ASME PTC 34 pdf free download
ASME PTC 34-2017 pdf free download.Waste Combustors With Energy Recovery Performance Test Codes.
2-1 DEFINITIONS
This Section contains only terms and variations of normally used engineering definitions that are required for the implementation of this Code.
accuracw the closeness of agreement between a measured value and the true value (see also uncertainty); the arithmetic average of a repeated measured value compared to the true value.
additive: a substance added to a gas, liquid, or solid stream to cause a desired chemical or mechanical effect. air: the natural atmospheric mixture of nitrogen, oxygen, water vapor, carbon dioxide, argon, neon, and small quantities of other rare gases. See para. 5-9.1.
air, corrected theoretical: theoretical air adjusted for unburned cartxrn
air, excess: the air supplied to bum a fuel in addition to the theoretical air necessary for complete combustion of the fuel; it is expressed as a percentage of the corrected theoretical air in this Code.
air heater: a heat exchanger that transfers heat from a high-temperature medium such as hot gas to an incoming air stream, usually recovering heat from hot gas exiting from the boiler bank or economizer.
air, infiltration: the leakage of air into the steam generator system envelope, also referred to as tramp air.
air, other: any air supplied to the system that is not primary or secondary air. A number of other combustion air arrangements and splits are encountered in the combustion processes covered by this Code. The user must be thoroughly familiar with the combustion air arrangement of the steam generator being tested when applying this Code.
air preheater coils: a heat exchanger that typically uses steam, condensate, and/or glycol to heat combustion air entering the steam generator system.
air, primary: air supplied through or with a waste/fuel to initiate and sustain combustion. This air is usually supplied through the fuel bed and may be at ambient temperature or heated to induce drying fuel; it is also referred to as undt’rgrate air or underfire air.
air, seco,idai,: air supplied above the zone where burning is initiated. This air, at ambient temperature or heated, may be used to stimulate mixing of the burning combustible gases and suspended solids to ensure complete combustion, to reduce furnace temperature, and/or to introduce additives; it is also referred to as oveifire air.
air, theoretical: the quantity of air required to supply the exact quantity of oxygen necessary for complete combustion of a given quantity of fuel. (Theoretical air and stoichiometric air are the same.)
azalysis, proximate: laboratory analysis, in accordance with the appropriate ASTM standard, of a fuel sample providing the mass percentages of fixed carbon, volatile matter, moisture, and noncombustihies (ash).
anaIsis, ultimate: laboratory analysis of a fuel sample providing the mass percentages of noncomhustihles (ash), carbon, hydrogen, nitrogen, sulfur, oxygen, chlorine, and moisture.
as-fired fuel: fuel in the condition as it enters the steam generator system boundary.
ash: the inherent noncombustible materials contained in the fuel; see also residue.
ash, bottom: all residue removed from the combustion chamber other than that which is entrained in the flue gas; includes siftings.
ash, fly: the particles of residue entrained in the flue gas leaving the waste combustor—steam generator system boundary.
ash. hop;k’r: residue extracted from the steam generator at locations beyond the furnace such as boiler bank hoppers, air heater hoppers, and economizer hoppers.
ash pit: a storage pit, hopper, or bunker located below a furnace where residue is collected and removed; may also be called discharger or quench tank.
attemperator: see desupt’rlieater. auxiJiari fuel: see suppleirreiilary fuel. bias: see systt’matic error.
bone dry: drying a sample at 221°F (105°C) in a ventilated oven under controlled conditions until no further weight loss occurs.ASME PTC 34 pdf download.
