Steinweg, J.; Kliem, F.; Littwin, M.; Rockendorf, G.: Pipe internal recirculation in storage connections - An unseen efficiency barrier. In: Energy Procedia 73 (2015), S. 341-349. DOI: https://doi.org/10.1016/j.egypro.2015.07.704
Zusammenfassung: | |
Basically, pipe internal recirculation (PIR) at storage connections is a known phenomenon. However, it is not sufficiently considered by storage manufacturers and installers. There is still a lack of awareness and quantification of the PIR effect in typical installations and practice-oriented solutions. Within this paper, the final results of a research project aiming at the detailed qualitative description and quantification of the effect including extrapolation of the results regarding the PIR impact on storage heat losses are presented. This includes the results regarding the influence of the pipe's material (copper, stainless steel, plastic), diameter, insulation and connection type (direct to storage, indirect via immersed or external heat exchanger) on PIR including their effects on the overall heat losses of ready installed storage tanks. Derived from generalized measurements, a calculation method has been developed, which enables to determine the annual heat losses caused by PIR in domestic hot water storages using dynamic system simulations (TRNSYS). In conclusion, different measures for the reduction of PIR induced heat losses and their effectiveness may be presented. © 2015 The Authors. | |
Lizenzbestimmungen: | CC BY-NC-ND 4.0 Unported |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2015 |
Die Publikation erscheint in Sammlung(en): | An-Institute |
Pos. | Land | Downloads | ||
---|---|---|---|---|
Anzahl | Proz. | |||
1 | Germany | 40 | 43,96% | |
2 | United States | 27 | 29,67% | |
3 | France | 5 | 5,49% | |
4 | China | 3 | 3,30% | |
5 | Austria | 3 | 3,30% | |
6 | Vietnam | 2 | 2,20% | |
7 | No geo information available | 2 | 2,20% | |
8 | Canada | 2 | 2,20% | |
9 | Netherlands | 1 | 1,10% | |
10 | Nigeria | 1 | 1,10% | |
andere | 5 | 5,49% |
Hinweis
Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.