Customers can come to Hellebrekers for various forms of energy-efficient heat recovery.
Heat recovery is a technology for reusing heat in exhaust air and waste water. The energy losses are unnecessarily high in many buildings.
Customers can come to Hellebrekers for various forms of energy-efficient heat recovery.
Heat recovery from ventilation air
In large buildings such as a swimming pool, (a percentage of) the indoor air is continuously refreshed. The moist, dirty air from the space inside is exhausted to the outside. A heat recovery system ensures that the heat in the exhaust air is transferred to the fresh supply of (outside) air. The heat recovered by the system can be used to pre-heat the fresh ventilation air or to pre-heat the replenishment water supply for the swimming pool.
Heat recovery from backwashing and rinsing water
Swimming pool water (backwashing and rinsing water) used for cleaning dirty filters is discharged to a buffer tank. The cold replenishment water passes through a heat exchanger in or near the buffer tank first. The heating system then raises the temperature of the replenishment water to the target value. This form of heat recovery reduces the amount of gas consumed by the heating system. Hellebrekers uses the units supplied by AquaCond.
Heat recovery from waste water
A 3-minute shower requires about 18 litres of hot water, which normally flow straight into the sewer system. In swimming pools and sports complexes in particular, where roughly 300,000 visitors on average take a shower each year, a lot of residual heat is lost in the process. A shower heat recovery system captures some of this waste heat and uses it to preheat the cold supply water. The heat exchanger installed in the system preheats the cold water before it goes to the shower mixer tap. The heating system does not have to supply as much hot water as a result, leading to a significant reduction in the energy bill.
Heat recovery from sewage water
In sewage heat recovery, heat is recovered from sewage water. By installing heat exchangers in the sewer or above ground, heat can be recovered from the sewage water. Heat pumps are then used to raise the temperature of rooms or the tap water supply to the target value.
