Isi geri kazanimi WASTE HEAT RECOVERY cementirossi - EXERGY

WASTE HEAT RECOVERY cementirossi

Pederobba (TV), Italy

HEAT RECOVERY - PEDEROBBA (TV)

Client name:
CEMENTIROSSI SPA

Plant Lcation:
PEDEROBBA (TV), ITALY

Date of implementation:
2020

Plant size:
3,5 MWE

Application:
HEAT RECOVERY (CEMENT FACTORY)

Cement plant production line capacity:
2500 tpd clinker

Heat source temperature (diathermic oil):
280 C°- 100 C°

Water or cooling agent:
AIR COOLED CONDENSING

Efficiency gross:
22,8%

Installation:
OUTDOOR

The challenges of this project involved respecting the restrictions of the site due to the nearby area, which also imposed strict limits for noise emissions. The customer also requested a non-flammable working fluid in the ORC cycle to ensure the safety of the plant’s operations. 

To meet the first requirement connected to the restricted space available onsite, EXERGY opted for a compact solution, where the unit was preassembled on skids with the turbines, generator and lubrification and seal oil unit closed in a container of standard ISO40 measures. Closing the turbines and generator inside the container also allowed noise to be mitigated in order to respect the limits on noise emissions imposed in the nearby area

In order to keep a high efficiency of the cycle while employing a non flammable working fluid EXERGY optimised the cycle design and introduced a reheating system in combination with the ORC. Adding a reheating system to the ORC cycle resulted in 10% additional cycle efficiency compared to an analogue cycle with the same temperature limit.

With this solution for CementiRossi, EXERGY has enhanced the WHR ORC system performance, delivering the maximum efficiency of the cycle and a safer operation for the plant thanks to the choice of a non-flammable working fluid.

 

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