Heat Recuperator on Grey Waters

Introductory word to heat recovery on waste waters with a view to the balneological facilities

Heat recovery is purported to recover the thermal content of the heat-carrying medium, for example, the balneological waters, back to the thermal system process.

The utilised thermal content of balneological waters is given by the values below:
1. water specific heat: about 1.15 [kWh/(m³.K)]
2. water quantity: [m³]
3. water heating: [K]

Typical example

To heat one balneological tub of about 0.3[m³] of 35[K] = 45[°C] -10[°C], the addition of about 12[kWh] of heat is required.

If we use a Heat Pumps to put this heat back into the process, we have to exert about 1/4 of this energy = about 3[kWh] to drive this pump.

Then the waste water flows away into the sewerage system as cold as the temperature of fresh water from the water main.

The given calculation is naturally simplified; it does not cover the system diversity and consequent thermal losses.

If required, it is also advantageous to extend the Heat Pumps’s function when it is improved by integrating it into the structure’s air-conditioning process.

Heat recovery on waste waters from balneological processes

22. October 2009

We have successfully tested a new combination of the heat pump MITSUBISHI ZUBADAN and the PAST this week (interconnected by refrigerant
pipe).

12. October 2009

Control and distribution unit has newly been equipped with the regulator Siemens Albatros2 RVS 63.283. More here.

10. June 2009

We have finished a new generation of the heat recuperator on grey waters this month. See pictures.

12. May 2009

We provide 5 years guarantee for the vessel of PAST since 15th May 2009.

16. March 2009

We introduce a model of the Low-Energy PLUS House. More here.

News Archive