• In physics, the energy balance is a systematic presentation of energy flow and conversion in a system. Theoretical basis for a balance of energy first law of thermodynamics whereby energy can not be created or destroyed, only changed in form. Wave energy or energy

• In biology, total body energy balance is measured by the following equation: Energy intake = internal heat production outside activities: energy storage. Dynamic energy budget theory makes explicit use of energy, mass and balance of time. One Calorie (or calorie kg) with the energy needed to increase the temperature of 1 kg of water 1 ° C. This is about 4.184 kJ.

• The economic energy, the energy balance of a country is a synthesis of all the presentation of human activities related to energy, except for natural resources and processes biology. National energy balances are compiled on the basis of at least a year. Common methods for compiling and presenting the energy balance to allow simple addition of the national energy balance to form supranational ones, such as compiled for the Alliance Asia Europe. The UN border energy balances for all member countries. International Energy Agency, a specialized agency of the OECD is preparing regular world energy balance.

• In technology, energy is used to balance energy use or product of a system. This can be used to build complex differential equation models to design and analyze real systems. To make a balanced energy system is very similar to make a Mass balance but there are some differences to remember, such as 1) specific, a system can be played in a series of mental balance, but open as far as the balance of power is concerned and 2), while there may be more than a mass balance for a system can is only a balance of power. If a balance is made for total energy, energy will become a balance in the ACC = OUT (ACC stands have accumulated). Reported no production (Prod) limit from the energy produced can not only convert. If instead some kind of power is ignored, for example, if a balance is made of heat energy will become a balance in the ACC Prod = OUT (if temperature is the consumption term is negative Prod calculated, compared Mass balance.

• When comparing fuel production, energy balance is the difference between production capacity of 1 kg of fuel (ie biodiesel, petroleum, uranium), and energy needed to produce it (exploitation (eg drilling or cultivation of energetic plants), transportation, wealth, etc.). Other factors affecting the choice of fuel, such as portability. See also net energy and EROEI.

• The geographic location, specific Climatology and hydrology, the " 'balance of power' refers to the total of all energy inputs and outputs at any location, including energy sun, transfer air, land and implementation capacity.

• In Groundwater Groundwater flow and energy balance of a body of Groundwater balance of the hydraulic energy associated with the inflow into the body, the energy associated with the outflow, the energy associated with the conversion of the friction heat flow, and change the outcome of the energy

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