27 Articles Published

1. ANALYSIS OF FREE AIR COOLING-HEATING WITH THERMAL ENERGY STORAGE

Authors: I.H.S.C. METSELAAR , M. A. ANSARI , M.A. KIBRIA , M.H. MAHFUZ, , M.R. ANISUR , R.SAIDUR

Abstract: The present building energy consumption can be reduced by replacing the air conditioning system with Thermal Energy Storage (TES) system. In this present work, a semi-analytical model is applied to analyze the shell and tube type TES system for air cooling-heating application. The laminar forced convection heat transfer phenomena in between phase change material (PCM) inside a shell and air inside the tube are studied. The heptadecane PCM with 22°C melting temperature is used for this TES system. The melting front propagation is also analyzed. The outlet air temperatures are found 24°C to 26°C for the 32°C inlet air temperature.

Keywords: Air heating and cooling; Thermal energy storage; Phase change material.

Pages: 1 - 3 | DOI: 10.15224/978-981-07-7021-1-41

2. DESIGN AND SIMULATION OF SOLAR POWERED COOLING SYSTEM IN UAE

Authors: FADI. A. GHAITH , MUHAMMAD. H. MUZAFFAR , ABBAS MOHAIDEEN.J.

Abstract: This paper aims to provide an optimum and reliable thermal design of a solar powered absorption cooling system in United Arab Emirates (UAE). A numerical algorithm was developed to compute the cooling capacity of the solar powered absorption system under the influence of several operating conditions, namely; hourly global radiation, flow rate, and the inlet generator temperature as well as investigating the associated environmental aspects. The proposed cooling system configuration consists basically of flat plate collectors, a stratified storage tank and an absorption chiller. A predictive model was programmed and simulated using INSEL software in order to analyse the performance of the system throughout summer season. A peak cooling demand of 20kW was estimated using Hourly Analysis Program (HAP) for a villa based in Dubai, UAE. Theobtained results showed that a minimum of about 50% of the power from the peak demand can be provided by the solar system during high levels of radiation.

Keywords: solar cooling, absorption chiller, INSEL.

Pages: 9 - 13 | DOI: 10.15224/978-981-07-7021-1-43

3. DYNAMIC RESPONSE OF BARE STEEL CONCRETE UNDER HUMAN RHYTHMIC ACTIVITIES

Authors: ABBAS MOHAIDEEN.J. , GAJALAKSHMI .G

Abstract: Buildings built with light weight, longer span and high slenderness may possess adequate strength and stiffness for static loads. However, increase in slenderness may create problems associated with vibration under serviceability. The structures with human rhythmic activities are sensitive to dynamic excitation. The main aim of this paper is to predict and analyze the behavior of human rhythmic activities in Steel and Composite floors (Bare steel concrete). A typical floor plan of size 16mx12m which consists of an indoor recreation centre with an arena is considered for this study. ANSYS (ANSYS 11), a computational model is usedfor this study. Usual mesh refinement technique is adopted to study the transient dynamic performance. The results indicate that the peak acceleration values when compared with limits proposed by design code IS 8002007 and ISO-2631(PART-II) are not satisfied. It is suggested that suitable stiffening or enhanced damping can be provided to counteract the rhythmic

Keywords: Floor vibrations, human rhythmic activities, ANSYS, Peak Accelerations.

Pages: 14 - 19 | DOI: 10.15224/978-981-07-7021-1-44

4. EFFECT OF CURRENT DENSITY ON REMOVAL OF COD FROM SUGAR MILL WASTEWATER USING SS AND AL ELECTRODES

Authors: DILIP H. LATAYE , RAVINDRAKUMAR P. VARHADE

Abstract: This paper deals with the electrochemical degradation of sugarcane based sugar mill waste water (SMW). The studies on removal of COD of SMW were investigated by using two liter capacity electrolytic batch reactor. Effect of current density on the performance of two electrodes viz. stainless steel and aluminium has been reported in the study. The study was performed by passing 1.67 and 3 amp current through above electrodes. Applied voltage, COD removal efficiency as a function of current density for SS and Al electrodes are observed. Likewise optimal current density as a function of surface area to volume was observed. From this study it is found that CD of 25 A/m2 providing a maximum COD removal of 54.55% having SA/V ratio of 0.06 m2/m3 with ET=20 min was consider appropriate treatment condition with aluminium electrode

Keywords: Sugar mill waste water, electrochemical treatment, Electrodes, Current density, COD

Pages: 20 - 24 | DOI: 10.15224/978-981-07-7021-1-45

5. EXPERIMENTAL STUDY OF THE FLOW CHARACTERISTICS IN A COAL CLASSIFIER

Authors: P. MENDIS , S. GAO

Abstract: Classifier device is one of the most important parts of the coal fired power plants. Increasing the performance of the classifier is important to help reduce the emissions and increase the fuel efficiency. The project is involved in studying the flow characteristics in a 1/8 size model of an industrial classifier device. It is assumed that the pneumatic coal particles would follow the same path as the air particles and achieve the same velocities as the air particles. Tangential velocity of the swirling flow and the static pressure are measured at two perpendicular planes, and five different diametric locations are measured at each plane. All the measurements are taken for three inlet air velocities, and for each inlet velocity, three different vane angles are used. Based on the measured results, suggestions are made to improve the balance of the air flow, and for further investigations and improvements.

Keywords: coal classfier, flow dynamics, experimental measurement, tangential velocity, vane angle

Pages: 25 - 29 | DOI: 10.15224/978-981-07-7021-1-46

6. HUMAN POWERED POWERGENERATING SYSTEM

Authors: CHANDURI RAJENDRA PRASED , R. GESHMA KUMARI , RAJANARENDER REDDY PINGILI , SWATHI KUMARI MASHETTY

Abstract: Human powered generators have been of interest at many places where no other alternative electricity generator has been available. While using pedal power is not a new concept in itself, it has not been successfully used on wider scale. Power generated by human can be converted from mechanical to electrical energy by using either a dynamo or an alternator. This principle can be extended to power mobiles, iPods’, laptops home appliances etc. Power can also be generated from the human efforts or human energy. This human energy can be given to the driving wheel and with this driving wheel to alternator can produce the power and finally we can use this power for different applications like as early as stated. In this paper we proposed one new system for generating the power with the help of this system the person can maintain a good physic and along with it power can also be generated. This paper presents methods to generate electricity by pedaling. It also explains in detail the method us

Keywords: Alternator, driving wheel, pedaling

Pages: 30 - 34 | DOI: 10.15224/978-981-07-7021-1-47

7. DESIGN OF AN ELECTROMECHANICAL POSITIONING SYSTEM WITH SINUSOIDAL CHANGE OF THE JERK

Authors: MIHAYLO Y. STOYCHITCH

Abstract: In this paper we consider design of an electromechanical positioning system with a controlled jerk. A system that is formed from a load and an actuating device is used as an object. For the proposed sinusoidal change of the jerk, the appropriate changes of the acceleration, velocity and displacement were found. The algorithm which ensures the motion of the object with prespecified jerk so that the requirements which are related to the maximum values of the acceleration, velocity and displacement are satisfied, is also proposed. The feedforward and feedback controllers that are realized this algorithm are designed. Furthermore the simulation of that system is performed, which is confirmed the proposed theory.

Keywords: positioning system, trajectory planning, feedback and feedforward design, controlled jerk

Pages: 35 - 48 | DOI: 10.15224/978-981-07-7021-1-48

8. SUITABLE IGNITION TIMING AND FUEL INJECTION DURATION FOR ETHANOL-GASOLINE BLENDED FUELS IN A SPARK IGNITION INTERNAL COMBUSTION ENGINE

Authors: K.WANNATONG , S. PHUANGWONGTRAKUL, , T. LAUNGNARUTAI , W. WECHSATOL

Abstract: This study was aimed to identify the suitable timing and duration of spark ignition for ethanol and gasoline blended fuel in an internal combustion engine. The four cylinders with 1,600 cc Toyota 3ZZ-FE engine was used as the tested engine. The gasoline with octane number of 87.5 was mixed with 99.5% purified ethanol to produce E-10, E-20, E-30, E-40, E-50, E-60, E-70, E-85 and E-100 blended fuels. The test conditions were set at stoichiometric combustion, and the engine speed between 2,000 – 5,000 rpm with the throttle position at 6, 9, 13, 16, 19, 22 and 26, respectively. The ignition timing and fuel injection duration were tuned for maximum brake torque conditions. The experimental results illustrate that as the composition of ethanol in the blended fuels increases, the required ignition timing for maximum brake torque conditions becomes more advanced while the required injection duration increases as well.

Keywords: Alternative fuel; Ethanol-gasoline blends; Ignition timing; and Fuel Injection;

Pages: 39 - 42 | DOI: 10.15224/978-981-07-7021-1-49

9. DESIGN AND IMPLEMENTATION OF AN IMAGE-BASED CONTROLLER FOR AN INVERTED PENDULUM

Authors: CHING-WEI WU , KENG-HAO CHANG , YING-SHING SHIAO

Abstract: The conventional inverted pendulum was equipped with potentiometers to measured pendulum angles and cart positions. This paper use a CCD camera combined with image processing to measure feedback signal of rod angles and cart positions. The state space equations of an inverted pendulum and the image processing algorithms are used to design an image-based inverted pendulum controller. Controller parameters are obtained byusing the linear quadratic regulator design and by the calibrations of image processing algorithms. The experimental results verify the proposed image servo controller can control an inverted pendulum in stable.

Keywords: Inverted Pendulum, Images Servo Controller, Linear Quadratic Regulator(LQR).

Pages: 43 - 47 | DOI: 10.15224/978-981-07-7021-1-50

10. ENERGY EFFICIENCY IMPROVEMENT AND CARBON DIOXIDE EMISSION REDUCTION IN THAI PULP AND PAPER INDUSTRY

Authors: ATHIKOM BANGVIWAT , NAPHASORN WIRIYAPHONG

Abstract: Energy consumption in Thai manufacturing sector in 2009 was 23,798 ktoe and accounted for 35.7% of the final energy consumption of the country and the worth of purchased fuel and electricity in Thai pulp and paper industry accounted for over 7.7% or 1,836 ktoe of the energy consumption in manufacturing sector. The major energy consumed was coal, shared 86.0% of the energy consumption in this sector, followed by electricity and petroleum products which shared 9.4% and 4.5% respectively, natural gas and renewable energy consumption is small in pulp and paper manufacturing sector. The pulp and paper industry converts fibrous raw materials into pulp, paper, and paperboard. The processes of papermaking include raw materials preparation, pulping (chemical, semi-chemical, mechanical, or waste paper), bleaching, chemical recovery, pulp drying, and papermaking. The most significant energy consuming processes are pulping and the drying sections of papermaking. Energy efficiency improvement is es

Keywords: Energy efficiency, Pulp and paper Industry, Conservation Supply Curve (CSC), Specific Energy Consumption (SEC), Cost of conserved energy (CCE)

Pages: 54 - 60 | DOI: 10.15224/978-981-07-7021-1-52

11. OF QUANTUM DOTS AND MICROBES SMART MATERIALS FOR FLUORESCENCE BASED CHARACTERIZATION OF ENVIRONMENTAL MICROFLORA

Authors: DUTTA J , ANCENO AJ , BONDUUSH I, , SHIPIN OV,

Abstract: Manganese doped zinc sulfide (ZnS:Mn2+) quantum dots (QDs) were surface derivatized for use as versatile fluorescent reporters is the study of microorganisms of relevance in environmental bioprocesses. When intracellularly introduced into permeabilized target bacterial cells, mercaptoacetic acid (MAA) or dithiothreitol (DTT) treated ZnS:Mn2+ QDs proved to be good visualization enhancers for morphological observations with epifluorescence microscopy. Alternatively, cell surface adhesion of chitosan capped ZnS:Mn2+ QDs also led to a similar effect, namely of QD enhanced contrast of target cells from intrinsic background fluorescence. When DTT surface derivatized ZnS:Mn2+ QDs were conjugated with oligonucleotide probes and used in fluorescent in situ hybridization (FISH) analysis, specific detection of bacterial strains representative of some proteobacterial classes was achieved.

Keywords: quantum dots, surface functionalization, fluoresence in situ hybridization, fluoresence imaging, microbial characterization

Pages: 61 - 65 | DOI: 10.15224/978-981-07-7021-1-53

12. ELECTRICITY GENERATION BY NANNOCHLOROPSIS OCULATA PROVIDING OXYGEN AT THE DIFFERENT GROWTH PHASES FOR MICROBIAL FUEL CELL

Authors: CHAO-HANG TU , CHUNG-FU HUANG , FENG-JEN CHU , SHENG-YUAN PENG , TERNG-JOU WAN

Abstract: The advantages of Nannochloropsis oculata include fast growing and high oxygen production. The amount of oxygen production is higher than the dissolved oxygen saturation value of air in water. Therefore, this study aimed to build a photosynthetic fixed-biofilm microbial fuel cell (P-FMFC) system, which compare different growth period of N. oculata as the cathode, and performing power generation. The results showed that:(1) The dissolved oxygen of P-FMFC is 15 mg/L under steady state is better than control (7.1 mg/L); (2) Electricity generation was enhanced significantly with sufficient oxygen as the terminal electron acceptor in the P-FMFC system. Oxygen was provided via photosynthesis with N. oculata in the cathode chamber (3)The growth rate of N. oculata was intended 0.00754 hr-1 when in close circuit, higher than the open circuit 0.00680 hr-1.

Keywords: Nannochloropsis oculata, microbial fuel cell, dissolved oxygen, Electricity gerneration

Pages: 66 - 69 | DOI: 10.15224/978-981-07-7021-1-54

13. SHEAR AND TENSILE TEST OF BRICK MASONRY UNIT FOR EARTHQUAKE SAFETY

Authors: HAMID NIKRAZ , MOHAMMAD AHAD ULLAH , RAQUIB AHSAN , SHARANY HAQUE

Abstract: Brick masonry is one of the earliest types of structures erected by man. Masonry has been used as a load bearing material for centuries. It is the most common type of structures in many countries. It is very weak in resisting earthquake hence the parameters of masonry unit to resist lateral load needs to be known.To find shear and tensile properties of brick masonry unit no standard procedures are introduced in ASTM and ACI. The shear and tensile properties between brick and mortar interface are closely presented in this paper. The objective of this paper is not to develop standard procedure of finding shear and tensile properties of masonry unit rather to develop a preliminary method to find the shear and tensile properties of masonry unit.Various works have been done about compressive strength of mortar. But few works are done about tensile and shear strength of mortar. The shear and tensile strength of mortar between three brick masonry unit are closely studied at various loading co

Keywords: Shear test, Tensile Test, Brick masonry

Pages: 70 - 74 | DOI: 10.15224/978-981-07-7021-1-55

14. CORRECTION FACTORS OF HINDCAST WIND AND WAVE FOR MALAYSIAN WATERS

Authors: KURIAN V. J , LIEW M.S , MAYEETAE Z , YEW G. Z

Abstract: Unreliability of measured meteorological and oceanographic (metocean) data happens due to missing data as a result of faulty measuring equipment during the measuring process. Therefore, SEAFINE hindcast model data is introduced as an alternative to measured data. SEAFINE is readily available, parametrically reliable and is able to provide long periods of historical metocean data. Therefore, SEAFINE becomes a common tool to assess metocean information at any locations especially in the South China Sea. However, SEAFINE is found to be not as accurate as measured data. The accuracy of the SEAFINE is improved and correction factors are recommended for three (3) operating regions located in Malaysian waters which are Peninsular Malaysian Operation, Serawak operation and Sabah Operation. The findings presented herein found that wind speeds determined from the SEAFINE are generally higher than measured ones. Wave height data obtained from the SEAFINE is found to agree well with that of measur

Keywords: Metocean, Hindcast, SEAFINE, Environmental Loads, Correction Factors

Pages: 75 - 78 | DOI: 10.15224/978-981-07-7021-1-56

15. CORRELATION OF METOCEAN PARAMETERS FOR MALAYSIAN WATERS

Authors: LIEW M.S , OTHMAN N.A

Abstract: Numerous time series analysis method has been introduced. Metocean forces are known as the most challenging factors in designing stage of offshore structure. Environmental loads are also known as the basic design of any primary structure of offshore platforms. Cross-spectral analysis enables two parameters to be analyzed simultaneously. In this research, a cross-spectral analysis of two environmental loads which are wind speed and wave height, will be analyzed simultaneously. Cross-spectral density is defined as the Fourier Transform of the corresponding cross-correlation function. Cross-correlation is a measure of similarityof these two waveforms as a function of a time-lag applied to one of them. In time series analysis, the cross-spectrum is used as part of frequency domain analysis of the cross-correlation between two time series.Cross-spectral analysis is also known as an extension of spectral analysis. Spectral analysis is described as a representation of a time series or mathema

Keywords: metocean, cross-spectral, spectral, offshore structures, coherence

Pages: 73 - 83 | DOI: 10.15224/978-981-07-7021-1-57

16. IMPACTS OF JATROPHA BIODIESEL BLENDS ON ENGINE PERFORMANCE AND EMISSION OF A MULTI CYLINDER DIESEL ENGINE

Authors: A. SANJID , B.M. MASUM

Abstract: Recently, non-edible oil based biodiesel fuels have more attractive among all researchers as well as government than edible sources based alternative fuels. The objective of this study is to compare the engine performance and emission results of biodiesel produced from Jatropha oil when applied in different proportions in multi cylinder diesel engine. Results revealed that biodiesel blends produce less CO (up to 52.6%) and lower HC (up to 48%) with an increase in emission of NO (up to 11.82%). Biodiesel also presented a slight increase in brake specific fuel consumption (up to 8.33%) which may be acceptable considering the reduction in exhaust emissions. The experimental results proved that biodiesel blends can be used in compression ignition engines, thereby providing a viable alternative to diesel.

Keywords: Jatropha biodiesel; Emissions; Performance.

Pages: 84 - 88 | DOI: 10.15224/978-981-07-7021-1-58

17. IMMOBILIZATION OF NANOPARTICLES OF TITANIUM DIOXIDE FOR PHOTOCATALYTIC DEGRADATION

Authors: AJAY BANSAL , JATINDER KUMAR

Abstract: The use of aqueous suspension of nanoparticles of titanium dioxide for photocatalytic removal of pollutants is not suitable for industrial applications due to the inconvenient and expensive separation of nanoparticles of titanium dioxide for reuse. The nanosized titanium dioxide needs to be immobilized on the support for improving the efficiency and economics of the photocatalytic process. In the present paper, nanoparticles of titanium dioxide have been immobilized on the surface of the support using three different techniques. The immobilized films of titanium dioxide have been characterized using X-ray diffraction to ascertain any change in the phase composition and photocatalytic properties of the titanium dioxide after immobilization on the support. A photocatalytic test has been performed under similar reaction conditions tocompare the photocatalytic performance of the films of immobilized titanium dioxide prepared using different techniques.

Keywords: Advanced oxidation processes AOPs), photocatalysis, titanium dioxide, photocatalytic activity

Pages: 89 - 93 | DOI: 10.15224/978-981-07-7021-1-59

18. OPTIMIZATION OF BLANK PARAMETERS OF ROLLED THREADS BY TAGUCHI METHOD

Authors: C M AGRAWAL , P S CHAUHAN

Abstract: This paper presents a study for optimizing the blank parameters of rolled threaded auto components. The experiments have been designed to optimize the outer diameter of thread M8×1.25 6g by Taguchi Method. The outer diameter of the external thread is dependent on the parameters like surface roughness, out of roundness and material’s properties such as tensile strength etc. An orthogonal array L9 (OA), signal-to-noise(S/N) ratio and analysis of variance (ANOVA) were employed to investigate the range of outer diameter of a screw thread. The optimum combination of surface roughness, out of roundness and tensile strengthof materials has been shown in this paper

Keywords: Rolled threads, M8, Taguchi Method, Optimization, Analysis of Variance (ANOVA), and Confirmation test.

Pages: 94 - 99 | DOI: 10.15224/978-981-07-7021-1-60

19. DIRECT APPROACH TO NUMERICAL SIMULATION OF SOIL-STRUCTURE INTERACTION IN HOMOGENOUS BUILDING CLUSTERS

Authors: AKSHAT SINHA , K.K.PANDEY, , RAJESH KUMAR , V. KUMAR

Abstract: The emerging concept of performance based design relies on a careful consideration of all aspects involved in structural analysis. One of these aspects of structural analysis involves soil-structure interaction (SSI). Current research has focussed on analysing the beneficial and sometimes detrimental effects of SSI to the performance of isolated structures. However, real structures are built in clusters (city blocks) and the seismic performance of one building influences the performance of surrounding buildings. To improve understanding of this effect, a number of building clusters with varying parameters are taken and their peak responses with varying frequencies have been studied in this paper. These results show that cluster effect is significant and the resulting response amplification in certain buildings of the cluster may justify structural retrofitting in existing buildings.

Keywords: soil-structure interaction, seismic response, response amplification, site effect

Pages: 105 - 110 | DOI: 10.15224/978-981-07-7021-1-64

20. THE EFFECTS OF CONCENTRATION, SIZE, AND ORIENTATION ON THE HARDNESS OF NANOPARTICLES DOPED DIAMOND-LIKE CARBON FILM

Authors: CHEHUNG WEI , CHUN-HSIEN YU

Abstract: The inclusion of nanoparticles in a material is a common strategy to improve mechanical properties such as Young’s modulus or hardness. In most cases, the degree of improvement depends on the distribution and size of nanoparticles as well as the process condition. In order to investigate the effects of nanoparticles on the mechanical properties of a nanoparticles doped film, a nanoindentation finite element analysis is carried out. In this study, different concentration, size, and shape (spherical, elliptical) of nanoparticles were doped in diamond-like carbon (DLC) film on a silicon substrate and the mechanical property (hardness) is calculated based on a finite element analysis. The results indicate that for a given concentration, DLC doped with larger but less in quantites spherical nanoparticles has higher hardness than that in smaller but more dense counterpart. Meanwhile, large concentration of nanoparticle leads to higher hardness due to more population of nanoparticles. The ori

Keywords: nanoparticles, nanoindentation, finite element analysis, hardness

Pages: 111 - 115 | DOI: 10.15224/978-981-07-7021-1-65

21. METOCEAN LOADS IN MALAYSIAN WATERS EXTREME VALUE ANALYSIS AND JOINT PROBABILITY

Authors: LIEW M.S , YEW G. Z , SELAMAT I.M

Abstract: Most offshore structures in the South China Sea (SCS) region are designed according to the American Petroleum Institute (API) standards which are based on harsher sea conditions. As the SCS sea-state conditions are calmer compared to those of the Gulf of Mexico and the North Sea, the use of API standards will overdesign the structures. Wind speed, wave height and current speed are among the metocean conditions that are considered in the design of offshore structures. Current practices treat the three types of metocean conditions independently of one another. This paper will employ extreme value analysis (EVA) and joint probability (JP) method to analyze measured metocean data and to determine the associated wind speed and current speed given the 100-year extreme wave height. The results show that the design loads can be reduced by 30% for design of offshore structures in the SCS region.

Keywords: Metocean, Extreme Values, Joint Probability, Mean Return Period.

Pages: 121 - 124 | DOI: 10.15224/978-981-07-7021-1-67

22. CONSTRUCTION OF TTT PROFILES FOR THE CURE OF UNSATURATED POLYESTER- FELT COMPOSITES USED IN CIPP

Authors: HOSSEIN SAIDPOUR , MOHAMMAD RAZMARA

Abstract: This paper aims to provide a comprehensive tool for evaluating the curing process of felt reinforced polyester resin composites used in the Cured In Place Pipe (CIPP) renovation techniques. During in-situ construction and renovation of pipelines, working time and temperature are important to precisely control the CIPP process. In this study the amount of catalyst used was varied in the range of 2-4%. The viscoelastic properties of the formulations were then investigated with the aid of Dynamic Mechanical Analyser (DMA) in the penetration mode. The results gave a full analysis of the curing process by providing measurements of different parameters including working time, gelation, vitrification and glass transition temperature of the resin-felt composite system. To clarify the thermal properties of the resin system a comprehensive profile of time temperature transformation (TTT) has been constructed for the different amount of catalyst used. The main purpose of the TTT profile was to de

Keywords: Polyester, cure, vitrification, DMA, CIPP, TTT Working time

Pages: 125 - 131 | DOI: 10.15224/978-981-07-7021-1-68

23. BIOSORPTION OF HAZARDOUS AZO DYE METANIL YELLOW USING IMMOBILIZED AQUATIC WEED

Authors: A.B.SATHYA , R.SIVASHANKAR , SREEDA PALLIPAD , V.SIVASUBRAMANIAN

Abstract: Release of coloured textile effluent in to aquatic environment is detrimental as they prevent penetration of light in to water, thereby affecting aquatic life and creates harmful water. Biosorption is an alternative treatment available other than physicochemical and biological methods to treat these toxic effluents. This study investigates the potential of water hyacinths to adsorb hazardous azo dye metanil yellow from aqueous solution. Metanil Yellow, is a widely used toxic dye containing one or more azo bonds (-N=N-). Metanil Yellow is used in number of industries such as textile, dyeing, food, cosmetics, paper printing industries and with textile industries as large consumers. Biosorption process was carried out using immobilized dead aquatic weeds. The influences of adsorption parameters such as initial dye concentration, pH, contact time, adsorbent dosage, agitation speed, and temperature were evaluated and optimized. Further the mechanism of biosorption earned good fits for Langm

Keywords: Biosorption, Immobilized waterhyacinth, Metanil Yellow dye, Desorption, Wastewater treatment.

Pages: 153 - 157 | DOI: 10.15224/978-981-07-7021-1-72

24. BIOSORPTION OF HAZARDOUS AZO DYE METANIL YELLOW USING IMMOBILIZED AQUATIC WEED

Authors: A.B.SATHYA , R.SIVASHANKAR , SREEDA PALLIPAD , V.SIVASUBRAMANIAN

Abstract: Release of coloured textile effluent in to aquatic environment is detrimental as they prevent penetration of light in to water, thereby affecting aquatic life and creates harmful water. Biosorption is an alternative treatment available other than physicochemical and biological methods to treat these toxic effluents. This study investigates the potential of water hyacinths to adsorb hazardous azo dye metanil yellow from aqueous solution. Metanil Yellow, is a widely used toxic dye containing one or more azo bonds (-N=N-). Metanil Yellow is used in number of industries such as textile, dyeing, food, cosmetics, paper printing industries and with textile industries as large consumers. Biosorption process was carried out using immobilized dead aquatic weeds. The influences of adsorption parameters such as initial dye concentration, pH, contact time, adsorbent dosage, agitation speed, and temperature were evaluated and optimized. Further the mechanism of biosorption earned good fits for Langm

Keywords: Biosorption, Immobilized waterhyacinth, Metanil Yellow dye, Desorption, Wastewater treatment

Pages: 153 - 157 | DOI: 10.15224/978-981-07-7021-1-72

25. ANALYSIS OF FREE AIR COOLING-HEATING WITH THERMAL ENERGY STORAGE

Authors: I.H.S.C. METSELAAR , M.A. KIBRIA , M.H. MAHFUZ, , M.R. ANISUR , R.SAIDUR , M.A.ANSARI

Abstract: The present building energy consumption can be reduced by replacing the air conditioning system with Thermal Energy Storage (TES) system. In this present work, a semi-analytical model is applied to analyze the shell and tube type TES system for air cooling-heating application. The laminar forced convection heat transfer phenomena in between phase change material (PCM) inside a shell and air inside the tube are studied. The heptadecane PCM with 22°C melting temperature is used for this TES system. The melting front propagation is also analyzed. The outlet air temperatures are found 24°C to 26°C for the 32°C inlet air temperature.

Keywords: Air heating and cooling; Thermal energy storage; Phase change material.

Pages: 1 - 3 | DOI: 10.15224/978-981-07-7021-1-41

26. NUMERICAL MODELING OF WAVE PROPAGATION USING RBF-BASED MESHLESS METHOD

Authors: H.GHAFFARZADEH

Abstract: Radial basis functions (RBFs) are the functions whose values depend only on the distance from the point called center. These functions are employing in the approximation theory and they can be utilized in the point interpolation method as a type of meshless approach for constructing the shape function. This paper discusses on the results of RBF-based meshless numerical modeling of wave propagation for additional mass detection in isotropic rod which it can be assumed as damage. Number of nodes, position and magnitude of additional mass and the variation of multiauadric RBF parameters have been studied in this paper.

Keywords: Radial basis function, Radial point interpolation, Meshless method, Wave propagation, Damage detection

Pages: 4 - 8 | DOI: 10.15224/978-981-07-7021-1-42

27. DESIGN AND SIMULATION OF SOLAR POWERED COOLING SYSTEM IN UAE

Authors: FADI. A. GHAITH , MUHAMMAD. H. MUZAFFAR

Abstract: This paper aims to provide an optimum and reliable thermal design of a solar powered absorption cooling system in United Arab Emirates (UAE). A numerical algorithm was developed to compute the cooling capacity of the solar powered absorption system under the influence of several operating conditions, namely; hourly global radiation, flow rate, and the inlet generator temperature as well as investigating the associated environmental aspects. The proposed cooling system configuration consists basically of flat plate collectors, a stratified storage tank and an absorption chiller. A predictive model was programmed and simulated using INSEL software in order to analyse the performance of the system throughout summer season. A peak cooling demand of 20kW was estimated using Hourly Analysis Program (HAP) for a villa based in Dubai, UAE. Theobtained results showed that a minimum of about 50% of the power from the peak demand can be provided by the solar system during high levels of radiation.

Keywords: solar cooling, absorption chiller, INSEL

Pages: 9 - 13 | DOI: 10.15224/978-981-07-7021-1-43