Recent Submissions

  • Electromechanical Device for Temperature Control of Internal Combustion Engines

    Mamani, A.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    Internal combustion engines are the most commonly used engines in the automotive world. However, these engines lack an overheating prevention system against cooling system failures when they exceed their normal operating temperature. Less experienced drivers (users) usually do not notice overheating until the engine stops, generating economic expenses in engine repairs. As such, this paper describes the design and construction of an electromechanical device to prevent engine overheating. This device is installed in a vehicle and operates independently from the electronic control unit (ECU); it records the coolant temperature and controls air admission to the engine of the vehicle in which it is installed. In addition, a new Arduino-based card will receive signals from a temperature sensor as input and process them according to its programming. Then, it will send signal outputs to the actuators: A servomotor, monitor, LED display, and buzzer. To control the intake flow, a butterfly valve is used with the servomotor. This valve partially or totally restricts the engine airflow, based on the temperature programmed for the Arduino, thus protecting the engine from overheating.
    Acceso abierto
  • Ventilation System Simulation Model at a Mine

    Artica, I.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This research project modeled and simulated a ventilation system at a Mining Concession, obtaining real-time information regarding the fans used to ventilate the mine. The simulation was developed using the VENTSIM 5 software, which also helped define the number of fans and the operating parameters required, field information, mine dimensions, the mining method, production, geothermal gradient, gas emission, air stream, and air pressure. In addition, the results from software operation revealed the need to open chimneys and use fans. Furthermore, the results also suggest that a specialist dedicated to ventilation and fan maintenance must be hired to formalize mining operations as per the Occupational Safety and Health Mining Regulations from Executive Action No. 024-2016-EM as this Mining Concession is currently operating without license.
    Acceso abierto
  • Controlled Trim-Blasting Model to Improve Stability and Reduce Vibrations at a Production Gallery of the San Ignacio de Morococha S.A.A. Mining Company

    Camallanqui-Alborque, C.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This paper presents a blasting method called controlled trim blasting, in which the rock mass of an unstable gallery where high levels of vibration have been detected is analyzed. This methodology comprises a drilling mesh with two-contour gallery assessment, producing its drilling machines and determining the type of explosive used and burden and spacing, which will be detonated after the internal blasting. Further, the internal blasting will possess its drilling machines, burden, spacing, and a second type of explosive. The separation of the gallery into smaller parts will improve the blasting, as verified in the recorded simulation. In addition, the rock-mass stability improves because the explosives used in the perimeter of the gallery are low-power with mild detonation pressure, which does not generate high levels of vibration. This is a practical and efficient method in areas where the rock mass is not good or there is a mixture of rock types.
    Acceso abierto
  • Heavy Object Lifting Platform to Correct Human Balance and Posture

    Raymundo, F.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This research document on technological development is aimed at workers in small companies, those that are developing well and soon to emerge as companies that will be positioned at the top of their labor sector. Starting from the problem at present with respect to the bad manipulation of loads it is arranged to solve the problem with established objectives to try to correct the corporal posture at the time of lifting an object with a machine that replaces the functions of the worker. The design and the solution was made based on the requirements of the worker, workers who have the need to load objects at a certain height, here the man-machine relationship, demands and desires that help to achieve the general objective are analyzed. In addition, it has the main function of this machine: To lift heavy objects of up to 150 kg of mass, this due to the implementation of a hydraulic piston in the lifting platform. The appropriate solution is an adaptation of a platform in the form of a truck forming an angle of 47.17 between the structure of the truck and the horizontal surface, this position is the most adequate so that the back does not suffer injuries during the handling of loads at work. The results give assurance that it is a machine of reliability and easy handling since it only requires an operator to control the objects and a flat position on the back without damaging the spine.
    Acceso abierto
  • Occupational Health and Safety Management Model for Mining Contracts

    Cano, Yakelin; Quispe, Grimaldo; Chavez, Heyul; Mamani-Macedo, Nestor; Raymundo-Ibañez, Carlos; Dominguez, Francisco (Springer, 2020-01-01)
    The importance of an occupational health and safety management system (OHSMS) in a mining contract allows the establishment of guidelines to prevent and mitigate accidents that may occur in mines and in exploration areas. Such guidelines are integrated to ensure compliance with regulations with respect to the mining activity (DS 024-2016-EM). For developing a model, the literature was initially reviewed (scientific articles and research studies were used as the background), development techniques were established, and an OHSMS was proposed, with prior evaluation from the contractor. Subsequently, this study presents the general requirements, planning, implementation, verification, and the corresponding review by the appropriate authority. Finally, the model is established, supported by tables that will report the current state of the company and the implementation process. This study concludes with the execution of OHSMS in case of mining contracts.
    Acceso restringido temporalmente
  • Productivity model focused on six sigma and lean manufacturing to improve the quality of service in smes in peru

    Cardenas, Luis; Zapata, Gianpierre (Springer, 2021-01-01)
    In the Peruvian market there is a great demand for the improvement of the service and quality of the products, that is why many SMEs look for low-cost alternatives that allow them to optimize their activities and thus be able to assure the quality of the service. The problem is that there are many difficulties when implementing tools or techniques due to high costs or lack of knowledge, therefore a productivity model is proposed focused on six sigma and lean manufacturing methodologies in order to adapt the needs of SMEs with 4 phases can analyze, design, implement and monitor requirements in order to reduce mismanagement of service quality, cost savings and decrease product returns.
    Acceso restringido temporalmente
  • Process management model aligned to the civil service law in public entities of Peru

    Cardenas, Luis; Zapata, Gianpierre (Springer, 2021-01-01)
    In Peru, under the framework of the National Policy for the Modernization of public management by 2021, it is intended that state institutions enter the Civil Service Regime that seeks to continuously improve the public administration in order to avoid disorder in hiring, remuneration excessive, breaches of the rights of the servers, among others, which are currently causing delays and poor service to citizens. For this reason, a management model is proposed that allows integrating the guidelines set forth by the Law of Civil Service and the process improvement techniques that will allow the current situation to be identified, prioritizing which are the critical processes and thus being able to define an improvement plan integrating the different areas within the institution.
    Acceso restringido temporalmente