Vol 13, No 11 (2014)

Table of Contents

Editorial

Sustainable energy systems by optimal integration of renewable energy sources
Ferenc Kalmar
2707--1

Articles

Tissue culture and agamic propagation of winter-frost tolerant longicaulis arundo donax l.
Gabriella Antal, Erika Kurucz, Mikl s G bor F ri, J zsef Popp
2709-2715
Qualitative characterization of household greywater in the northern great plain region of hungary
Ildiko Bodnar, Andrea Szabolcsik, Edina Baranyai, Andrea Uveges, Norbert Boros
2717-2724
Analysis of primary energy use of typical buildings in hungary
B la Bod , Ferenc Kalm r
2725-2731
Investigation on the heating system of the mechatronics research center building using olap technology
Eva Adamko, P ter Tam s Szemes, Mihoko Niitsuma
2733-2742
Simulation of building renovation s return in energy plus
Emese B n czy, P ter Tam s Szemes, P ter Korondi
2743-2748
Energy efficiency obligation schemes in the energy efficiency directive an environmental assessment
Orsolya B nyai, L szl Fodor
2749-2755
Some environmental law questions related to the extension of paks nuclear power plant
L szl Fodor, Orsolya B nyai
2757-2763
Analysis of degree day and cooling energy demand in educational buildings
Imre Cs ky, T nde Kalm r
2765-2770
Defining energy-and cost-saving potentials and their application in optimal building refurbishment
rp d Cs k, Tam s Csoknyai
2771-2779
Relationship between large oil companies and the renewable energy sector
Gy rgy Csom s
2781-2787
Hydraulic balancing analysis of a central heating system with constant supply temperature
S ndor H mori, Ferenc Kalm r
2789-2795
Environmental assessment of a precast concrete building stock in a time perspective
S ra Hrabovszky-Horv th, Zsuzsa Szalay
2797-2804
Role of urban morphology in development of the thermal excess in the city of debrecen, hungary
S ndor Szegedi, Tam s T th, Istv n L z r
2805-2808
Price and income elasticity of electricity consumption in hungary
Judit T. Kiss, Imre Kocsis
2809-2815
Modeling and vibration analysis of limescale deposition in geothermal pipes
D nes Kocsis
2817-2824
Renewable energy consumption, r&d and gdp in european union countries
Imre Kocsis, Judit T. Kiss