CONTENT

Volume 21, issue 1/2018

National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea -

Main Contribution of “G” Plant to Developing of Romanian Technology for

Heavy Water Production

Gheorghe Ionita ..........................................................................................     5

Cryoadsorbtion Experimental Stand

Sebastian Brad, Amalia Soare, Alin Lazăr, Mihai Vijulie ..................................     19

Some Issues in Modelling of Competing Permeation of Hydrogen

Isotopes Through Metals - A Review

Nicolae Bidica .............................................................................................    29

Some Failure Modes of ICSI Cryogenic Distillation System as

Basis for Safety Analysis

George Ana, Nicolae Sofilca, Alina Niculescu ....................................................   39

Performance Evaluation of a PEM Electrolyser Using CFD Modelling

Elena Carcadea, Mihai Varlam, Konstantin Petrov, Catalin Jianu,

Daniela Ion-Ebrasu, Laurentiu Patularu, Mircea Raceanu, Dorin Schitea ...........  49

Characterising of a Small High Temperature Superconducting Coil

Intended to be Used as Energy Storage Unit for Spacecraft Power Systems

Mariana Iliescu, Mihail Culcer, Florian Stefanescu, Marian Curuia,

Elena Carcadea, Nicu Bizon, Simona Maria Raboaca, Gabriel Rasoi,

Mihai Varlam .............................................................................................    57

Performances Comparison for a Photovoltaic System by Using Three

Maximum Power Point Tracking Algorithms

Cristian Hoarcă, Ki-Yeol Shin, Luminita Mirela Constantinescu,

Alexandru Bădiţă, Laurenţiu Pătularu ..........................................................    67

INC-DTCI - ICSI Rm. Vâlcea Participation in Hylaw Project

Ioan Iordache,  Dorin Schitea, Alexandru Floristean, Ioan Stefănescu,

Nicolas Brahy .............................................................................................   75

Obtaining of Fuel Gas from Catalytic Conversion of Residual Biomass

Elena David, Adrian Armeanu, Claudia Sandru, Violeta Niculescu .....................   83

Energy Potential of Geothermal Gas and Sewage Sludge Biogas.

A Laboratory Stage Investigation

Establishing Routine Procedure of Radium 226 Activity Concentration

Determination in Water Samples Using Liquid Scintillation Counting

Carmen Varlam, Ionut Faurescu, Irina Vagner, Denisa Faurescu .................. 109

Assessment of Heavy Metal Sludge Quality in a Municipal

Wastewater Treatment Plant

Claudia Sandru, Mihaela Iordache, Andreea Maria Iordache,

Roxana Elena Ionete ...............................................................................  117

Instructions for Authors .....................................................................................   125