Cooling tower — Cooling tower — 7221 kW rejected, water 35.0 to 29.4 °C at a 25.6 °C wet bulb, 168.1 m³/s of air.
A EVAPCO listing, from the manufacturer's published data.
CTI STD-201: the line, not this model — EVAPCO's AT line is certified (validation C13A-99R28), but this model is not named in the disclosure that covers it, so nothing is claimed for it here: EVAPCO's disclosure names 170 of the range with a trailing F — 112-2J18F where the engineering data prints 112-2J18 — and neither document says what the F designates: the disclosure's footnotes explain the AT, SUN and ATP prefixes and ten certified options, and no suffix. The other 822 are named outright. (The prefix itself is the document's own instruction: footnote 1 says AT, SUN and ATP are prefixes to be added to the basic numeric model designations listed, which is why a listing matches on the numeric name.) What the model of it reads against the maker's published tables is a separate question.
Units: SI · US customary
| Rated water | 35.0 to 29.4 °C |
| Rated entering wet bulb | 25.6 °C |
| Water flow at the rating | 310.48 kg/s |
| Air flow at the rating | 168.11 m³/s |
| Heat rejected at the rating | 7221 kW |
| Fan motor (nameplate) | 44.74 kW |
| Type | open — the loop water over the fill |
| Cabinet | 3683 mm x 5340 mm |
Open this part in the app — as a component of its own, carrying the catalog's figures; or open the builder and pick it from the catalog picker. The solver runs it with the catalog's own data, at your design point or across a year of weather.
| Cooling-tower model, zero fitted parameters | 856 | mean −0.03 K, RMS 0.064 K, worst 0.24 K — NTU from the vendor's own Eurovent column, the shipped default exponent (−0.7, the joint minimum with Marley's table) |
| Cooling-tower model against a fourth maker's whole open-tower range, nothing fitted to it | 45 945 over 992 machines | mean −0.083 K, RMS 0.220 K, worst 1.89 K on leaving water. 0.098 K at the 78 °F rating wet bulb, where the NTU is derived, rising to 0.283 and 0.288 K at 50 and 90 °F. The fill's loading exponent was swept on either half of the range and the shipped default (−0.7, the joint minimum of EVAPCO's own LPT bulletin and Marley's table) is the minimum for this range too, so it carries no constant of its own — unlike BAC's five, which wanted −0.9 to −1.3 |
From the validation page; every row is held by a test.
Listed from published data; a listing's figures are the manufacturer's, the model that runs them is ours. Solver results never depend on who has claimed what.