UET Peshawar Publications Site (University of Engineering and Technology, Peshawar)
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DESIGN AND DEVELOPMENT OF AN AUTOMATIC VERTICAL GATE FOR CONTROLLING EXCESS WATER AT THE HEAD OF IRRIGATION SOURCE
No full textThe purpose of this study was to design and develop an automatic vertical gate for controlling excess water at the head of irrigation source. In this respect a vertical gate was designed and fabricated to overcome the problem of providing secured irrigation water during the rainy season, under flooding or during the drought.The vertical gate so designed and developed was installed at a minor at the Malakandare farm of N-W.F.P University of Agriculture, Peshawar. The gate was tested for various artificially created flooded and drought conditions. The gate performance was satisfactory. The gate was operated for a water head (hu) of 23 cm to 49 cm for a desired discharge of 21.5 liter per second. The gate successfully maintained the desired discharge during drought. However; during flooding the discharge rosed to 48 liter per second. The increase in discharge and thereby velocity impacted the vanes of vertical gate, the touque produce on vane activated the gate movement mechanism which decreased the gate opening to 1.4cm hence controlling the discharge to the desired value of 21.5 liter per second on the down stream side of the source
THE MS-S SOFTWARE FOR RELAYOUT OF MANUFACTURING FACILITIES
No full textThis paper identifies the problem of relocating facilities in manufacturing plants as a more frequent problem in industries today then setting up a new one. The paper goes on to describe a Computer Software (MS-S) developed to tackle this relevant relayout problem. This software is for batch manufacturing industries. The relayout problem is identified to involve the following: data preparation and verification, layout design and changing from the old layout to the new one. The relayout problem is “ ill-structured” and dynamic in nature, hence a two-stage philosophy approach is used to solve the relayout problem -design and changeover. Then an example involving sixty-six workcentres, grouped to twelve workcentre cells is used to demonstrate the working of the package.
 
RECYCLING OF USED ENGINE OIL USING SOLVENT EXTRACTION AND DISTILLATION
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A solvent extraction process has been used to recycle the used engine oil. The solvent used for the treatment of used engine oil is a mixture of ethanol, 1- butanol and toluene. The effect of operating parameters on the recycling process has been investigated for optimal conditions. The process parameters considered were agitator speed for blending, boiler temperature and solvent to used oil ratio. The maximum recovery for refined oil was 72% using solvent to used oil ratio of 9:1 at a boiler temperature 120° C and agitator speed of 600 rpm. The maximum solvent recovery of 98% was also obtained at the same process condition
ON EXPONENTIALLY FITTED RUNGE-KUTTA METHODS FOR INITIAL VALUE PROBLEMS
No full textIt has been observed that old numerical techniques do not give good results when applied to solve singularly perturbed initial value problems in ordinary differential equations. In this study we introduce exponentially fitted Runge-Kutta methods to over come drawbacks of old methods
SINGLE MODEL ASSEMBLY LINE BALANCING
No full textIn this paper, the problem of balancing single assembly lines is considered. A new algorithm is proposed to improve the balance delay. The performance of the new algorithm is compared with three known algorithms. The algorithms are developed and implemented using Visual Basic. The new algorithm is tested and validated by using 100 different data sets. An illustrated example is given to explain the algorithms
INVESTIGATION OF PERFORMANCE AND SEDIMENT TRANSPORT OF LOWER BARI DOAB CANAL
No full textEconomy of many countries world-wide depends upon irrigated agriculture. The performance of irrigation system having large network of canals fed from rivers is influenced by many parameters. Inequitable water distribution,Shortage of water during peak crop water requirements, tempering of insuffcient funds for proper maintenance and high sediment loads in canals are worth mentioning issues. In this paper the performance of Lower Bari Doab Canal with emphasis on sediment transport analysis has been investigated using feld data. The performance of canal has been discussed using delivery performance ratio (DPR) a well known performance indicator. The sediment laden water flow problem may be described by three equations; the one dimensional equation of motion (momentum-equation)and the flow and sediment-continuity equations. All the three equations are partial differential equations and may be solved by the fnite difference method. Numerical models can be used for this purpose. SETRIC model has been used in this paper. The sediment deposition and erosion in time and space along the canal has been simulated. The relevant data were obtained from Punjab Irrigation and Power Department Lahore. It is observed that sediment deposition and erosion is a signifcant problem being faced by the canals in Punjab
AN INTELLIGENT DECISION SUPPORT SYSTEM FOR MACHINES SELECTION
No full textThis paper presents a methodology to the design and development of an Intelligent Decision Support System (DSS) that is intended to help the user select suitable machines for a manufacturing system. The system uses visual interactive decision support framework designed to aid decision makers in selecting the most appropriate machines for manufacturing system. The framework can be used in the pre-investment stage of the planning process, after a decision has been made to build a manufacturing system. The DSS has been developed in the VisualBasic and illustrated through examples
MATERIAL HANDLING EQUIPMENT SELECTION IN MANUFACTURING ENVIRONMENT
No full textThis paper is about the selection of material handling equipment in a manufacturing environment. A known algorithm l about the selection of material handling equipment is modified and a more realistic factor (flexibility) is included in the mathematical formulation as a constraint. A new model named Material Handling Equipment Selection Model (MHESM) is developed and implemented in Visual Basic 6. The model is tested and verified by using 50 different data sets. An illustrative example is given to describe the model
APPLICATIONS OF HORIZONTAL DRILLING TECHNOLOGY IN SAUDI OIL FIELDS
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The technology of drilling and production of horizontal wells is probably one of the most significant breakthrough in the oil and gas industry of the eighties. The continuous improvement of hardware equipment made horizontal drilling cost-effective technique for developing reserves, improving productivity and recovery in oil and gas reservoir.This paper is devoted to Saudi experience in horizontal drilling. The last years have been an exciting period for those who believed in horizontal drilling applicability in Saudi Arabia. At the end of the year 1997 more than 150 horizontal wells have been drilled in Saudi oil fields. There are four major horizontal well applications identified in Saudi Arabia oil fields; 1) Control of coning in relatively thin remaining oil column area, 2) improving sweep efficiency of water flooding program, 3) Improving productivity rate in thin/tight reservoirs and 4) Saving in total development costs in conjunction with previous three applications.This paper presents the major areas of application of horizontal well and more specifically the objectives of applying horizontal drilling in different Saudi oil fields and the world and the world horizontal drilling activities along with the Saudi experience will be covered. This paper surveys different field examples to show the application trends of horizontal well technology in both offshore and onshore oil fields. The main objective of this survey is to demonstrate the performance improvement of these oil fields after the application of horizontal well technology.
 
REDUCING VOLTAGE DROP IN DISTRIBUTION FEEDERS
No full textTwo number 11KV feeders namely Mandra and Kalyam of Rawalpindi Subdivision feeding different categories of loads have been selected as case study. The single line data has been collected through actual field visit and survey, from which single line diagrams have been generated. Using computer software programme, computer Aided Distribution Planning and Design (CADPAD) the input data has been analyzed for the existing conditions of the feeders under consideration.After detailed study, the different voltage drop reduction techniques such as Bifurcation, Reconductoring, Load Balancing and Capacitor Application have been applied to bring the voltage drop into as international standard i.e. ± 5%. During the study the main emphasis has been given on exploiting ways and means to upgrade the existing outdated distribution system not only to provide a high level of service to public at present but also to make it flexible to such an extent that it will accommodate/future anticipated load quite adequately