Final control questions on the subject “heat engineering” The purpose and function of the subject. Working parameter. Status parameters. Base words and phrases
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Final control questions on the subject “heat engineering” 1. The purpose and function of the subject. Working parameter. Status parameters. Base words and phrases: goal, task, working parameter, system, parameter The subject of "technical thermodynamics" is thermal energy, while its theoretical basis is technical thermodynamics and the theory of heat-mass exchange. The main style of the thermal technique is the thermodynamic style. Thermodynamics (grekcha therme – heat, power) is the science of the laws of rotation (change) of energy. "Technical thermodynamics" studies the laws of the mutual circulation of heat and work, as well as the theory of machines operating using thermal energy. Today, the rate of fuel use in various industries does not increase by more than 30-35%. Therefore, now the tasks of creating energotechnological devices that mutually complement the requirements of technology and energy are becoming transverse. The development of energotechnology, the creation of non-traditional methods and the improvement of energy saving systems, the determination of their effectiveness is carried out through thermodynamic analysis. Technical thermodynamics studies the laws of mutual circulation of heat and work. The main task of the science of" heat engineering " is to teach the basics of energy to students studying in noenergetic areas. The energy or fuel and energy complex is one of the foundations for the development of the economy of the present time. The origin of almost all types of energy that human beings are currently using goes back to the sun. Because all organic fuels, tom has gone through different stages of circulation when he received them in Maono and has reached us through hundreds of millions of years-is solar energy. Wind energy, water wave energy is also solar energy, The Shape of which has changed. Only nuclear energy, that is, the decay energy of uranium and thorium, can be hypothesized as the inheritance left by the Earth's own formation process. Currently, the types of energy consumed by mankind are conditionally divided into energy sources – those that do not re-fill the place and whose place is re-filled. Relays are non-refillable energies: – petroleum, natural gas, coal, nuclear fuel (uranium), to those whose relays are refillable-solar energy, hydropower, wind energy, wave energy, geothermal energy. More than 80% of Jahan's energy is made up of non-refillable energy sources, and their end is visible. Apparently, Energy serves as the "bread" of society. He can increase his strength only on the basis of this. As you know, according to the law of conservation of energy of the whole universe, energy cannot disappear from there, it cannot exist from there, it only passes from one species to another holos. At this time, there is a quantitative relationship between the types of energy that have become one. The private appearance of this law in the technique is called the 1st Law of thermodynamics, and its taokidation states that the sum of all types of energy of a closed (insulated) system remains constant even during any processes taking place inside the system. Currently, within the exact sciences that study nature, only technical thermodynamics is a theoretical science capable of explaining, substantiating and calculating the processes by which energy is transferred from one species to another. It currently uses thermal energy for two purposes: 1. It can be used directly without changing its shape, that is, heating houses, processing metals, cooling bodies, etc. The science that studies these processes is called the theory of heat exchange. 2. Convert it into other types of energy that it needs, that is, heat into mechanical work, heat – into work, and then into electrical energy, etc. These processes are studied by the science of technical thermodynamics. Download 1.46 Mb. Do'stlaringiz bilan baham: |
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