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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 />

A5-638

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