A Quantitative Evaluation Method of Energy Efficiency of Heat Exchanger

A heat exchanger, quantitative evaluation technology, applied in the direction of instruments, special data processing applications, electrical digital data processing, etc., can solve the problems of lack of practical significance in energy efficiency evaluation results, and achieve good stability
CN104036115BActive Publication Date: 2015-08-26LANZHOU GUANYU HEAT TRANSFER & ENERGY SAVING ENG RES +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LANZHOU GUANYU HEAT TRANSFER & ENERGY SAVING ENG RES
Publication Date
2015-08-26

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Abstract

The invention relates to an energy efficiency quantitative evaluation method for a heat exchanger. The energy efficiency evaluation index of the heat exchanger of the same kind is made to meet the stability requirement, the energy efficiency evaluation index of the heat exchanger is in a weak correlation relation with the flowing speed of fluid of the heat exchanger and the heat exchange area, and based on the requirement in the heat exchanger and heat transfer element performance test method GB / T27698-2011, the method comprises the steps that (1), the heat transfer performance of the evaluated heat exchanger is tested, and a total heat transfer coefficient k under the standard work condition is obtained; (2) the flowing performance of the evaluated heat exchanger is tested under the same condition, and the flowing pressure drops delta pc and delta ph generated when cold fluid and heat fluid flow through the heat exchanger under the standard work condition are obtained; (3) the energy efficiency evaluation index (please see the formula in the specification) of the evaluated heat exchanger is calculated. The method reflects the fixed energy efficiency property of the heat exchanger, the energy efficiency of the heat exchanger of the same kind meets the determined probability statistics distribution rule, and the scientific implementation method is provided for determining the energy efficiency and grade of the heat exchanger.
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Description

technical field

[0001] The invention belongs to the technical field of performance evaluation of heat exchangers, in particular to a quantitative evaluation method of energy efficiency levels of heat exchangers. Background technique

[0002] A heat exchanger is a device that transfers heat from a hot fluid to a cold fluid to meet process requirements. It is widely used in petroleum, chemical, electric power, metallurgy, food, pharmaceutical, aerospace, vehicle engineering and many other industrial fields. Scientific determination of its energy efficiency level is a clear requirement of laws and regulations such as the "Energy Conservation Law of the People's Republic of China", "Regulations on Safety Supervision of Special Equipment", "Measures for the Supervision and Administration of Energy Conservation of High Energy Consumption Special Equipment", and is of great importance to the promotion of heat exchanger industry technology. It is of great significance to improve ene...

Claims

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