vaporizator

7/22/2019 vaporizator

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GEA Heat Exchangers, Inc. PHE Divisio100 GEA DriveYork, PA 17406 USAPh: +717-268-6200Fax: [email protected]: www.gea-phe.com/usa

DX liquid evaporator

Customer / Project Project Created 1/16/2014 12:22 PM Selection ID NUJ6A4C

User name Muresan Daniel Print date 1/16/20

Model: CH20G

Cooling rate (kW) 27.6 Model size 10x2

Log mean temp. diff. (C) 5.6 Number of refrigerant circuits

Overall HTC (W/mK) 874 Nominal surface (m) 5

Orifice pressure drop (kPa) 41.4 Dimensions 281W x 543H x 144

Oversurface percent 4.7 Net weight (kg) 38

Design Conditions Side A - Evaporating Side B - Liquid

Refrigerant R-134a

Ref. mass flow (kg/min) 11.2

Target evaporator temp. (C) -3.0

Leaving pressure (bar ga) 1.6

Superheat (C) 6.0

Liquid temp. entering TXV (C) 35.0

Fluid type Ethylene glycol

Fluid conc. 25

Fluid mass flow rate (kg/min) 150

Entering fluid temp. (C) 5.0

Leaving fluid temp. (C) 2.0

Fluid flow rate (L/min) 143.5

Fluid fouling factor (mK/W) 0.000018

Model Parameters

Number of channels 24 25

Velocity (m/s) 1.3 0.2

Pressure drop (kPa) 14.4 24.2

Heat transfer coef. (W/mK) 1,067 5,344

Internal volume (L) 6.988 7.279


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GEA Heat Exchangers, Inc. PHE Divisio100 GEA DriveYork, PA 17406 USAPh: +717-268-6200Fax: [email protected]: www.gea-phe.com/usa

Ratings at Varying Conditions

Percent difference -15% -7% 0% 7% 15%

Pressure drop (kPa) (Side A) 12.2 13.3 14.4 15.6 N/A

Pressure drop (kPa) (Side B) 19.4 20.9 24.2 27.7 N/A

Cooling rate (kW) 23.5 25.5 27.6 29.7 N/A

Fluid flow rate (L/min) (Side B) 122.0 132.8 143.5 154.3 N/A

Fluid mass flow rate (kg/min) (Side B) 127 138 150 161 N/A

Entering fluid temp. (C) (Side B) 5.0 5.0 5.0 5.0 N/A

Leaving fluid temp. (C) (Side B) 2.0 2.0 2.0 2.0 N/A

Oversurface percent 13.7 9.0 4.7 0.7 N/A

Disclaimer

This software and the generated calculations provided herein are estimates only and should be treated as such. GEA PHE Systems North America, Inc. always strives to g

complete and accurate information, but cannot provide any guarantees. This software and its output are provided "as is" and any express or implied warranties, including,

not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall GEA PHE Systems North America, Inc. be liab

for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data

or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any

way out of the use of this software, even if advised of the possibility of such damage.


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ontact:

ustomer / Project:

odel Nomenclature:

Selection ID:

Dimension Sheet Brazed Plate Heat Exchanger

GEA PHE Systems North A

100 GEA Drive, York, PA 1

Toll Free: 1-800-774-047

Phone: 1-717-268-620

Fax: 1-717-268-616

www.gea-phe.comE-mail: info.geaphena@g

A:

B:

C:

D:

F:

G:

H:

Dimensions - inches (mm): Reference only

Connections Volume per BPHE

Circuit A Circuit B

Position 1 Position 2 Position 3 Position 4

Circuit A Circuit B

Net Weight:

Technical Data

Allowable Working Pressure and Temperature:

Max pressure Circuit A:

Circuit B:

Max temperature

Min temperature

dard construction materials:

e Alloy:

nector:

:

e Approvals:

: Code approval applies to heat exchangers only.

tallation Notes:pe in counter flow direction.

ater strainer should be installed in the fluid inlet circuit to protect the heat exchanger from blockage (20-40 mesh).

older / Sweat Connections

Use 45% silver solder (minimum), AWS grade Bag-24 or equivalent.

GEA Heat Exchan

Mounting Bracket

(optional)

A:

B:

C:

D:

F:

G:

H:

NUJ6A4C2P

CH20G

Copper 99.9%

304 Stainless Steel

316L Stainless Steel

450 psig (31.0 bar ga)

350.0 F (176.7 C)

-320.0 F (-195.6 C)UL Pending

Project Created 1/16/2014 12:22 PM

11.06 (280.9)

21.38 (543.1)

7.80 (198.1)

18.11 (460.0)

3.94 (100.1)

5.51 (140.0)

5.65 (143.5)

0.247 ft (6.988 L) 0.257 ft (7.2

84.0 lb (38.1 kg)1-5/8" IDS 7/8" IDS 1-5/8" IDS 1-5/8" IDS

450 psig (31.0 bar ga)

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