SPANISH HYDROGEN ASSOCIATION

CETREN

SMEs with less than 50 employees

PASEO DE LA CASTELLANA, 91. PLANTA 10 28046, MADRID

+34686676224

https://www.cetren.es

cetren@cetren.es

Company’s description

Since its creation in 1980, Cetren has promoted, boosted, and disseminated railways as a transport mean at a national and international level.

Cetren is a Certification Body and Independent Safety Assessor accredited by the National Accreditation Entity, ENAC. Attributes that characterize us as independent, impartial, competent, and experienced, among others, led us to be notified by the Spanish Ministry of Public Works to the European Commission and to the other Member States as the Spanish Notified Body for “EC” conformity and suitability assessment to use interoperability constituents and “EC” subsystem verification. These same attributes have allowed Cetren to be the Designated Body by the National Safety Agency.

In 2019 have expanded the traditional activities with the Testing Laboratory, equipped with qualified professionals and the latest technologies necessary to carry out the tests required in the Technical Specification for Interoperability persons with disabilities and persons with reduced mobility. In 2007 Cetren was established as the first Private Center approved by the National Safety Agency under the Spanish Ministry of Public Works to impart all Railway personnel certificates.

Main lines of business of the entity

Association.
Certification / Inspection.
Laboratory.
Training.

Kg/h de H2	↔	Nm3/h de H2 gas	↔	litros/h de H2 líquido1	↔	Potencia2 (kW)
1	=	11,12	=	14,12	=	33,33
0,0899	=	1	=	1,270	=	3,00
0,0708	=	0,788	=	1	=	2,359
0,00833	=	0,0926	=	0,1177	=	0,278
0,0300	=	0,333	=	0,424	=	1

Masa H2 (kg)	↔	H2 gas (Nm3)	↔	H2 líquido1 (litros)	↔	Energía2 (MJ)	↔	Energía2 (kW·h)
1	=	11,12	=	14,12	=	120	=	33,33
0,0899	=	1	=	1,270	=	10,8	=	3,00
0,0708	=	0,788	=	1	=	8,495	=	2,359
0,00833	=	0,0926	=	0,1177	=	1	=	0,278
0,0300	=	0,333	=	0,424	=	3,6	=	1

Presión (Bar)	1	50	100	150	200	250	300	350
Factor de compresión	1	1,032	1,065	1,089	1,132	1,166	1,201	1,236
Presión (Bar)	400	500	600	700	800	900	1000
Factor de compresión	1,272	1,344	1,416	1,489	1,560	1,632	1,702

Densidad	0,0899 kg/Nm3 (gas) 0,0708 kg/l (liquido)
Poder calorífico inferior	120 MJ/kg
Poder calorífico superior	141,86 MJ/kg
Límites de explosión	4,0 - 75,0 % (concentración de H2 en aire)
Límites de detonación	18,3 - 59,0 % (concentración de H2 en aire)
Capacidad calorífica específica	Cp=14,199 KJ/(kg·K) Cv=10,074 KJ(kg·K)
Coeficiente de difusión	0,61 cm2/s

SPANISH HYDROGEN ASSOCIATION

CETREN

Company’s description

Main lines of business of the entity

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Asociación Española del Hidrógeno.Todos los derechos reservados.

Gestión web: Ariema Energía y Medioambiente S.L.

Valor energético basado en poder calorífico inferior