how to model cooling tower electric input ratio in equest

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Hi,

How the cooling tower efficiency should be modeled in eQUEST for LEED Base
case? and where these values are given in ASHRAE?

Thanks
Vamshi.

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Vamshi,

An axial fan cooling tower is required per G3.1.3.11. Required cooling tower efficiency is 38.2 gpm/hp per ASHRAE 90.1, Table 6.8.1G. Let eQUEST autosize the cooling tower, and use the design flowrate shown on the PV-A report to determine the fan HP. Then convert to kW and enter the value in FAN-KW/CELL. The cell is normally grayed out, so right-click the cell and enter the kW value by changing the user default.

Regards,
Bill

[Senior Energy Engineer 28Jun2012]

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