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Top eight design parameters of Finned heat exchanger

Source :http://www.puruipule.cn Time:2018-01-02 14:24:35 Clicks:
 

1.   Temperature of heat exchanger

2.   In the evaporator superheat is usually 5-10 (degree of superheat is not the same as suction temperature, will vary considerably in fission machine or device at low temperature), the supercooling degree in the condenser is usually 5-8 .

3.   Evaporator head-on wind speed is generally 1.5-3 m/s, condenser is for 2-3 m/s, the narrowest surface wind speed is not more than 6 m/s. Most head on wind speed with 2.5 m/s.

4.   tube diameter and thickness 

5.   Line spacing multiply by array pitch, generally use the form of equilateral triangle cross compound. Such as 25.4x22mm , 25x21.65mm etc

6.   Finaverage thickness is 0.095 0.3 mm, spacing is 1.1-2.5 mm,

7.   Line structure: evaporator generally for two to six rows, condenser for 1-6 rows.

8.   Flow design

 

Editor’s Note: This is a guest post from Technical alliance of refrigeration and air conditioning heat exchanger