فهرست مطالب

Journal of Engineering in Industrial Research
Volume:2 Issue: 3, Jun 2021

  • تاریخ انتشار: 1400/03/11
  • تعداد عناوین: 7
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  • Ali Esmi Kamal * Pages 113-118
    As mentioned above, the most important factors and parameters affecting the gasoline product octane number are the input temperature of the reactors and the capacity of the catalytic converter unit. Therefore, considering the importance of these factors and their widespread use in different operating conditions of the operating unit, the study and preparation of information and complete and comprehensive results in this regard for the use of staff at the time of occurrence of each various operating conditions seems necessary and essential. This study was carried out in a fixed mass of 200 gr/hr with a purity of 90% and a stabilization of 3.5% of the coke formed on the catalyst. The main difference between this experiment and the preceding ones is the number and method of introducing and using the variables and their display.
    Keywords: Octan Number, Purity, Gasoline, staff at the time
  • Fariborz Ahmadi Daryakenari *, Hamidreza Nasiri Pages 119-128
    Prior to the use of fossil fuels, urban energy was supplied through biomass sources, mainly wood and coal. The sources of these materials had to be located in a certain area around the city. The limitations of these resources, along with the limitations of water and food, limited the size of the city and its potential for expansion. The required electricity was generated regionally and sporadically. The first generators of electricity were steam engines, but gradually they were replaced by internal combustion engines. Over time, with the development of distributed networks, problems arose. Researches and reports were published that expressed the disadvantages of this method and suggested that the national network be constructed and all local networks be connected to it. Cooling of power plants, their construction inside the cities were not cost-effective, so the power plants were moved to areas with easier access to fuel and water, and centralized power plants were developed. Therefore, the electricity reached the end consumer through the global electricity transmission and distribution network. The fuels used for transportation are transported in the same way that they are used today, that is, using tanks and being delivered to the consumer at gas stations. This paper proposes using new technologies to produce power. In this paper, the train method has been used to simulate the energy consumption in cogeneration systems. The results of the analysis indicates that the use of small sized steam boilers reduces the overall cost of small-sized as well as average-sized generators
    Keywords: energy consumption, Train Model, cogeneration
  • Hamidreza Nasiri *, Fariborz Ahmadi Daryakenari Pages 129-148
    Cogeneration systems have potential limitations: Because the heat recycled in these systems is a function of mechanical load (electricity), mismatch between power and heat consumption can lead to energy loss and reduced efficiency. On the other hand, partial loading of the engine or turbine reduces its mechanical efficiency and exergy of the exhaust gas. Therefore, meeting a specific consumer demand, requires optimization of the system in order to maximize the efficiency of the entire energy system of the city as well as a system management model. The performance of the cogeneration system in cities is limited for several reasons. For example, restrictions on the release of air pollutants and noise pollution may allow equipment to be installed in the suburbs instead of city centers, or to use smaller, more limited-capacity equipment. Similarly, the lack of space (land for installation of equipment) creates constraints in areas where the population and building texture is dense. Such restrictions may lead to the use of smaller power plants and equipment, which are less efficient than large equipment and require more initial investment (cost relative to MW output). In this paper, the effect of such constraints on the urban energy system is quantitatively investigated and the optimal model for the sample city is presented.
    Keywords: Cogeneration Systems, Urban Energy Consumption, Air pollution
  • Minoo Akhtarian Zand * Pages 149-155
    Corrosion reactions are often complex heterogeneous reactions that are accelerated by the interaction of factors such as a) ordinary kinetic considerations (such as activation energy), b) the chemical composition of the electrolyte, c) the mass transfer between the electrolyte and the metal surface. D) Different surface effects such as surface adsorption, repellency and surface hardness are identified. The interactions between these factors make it difficult to reproduce electrochemical data or the exact conditions that cause a metal to be eaten. These are experimental factors that should be considered when testing corrosion (measurements) and test batteries. Ignoring these factors can produce data that do not provide the true corrosion behavior of the test metal under study. In this paper, the relationship between inherent corrosion measurement errors and suggestions on how to handle the variability of electro data A chemical solution is provided.
    Keywords: Corrosion reactions, Interaction rate, activation energy, Electrochemical data
  • Minoo Akhtarian Zand *, Sergey Brindred Pages 156-165
    With the advancement of science and progress in the construction of drilling machines, the widespread use of drilling machines instead of fire operations for underground drilling has become widely used. In mechanized drilling, tools and machines are used to dig underground spaces and its main goal is to achieve high speed in the construction and digging of these spaces. Drilling operation is one of the costliest operations in underground excavations. On the other hand, there is a lot of limitation in choosing a drilling machine, or in other words, there is no flexibility in choosing a drilling machine, i.e. in one project, using several drilling machines is less used due to economic discussion and high cost of drilling machines. Therefore, the type of machine and drilling machinery must be specified before the operation. In choosing the type of drilling machine, its study and efficiency is one of the most important factors. As a result, studying the performance and efficiency of each drilling machine is one of the most vital factors in underground excavations. Here, the discussion is not about the determining factors in choosing the type of device, but the performance of intestinal drilling rig and TBM has been studied separately.
    Keywords: drilling machine, Oil Industry, performance, TBM, Economics
  • Alireza Bozorgian * Pages 166-177
    This article reviews the formation of methane gas hydrate. Gaseous hydrates are solid and crystalline grids of water molecules that are hydrogen bonded together and trap low molecular weight gas molecules in their cavities. The type of these gases depends on the gaseous composition of the environment. Methane of thermogenic and biogenic origin is the most common gas stored in gas hydrates and makes up about 99% of the gases that make up gas hydrates. Gaseous hydrates are very different from ice and, unlike ice under high pressure conditions, also form at temperatures above zero degrees Celsius. Understand the conditions under which gaseous hydrates are formed and remain stable to determine the extent. This source of energy is essential. Gaseous hydrates are very sensitive to environmental conditions and changes in pressure, temperature, water salinity, type and amount of saturated gas forming hydrate inside the pores of the sediment, cause the growth and stable conditions of gas hydrates. Gaseous hydrates are formed in systems that include water and gas, a network of water molecules (host molecules), paraffin’s such as methane, ethane, propane, isobutene, carbon dioxide, etc. (guest molecules). High pressures trap in their cavities. Gaseous hydrates are non-stoichiometric solids that are similar in appearance to ice (or snow) but completely different in structure.
    Keywords: hydrate, Methane, Sediment, Water, Carbon dioxide
  • Ebadollah Amouzad Mahdiraji * Pages 178-193
    With an increasing number of electricity companies’ subscribers, the necessity of restructuring these systems is an important issue that cannot be overlooked. In this regard, a solution that has become interesting subject for network designers is the evolution of the traditional power grids into intelligent power grids. One of the influential elements in these networks is electric vehicles, which are considered by both researchers and consumers. They are Eco-friendly and provide the needed comfort. Given the fact that the presence of these vehicles is growing in the networks, an important challenge which is posed is their exploitation as an actor in the secondary services market of the power networks. So that it is possible to achieve peak shaving in the power system by optimally scheduling the charging and discharging time of these vehicles. In this paper, PSO and ACO algorithms were used as optimizing tools for charging and discharging time of the vehicles and then the DVR was applied as the stabilizer of the network asymmetry.
    Keywords: V2G system, Electric Vehicle, Intelligent power grid, particle swarm optimization algorithm (PSO), Economic Dispatch