1408 system(s) modelled in HVAC Builder on EVAPCO's own published data — 0 built by hand and 1408 derived from the listings themselves. This page is listed by HVAC Builder from published data; EVAPCO has not claimed it.
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Built in this model on the maker's own published data — not verified by EVAPCO. Each page names the document it was read from and what the model was held to.
1408 of EVAPCO's units open as systems of their own — each the listing's rating, airflow and fan, drawn as the maker builds it, derived from its catalog row rather than written by hand — in the systems directory and in the builder's systems picker under EVAPCO, by series:
| 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 |
| Closed-circuit cooler model against a second maker's whole range, nothing fitted to it | 19 131 over 416 machines | mean −0.039 K, RMS 0.234 K, worst 3.29 K on leaving fluid, every one of the 416 deriving its coil conductance and reproducing its own certified point. The worst is the 82.4 °F column, which sits +0.55 K out at an RMS of 1.05 K where every other wet bulb reads inside 0.4 K, does not move when the coil constants are swept over six hundredfold, and is recorded as a question for EVAPCO rather than fitted around. The two coil constants were swept on either half of the range and the shipped defaults kept: the sweep's own minimum sits at the edge of the grid and buys 0.03 K, so this range carries no constant of its own either |
From the validation page; every row is held by a test.
Listed from published data with the source named on every entry; a listing's figures are the manufacturer's, the model that runs them is ours. Solver results never depend on who has claimed what.