LOWEX NEWS NO 5
JUNE 2002
EXERGY ANALYSIS
HUMAN BODY EXERGY CONSUMPTION AND THERMAL COMFORT
THE FIFTH EXPERT MEETING
The meeting was very productive and many
important decisions were made. An exergy
analysis tool seems to be in good developing
progress and the system concepts to be further
analysed were chosen. We also heard some
very interesting technical presentations. One
was about LowEx systems in retrofits
in Norway that may be introduced in the next
issue of LowEx news. The other presentation
was about "Human-body exergy consumption
varying with the combination of room air
temperature and mean radiant temperature".
There is an article about this issue in this
LowEx news. A workshop about LowEx
systems in existing buildings was held. There
was a presentation about cases from Slovenia,
Greece and The Netherlands. A short analysis
about the market for low temperature heating
systems in retrofit was made for all the
countries present. In the next meeting a follow
up workshop will be held and the next issue of
LowEx news will be about low temperature
heating systems in existing buildings. An action
list was made with many actions to be done
before the next expert meeting in Oslo.
The fifth expert meeting was held in
Sophia-Antipolis 23–25 april 2002.
Participants from France, Italy,
The Netherlands, Japan, Norway,
Sweden and Finland attended the
meeting.
Participants in the meeting
(from the left):
Masanori Shukuya,
Koichi Isawa,
Paul Ramsak (sitting),
Per Gundersen,
Mrs. Gundersen (visiting),
Dietrich Schmidt,
Giorgio Giorgiantoni,
Markku J. Virtanen,
Åsa Nystedt,
Johann Zirngibl,
Claude François
and Peter Op´t Veld.
Åsa Nystedt, VTT, Finland
LOWEX NEWS NO 5
2
JUNE 2002
RATIONAL ENERGY-SAVING MEASURE CHANGES
HEATING EXERGY-CONSUMPTION PATTERN DRAMATICALLY
Let us compare three numerical examples of
exergy consumption during the whole process
of space heating from the power plant,
through the boiler to the building envelope in
the steady state as shown in Figure 1. Case 1
assumes that the thermal insulatio