This study experimentally investigated the effect of adding chopped glass fibers on the strength properties of concrete. Glass fibers were added at 0.3%, 0.5%, and 0.7% of the total binder content. The compressive strength, split tensile strength, and flexural strength of concrete specimens containing different amounts of glass fibers were tested at 7 and 28 days. The results showed that the strengths increased with higher glass fiber content, with the 0.7% fiber mix achieving the highest strengths. Non-destructive rebound hammer and ultrasonic pulse velocity tests also indicated that concretes with glass fibers had better strength and quality than plain concrete without fibers.
Self-compacting concrete is high performance concrete which is highly flowable, non-segregating, spread on its
own weight and doesn‟t need any compaction. This paper deals with flow and strength characteristics such as
compressive strength, split tensile strength, flexural strength and impact strength of Self-compacting concrete
with various percentages of waste plastic fibres like 0%, 0.25%, 0.5%, 0.75%, 1.0%, 1.1%, 1.20%, 1.3% and
1.4% is added by weight of cement. The mix proportion for M40 grade of concrete was done by using Nan Su
method (Cement: GGBS: Fine aggregate: Course aggregate 1: 0.705: 3.34: 2.62). Water powder (W/P) ratio
0.36, cement content 280kg/m3
, GGBS 220 kg/m3 was calculated and maintained as constant throughout the
experimental work for all eight mixes, only the superplastizers dosage was varied for different percentage of
fibres. In this experimental investigation one control mix and eight (8) different mixes were considered. Totally
81 Cube, beam, Cylindrical specimens and square plates were casted, cured and tested as per IS specifications.
For determining impact strength drop weight method was used. The results obtained indicate that fresh
(workability) characteristics satisfy the lower and upper limit as suggested by EFNARC. The tests on hardened
properties indicate that the compressive strength, split tensile strength, flexural strength was improved
proportionally with the addition of waste plastic fibers upto 1.0% by weight of cement and then decreases. The
impact strength improved proportionally with addition of fibres upto 1.2% by weight of cement and then
decreases
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Self-compacting concrete is high performance concrete which is highly flowable, non-segregating, spread on its
own weight and doesn‟t need any compaction. This paper deals with flow and strength characteristics such as
compressive strength, split tensile strength, flexural strength and impact strength of Self-compacting concrete
with various percentages of waste plastic fibres like 0%, 0.25%, 0.5%, 0.75%, 1.0%, 1.1%, 1.20%, 1.3% and
1.4% is added by weight of cement. The mix proportion for M40 grade of concrete was done by using Nan Su
method (Cement: GGBS: Fine aggregate: Course aggregate 1: 0.705: 3.34: 2.62). Water powder (W/P) ratio
0.36, cement content 280kg/m3
, GGBS 220 kg/m3 was calculated and maintained as constant throughout the
experimental work for all eight mixes, only the superplastizers dosage was varied for different percentage of
fibres. In this experimental investigation one control mix and eight (8) different mixes were considered. Totally
81 Cube, beam, Cylindrical specimens and square plates were casted, cured and tested as per IS specifications.
For determining impact strength drop weight method was used. The results obtained indicate that fresh
(workability) characteristics satisfy the lower and upper limit as suggested by EFNARC. The tests on hardened
properties indicate that the compressive strength, split tensile strength, flexural strength was improved
proportionally with the addition of waste plastic fibers upto 1.0% by weight of cement and then decreases. The
impact strength improved proportionally with addition of fibres upto 1.2% by weight of cement and then
decreases
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Performance evaluation of hybrid fibre reinforced concrete subjected to freez...eSAT Journals
Abstract Durability is the ability to last a long time without significant deterioration. Hybrid fiber reinforced concrete (HFRC) proves to be durable material, which is effective in resisting the damage caused due to freezing and thawing due to synergistic performance of hybrid fibers. The objectives of the work described in this paper were aimed at comparing the relative strength of Hybrid fiber reinforced concrete (HFRC) with that of mono fiber reinforced concrete (FRC) and plain concrete without fibers (ref. mix) subjected to freezing and thawing. The combination of fibers used in the experimentation are (Steel + Polypropylene),(Steel +Galvanized Iron),(Steel + High density polyethylene).Strength parameters considered are compressive strength, split tensile strength, flexural strength and impact strength and tested as per relevant IS specifications. It has been concluded that the performance of hybrid fibers in concrete is better than that of mono fiber concrete for improved durability in resisting the destructive effect of freezing and thawing and also for strength enhancement. Keywords: Fiber reinforced concrete, hybrid fiber reinforced concrete, freezing and thawing, frost action, synergic effect.
STUDY OF STRENGTH PROPERTIES OF POLYESTER FIBRE REINFORCED CONCRETEJournal For Research
Fiber Reinforced Concrete" is relatively a new construction material developed through extensive research and development work during the last two decades. Fiber Reinforced Concrete (FRC) is defined as composite material which consists of conventional concrete reinforced by randomly dispersed short length fibers of specific geometry, made of steel, synthetic (polymeric) or natural fibers. Plain cement concrete has very low tensile strength and causes formation of micro cracks in stressed and unstressed states of concrete. Also, it has a low strain at fracture and brittleness with less ductility especially in case of High Performance Concrete. Fiber Reinforced Concrete is the answer to modify these properties of Plain Concrete. The recent development of Secondary reinforcement in Concrete in various fields has provided a strong technical base for improving the quality of the material. To overcome the deficiencies fibers are used as secondary reinforcement. FRC is Portland cement concrete reinforced with more or less randomly distributed fibers. The choice of fibers varies from synthetic organic materials such as polypropylene or carbon, synthetic inorganic such as steel or polyster, natural organic such as cellulose or sisal to natural inorganic asbestos. The interaction between the fiber and concrete matrix is the fundamental property that affects the performance of a cement based fiber composite materials. An understanding of this interaction is needed for forecasting the fiber contribution and for predicting the behavior of such composites. In present investigation concrete with addition of polyester fiber Recron 3s at various at dosages of 0.25%, 0.50%, 0.75% and 1.00% by weight of cement in the mix design is studied to find the optimum dosage of Polyster fiber for concrete.
STUDY ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF CHOPPED CARBON FIBER...IAEME Publication
As compared to conventional concrete the benefits of SCC comprising more strength like non SCC, may be higher due to better compaction, similar tensile strength like non SCC, modulus of elasticity may be slightly lower because of higher paste, slightly higher creep due to paste, shrinkage as normal concrete, better bond strength, fire resistance similar as non SCC, durability better for better surface concrete. Incorporation of fibers further enhances its properties specially related to post crack behavior of SCC. The fibers used in the study are 12 mm long chopped glass fiber and carbon fiber. The volume fraction of fiber taken is 0%, 0.1%, 0.15%, 0.2%. The project comprised of two stages.
Study effects of various dosage of polypropylene fiber and different dosage o...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Resilient Characteristics of Stone Matrix Asphalt MixesIDES Editor
Stone Matrix Asphalt (SMA) is a gap graded mix,
characterized by high coarse aggregates, high asphalt contents
and polymer or fiber additives as stabilizers. In comparison to
dense graded mixtures SMA has higher proportion of coarse
aggregate, lower proportion of middle size aggregate and
higher proportion of mineral filler. It resists permanent
deformation and has the potential for long term performance
and durability. In the present study, an attempt has been made
to study the resilient properties of mixtures of stone matrix
asphalt made with two types of conventional binders namely
bitumen 80/100 and 60/70, with 0.3% by weight of a non –
conventional natural fiber, namely coconut fiber. The mixes
are subjected to both static and repeated load indirect tensile
strength tests. It is observed that the natural fibres have
propounding effect on the resilient properties of the mixes.
Impact test on geopolymer concrete slabseSAT Journals
Abstract
Geopolymer is an eco-friendly binding material alternative for Ordinary Portland Cement (OPC). Geopolymer concrete is
produced by mixing fly ash, GGBS, alkaline solution, fine aggregate and coarse aggregate. Alkaline solution is composed of
NaOH and Na2SiO3 solution. This paper deals with the study of impact resistance capacity of geopolymer concrete slabs
subjected to impact loading. For this study, ten specimens of size 600 mm (length) × 600 mm (width) × 60 mm (thick) were casted
with nine different combination of geopolymer concrete mix using different molar sodium hydroxide solutions and different
percentages of mineral admixtures and a normal concrete slab as control slab. The molarity of NaOH solution used was 8M, 12M
and 16M. Fly ash and GGBS admixtures were used in three different ratios of 100:0, 75:25 and 50:50.The slabs were oven cured
at 600C for 24 hours. These slabs were subjected to impact loading by drop weight test method. All the slabs were tested under a
drop weight of 75.50 N through a guide pipe from a height of 700mm. The results obtained from this study showed that with the
increase in molarity of NaOH solution, the strength characteristics and the impact resistance capacity of the specimen increases.
Also increase in percentage of GGBS content as replacement for Fly ash content increases the impact resistance and overall
strength characteristics of geopolymer concrete. From the test results, geopolymer concrete slab with 16M NaOH solution using
50:50 Fly ash and GGBS content showed higher impact energy absorption capacity as compared other geopolymer mixes.
Key Words: Geopolymer, Molarity, Impact loading, First crack, Ultimate failure etc…
Development of Graphite Particles filled Epoxy Resin Composite Material and i...IDES Editor
Experiments were carried out to study, impact angle
at constant velocity on the solid particle erosion behavior of
glass fiber reinforced graphite particles filled in epoxy resin
composites. In this work, the various ratio of graphite particles
in weigh were reinforced in glass fiber epoxy resin composite
laminates were prepared, and then evaluated at different
impact angles from 300 to 900 keeping the erodent impact
velocity as constant. The erodent used is silica sand with the
size varies from 100 – 150 microns of irregular shape. The
results were compared with plain epoxy laminate composites.
We find that erosive wear rates of glass fiber reinforced
graphite particles filled in epoxy resin composites is the lowest.
These graphite particles resists fiber matrix debonding. A
plain epoxy laminate composite without graphite particle filled
shows the highest erosive rate.
Strength Evaluation of Steel-Nylon Hybrid Fibre Reinforced ConcreteIJERA Editor
When fibres like steel, glass, polypropylene, nylon, carbon, aramid, polyester, jute, etc are mixed with concrete known as fibre reinforced concrete. To overcome the deficiencies of concrete; fibres are added to improve the performance of concrete. In this research hybrid reinforced concrete is made by using steel and nylon 6 fibres. The inclusion of both steel and nylon 6 fibres are used in order to combine the benefits of both fibers; structural improvements provided by steel fibers and the resistance to plastic shrinkage improvements provided by nylon fibers. So the aim of this project is to investigate the mechanical properties (compressive strength, flexure strength and split tensile strength) of hybrid fiber reinforced concrete under compression, flexure & tension. The total volume of fibre was taken 0.75 % of total volume of concrete. In this experimental work, four different concrete mix proportions were casted with fibres and one mix without fibres. Four different mix combinations of steel- nylon 6 fibres were 100-00%, 75-25%, 50-50% and 25-75%. Superplasticizer was used in all mixes to make concrete more workable. The results shown that compressive, split tensile and flexural strength of hybrid fibre reinforced concrete increase by increasing quantity of steel and nylon 6 fibres. The increase in compressive and tensile strength due to incorporation of steel fibre is greater than that of using nylon fibre. For the nylon 6 fibres, adding more fibres into the concrete has a limited improvement on splitting tensile strength. Inclusion of nylon 6 fibres along with steel fibres results in considerable improvement in flexural strength as compared to solo steel fibre.
Performance evaluation of hybrid fibre reinforced concrete subjected to freez...eSAT Journals
Abstract Durability is the ability to last a long time without significant deterioration. Hybrid fiber reinforced concrete (HFRC) proves to be durable material, which is effective in resisting the damage caused due to freezing and thawing due to synergistic performance of hybrid fibers. The objectives of the work described in this paper were aimed at comparing the relative strength of Hybrid fiber reinforced concrete (HFRC) with that of mono fiber reinforced concrete (FRC) and plain concrete without fibers (ref. mix) subjected to freezing and thawing. The combination of fibers used in the experimentation are (Steel + Polypropylene),(Steel +Galvanized Iron),(Steel + High density polyethylene).Strength parameters considered are compressive strength, split tensile strength, flexural strength and impact strength and tested as per relevant IS specifications. It has been concluded that the performance of hybrid fibers in concrete is better than that of mono fiber concrete for improved durability in resisting the destructive effect of freezing and thawing and also for strength enhancement. Keywords: Fiber reinforced concrete, hybrid fiber reinforced concrete, freezing and thawing, frost action, synergic effect.
STUDY OF STRENGTH PROPERTIES OF POLYESTER FIBRE REINFORCED CONCRETEJournal For Research
Fiber Reinforced Concrete" is relatively a new construction material developed through extensive research and development work during the last two decades. Fiber Reinforced Concrete (FRC) is defined as composite material which consists of conventional concrete reinforced by randomly dispersed short length fibers of specific geometry, made of steel, synthetic (polymeric) or natural fibers. Plain cement concrete has very low tensile strength and causes formation of micro cracks in stressed and unstressed states of concrete. Also, it has a low strain at fracture and brittleness with less ductility especially in case of High Performance Concrete. Fiber Reinforced Concrete is the answer to modify these properties of Plain Concrete. The recent development of Secondary reinforcement in Concrete in various fields has provided a strong technical base for improving the quality of the material. To overcome the deficiencies fibers are used as secondary reinforcement. FRC is Portland cement concrete reinforced with more or less randomly distributed fibers. The choice of fibers varies from synthetic organic materials such as polypropylene or carbon, synthetic inorganic such as steel or polyster, natural organic such as cellulose or sisal to natural inorganic asbestos. The interaction between the fiber and concrete matrix is the fundamental property that affects the performance of a cement based fiber composite materials. An understanding of this interaction is needed for forecasting the fiber contribution and for predicting the behavior of such composites. In present investigation concrete with addition of polyester fiber Recron 3s at various at dosages of 0.25%, 0.50%, 0.75% and 1.00% by weight of cement in the mix design is studied to find the optimum dosage of Polyster fiber for concrete.
STUDY ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURE OF CHOPPED CARBON FIBER...IAEME Publication
As compared to conventional concrete the benefits of SCC comprising more strength like non SCC, may be higher due to better compaction, similar tensile strength like non SCC, modulus of elasticity may be slightly lower because of higher paste, slightly higher creep due to paste, shrinkage as normal concrete, better bond strength, fire resistance similar as non SCC, durability better for better surface concrete. Incorporation of fibers further enhances its properties specially related to post crack behavior of SCC. The fibers used in the study are 12 mm long chopped glass fiber and carbon fiber. The volume fraction of fiber taken is 0%, 0.1%, 0.15%, 0.2%. The project comprised of two stages.
Study effects of various dosage of polypropylene fiber and different dosage o...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Resilient Characteristics of Stone Matrix Asphalt MixesIDES Editor
Stone Matrix Asphalt (SMA) is a gap graded mix,
characterized by high coarse aggregates, high asphalt contents
and polymer or fiber additives as stabilizers. In comparison to
dense graded mixtures SMA has higher proportion of coarse
aggregate, lower proportion of middle size aggregate and
higher proportion of mineral filler. It resists permanent
deformation and has the potential for long term performance
and durability. In the present study, an attempt has been made
to study the resilient properties of mixtures of stone matrix
asphalt made with two types of conventional binders namely
bitumen 80/100 and 60/70, with 0.3% by weight of a non –
conventional natural fiber, namely coconut fiber. The mixes
are subjected to both static and repeated load indirect tensile
strength tests. It is observed that the natural fibres have
propounding effect on the resilient properties of the mixes.
Impact test on geopolymer concrete slabseSAT Journals
Abstract
Geopolymer is an eco-friendly binding material alternative for Ordinary Portland Cement (OPC). Geopolymer concrete is
produced by mixing fly ash, GGBS, alkaline solution, fine aggregate and coarse aggregate. Alkaline solution is composed of
NaOH and Na2SiO3 solution. This paper deals with the study of impact resistance capacity of geopolymer concrete slabs
subjected to impact loading. For this study, ten specimens of size 600 mm (length) × 600 mm (width) × 60 mm (thick) were casted
with nine different combination of geopolymer concrete mix using different molar sodium hydroxide solutions and different
percentages of mineral admixtures and a normal concrete slab as control slab. The molarity of NaOH solution used was 8M, 12M
and 16M. Fly ash and GGBS admixtures were used in three different ratios of 100:0, 75:25 and 50:50.The slabs were oven cured
at 600C for 24 hours. These slabs were subjected to impact loading by drop weight test method. All the slabs were tested under a
drop weight of 75.50 N through a guide pipe from a height of 700mm. The results obtained from this study showed that with the
increase in molarity of NaOH solution, the strength characteristics and the impact resistance capacity of the specimen increases.
Also increase in percentage of GGBS content as replacement for Fly ash content increases the impact resistance and overall
strength characteristics of geopolymer concrete. From the test results, geopolymer concrete slab with 16M NaOH solution using
50:50 Fly ash and GGBS content showed higher impact energy absorption capacity as compared other geopolymer mixes.
Key Words: Geopolymer, Molarity, Impact loading, First crack, Ultimate failure etc…
Development of Graphite Particles filled Epoxy Resin Composite Material and i...IDES Editor
Experiments were carried out to study, impact angle
at constant velocity on the solid particle erosion behavior of
glass fiber reinforced graphite particles filled in epoxy resin
composites. In this work, the various ratio of graphite particles
in weigh were reinforced in glass fiber epoxy resin composite
laminates were prepared, and then evaluated at different
impact angles from 300 to 900 keeping the erodent impact
velocity as constant. The erodent used is silica sand with the
size varies from 100 – 150 microns of irregular shape. The
results were compared with plain epoxy laminate composites.
We find that erosive wear rates of glass fiber reinforced
graphite particles filled in epoxy resin composites is the lowest.
These graphite particles resists fiber matrix debonding. A
plain epoxy laminate composite without graphite particle filled
shows the highest erosive rate.
Strength Evaluation of Steel-Nylon Hybrid Fibre Reinforced ConcreteIJERA Editor
When fibres like steel, glass, polypropylene, nylon, carbon, aramid, polyester, jute, etc are mixed with concrete known as fibre reinforced concrete. To overcome the deficiencies of concrete; fibres are added to improve the performance of concrete. In this research hybrid reinforced concrete is made by using steel and nylon 6 fibres. The inclusion of both steel and nylon 6 fibres are used in order to combine the benefits of both fibers; structural improvements provided by steel fibers and the resistance to plastic shrinkage improvements provided by nylon fibers. So the aim of this project is to investigate the mechanical properties (compressive strength, flexure strength and split tensile strength) of hybrid fiber reinforced concrete under compression, flexure & tension. The total volume of fibre was taken 0.75 % of total volume of concrete. In this experimental work, four different concrete mix proportions were casted with fibres and one mix without fibres. Four different mix combinations of steel- nylon 6 fibres were 100-00%, 75-25%, 50-50% and 25-75%. Superplasticizer was used in all mixes to make concrete more workable. The results shown that compressive, split tensile and flexural strength of hybrid fibre reinforced concrete increase by increasing quantity of steel and nylon 6 fibres. The increase in compressive and tensile strength due to incorporation of steel fibre is greater than that of using nylon fibre. For the nylon 6 fibres, adding more fibres into the concrete has a limited improvement on splitting tensile strength. Inclusion of nylon 6 fibres along with steel fibres results in considerable improvement in flexural strength as compared to solo steel fibre.
Experimental study of concrete using corrugated steel fibreAbishaY1
Concrete is one of the most versatile building materials.
▶ It can cast to fit any structural shape from a cylindrical water storage tank to a rectangular beam or column in a high rise building.
▶ The advantages of using concrete include high compressive strength, good fire resistance, high water resistance, low maintenance, and long service life.
▶ The disadvantages of using concrete include poor tensile strength low strain of fracture and formwork requirement.
▶ The major disadvantage is that concrete develops micro cracks during curing.
▶ It is the rapid propagation of these micro cracks under applied stress that is responsible for the low tensile strength of the materials, hence fibres are added to concrete to overcome these disadvantages.
▶ The addition of fibres in the matrix has many important effects. Most notable among the improved mechanical characteristics of fibre reinforced concrete (FRC) are its superior fracture strength, toughness, impact resistance, flexural strength resistance to fatigue, improving fatigue performance is one of the primary reason for the extensive use of steel fibre reinforced concrete(SFRC) in pavements, bridge decks, offshore structure and machine foundation.
Optimization of percentages of steel and glass fiber reinforced concreteeSAT Journals
Abstract Cementitious matrices are the fragile materials that possess a low tensile strength. The addition of fibers randomly distributed in these matrices improves their resistance to cracking, substantially. However, the incorporation of fibers into a plain concrete disrupts the granular skeleton and quickly causes problems of mixing as a result of the loss of mixture workability that will be translated into a difficult concrete casting in site. This study was concerned on the one hand with optimizing the fibers reinforced concrete mixes in the fresh state, and on the other hand with assessing the mechanical behaviour of this mixture in the hardened state, in order to establish a compromise between the two states . In this paper optimization of fibers by using different percentages in steel and glass fiber reinforced concrete of grade M 70 have been studied. It optimizes 1.5% for steel Fiber content and 1% for glass fiber content by the volume of cement is used in concrete. Keywords: fibers, fragile materials, cracking, substantially
Mix Design of High Strength Concrete by Partially Replacement of Cement by Fl...dbpublications
Concrete is the commonly used material which is mostly used in civil engineering structures. The present investigation deals with high strength concrete of M60 by partial replacement of OPC with fly ash in percentages of 0%, 5%, 10% and 15% in various ratios and also add Masterpel 777 super plasticizer for workability purpose. After completion of experiment we have to do the compressive, Flexure and split tensile strength tests during the periods of 7,14 and 28 days. In this design project we have designed M60 grade concrete using Department of Environment (DOE) mix design method.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.