El presente estudio se realizó en la empresa Soprin SAC pertenece al rubro de pinturas, cuenta con dos líneas de producción: la línea de temple y la línea de látex. El estudio estará enfocado a la línea de látex. Actualmente, se fabrican los productos terminados (PT) de acuerdo a las cantidades especificadas en las órdenes de compra de los clientes, las cuales son ingresadas al módulo de ventas para luego ser aprobadas por el área de Créditos y Cobranzas, siendo finalmente atendidas por el área de Planeamiento y Control de la Producción que se encargará de generar las ordenes fabricación y envasado. Las órdenes de fabricación y envasado generadas por el área de planeamiento para cubrir los pedidos son lanzadas de forma inadecuada, ya que solo tienen la finalidad de satisfacer las OV’s, pero no optimizando los recursos y la capacidad de la planta. Constantemente hay falta de insumos oportunos para la fabricación y envasado; lo que genera: Capacidad de planta ociosa, Desabastecimiento de productos terminados y Bajo nivel de servicio de órdenes de venta. Aplicando las metodologías del Planeamiento de Requerimiento de Materiales, Análisis del Lote Estándar y el Análisis de la demanda; logramos incrementar nuestra Capacidad de Planta. La cantidad de litros producidos por lote es mayor; dando como resultado reducir los costos de energía, mano de obra, tiempo de fabricación, tiempo de preparación, cantidad de veces que Almacén Materias Primas nos despacha la materia prima y material de envase, cantidad de veces que se entregan los productos terminados a Almacén PT, y el tiempo de matizado de los colores. El porcentaje de nivel de servicio se incrementa en un 28.6%, tomando como punto de partida el promedio de los meses Enero-Mayo 2015 y comparándolo con el obtenido en Septiembre 2015. Esto refleja la eficiencia en la atención de las OV’s por parte del Área de Producción. This study was conducted at the company Soprin SAC belongs to the category of paints, it has two production lines: Temple line and the Latex line. The study will focus on the Latex line. Currently, the finished products (FP) according to the amounts specified in purchase orders from customers, which are entered into the sales module then be approved by the area of Credit and Collections, finally being addressed are manufactured by area Planning and Production Control which is responsible for generating the manufacturing and packaging orders. The manufacturing and packaging orders generated by the planning area to cover the orders are released improperly, as they only have the purpose of meeting the OV’s, but optimizing resources and the capacity of the plant. Constantly there is a lack of timely inputs for the manufacture and packaging; generating: idle plant capacity, shortage of finished products and services Low selling orders. Applying methodologies Material Requirement Planning, Analysis Standard Lot and Demand Analysis; we increase our plant capacity. The number of liters produced per batch is greater; resulting in lower energy costs, labor, manufacturing time, preparation time, number of times we Warehouse Raw Materials shipped raw material and packaging material, number of times to store finished products are delivered FP and time hueing of colors. The percentage of service level increases by 28.6%, taking as a starting point the average of the months January to May 2015 and compared with that obtained in September 2015. This reflects the efficiency of care by the OV's Production area.

An exponentially growing global population, power demands, pollution levels and, on the other hand, rapid advances in means of communication have made the public aware of the complex energy situation. The Kingdom of Saudi Arabia has vast open land, an abundance of fossil fuel, a small population but has always been among the front-runners where the development and utilisation of clean sources of energy are concerned. Several studies on wind, solar and geothermal sources of energy have been conducted in Saudi Arabia. Solar photovoltaic (pv) has been used for a long time in many applications such as cathodic protection, communication towers and remotely located oil field installations. Recently, a 2MW grid-connected pv power plant has been put online and much larger solar desalination plants are in planning stage. Wind resource assessment, hub height optimisation, grid-connected wind farm and hybrid power system design were conducted in this study using existing methods. Historical daily mean wind speed data measured at 8 to 12metres above ground level at national and international airports in the kingdom over a period of 37 years was used to obtain long-term annual and monthly mean wind speeds, annual mean wind speed trends, frequency distribution, Weibull parameters, wind speed maps, hub height optimisation and energy yield using an efficient modern wind turbine of 2.75MW rated power. A further detailed analysis (such as estimation of wind shear exponent, Weibull parameters at different heights, frequency distribution at different heights, energy yield and plant capacity factor and wind speed variation with height) was conducted using wind speed measurements made at 20, 30 and 40metres above ground level. As a first attempt, an empirical correlation was developed for the estimation of near-optimal hub height (HH = 142.035 * (α) + 40.33) as a function of local wind shear exponent (α) with a correlation coefficient of 97%. This correlation was developed using the energy yield from a wind turbine of 1 000kW rated power and wind speed and local exponent for seven locations in Saudi Arabia. A wind-pv-diesel hybrid power system was designed and specifications were made for a remotely located village, which is being fed 100% by diesel power generating units. The proposed system, if developed, will offset around 35% of the diesel load and therefore will result in decreased air pollution by almost the same amount. The developed wind speed maps, the frequency distributions and estimated local wind shear exponents for seven locations and energy yield will be of great help in defining the further line of action and policy-building towards wind power development and utilisation in the kingdom. The study also recommends conducting a wind measurement campaign using tall towers with wind measurements at more than one height and estimating the local wind shear exponents and developing a wind atlas for the kingdom. The study further states that a grid-connected wind farm of moderate capacity of 40MW should be developed using turbines of varying rated powers. The wind speed data was also analysed using wavelet transform and Fast Fourier Transform (FFT) to understand the fluctuation in wind speed time series for some of the stations. It is also recommended that policy-makers should take firm decision on the development of hybrid power systems for remotely located populations which are not yet connected with the grid. There are two challenges which need research: one is the effect of dust on the moving and structural elements of the wind turbines and the second is the effect of high prevailing temperatures on the performance and efficiency of the same. / Thesis (PhD)--University of Pretoria, 2012. / Mechanical and Aeronautical Engineering / PhD / Unrestricted