... improvement of the EPBT.Figure 5compares these emissions with those of conventional fuel-burning power plants, revealing the considerable environmental advantage of PV technologies The majority of GHG ... coal-powered plant emits per GWh about 1000 tonnes of CO2, 8 tonnes of SO2, 3 tonnes of NOx(nitrogen oxide), and 0.4 tonnes of particulates The emissions of Cd from heavy oil-burning power plants ... which of the two materials he evaluated, and their applications (i.e., façade, slanted roof, and flat roof), he arrived at figures of 39–110 g CO2-eq kWh−1of GHG emissions and 3–6 years of EPBT
Ngày tải lên: 30/12/2017, 12:56
... Trang 1Stability Analysis of Small Hydro Power PlantsModel Verification and Analysis of the Impacts of the Voltage Regulation System Ida Larsen Loen Master of Energy and Environmental Engineering ... requires a stable and safe power system and brings new concerns about power system stability and protection Several small hydro power plants have experienced problems related to power system stability ... presentation of power system stability, with focus on rotor angle stability and how the excitation system and voltage regulation can affect the damping of the power system Chapter 6 gives a description of
Ngày tải lên: 27/04/2020, 09:11
Costs of decommissioning nuclear power plants (TQL )
... removal of fuel, dismantling of plant and equipment, decontamination of structures and components, demolition of buildings, remediation of contaminated ground and recycling or disposal of the ... number of nuclear power plants have reached or are approaching their end of life as originally envisaged at the time of design Figure 1.1 shows the age distribution of operating nuclear civilian power ... 50-year operation of nuclear power plants 234 11.1: Summary of decommissioning stages 236 11.2: Evolution implied of the overall cost estimates (lifetime plan maturity curve) 241 List of tables 1.1:
Ngày tải lên: 07/07/2020, 13:28
enhancing the profitability of solar tower power plants through thermoeconomic analysis based on multi objective optimization
... yielding a trade-off of multiple optimal designs best comprising investment and profitability of the projects The analysis of these trade-off curves enables to have a range of solutions that ... the development of new concentrating solar power (CSP) plants is threatened by the relatively high costs of this technology, which is not yet competitive with other means of power generation, ... transient modeling of Rankine cycles for CSP plants [18] Off-design performance of the power block takes into account variations in efficiency and mass flows as a function of the turbine inlet
Ngày tải lên: 02/11/2022, 09:31
life cycle costs and environmental impacts of production and consumption of ready and home made meals
... costs and environmental impacts of productionand consumption of ready and home-made meals School of Chemical Engineering and Analytical Science, The Mill, Sackville Street, The University of Manchester, ... the costs of different appliances and sources of the ingredients These results are displayed inFig 8 The use of gas oven and hob (HM-5) instead of the electric because of the lower cost of natural ... unit and the composition of the meal in both studies are the same, to enable comparisons of different options for both the economic and environmental impacts Thus, the scope of the study is from‘cradle
Ngày tải lên: 02/11/2022, 14:23
modelling ex ante the economic and environmental impacts of genetically modified herbicide tolerant maize cultivation in europe
... decreases The pattern of two groups of countries in terms of potential environmental effects remains and calls for a better iden-tification of the subset of farmers with economic and environmental potential ... characteristics of the subset of farmers with potential for economic and environmental benefits has to be identified Although changes in the toxicity and amounts of herbicide use is one of the main environmental ... of the introduction of the GMHT maize technol-ogy In view of the variability of the environmental results across countries, this paper show that the environmental relevance of GMHT maize needs
Ngày tải lên: 02/11/2022, 14:27
Environmental impacts of selective laser melting
... inspection of alternative laser aiming systems (Chan 2006) allowed estimation of components Given that the impacts of this assembly were roughly 0.05% of total ReCiPe Trang 6Endpoint H/A impacts ... 0.3% of LCA impacts or 0.6% of embodied energy, further refinement was not deemed unnecessary Patterns of Machine Operation Many operation-dependent variables affect the environmen-tal impacts of ... from 59% in 1P|8%T|OFF|MECH to 7% in FULL|90%T|OFF|EDM Machinery’s share of ReCiPe points varied from 78% in 1P|8%T|OFF|MECH to 15% in FULL|90%T|OFF|EDM Aluminum powder’s fraction of total energy
Ngày tải lên: 24/11/2022, 17:48
Development of rice husk power plants based on clean development mechanism a case study in mekong river delta, vietnam (phát triển nhà máy điện trấu theo cơ chế phát triển sạ
... full costs of the Yali hydro power plant In the environmental analysis of Roy et al [27], they found an environmental benefit value of about 430,014 USD/year of using biomass power plants 3 Research ... development of these rice husk power plants The research recommends developing in the Mekong River Delta a group of five similar pilot rice husk power plants having a total installed capacity of 5×11 ... development of these rice husk power plants The research recommends developing in the Mekong River Delta a group of five sim-ilar pilot rice husk power plants having a total installed capacity of 5
Ngày tải lên: 18/02/2023, 06:51
Volume 2 wind energy 2 16 – environmental social benefits impacts of wind power
... considered as one of the most significant environmental impacts of wind power on nearby regions • Visual impacts – aesthetics It is also a very significant issue related to wind power plants • Impacts ... are often referred as low carbon or carbon Table 1 Main social and environmental benefits of wind power Avoided air pollution – reduction of CO2 emissions Reduction of water consumption Fossil fuels ... required to undertake The main environmental impacts of a wind farm are shown in Table 4 In the general case the most serious environmental impacts of wind power plants are related to noise, aesthetics,
Ngày tải lên: 30/12/2017, 14:21
Optimal design of PEM fuel cells to generate maximum power: A CFD study
... reflects the influence of the operating parameters on fuel cell performance to investigate the in situ total displacement and degree of the deformation of the polymer membrane of PEM fuel cells The ... analyses the impact of operating, design, and material parameters on fuel cell performance and get an optimal design for PEM fuel cells to generate maximum power To generate maximum power, the results ... is strongly recommended for fuel cell designed to operate with high power The cell power and efficiency remains constant for both case of higher and lower values of thermal conductivity Operating
Ngày tải lên: 05/09/2013, 14:58
Optimum sizing of steam turbines for concentrated solar power plants
... 3Figure 1 Principle of operation of parabolic trough system 2.2 Solar tower technology Solar towers (often called solar central receiver power plants) offer an alternative method of exploiting the ... selection and the sizing of the optimum steam turbine to be integrated in various capacities of CSP plants For the purpose of this analysis, the Steam Pro software module of the Thermoflow Suite 18 package ... this manner, CSP plants are capable of both reliably producing large quantities of power and, if they are part of a network with other renewable energies, compensating fluctuations of wind and PV
Ngày tải lên: 05/09/2013, 14:59
Environmental Impact of Products (EIPRO) Analysis of the life cycle environmental impacts related to the final consumption of the EU-25 pot
... Jansen (2006) Environmental impacts of products: a detailed review of studies Environmental impacts of products: a detailed review of studies Accepted for publication, Journal of Industrial ... the products on the basis of their (current) life cycle environmental impacts They will be identified on the basis of the environmental impacts of the whole volume of the product used The impact ... exist into the environmental impacts of products; • Chapter 5 forms the second main pillar of the study: it gives a detailed analysis of the environmental impacts of products in the 25, with the
Ngày tải lên: 23/03/2014, 08:21
Impacts of health and environmental consciousness on young female consumers’ attitude towards pptx
... belief that natural beauty products were environmentally more friendly Analysis of variance results In order to examine the impacts of both health and environmental consciousness on other selected ... 8perception of the importance of ‘no use of preservatives’ [F (3,205)= 4.12, P< 0.01] The two groups with high environmental consciousness scored significantly higher than the two groups with low environmental ... Trang 10a low level of health and environmental consciousness It is alsonoteworthy that among those with a low level of health conscious-ness, individuals with a high level of environmental consciousness
Ngày tải lên: 09/07/2014, 14:20
Introduction to ENVIRONMENTAL TOXICOLOGY Impacts of Chemicals Upon Ecological Systems - CHAPTER 2 ppsx
... indications of the interaction of a xenobiotic with the ecosystem. The examples listed are only a selection of the parameters that need to be understood for the explanation of the effects of a xenobiotic ... more subtle types of damage Properly developed, cytogenetic examinations may prove to be powerful and sensi-tive indicators of environmental contamination for certain classes of material A more ... measure of the health of an organism and is the principal indicator of the Darwinian fitness of an organism In a laboratory situation it certainly is possible to measure fecundity and the success of
Ngày tải lên: 10/08/2014, 20:20
Introduction to ENVIRONMENTAL TOXICOLOGY Impacts of Chemicals Upon Ecological Systems - CHAPTER 3 pot
... The x-axis is in units of weight to volume (concentration) or weight of toxicant per unit weight of animal (dose). Trang 4One of the primary reasons for conducting any type of toxicity test is to ... weight of toxicant per unit weight of animal (dose). Trang 5structure activity relationships Another weakness of the LC50, EC50, and IC50 is thatthey reflect the environmental concentration of the ... advantages to the use of a standard method or guideline in theevaluation of the toxicity of chemicals or mixtures, such as: Uniformity and comparability of test results. Allows replication of the result
Ngày tải lên: 10/08/2014, 20:20
Introduction to ENVIRONMENTAL TOXICOLOGY Impacts of Chemicals Upon Ecological Systems - CHAPTER 4 pdf
... amount of time, amount of toxicant, and the cost of performing chronic-type toxicity tests. This methodology has proven useful in a variety of roles, especially in the testing of effluents. One of ... same level of standardization This is due to the length of time most of these tests require and the specialized nature of most of the test systems rather than any lack of completeness... ... group is probably the most adapted of all aquatic insects The larvae of this group are often used as an indicator of environmental quality Habitats of immatures range from littoral marine
Ngày tải lên: 10/08/2014, 20:20
Introduction to ENVIRONMENTAL TOXICOLOGY Impacts of Chemicals Upon Ecological Systems - CHAPTER 6 docx
... action Theeffect of the pollutant, then, is a function of its concentration at the locus of itsaction For this reason, any factors capable of modifying internal concentration ofthe chemical agent ... industries, particularly with power plants Thermal pollution is the release of effluent that is at a higher temperature than the body of water it is released in.Vast amounts of water are used for cooling ... 0.24 ppm did notinjure tobacco plants Exposure for 2 h to a mixture of 0.031 ppm of O3 and 0.24ppm of SO2, however, produced moderate (38%) injury to the older leaves of TobaccoBel W3 (Menser and
Ngày tải lên: 10/08/2014, 20:20
Tài liệu Environmental impacts of petroleum production: Fate of inorganic and organic chemicals in produced water from the Osage-Skiatook Petroleum Environmental Research sites, Osage County, Oklahoma doc
... allowing the flow of high salinity water to the surface and shallow aquifers. Environmental impacts of petroleum production arise primarily from the improper disposal of large volumes of saline ... gave salinities of 19,200 and 10,100 mg/L TDS, respectively; the water is dominantly Na-Cl and has the other chemical characteristics of produced water. Environmental impacts of petroleum ... Godsy, E.M., " ;Environmental impacts of petroleum production: The fate of petroleum and other organics associated with produced water from the Osage-Skiatook petroleum environmental research...
Ngày tải lên: 14/02/2014, 03:20
ASSESSING THE ENVIRONMENTAL IMPACTS OF CONSUMPTION AND PRODUCTION: PRIORITY PRODUCTS AND MATERIALS pdf
... the period of 2007 to 2010, the Panel established five working groups addressing the issues of decoupling, biofuels, water, metal stocks and flows and environmental impacts. The work of these groups ... as a result of their consumption by humans. Fossil fuels are oxidized and hence robbed of Box 2-1 Relation of this section with other work of the Resource Panel The question of resource scarcity ... Working Group on the Environmental Impacts of Products and Materials offers a cautious, preliminary discussion of these issues and reviews published environmental assessments of products and materials...
Ngày tải lên: 15/03/2014, 16:20
THE ENVIRONMENTAL IMPACTS OF THE WORLD TRADE CENTER ATTACKS: A Preliminary Assessment pdf
... from the environmental (and other) impacts of the Trade Center attacks. Although various government agencies have discussed requiring the use of low-sulfur fuel and the retrofitting of trucks ... contained 300 mainframe computers, and powering all these devices were hundreds of miles of wires and cables containing polyvinyl T THE ENVIRONMENTAL IMPACTS OF THE WORLD TRADE CENTER ATTACKS A ... evaluation of the environmental consequences of the attacks of September 11 th . The purpose of the report is to lay out the facts, as best as we know them at this point, regarding both the environmental...
Ngày tải lên: 15/03/2014, 16:20
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