings in Process Industries." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 206, no. 2 (1992): 99–109. http://dx.doi.org/10.1243/pime_proc_1992_206_206_02.

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Swirling flows occur in many processes within industry with little consideration given to pressure recovery. High tangential velocities occur in the exhaust nozzle which have been shown to persist for up to 20 pipe diameters downstream. This kinetic energy is dissipated by turbulence and friction and is unnecessarily lost. There is potential to recover this energy and reduce operating costs. This paper shows that a tangential offtake with associated diffuser can be used to recover up to 45 per cent of the pressure loss, with an accompanying reduction in energy consumption. It has particular ap

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