Cogeneration and trigeneration plants
 
     


Thanks to their high performance, the cogeneration/trigeneration plants, make it possible to significantly reduce energy costs on processes, where important amounts of heat, in the form of steam or hot water, and industrial cooling or electrical energy are required.

We offer you two examples of applications developed by GUASCOR for the food and chemical sectors.


TRIGENERATION PLANT IN THE FOOD SECTOR


CAMPOFRÍO ALIMENTACIÓN S.A. is a leading international company within the food sector. It produces meat products which, for the production process, requires significant amounts of heat, in the form of steam and hot water, industrial cooling and electrical energy.

In 1996, with the purpose of reducing energy costs on the production processes and equipping the company with flexible installations in order to meet both present and future energy needs in a secure and efficient manner, GUASCOR ENERGIA went into a joint venture with Campofrío in order to construct and operate a Trigeneration plant - producing heat, cold and electrical energy - .

The Trigeneration plant operates 24 hours per day, seven days per week with a total of 8,700 hours of operation annually.

The installation incorporates four turbo-charged gas engines, each one rated at 3 MW, with a total installed power of 12 MW.

To cover the cold demand on the production process, the trigeneration plant is fitted with an ammonia - water absorption machine, which runs off saturated steam obtained from the heat recovered from the engines' exhaust gases.


            

 


TRIGENERATION PLANT IN THE CHEMICAL SECTOR

OXAQUIM is a leading business in the manufacture of oxalic acid, which, for its production process, needs significant amounts of steam, industrial cooling and electrical energy.

GUASCOR ENERGIA after having carried out a meticulous program of measurements for the process's thermal energy and electrical energy demands, decided to install a Trigeneration plant, with a view to reduce the plant's energy costs and to improve its performance.



The plant was made in 1996 under a joint venture scheme with Oxaquim and the electric company ERZ , it operates 24 hours per day, 365 days per year. The plant has 10 GUASCOR FGLD 480 gas engines with a total installed power of 6.6 MW.

Control system
The plant's control system is the latest generation technology based on microprocessors. This allows everything on the plant to be supervised and operated easily from a control post. The system can produce reports to assist in its management and to optimise the plants performance.

Electrical Energy
The electrical energy is generated by 10 generators, each rated at 800 kVA at a voltage of 660 V. The generators operate in parallel with the electric company's grid, to which any electrical energy that is not consumed by the process is exported.

Thermal Energy
The steam needed for the process is supplied by two heat recovery boilers running off the engines' exhaust gases, producing 2,600 kg of saturated steam per hour at a pressure of 8 bar.

                

Hot and Cold water
The water at 70°C, which is needed by the process, is obtained by using the hot water coming off the engines' cooling circuit. Part of this water is used to convert it into cold water, at 7°, by means of a lithium bromide absorption chiller, with hardly any consumption of electric energy.

 

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