Seeking advice on heat exchanger selection
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We need 2 plate exchangers. Could you please advise on how to select and calculate them? Is it possible to calculate the exact area, dimensions, and weight? I. Heat exchanger: 1 unit (Material: S30408; Sealing strip: EPDM) 1. Heat transfer capacity: 3.8x105 kj/h 2. Heat medium: Hot water 3. Heat medium side: Inlet temperature: 90°C, outlet temperature: 85°C 4. Material to be heated: Ethylene glycol solution (38.5%) 5. Material side: Inlet temperature: 80°C℃ ； Outlet temperature: 85°C 6. Flow direction: Counterflow 7. Inlet and outlet flanges: DN65 II. Cold plate exchanger: 1 unit (material: S30408; sealing strip: EPDM) 1. Heat transfer capacity: 7.5x105 kj/h 2. Refrigerant: Chilled water (38.5% ethylene glycol solution) 3. Refrigerant side: Inlet temperature: -15°C, Outlet temperature: -10°C 4. Material to be cooled: Ethylene glycol solution (38.5%) 5. Material side: Inlet temperature: -5℃ ； Outlet temperature: -10°C. 6. Flow pattern: Counterflow. 7. Inlet and outlet flanges: DN65. III. Material circulation pump: Q=35 m³/h, H=30 m. IV. Heat medium circulation pump: Q=50 m³/h, H=20 m. V. Refrigerant circulation pump: Q=50 m³/h, H=20 m
When selecting a plate heat exchanger, the following factors need to be considered: 1. Heat transfer capacity: Based on the data provided by the user, the heat transfer capacity of each plate heat exchanger is 3.8x105 kj/h and 7.5x105 kj/h respectively. 2. Material and sealing strip: The user has specified that the material will be S30408, and the sealing strip will be EPDM. 3. Flow pattern: The user has determined that the flow pattern for both plate exchangers is counterflow. 4. Inlet and outlet flanges: The user has specified that the inlet and outlet flanges for the two plate exchangers are DN65. 5. Flow rate and head: The user has provided the flow rate and head values for the three circulation pumps, which can be used as a reference for selection calculations. Based on the above data, it is possible to contact the plate heat exchanger manufacturer for selection calculations in order to determine the specific area, external dimensions, and weight of the plate heat exchanger. Generally, after receiving the relevant data, the manufacturer will conduct comprehensive calculations based on the user’s specific requirements and operating conditions, in order to provide the optimal selection plan and technical parameters. At the same time, users can also evaluate and compare technical parameters based on their own actual conditions and needs, in order to select the most suitable solution. .
This post was last edited by Peiqi_mO955 on June 10, 2023, at 11:13. Dear poster, we are a plate heat exchanger manufacturer from Jiangyin. We can provide selection calculation sheets. If needed, feel free to add me on WeChat: J267217896. Phone: 13961767323. Based on the data you provided, I can immediately help you make a selection; however, your specified heat transfer rate seems too low—3.8×10⁵ kJ/h translates to only 0.11 kW of heat transfer capacity. Therefore, this value might not be accurate, as 3600 kJ/h equals 1 kW. It would be best if we could discuss what the actual flow rates on the primary and secondary sides are. We can offer a free selection and quotation service; our boss himself came from Alfa Laval, so we’re definitely professionals in this field. Rest assured!
This post was last edited by PeiJi_mO955 on 2023-6-12 at 13:53. What do you mean by 10 to the power of 5? kg/h or m3/h? Hey, let’s add each other on WeChat; I’ll really help you choose the right option and prepare the necessary calculations for free. If it works for you, we can carry out the work here, but if not, you can go to another factory as well. We even export our products, and we have to help many customers choose the right options every day. (If we use your figure of 10 to the power of 5, that’s 100,000. Assuming that’s 100,000 kg/h, which is equivalent to 100 tons/h, how is it possible for a DN65 pipe to handle such a volume of flow? Even with a DN100 pipe, the flow rate would exceed 3 m/s.)
Based on the relevant data you provide, the heat exchange area and dimensions can be calculated. If needed, please contact 18067909114
Shanghai Gaowei Industrial Technology Co., Ltd.; contact person: 19339711653. They can provide appropriate solutions based on the data you provide