Page 1

COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

www.genesalenergy.com


COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

PROJECT ID

Combined Cycle Power Plant, Valle De Mexico II

OUTPUT

1980/2178 kVA

TYPE

Soundproofed

SPECIALLY CONFIGURED

Genset manufactured according to a range of specific conditions as determined by the engineering

Genesal Energy has supplied an emergency power genset with a power rating of 2178 kVa which will be used as a back-up for the Combined Cycle Power Plant Valle de Mexico II in the municipality of Acolman (Mexico State). Once finalised the plant itself will have an output power capacity of 615 MW and will operate with natural gas, at an approximate cost of 700 million $USD in construction investment. The power plant itself will contribute to a 4 % increase in available energy to meet the growing energy needs in the centre of the country. This particular project has been delivered in conjunction with our Genesal Energy Mexican branch, which has for many years contributed and supported the growth of the Mexican energy sector.

PROJECT OVERVIEW The objective of this project was to supply an Electrical Generator to supply energy for auxiliary services in the Valle de Mexico II Power Plant, a combined cycle plant with two gas turbines and one steam turbine, giving a combined power output of 615 MW. Pre manufacturing required that the client validate every single documentary aspect of the project (mechanical plans, electrical schematics, etc). Additionally upon completion of the genset, the client also required all documentary evidence of Genesal on-site testing, certificates for materials incorporated, spare parts list, a quality control plan and procedures for painting and soldering.


COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

PROJECT DESCRIPTION The initial project analysis began in the first half of 2016, focusing on a study of the necessary technical specifications as well as preparing the preliminary design for the bid for this project. Genesal was successfully adjudicated the project in June 2016 and a project launch meeting was held. This was used to determine the project schedule, the estimated delivery date and to plan the official documentation which would be required by the client. Following on from this, the preparation of the mechanical plans and electrical schematics was put in to motion. These would need to be approved by the client prior to entering the manufacturing stage. At this time all fixed materials were also sourced ready for the manufacturing process once all the plans had been approved by the client. Noise ratings required that the Genset would not exceed 85dBa at 1 metre; therefore the decision was taken to install the genset and all other components within an ISO 40’HC container. Soundproofing was achieved by installing rock wool panels enclosed in metal sheets for stability and protection. The container was divided in to 3 sections – radiator / genset / control room The genset had to be over-sized to compensate from the output loss in the engine and the alternator caused by the extreme environmental conditions (50ºC + temperature at 2255 metres above sea level). The choice of engine for the genset was MTU, and the alternator Leroy Somer, the two being connected by an elastic joint.


COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

PROJECT DESCRIPTION Due to the large size of the genset coupled with the extreme climatic conditions a made to measure radiator was built for installation within the container. The radiator was made in two sections, with high temperature circuits on one side and low temperature circuits on the other side. The length of these components added up to 7 metres. To maintain good air circulation it was necessary to install 6 electric fans. The overall design specially adapted for the genset also required the additional installation of two more electric fans to extract the hot air from the container compartment containing the genset. The installation of 8 electric fans led to a significant effect on the sound levels being produced within the container. Therefore the measures taken to reduce this issue included specially chosen electric fans with reduced noise levels and also in terms of the overall noise insulation within the container. Another specific requirement which came from the client was to introduce two-stage cyclonic air filters. This is due to the high dust levels present in the final geographical location of the genset in Mexico. Part of the solution here involved the installation of air filters which were actually triple the standard size used in less extreme conditions. Additionally two bespoke exhausts were designed to be added while taking in to account the restricted space availability. As per the technical specification, the genset was built to comply with Mexican norms CFE D8500, implying that the paint used must contain specific qualities, that when dry it must attain certain levels of performance, and must be a certain colour. In this case the thickness of the paint had to exceed 150 Âľm, and the colour classification had to be yellow 17.


COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

PROJECT DESCRIPTION In the exterior of the container a certified 7,500 litre double walled fuel tank was installed, giving the genset a guaranteed 12 hours of autonomous functionality. The exhaust pipes, also on the exterior were made in stainless steel. In the control room section 2 electrical cabinets were installed. One for output and the other to control the overall operation of the diesel engine genset. The power cabinet stores all of its materials within a large metallic cabinet measuring 2000mmx600mmx800mm with an IP54 rating. The cabinet also contains a removable protective circuit breaker of 3200 A and LSIG relay protection. The circuit breaker inlet consists of all the bus-bar necessary in the connection of all the cabling coming from the alternator. The same applies in the outlet of the circuit breaker again containing all the bus-bar necessary for connecting on-site, in Mexico.


COMBINED CYCLE POWER PLANT, VALLE DE MEXICO II

PROJECT DESCRIPTION

The control panel consist of a PLC redundant control system. If the main PLC system fails, the redundant PLC will ensure the genset continues to operate without stopping. PLC controls the entire genset function as well as all associated auxiliary functions. All the genset information and all the operational controls are held in an industrial PC with a 17� tactile colour screen situated on the front of the control panel. This can be used to analyse all the measures and alarms of both PLCS redundant systems, as well as all the genset movements. The industrial PC also permits the choice of operation of the genset: Automatic start up and operation if the main grid fails, manually using buttons on the PC, synchronisation and testing.


ESPAÑA

MÉXICO

PERÚ

PANAMÁ

C/ Parroquia de Cortiñán D13-14 Pol. Ind. Bergondo 15165 Bergondo (A Coruña) ESPAÑA

Av/ Ricardo Castro 112 Colonia León Moderno 37480 León (Guanajuato) MÉXICO

Av/ Guardia Civil 355 Urb. La Campiña, Chorrillos PERÚ

Av/ Aquilino de la Guardia PH Molón Tower, Piso 6, Bella Vista PANAMÁ

Email: comunicacion@genesal.com Tlfn.: +34 981 674 158

Email: icrespo@genesal.com Cel.: +52 1 477 2234810

Email: mmogollon@genesal.com Cel.: +511 2665495 /
RPC: 964151846

Email: olyferrer@genesal.com Cel.: +507 65840125

WWW.GENESALENERGY.COM

Profile for GENESAL ENERGY

Combined cycle power plant  

Genesal Energy has supplied an emergency power genset with a power rating of 2178 kVa which will be used as a back-up for the Combined Cycle...

Combined cycle power plant  

Genesal Energy has supplied an emergency power genset with a power rating of 2178 kVa which will be used as a back-up for the Combined Cycle...

Advertisement