Lumped sensible heating with documented properties
Sensible-Heating Energy & Average-Power Calculator
Calculate ideal sensible heat, average useful thermal power and input power using a documented mass, average specific heat, temperature interval, heating time and efficiency basis.
Documented sensible-heating result
Implemented general thermodynamics
Q = mc̄ΔT
Puseful = Q/t
Pievades = Puseful/η
m is kilograms, c̄ is an average J/(kg·K) value valid over the entered interval, ΔT has the same numerical magnitude in kelvins and degrees Celsius, Q is joules, t is seconds and η is a documented dimensionless overall efficiency. These are general energy/rate relations, not a heater-selection standard.
Source and limitations
OpenStax Physics gives Q=mcΔT and notes that c depends on material and phase. Its phase-transition discussion states that this relation does not cover matter undergoing a change of state. For strongly temperature-dependent c, use Q=m∫c(T)dT or a validated property model.
Why the former presets/loss factor were removed
The former page changed one volume field between litres for liquids and cubic metres for air, inserted generic water/air/oil/glycol density and c values, and always added 15% as “with losses”. It also recommended universal 10–50% safety additions. Property values vary with temperature, composition and pressure, and an efficiency η is not equivalent to multiplying useful power by 1.15.
Not equipment sizing: verify electrical supply, controls, maximum surface/film temperature, heat flux, circulation, vessel duty, startup/transient cases, overtemperature protection and applicable equipment/process codes. The calculated average input power is only as valid as the entered mass, c̄ and efficiency model.
Nikolai Shelkovenko
Nikolai Shelkovenko ir vibrāciju analīzes inženieris, kā arī uzņēmuma Vibromera dibinātājs un vadītājs. Vairāk nekā 15 gadus viņš balansē rotējošas iekārtas darba vietā, nevis uz pārbaudes stenda: mulčētājus, rūpnieciskos ventilatorus, drupinātājus, centrifūgas, vārpstas un darbvārpstas. Tieši no šī darba radās Balanset instrumenti — tie tika veidoti kā rīks, ko speciālists var aiznest pie mašīnas un lietot viens pats uz vietas, nevis kā laboratorijas aprīkojums. Vibromera dibināta 2017. gadā, un kopš 2023. gada tā atrodas Portu, Portugālē. Šeit notiek Balanset līnijas izstrāde, montāža un atbalsts. Vadošais instruments ir Balanset-1A — portatīvs analizators balansēšanai vienā un divās plaknēs, kā arī vibrāciju diagnostikai. Nikolai personīgi piedalās klientu atbalstā, sarežģītu balansēšanas gadījumu risināšanā un programmatūras izstrādē. Viņš strādā ar klientiem visā pasaulē, jebkurā valodā.
