Water cooled condensers Shell and tube condensers for fresh and sea water applications

Water cooled condensers The widest range A world of applications Features & Benefits The perfect solution for R407C Performance on a wide range When efficiency is a must Highest level in component design and manufacturing quality Quality tests and pressure vessel approvals Versions Sea water for a trouble-free condensation Where the water flows The ideal choice, when maintenance is needed Fittings Technical data: Fresh water Technical data: Sea water CDEW dimensions CDEW-E dimensions CPS dimensions CFL dimensions CRS dimensions ACFL dimensions McDEW dimensions Refrigerant connections CDEW/CDEW-E/McDEW...

3 The widest range Alfa Laval’s shell and tube production includes a wide range of condensers and desuperheaters with 8 different series providing individual solutions for each conditioning, refrigeration and cooling application. Standard models fulfil condensation capacities ranging from 3 to 900 kW and 1680 kW can easily be reached with the extension of the new CDEW series. The different condenser series have been carefully optimised for the most used HFC refrigerants. All condenser models can be opened for inspection and maintenance purposes. CFC, CRS, CPLUS, ACFL and CDEW series are designed...

4 Tube sheet Metal ring Front gasket (EPDM) Front cover Features & Benefits Header configuration 1 High performances due to special design finned Cu and Cu/Ni tubes and tube geometry. 3 The only shell and tube condenser series optimised for R407C. 4 2 passes & 4 passes version. 5 Easy installation. 6 Desuperheater version. 2 8 different condenser series for a total of 121 models: the correct solution for each application. 9 All the most diffused pressure vessel approvals are available as a standard. Specific approvals available on request. 10 Every single condenser is pressure & leak tested before...

5 COP imput power CDEW Performances with R407C +11% -6% Conventional condensers CDEW Condensers log P t = const. t = const. PV2 PV1 h tom tex tsot tc2 tcm tv1 tc1 to1 to2 t = const. const. PV2 PV1 h tom tex tsot tc2 tcm tv1 tc1 to2 R407C Glide The perfect solution for R407C CDEW CDEW series of shell and tube condensers has been optimised by Alfa Laval’s R&D dept. and Laboratory in order to ensure the highest performance with HFC-R407C. This refrigerant is particularly affected by glide and this phenomenon can be relevant during the condensing phase causing losses in performance if standard condensers...

6 NOMINAL DATA Highest level in component design and manufacturing quality Models designed for fresh water applications (series CFC, CRS, ACFL, CPLUS and CDEW) use the following components: • Shell: carbon steel • Tube sheets: carbon steel • Tubes: integrally finned thick wall copper tubing • Covers: carbon steel • Gasket: thermopolymer compound • Baffles: teflon All the carbon steel components are sand blasted, including the internal wall of the shell. The precise fit of the tube exchanger baffle eliminates the risk of copper filings collecting. Models belonging to series CFC, CRS and ACFL on...

7 Versions 2 passes (Cooling tower water) 2 condenser series are dedicated to sea water, for on board marine applications and for all the other installations where it is possible to use the sea as a natural source of cooling water. Standard capacities range from 7 to 900 kW. Marine models are equipped with the following components: • Shell: carbon steel • Tube sheets: AISI 316 stainless steel • Tubes: integrally finned Cu/Ni tubing • Covers: AISI 316 stainless steel • Gasket: thermopolymer compound • Baffles: carbon steel Marine units are provided with interchangeable anodes made of soft iron....

8 L I SLOTS G x H B min F B max E D C A Tower lime water Muddy river water v > 1.2 m/s FF 0.000344 m2 K/W Universal Brackets Dimensions (mm) Where the water flows The nominal performances have been calculated on the basis of an FF equal to 0.000043 m2K/W (0.00005 h m2K/kcal). CDEW condensers are equipped with square tube sheets ensuring a simple solution for the unit positioning. CPLUS and all the other series can be supplied with bolt-on supports (fig. A) or with supports welded directly to the shell body (fig. B). Universal brackets to be easily mounting during the condenser installation can...

20 ODS R B A C B A OD ODS OD A ID B C D d Flange (CDEW / CDEW-E / CPS / McDEW) Welding (CDEW / CDEW-E / CPS / McDEW) Rotalock (CDEW / CDEW-E / CPS / McDEW) CPS Type NPT (CFC • CRS • CFL • ACFC •ACFL) Rotalock (CFC • CRS • ACFL) Type B C A B C RT Name ODS ID [mm] [mm] [mm] [mm] [mm] 20 80 36 11/4" - 12UNF RB22 22 22,5 20 80 50 13/4" - 12UNF RC28 28 28,3 20 80 50 13/4" - 12UNF RC35 35 35,3 D 1/4” 3/8” 1/2” 1” d (mm) 20 24 30 40 H (mm) 22 22 25 25 Refrigerant connections Refrigerant inlet and outlet can be equipped with Rotalock brazing (ODS), welding (OD) or flanged (F) connections. All data concerning...

21 ODS B A D H C B A di ODS di B C 50 A H ODS CDEW / CDEW-E / McDEW refrigerant connections A mm 45 45 45 B mm 32 38 51 63 76 C mm 20 20 25 di mm 39 51 75 H mm 119 128 152 172 191 ODS mm 35 42 54 67 80 OD mm 42.4 48.3 60.3 76.1 88.9 A mm 20 20 25 25 B mm 50 50 50 50 ODS mm 42 54 67 80 OD mm 48.3 60.3 76.1 88.9 A UNF 11/4" B mm 28 C mm 29 D mm 44 di mm 19 H mm 71 ODS mm 22 13/4" 27 27 38 47 52 31 83 28 35 Welding connections CDEW /CDEW-E / McDEW) Welding type Rotalock type Type B Type C Name RB 22 RB 28 RB 35 Flange type Name FA 35 Type A Type B Type C FA 42 FB 54 FC 67 FC 80 Type A Type B Type...

d d B C A OD D F E H G d OD E D H G U F 22 Water connections CDEW, CDEW-E, McDEW, CPS Flexible joint with connection pipe (J) Water inlet and outlet connections on the condenser are ISO 228/1-G female threaded connections. As an optional for models CPS285-520, the connection can be provided via a flexible joint using a clamp and a gasket in EPDM. A stub-end is supplied to which the water pipework can be welded. CFC • CRS • ACFL Condensers series CFC, CRS, series up to model 150/183 and ACFL series up to model 180/207 can have two types of connections: city water (scheme A) and tower water (scheme...