【Daily Question No. 302】November 4, 2018
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【Daily Question No. 302】November 4, 2018: Briefly describe the main parameters of heat exchangers (Effective heat load, heat transfer coefficient, average temperature difference, flow rate, pressure drop, etc.) . (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
Main: temperature, pressure, medium, nominal diameter, heat exchange area, etc
Heat exchange area； Work pressure, working temperature ； Design pressure, design temperature ； Material ；
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc
The main control parameters include the single-plate heat exchange area of the water heater, the total heat exchange area, the hot water output, the heat transfer amount, the heat transfer coefficient K, the design pressure, the operating pressure, and the parameters of the heat medium.
The inlet and outlet parameters of the heat exchange medium in the shell side and tube side are mainly pressure and temperature; these parameters are used to determine the properties of the heat exchange medium, which are the property parameters； In addition, structural parameters are also required, including the type of heat exchanger, the diameter of the heat transfer tubes, the number of tube banks, the material of the heat transfer tubes, and finally the flow rates of the fluids at the hot and cold ends. That’s basically it. The purpose of heat exchanger design is to determine the heat exchange area, as well as the arrangement and structure of the heat exchange surfaces, based on the parameters mentioned above.
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc.
Effective heat load, heat transfer coefficient, average temperature difference, flow velocity, pressure drop, etc