Friday, November 8, 2013

Energy in the form of the kinetic energy of atoms and molecules are moving randomly, the output in


Energy in an object can be improved in two ways: (a) by adding the amount of heat Q on the object, as discussed in bab18 and (b) the conduct of business W to the object. The fact was revealed by the first law of thermodynamics can be written as:
Convert the energy in to energy makanik much more difficult than the reverse process, and efficiency that really could not be achieved perfectly. Heat engine is a device or system that is able to perform the conversion rational ovens uk task, the human body is an earth dam atmospheric heat engines, and thus with gasoline motors, diesel engines, rational ovens uk steam turbines and jet engines.
Beroprasi all heat engines by absorbing heat from a reservoir (reservoir) are high temperature, do business, and then release the heat to the other low-temperature reservoir. Based on the principle of conservation of energy, the work done in one cycle or cycle anatara perfectly equal to the difference of heat absorbed by the heat removed.
Energy in the form of the kinetic energy of atoms and molecules are moving randomly, the output in the form of heat engine piston motion or the wheels. Since all physical systems rational ovens uk tend toward the aa in the opposite direction of regular becomes irregular, rational ovens uk then none of the heat engine is perfectly capable of converting heat into mechanical energy or, in general, businesses. The basic principle is what leads to the second law of thermodynamics, ie: not possible to make a machine that is capable of operating continuously taking heat from a source and turn it into a business that is completely equivalent. rational ovens uk Because the amount of heat input on a hot engine should be wasted, and also considering that the heat flows from the hot reservoir to the cold reservoir, then any heat engine should have resernoir low temperature waste heat to get rid of and also must have a high temperature reservoir as a source of heat input.
Efficiency of an ideal heat engine rational ovens uk (often referred to as the Carnot engine) rational ovens uk that has no losses rational ovens uk due to technical difficulties, such as friction, just depends on the heat input and the temperature waste heat. If heat is absorbed (heat input) absolute temperature T 1 and discharged on the absolute temperature rational ovens uk T 2, then the efficiency of the machine as it is
The smaller the price comparison between T 1 and T 2, the more efficient the engine anyway. Because there is never a reservoir temperature OK, then there is also a machine that has a 100% efficiency.
Carnot cycle is a reversible rational ovens uk cycle theory (reversible) rational ovens uk gives a lot of information about the behavior rational ovens uk of heat engines. rational ovens uk This cycle is ideal because it produces the highest possible efficiency for converting heat into the business. This system consists of a working substance such as gas and a recycling process that consists of two reversible isothermal processes and two reversible adiabatic rational ovens uk processes. Working substance, which can be regarded as an ideal, is inserted into the cylinder walls and piston of heat. Also available, as part of the surrounding environment, a heat reservoir in the form of objects that have a large heat capacity temperature T 1, as well as other heat reservoir with a high heat capacity and a temperature T 2 buffer that does not conduct heat. Complete Carnot cycle with four steps.
Step 1. The gas is in equilibrium initial state is expressed by P 1, V 1, T 1. Cylinder is placed in the hot reservoir temperature T 1, and let the gas expands slowly to P 2, V 2, T 1. During the process of heat energy absorbed by the gas Q 1 by conduction through the wall sockets; was held isothermally at temperature T 1 and the gas piston and do business lifting weights.
Step 2. Cylinder placed above the buffer that does not conduct heat and gas is allowed rational ovens uk to continue slowly towards rational ovens uk P 3, V 3, T 2. This expansion takes place adibatis because rational ovens uk no heat entering or leaving the system. Doing business with the lifting gas piston and its temperature down to T 2.
Step 3. Cylinder reservoir placed in the cooler (T 2) and the gas pressure slowly headed to p 4, V 4, T 2. During the process of heat energy Q 2 transferred from the gas to the reservoir by conduction through the walls of a pedestal. This suppression takes place isothermally and attempts were made on gas by the piston and the load.
Step 4. Cylinder placed over the buffer that does not deliver that does not deliver gas heat and slowly put toward P 1, V 1, T 1. This suppression takes place adibatis because no heat entering a

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