【Daily Question】12.18 Term Explanation: Calorific value
Thread Content
This post was last edited by Cuaili Yisu on 2016-1-4 at 11:35. Definition of a term: Calorific value – The heat released when 1 kilogram of a certain solid (gaseous) fuel is completely burned is referred to as the calorific value of that fuel. +2 wealth for participation, +5 wealth for correct answers, +8 wealth for in-depth discussions. Activity involved: “My Most Crazy” – +20 wealth. [Petrochemical activity] Registration page for “My Most Crazy” activity: http://bbs.hcbbs.com/thread-1487895-1-1.html (Source: Haichuan Chemical Industry Forum). [Petrochemical activity] Contest for the best imitation Song typeface: http://bbs.hcbbs.com/thread-1514512-1-1.html (Source: Haichuan Chemical Industry Forum)
Calorific value (also known as heat value or energy content): The amount of heat released when a unit mass (or volume) of fuel is completely burned.
The heat released when 1 kilogram (1 cubic meter) of a certain solid (gaseous) fuel burns completely is known as the calorific value of that fuel.
The energy released when 1 cubic meter of gas burns completely is known as the calorific value of the gas
:The heat released when a unit mass of a certain fuel burns completely is called the calorific value of that fuel
1. Definition: The heat released when a unit mass of a certain fuel burns completely is called the calorific value of that fuel. 2. Formula: The heat released upon complete combustion of a fuel is Q = mq. 3. Symbols and units: q, in J/kg. 4. Factors affecting calorific value: The calorific value depends only on the type of fuel
Calorific value is also known as calorie value or heat content. In fuel chemistry, it is an important indicator representing the quality of fuel. The heat released when a unit mass (or volume) of fuel burns completely.
It refers to the ratio of the heat released upon the complete combustion of a certain fuel to its mass; it is a property specific to that substance, with units of J/kg or J/m^3
Calorific value, also known as calorie value or heat content. In fuel chemistry, it is an important indicator representing the quality of fuel. The heat released when a unit mass (or volume) of fuel burns completely. It is usually determined using a calorimeter (calorimeter meter) or calculated from fuel analysis results. There are two types: higher calorific value and lower calorific value. The former is the total of the heat of combustion of the fuel and the heat of condensation of water vapor, that is, the total amount of heat released when the fuel burns completely. The latter is merely the heat of combustion of the fuel, that is, the difference between the total heat and the heat of condensation. The common unit of calorific value is J/kg (for solid and liquid fuels), or J/m^3 (for gaseous fuels). The calorific value of coal can be determined by using a microcomputer-controlled calorimeter or a lift-type fully automatic microcomputer calorimeter correctly. In food chemistry, it is an indicator of the energy content of food. It refers to the heat released when 1 gram of food is oxidized in the body.
The heat released when 1 kilogram of a certain solid (or gaseous) fuel is completely burned is known as the calorific value of that fuel. It is a property of the substance, denoted by the symbol q, with the unit of joules per kilogram, expressed as J/kg. The calorific value reflects the combustion characteristics of a fuel, that is, the ability of different fuels to convert chemical energy into internal energy during combustion.
Calorific value, also known as calorie value or heat content. In fuel chemistry, it is an important indicator representing the quality of fuel. The heat released when a unit mass (or volume) of fuel burns completely. It is usually determined using a calorimeter (calorimeter meter) or calculated from fuel analysis results. There are two types: higher calorific value and lower calorific value. The former is the total of the heat of combustion of the fuel and the heat of condensation of water vapor, that is, the total amount of heat released when the fuel burns completely. The latter is merely the heat of combustion of the fuel, that is, the difference between the total heat and the heat of condensation. The common unit of calorific value is J/kg (for solid and liquid fuels), or J/m^3 (for gaseous fuels).