TY  - JOUR
A1  - Döring, Bernd
A1  - Hechler, O.
A1  - Weber, F.
A1  - Sedlacek, Gerhard
T1  - Thermische Aktivierung von Fertigteildecken
JF  - HLH Lüftung/Klima, Heizung/Sanitär, Gebäudetechnik
Y1  - 2004
SN  - 1436-5103
N1  - Printausg. in der Bibliothek Bayernallee vorhanden: 13 Z 739
VL  - Jg. 55
IS  - Nr. 5
SP  - 24
EP  - 35
ER  - 
TY  - JOUR
A1  - Hagenkamp, Markus
A1  - Blanke, Tobias
A1  - Döring, Bernd
T1  - Thermoelectric building temperature control: a potential assessment
JF  - International Journal of Energy and Environmental Engineering
N2  - This study focuses on thermoelectric elements (TEE) as an alternative for room temperature control. TEE are semi-conductor devices that can provide heating and cooling via a heat pump effect without direct noise emissions and no refrigerant use. An efficiency evaluation of the optimal operating mode is carried out for different numbers of TEE, ambient temperatures, and heating loads. The influence of an additional heat recovery unit on system efficiency and an unevenly distributed heating demand are examined. The results show that TEE can provide heat at a coefficient of performance (COP) greater than one especially for small heating demands and high ambient temperatures. The efficiency increases with the number of elements in the system and is subject to economies of scale. The best COP exceeds six at optimal operating conditions. An additional heat recovery unit proves beneficial for low ambient temperatures and systems with few TEE. It makes COPs above one possible at ambient temperatures below 0 ∘C. The effect increases efficiency by maximal 0.81 (from 1.90 to 2.71) at ambient temperature 5 K below room temperature and heating demand Q˙h=100W but is subject to diseconomies of scale. Thermoelectric technology is a valuable option for electricity-based heat supply and can provide cooling and ventilation functions. A careful system design as well as an additional heat recovery unit significantly benefits the performance. This makes TEE superior to direct current heating systems and competitive to heat pumps for small scale applications with focus on avoiding noise and harmful refrigerants.
Y1  - 2021
U6  - http://dx.doi.org/10.1007/s40095-021-00424-x
N1  - Corresponding author: Markus Hagenkamp
VL  - 13
SP  - 241
EP  - 254
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Feldmann, Markus
A1  - Döring, Bernd
A1  - Kuhnhenne, Markus
A1  - Sedlacek, Gerhard
T1  - Zum Thema “Nachhaltigkeit” in der Stahlbauindustrie
JF  - Stahlbau
Y1  - 2008
SN  - 0038-9145
N1  - Printausg. in der Bibliothek Bayernallee vorhanden: 13 Z 181
VL  - Vol. 77
IS  - Iss. 10
SP  - 713
EP  - 720
ER  -