Before buying a recovery unit, a quick payback calculation shows whether it makes sense. You only need a few field numbers and the local energy price. The Core Formula Annual energy saved (kWh) = 1.2 x airflow (m3/h) x eta x dT (C) x hours/year / 1000 Where 1.2 is the approximate volumetric heat capacity […]
Récupération de chaleur perdue : concepts et retour
Almost every industrial and commercial process rejects heat: exhaust gases, warm water, or hot product streams. Waste heat recovery captures that energy for reuse instead of dumping it. Temperature Levels High grade (>400 °C): Recuperators, regenerators, steam generation. Medium grade (100–400 °C): Air-to-air plate or heat-pipe exchangers, absorption chillers. Low grade (<100 °C): Ventilation recovery, […]
Estimer le retour sur investissement de la recuperation de chaleur : une demarche pratique avec calculateur
Before spending capital on an air-to-air heat recovery system, any serious buyer asks the same question: how long until it pays for itself? The answer is not a mystery and it does not need specialist software, a spreadsheet and a clear method give a defensible simple-payback number that survives scrutiny from finance and from the […]