To heat water from 20 degrees to 200 degrees using 200-degree thermal oil, generating 1 T of steam per hour at a temperature of 174 degrees, what is the required heat exchange area?
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How much heat exchange area is required for a vertical coil to heat 20-degree water using 200-degree heat transfer oil, generating 1 T of steam per hour at a temperature of 174 degrees?
A tube, a spiral coil? Does the heat transfer oil flow inside the pipes?
What about the pipe specifications? What material is used for the tank body, and what is the wall thickness? All these parameters affect the heat exchange area. The conditions you mentioned are not specific; should you ask the designers to determine them for you?
Vertical coil made of carbon steel 20#, size 57X3.5; tank body made of Q245R
The heat transfer oil flows inside the pipes, which are ordinary 20# steel pipes
This post was last edited by wiseboy on 2018-1-29 at 11:49. 1. Coils are not a viable option: since a coil consists of just one tube, 1) the tube will be very long, and the container will be large； 2) The heat transfer flow rate is very high; the flow velocity in one of the 57×3.5 tubes you specified is extremely high, resulting in astonishing resistance. 2. It should be: shell and tube heat exchanger. In short, your coil heat exchanger is a bad idea.
This post was last edited by wiseboy on 2018-1-29 at 14:53. The flow rate of the heat transfer oil is too high; the flow velocity in one of the pipes is excessive. Looking at the diagram, it seems there are 4 groups, so 4×2=8 coils; in other words, the heat transfer oil is distributed evenly among these 8 coils for flow.
Yes, it’s about calculating the required heat exchange area to generate 1 ton of steam per hour. Value selection issue
This post was last edited by wiseboy on 2018-1-30 09:13. It has been accurately calculated using the VHeater program for coil heat exchange, and it works fine. It is best for the 8 tubes to be of equal length. Pitch: 1.5×57 Heat transfer oil temperature range: 200——>190 ℃ Heat transfer oil flow rate: 110.0747 t/h Heat transfer oil pressure drop: 95.32 kPa Heat transfer oil expansion coefficient: 0.000208 1/K Environmental heat loss: 2.871 kW ...... ......
200-degree heat transfer oil is used to heat water from 20 degrees, generating 1 T of steam per hour at a temperature of 174 degrees. If you use water at 20 degrees as the input, superheated steam at 174 degrees is produced directly – can this be done with just one piece of equipment? ? I think it’s impossible