Calculation method for determining refrigerating capacity and smoke discharge parameter of smoke double-effect type lithium bromide refrigerating machine

Abstract

The invention discloses a calculation method for determining the refrigerating capacity and smoke discharge parameter of a smoke double-effect type lithium bromide refrigerating machine. The calculation method is designed mainly for the problems that heat source parameters of smoke double-effect type lithium bromide refrigerating machines are different, standard design for the lithium bromide refrigerating machines is difficult to achieve, independent design is conducted generally according to heat sources and users, and a large amount of manpower and time need to be consumed to conduct complicated thermodynamic cycle calculation. The calculation method for the refrigerating capacity and smoke discharge parameter of the smoke double-effect type lithium bromide refrigerating machine comprises the steps of collection and measurement of relevant parameters, selection of design parameters of the refrigerating machine, calculation of parameters of thermodynamic cycle points, calculation ofthe equipment load and determination of the refrigerating capacity. According to the calculation method, the refrigerating capacity and smoke outlet temperature of the smoke double-effect type lithiumbromide refrigerating machine can be calculated accurately, a basis is provided for the configuration scheme of the smoke double-effect type lithium bromide refrigerating machine in a project, then thermal efficiency of the whole project system can reach the maximum, and finally the purposes of energy saving and consumption reducing are achieved.

Description

technical field [0001] The invention relates to refrigeration equipment in the field of thermal energy engineering, in particular to a calculation method for the cooling capacity and smoke exhaust parameters of a flue gas double-effect lithium bromide refrigerator. Background technique [0002] Natural gas distributed energy is a comprehensive energy utilization system distributed at the user end. It is mainly based on gaseous fuel and supplemented by renewable energy. It generates electricity through gas turbines or internal combustion engines, and passes the tail flue gas through energy conversion equipment to produce the heat energy utilization forms required by users, such as steam, domestic hot water, heating hot water or Heat energy for refrigeration, etc.; according to the principle of "temperature matching, cascade utilization", the comprehensive energy utilization rate of the natural gas distributed energy system is greater than 70%. The development of natural gas ...

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Problems solved by technology

Under certain working conditions, the cooling capacity of the flue gas double-effect lithium bromide refrigerator is difficult to match the project load demand

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