Wieland Unclaimed
8 listing(s) in HVAC Builder's catalog from Wieland's published data, selectable in the builder and solved with the catalog's own figures. This page is listed by HVAC Builder from published data; Wieland has not claimed it.
- Pipe-in-pipe exchangers — 8
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Listings
Showing 1–8 of 8
Wieland WKC 10 coaxial condenser (9.6 kW at 1.0 m³/h of 30 °C water, 45 °C condensing, R410A)
Coaxial condenser — 9.6 kW into water 30.0 to 38.3 °C, condensing at 45.0 °C, 0.28 kg/s.
Wieland WKC 15 coaxial condenser (21.0 kW at 1.6 m³/h of 30 °C water, 45 °C condensing, R410A)
Coaxial condenser — 21.0 kW into water 30.0 to 41.3 °C, condensing at 45.0 °C, 0.44 kg/s.
Wieland WKC 20 coaxial condenser (32.7 kW at 2.7 m³/h of 30 °C water, 45 °C condensing, R410A)
Coaxial condenser — 32.7 kW into water 30.0 to 40.4 °C, condensing at 45.0 °C, 0.75 kg/s.
Wieland WKC 45 coaxial condenser (70.0 kW at 5.4 m³/h of 30 °C water, 45 °C condensing, R410A)
Coaxial condenser — 70.0 kW into water 30.0 to 41.2 °C, condensing at 45.0 °C, 1.50 kg/s.
Wieland WKE 10 coaxial evaporator (10.2 kW at 1.6 m³/h of 12 °C water, 0 °C evaporating, R410A)
Coaxial evaporator — 10.2 kW from water 12.0 to 6.5 °C, evaporating at 0.0 °C, 0.44 kg/s.
Wieland WKE 16 coaxial evaporator (14.7 kW at 2.5 m³/h of 12 °C water, 0 °C evaporating, R410A)
Coaxial evaporator — 14.7 kW from water 12.0 to 6.9 °C, evaporating at 0.0 °C, 0.69 kg/s.
Wieland WKE 24 coaxial evaporator (17.7 kW at 3.0 m³/h of 12 °C water, 0 °C evaporating, R410A)
Coaxial evaporator — 17.7 kW from water 12.0 to 6.9 °C, evaporating at 0.0 °C, 0.83 kg/s.
Wieland WKE 44 coaxial evaporator (41.9 kW at 7.0 m³/h of 12 °C water, 0 °C evaporating, R410A)
Coaxial evaporator — 41.9 kW from water 12.0 to 6.9 °C, evaporating at 0.0 °C, 1.94 kg/s.
How the model reads against Wieland's data
| Coaxial exchanger model against a maker's measured condenser and evaporator tables, one conductance per model | 554 over 8 models | every rating reproduced exactly. Condensers on R410A (R404A/R507 is printed identical): −13 to +16 % of the printed duty, RMS 7.9 %, the condensing temperature within 3.0 K — at one flow the duty is proportional to the temperature difference as the model has it, but the conductance rises with flow (as flow^0.4 on three of the four) and at the lowest flows the hot gas heats the water past the condensing temperature, which no isothermal model does. Evaporators on R410A: −18 to +63 %, RMS 22 %, within 3.2 K — the conductance rises with flow (flow^0.3–0.5) and with the temperature difference (as boiling that strengthens with the heat flux, and a 5 K suction superheat that takes more of the tube the smaller the difference, would make it), so one conductance over-reads most at a low flow and a 6 K difference. The other refrigerants are R410A times one ratio each — R134a 12 % under on the condensers and 20 % under on the evaporators, R404A/R507 7 % over on the evaporators — which a listing that carries no refrigerant reads as R410A |
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.