Numerical Modeling and Experimental Validation of Heat Pipe Solar Collector for Water Heating
2012 (Engelska)Självständigt arbete på avancerad nivå (masterexamen), 80 poäng / 120 hp
Studentuppsats (Examensarbete) [Forskning på konstnärlig grund]
Abstract [en]
This work studies the performance of heat pipe solar collector for water heating. Experimental results are validated using numerical modeling. Homemade heat pipes with distilled water as a working fluid were used for experimental tests. Both natural and forced convective heat pipe condensing mechanisms are studied and their results are compared with conventional natural circulation solar water heating system. Cross flow and parallel flow heat exchanger were tested in forced type heat pipe condensing mechanism. Experimental and numerical results showed good agreement. Heat pipe solar collectors outperformed conventional solar collector because of their efficient heat transport method. Forced convective heat exchanger was found to give higher efficiency compared to natural convective heat pipe condensing system. However, natural convective heat pipe condensing is free from parasitic power and low system weight. It also showed appreciable system efficiency and can be further developed to be used in rural areas where grid electricity is scarce. Cross flow and parallel flow heat exchanger have been tested for forced convective heat pipe condensing mechanism and no appreciable difference was found due to higher fluid velocity in heat exchangers.
Ort, förlag, år, upplaga, sidor
2012. , s. 60
Nyckelord [en]
Heat pipes, Solar Collector, Solar Water Heating, Natural Circulation, Forced Circulation, Heat Exchanger
Nationell ämneskategori
Energiteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-77378OAI: oai:DiVA.org:kth-77378DiVA, id: diva2:504099
Ämne / kurs
Maskinteknik
Utbildningsprogram
Teknologie masterexamen - Hållbar energiteknik
Presentation
2012-02-03, 09:00 (Engelska)
Uppsök
teknik
Handledare
Examinatorer
2012-02-222012-02-062022-06-24Bibliografiskt granskad