A heat recovery system from exodraft can extract heat energy through a heat exchanger from exhausted flue gasses and convert it into hot water with the extracted heat energy. Therefore, up to 80% of the heat can be recovered, that would otherwise have been lost through the chimney system and can be brought back at converted to the heating system. The performance of a heat recovery ventilation (HRV) system depends on multiple factors, for example: how airtight the dwelling is, the design of the heat exchanger and the application from which the waste heat I recovered. A heat recovery unit can convert waste heat into useful heating for offices, houses, bathing facilities and even returned to district heating.
How does heat recovery system work?
The heat recovery process works by continuously converting waste heat which gets extracted from flue gasses and converting it into hot water. Responsible for this process is a heat exchange unit in the heat recovery system, that is incorporated into the flue gas chimneys. The exhausted flue gasses can have a temperature up to 1200°C and can be cooled down to 30°C till 60°C. In general, a heat exchanger unit works through transferring the air heat onto a medium, like water, oil, metal or air which can be used in e.g. the central heating system in the factor and offices. Different heat recovery solutions for various surroundings and settings got developed to facilitated different forms of heat extractions. One of the most used forms is a waste heat recovery or flue gas heat recovery system.
How can a waste heat recovery system be an effective energy saving solution?
A waste heat recovery system is especially used on an industrial scale with a vast amount of exhaust / flue gasses. Rising energy prices, environmental standards for companies and the legal reduction for CO² emissions create a rising demand and popularity for this type of system. Waste heat is generated through the everyday usage of electrical machines, large boilers units or cooling systems. The rate for lost energy through flue, exhausted gas or general process heat is around 15 to 20 %. But through a waste heat recovery system can up to 90% of the exhausted heat be recovered. A heat recovery unit is therefore especially useful, when a vast amount of heat gets exhausted through a ventilation system.
Especially industrial bakeries ,beverage productions ,drying facilities and metal processing plants implement and profit extensively from a waste heat recovery system. These industries are also strongly affected by the changing energy prices and are depending on a stable and calculatable costs for heating. Energy-intensive industrial companies get a greater independence from changing energy prices and can save up to 16% of the energy costs. A waste heat recovery system is usable for nearly all fuel types like oil, gas or various kinds of liquids. The won energy can increase significantly the boiler efficiency.