This research work was carried to examine the rate of production of biogas through anaerobic digestion of fresh Cow rumen obtained from slaughter house in Woji, Trans-Amadi, Port Harcourt. The Kinetics of the biogas produced upon the influence of biodegradation was studied using kinetic model linear, power, growth rate decay, non-elementary rate models to establish the model that best predicts the amount of biogas obtained from the experimental obtained parameters. The total solid, volatile solid, ash content and pH was evaluated upon the influence of the biomass. Also, the temperature and pressure build-up during the anaerobic digestion process were recorded weekly. The results of the analysis showed that is, volatile solid, ash content were 0.924g/g, 0.734g/g and 0.1414g/g, while the PH value before and after the analysis were 7.45 and 7.26 as well as fluctuation in temperature between 300C and 34.50C was observed.
This research work was carried to examine the rate of production of biogas through anaerobic digestion of fresh Cow rumen obtained from slaughter house in Woji, Trans-Amadi, Port Harcourt.
Transportation of fluids in the industry especially in the oil and gas sector is a common phenomenon. Thus, analyzing the flow characteristics in elbow ducts is essential for a number of engineering applications
The increasing high price and demand for energy source drive our effort to convert solid waste into useful fuel. An eco friendly energy is retrieved from waste plastic materials through automated waste management system and it is tested successfully with the help of arduino board
The ever increasing demands for higher thermal efficiency from power plants have resulted to wide range of research in this regard. This work is one of such researches that deal with the performance optimization of a Combined Gas and Steam Turbines (COGAS) plant using Artificial Neural Network (ANN)
Experimental and theoretical approach was used in the formulation of adsorbent, made from clay and sawdust for the adsorption of kerosene in water medium environment. Three formulations of clay and sawdust with the code ratio of R9:1, R17:3 and R4:1 and with control clay sample, were investigated to obtain the suitable mixing ratio that will give optimum percentage removal of kerosene in water medium.
A three-fold design and fabrication of insulation testing rig (ITR) has been demonstrated in this research work via geometric (or architectural) design, stress design and thermal design.
Traffic education has a great influence on road safety. However, traffic safety cultures differ between different parts of the world, and this in turn affect show drivers respond to advisory traffic information.
80 kg of organic fraction of municipal solid waste was mixed with water in ratio of 1:2 to form slurry which was charged into fixed dome AD plant made of plastic digester. This was subjected to complete hydraulic retention of thirty eight days under the condition of mesophilic temperature range of 35.5oC-37.5oC.
Disposal of huge amount of discarded waste materials being generated in large quantity causes environmental hazards. This study utilized the discarded waste materials as partial replacement of constituents in asphaltic concrete.
Cracking in concrete pavement exhibits a durability problem since the ingress of moisture and harmful chemicals such as sulphates and chlorides into the concrete through the cracks can cause premature matrix degradation and corrosion of embedded steel reinforcement, which may result in the decrement of strength and life
In this study, the properties of insulation materials have been searched using eggshell and nutshell with perlite and sawdust. Eggshell, nutshell which have been ground in different sizes.
Predictive model was developed to detect insulation failure and pipeline leakage in natural gas transmission line using simulation software known as EXTENDSIM9 SUIT.
Recycling is considered as a cost-effective solution to enhance the pavement for additional service life. Implementation of recycling agent can provide the required flexibility and increase its micro crack healing potential.
This study considered the model of queuing system. Examples of queue systems are Single-server queue system which occur if arrival and service rate is Poisson distributed (single queue) (M/M/1) queue
A mathematical model for esterification coupled with pervaporation is developed to investigate and optimize the effect of water removal from the reaction mixture on the obtainable conversion in a batch reactor fitted with recirculation around a pervaporation membrane.
The article presents an effective numerical-analytical method for solving problems of hydro-viscose-elasticity and gives examples of calculating the natural oscillations of thin-walled cylindrical shells in contact with a viscous fluid by this method.
The accumulation of traffic load repetitions on the flexible pavement usually exhibit rutting and shear failure of pavement layers at hot climatic condition.
This study examines the causes and effects of rural roads failure on agricultural produce from Olorunda local government area of Osun State, Nigeria
A cost effective and completely renewable energy based power generation is performed and utilised for charging the electric vehicles and street lighting.
The flexible roads have the advantage of good riding surface while the concrete roads are more durable and required less maintenance than the flexible / bituminous pavement
Of all the motions of the vessel, the roll motion which is the rotation of the vessel about the longitudinal axis is of utmost concern as it has the potential of causing: reduction in ship’s velocity, damage of cargo onboard, sea sickness to the crew onboard
The results showed that as the bagasse ash content (BA) increased, the fineness of mixes and heat of hydration increased too.
Corrosion inhibition effect of Xanthosoma spp leaf extract on Al-Cu-Mg alloy in simulated seawater has been studied using gravimetric method at 303k, 313k and 323k temperatures with various concentrations (0.1, 0.2, 0.3, 0.4, and 0.5) g/L of the extract.
This paper presents the characterization of Al 6061 metal matrix composite (MMC) reinforced with fly ash and basalt ash produced by stir casting method. Basalt is a natural material that is found in volcanic rocks
A model of Micro Multi Bore Hollow Fiber catalytic membrane reactor for the esterification process is developed.
To complete the rotational motion of permanent magnet (PM) driving motor with its own magnetic energy, magnetic force, generated torque by using the help of electrical controlled swing-type device.
This paper presents comparative studies on different levels of single phase inverter for standalone photo voltaic systems with simple pulse width modulation scheme.
The concrete is strong in compression but weak in tension, versatile, and brittle material which is serving from so many decades for construction industries all over the world.
Optimization of friction welding process to eliminate valve forking which is resulting in valve breakage in bend test followed by friction welding process and in engine as well.
Optical fibres are made of silicon glass or plastic for transmitting light signal over long and short distances. Technological advancement in photonics has led to its use in fibre optic sensor (FOS)
The concrete is strong in compression but weak in tension, versatile, and brittle material which is serving from so many decades for construction industries all over the world
Asphalt concrete is a composite and viscoelastic material consisting of aggregates, mineral filler and asphalt cement. Its mechanical behavior is complex due to its susceptibility of temperature, moisture, loading frequency, and strain level
The concrete is strong in compression but weak in tension, versatile, and brittle material which is serving from so many decades for construction industries all over the world
The exponential growth of internet traffic added to the rising demand for high bandwidth consuming services and applications all over the world has triggered an increasing need for higher capacity in core optical communication networks
Reliability indices such as System Average Interruption Duration Index (SAIDI), System Average Interruption Frequency Index (SAIFI) and Customer Average Interruption Duration Index (CAIDI) are so significant in assessing the reliability levels of power systems
