Conversion factors for oil. The number of barrels of crude oil per tonne varies widely, depending upon the source. There are differing definitions in the literature of a tonne of oil equivalent (toe). It is derived from the formula for kinetic energy: Ek = ½ mv2, where m is the mass of the object in motion and v is its velocity. [The DOE/EIA and OECD/IEA assumptions are summarized in Table 1.]. By definition: It is to be noted that a 1 GWe plant does not normally generate 1 GWyr of electricity per year. Measured energy is often expressed in SI units as joules per gram (J/g), kilojoules per kilogram (kJ/kg), or joules per kilogram (J/kg), depending on the … Specific energy is defined as energy per unit mass.
Concentration by mass is the measurement of a quantity per unit mass, and to this extent specific energy may be thought of as the concentration of energy per unit mass. The ratio of the actual electricity generated to the amount which would be generated were the plant to operate at full capacity for one year is the capacity factor. This is not an exact measurement, however, as the energy required depends slightly on the starting temperature of the water. Definitions.net. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. Measured energy is often expressed in SI units as joules per gram (J/g), kilojoules per kilogram (kJ/kg), or joules per kilogram (J/kg), depending on the system under study. Several definitions of the calorie are now in common use, including (2): The International Table (IT) calorie has been adopted in the publications of the Energy Information Administration of the U.S. Department of Energy (DOE/EIA) (3) and of the International Energy Agency of the Organization for Economic Co-operation and Development (OECD/IEA) (4). The heat content of crude oil from different countries varies from about 5.6 million Btu (MBtu) per barrel to about 6.3 MBtu (5). Editorial Office: 1 Research Road, Ridge, NY 11961-2701 | Phone: 631.591.4000 As for the calorie, there is a family of "Btu's" in relatively common use, including: Again, the IT unit is the one used in DOE/EIA publications. What are the Different Types of Energy Management Software? The concept is also usually important to aerodynamics and the automotive industry, as well as food scientists and researchers. [More precisely, 1 kWh = 3412.14 Btu (IT).]. Thanks for your vote!
The energy equivalent can be considered to be an alternate energy unit, precisely related to units such as the joule, calorie, or Btu. Media Energy equivalents for oil and coal are discussed in succeeding paragraphs, below, and are listed in Table 1. As seen in Table 1, this nominal heat content is considerably higher than the average heat content of coal as presently consumed in the United States; it is, however, fairly close to the average heat content of coal used in the early 1950s (3). Thus, it is usually desirable to consider energy budgets in terms of the energy content of the resource originally consumed, i.e., the primary energy and not the end-use energy.