Semi Welded Plate-and-Frame (PHE) for Refrigeration ...

Semi Welded Plate-and-Frame (PHE)for Refrigeration Applications

Isotherm Laser Welded Cassettes are specifically designed for refrigeration applications with consideration for optimum performance. Various aspects of plates such as Chev-ron Angle, Pitch and Depth are carefully designed for high Thermal Performance with low Pumping requirements. This is achieved with two types of plates, viz., Standard Line and Power Line. We offer a wide range in material selection, such as SS304, SS316/L, Titanium, SMO and Hastelloy with thicknesses between 0.6 mm to 0.8 mm. Isotherm high pressure leak tight exchangers can be used as Ammonia-Carbon Dioxide Cascade Condensers.

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• Max. Design Working Pressure 900 psig• Min. / Max. Design Working Temperature

-50°F / 320°F• Designed per ASME with “U” stamp;

Canadian Registration (CRN) can be provided

TYPICAL APPLICATIONS• Evaporators• Condensers• Heat Recovery Desuperheaters• Oil Coolers• Under Floor Heaters

Model H, in W, in L, in Max Area, �² Max Vol, �³ Max Wt, lbs Port Conn, in ISO-05 25.5 13 10-40 118 0.46 150-800 1.5 ISO-09 33 13 10-80 460 1.62 250-1350 1.5 ISO-15 43.5 13 10-80 750 2.5 350-1800 1.5 ISO-20 40 18.5 20-160 1495 5.76 500-2500 3 ISO-25 45 21.5 20-160 2540 9 1100-4000 4 ISO-40 63 18.5 20-160 3590 12.5 850-4600 3 ISO-50 64 21.5 20-160 4570 15 1500-9200 4 ISO-65 69 29 20-160 4100 17.48 1500-10500 8 ISO-85 90 29 20-160 5770 22.78 2200-15000 8

ISO-110 90 37 20-160 6415 39.41 4200-21000 10 ISO-150 111.5 37 20-160 8960 52.79 5300-26000 10 ISO-200 133 37 20-160 11430 65.64 6200-31000 10

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Model A B C D E F G Capacity* Weight HSV (in) (in) (in) (in) (in) (in) (in) (TR) (lb) 1204 12.75 48 2 3 3 0.75 1.25 20 250 1605 16 60 2 3 3 0.75 1.25 35 400 2006 20 72 3 4 4 1 1.25 55 600 2406 24 72 3 4 4 1.25 1.25 85 700 3008 30 96 4 4 4 1.5 1.25 120 1150 3608 36 96 5 8 8 2 1.25 175 1400 4210 42 120 5 8 8 2 1.25 250 2000 4810 48 120 6 8 8 2 1.25 325 2600 5412 54 144 6 8 8 2.5 1.25 470 3500 6012 60 144 8 10 10 2.5 1.25 585 4800 6612 66 144 8 10 10 3 1.25 700 6200 7212 72 144 8 10 10 3 1.25 850 7500 7813 78 156 8 10 10 3 1.25 1000 8200 8413 84 156 10 10 10 3 1.25 1160 10500

Refrigerant 40 30 20 10 0 -10 -20 -30 -40 -50

R-717 1.5 1.39 1.25 1.13 1 0.86 0.72 0.6 0.48 0.38R-22 1 0.93 0.89 0.8 0.74 0.67 0.58 0.5 0.43 0.35 R-744 - - 2.2 2.1 1.97 1.82 1.69 1.54 1.41 1.27 R-507a 0.63 0.58 0.55 0.5 0.46 0.42 0.36 0.31 0.27 0.22

Temperature ºF

Separator Selection for Flooded PHE

* For Ammonia @ 0ºF. Other saturation temperatures and refrigerants use the following table.

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Corporate Office7401 Commercial Blvd. EastArlington, Texas 76001Phone: 817-472-9922 • Fax: 817-472-5878Email: info@iso-therm.com

Middle East Office730-Siddiq Trade Center72 Main Blvd., Lahore, PakistanPhone: +92-42-35787689Email: kashif@iso-therm.com

Key Ayub Publications on Plate Exchangers

M.S. Khan, T.S. Khan, Ming-C Chyu, Z.H. Ayub, 2014, “Evaporation Heat Transfer and Pressure Drop of Ammonia in a Mixed Configuration Chevron Plate Heat Ex-changer”, International Journal of Refrigeration, Vol. 41, pp. 92-102.

Zahid Ayub, Sultan M. Khan, Amir Jokar, Tariq S. Khan and Neil Hayes, 2013, “Re-cent Developments in Plate Exchangers - Ammonia/Carbon Dioxide Cascade Con-densers”, Journal of Heat Transfer Engineering,-Vol. 34, Nos. 5-6, pp. 401-408.

M.S. Khan, T.S. Khan, Ming-C Chyu, Z.H. Ayub, 2012, “Experimental Investigation of Evaporation Heat Transfer and Pressure Drop of Ammonia in a 30° Chevron Plate Heat Exchanger”, International Journal of Refrigeration, Vol. 35, No. 6, pp. 1757-1765.

N. Hayes, Amir Jokar and Zahid H. Ayub, 2012, “Study of carbon dioxide condensation in chevron plate exchangers; pressure drop analysis”, International Journal of Heat and Mass Transfer, Vol. 55, pp. 2916-2925.

T.S. Khan, M.S. Khan, Ming-C Chyu, Z.H. Ayub, 2012, “Experimental Investigation of Evaporation Heat Transfer and Pressure Drop of Ammonia in a 60° Chevron Plate Heat Exchanger”, International Journal of Refrigeration, Vol. 35, No. 1, pp. 336-348. T.S. Khan, M.S. Khan, Ming-C Chyu, Z.H. Ayub, 2010, “Experimental Investigation of Single Phase Convective Heat Transfer Coefficient in a Corrugated Plate Heat Exchanger for Multiple Plate Configurations”, Applied Thermal Engineering, Vol. 30, pp. 1058-1065.

T. S. Khan, M. S. Khan, M-C. Chyu, Z. Ayub, and J. Chattha, 2009, “Review of Heat Transfer and Pressure Drop Correlations for Evaporation of Fluid Flow in Plate Heat Exchangers (RP-1352)”, International Journal of Heating, Ventilating, Air Conditioning and Refrigerating Research, Vol. 15, No.2, pp. 169-188. Ayub, Z. H., 2003, “Plate Heat Exchanger Literature Survey and New Heat Transfer and Pressure Drop Correlations for Refrigerant Evaporators,” Heat Transfer Engi-neering, Vol. 24, No. 5, pp. 3-16.

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South America OfficeLima, PeruCell: +51-986612443Phone: +51-16551134Email: daniel@iso-therm.com