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CALCULATION SHEET<br />
CAM Nos<br />
145579-V-CA-004<br />
eALC.TrrLE: Off-Gas Chiller<br />
PROJECT NO.: 145579<br />
3<br />
RPP-24544 REV Id<br />
REV: F1_1 DATE: March 7, 2005<br />
PROJECTTITLE: Final DBVS Deslgn<br />
amec'0<br />
2. The cooling required is the capacity for sufficient heat removal in order to cool<br />
the air from stream #19 temperature to stream #29 temperature.<br />
3. Since the vendor data is not available heat exchanger is assumed to be the<br />
type in attachment 9 with pressure drop of 5 psi.<br />
4. Pipe length is to be 100ft.<br />
5. Static lift (elevation difference) Is to be no greater than 10ft.<br />
6. Chiller temperature differential Is 10•R as suggested, with engineering<br />
judgment (as being most common and efficient), by York International,<br />
Attachment 8.<br />
METHOD OF ANALYSIS<br />
Calculations were performed using a handheld calculator and later done again<br />
using MathCAD software.<br />
4 RESULTS AND CONCLUSIONS<br />
• Required cooling capacity is when Full Process is on: 32.25 tons<br />
• Selected chiller rated capacity: 40.8 tons<br />
• Required pump flow rate: 87.73 GPM<br />
• Required total dynamic head: 44.7 ft-water.<br />
5 REFERENCES<br />
1. 2001 ASHRAE Handbook —Fundamentals.<br />
2. York International, Form 150.62-E61 'Air-Cooled Scroll Chillers Style C<br />
YCAL0014 — YCAL0134','Selection Data'.<br />
S. 1989 ASHRAE Handbook — Fundamentals.<br />
4. 'CS-STC Fixed Tube Bundle/ Liquid Cooled Heat Exchangers", American<br />
Industrial Heat Transfer, Inc., Copyright 2004.<br />
C4. aa.A149MV.CA4N lo• a.4 ahU4 a« 1. Page 3 of 3<br />
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