Experimental and Performance Analyses with Frequently Discrete Usage of the Hot Storage Tanks

• Autorzy: Qandil Ahmed , Al Rababa’a Khalid , Aljabarin Nader , Al Ganem Zaid Abu , Abdullah Rasheed

Identyfikatory

DOI

10.12911/22998993/94626

• Języki publikacji: EN

Abstrakty

EN

Hot water storage tanks are devices with high energy consumption, used widely in residential, industrial and commercial sectors. The hot storage tank is a key device in numerous applications such as electrical heaters, solar thermal storage, solar electrical energy production and many others. Its superior technology is favorable for the designers and has a great impact on the market competition. Hot water storage tanks were studied under continuous usage feature, for different inlet types, flow rates, thermal stratification in static and dynamic modes, both experimentally and numerically. The real discrete usage feature has not been analyzed in a proper way. In this study, the experimental and performance analyses with frequent discrete usage of the hot storage tank were performed. Different flow rates of 3, 6, and 9 l/min with 5, 10 and 20 min discrete usage waiting periods were studied. It was found that the thermocline thickness and mixing number increases for both increasing the flow rate due the increment in turbulent mixing potential and increasing the waiting period due to the increase in heat transfer time available between the hot and cold layers. The real data was drawn as is to permit further analyses and data comparison to other researchers. The effect of waiting periods can be used in solar HST to maximize the efficiency of solar collectors as the solar collector efficiency is high at low temperatures.

Słowa kluczowe

EN

storage tank; discrete usage; stratification; thermocline thickness; mix number; heat transfer; usable energy

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2019
• Tom: Vol. 20, nr 1
• Strony: 52--60
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Qandil Ahmed

• Mechanical and Industrial Engineering Department, Applied Science University Private, Amman, Jordan

autor

Al Rababa’a Khalid

• Mechanical Engineering Department, Tafila Technical University, Tafila, Jordan

autor

Aljabarin Nader

• Natural Resources and Chemical Engineering Department, Tafila Technical University, Tafila, Jordan

autor

Al Ganem Zaid Abu

• Mechanical Engineering Department, AL Balqa Applied University, Amman, Jordan

autor

Abdullah Rasheed

• Mechanical Engineering Department, Tafila Technical University, Tafila, Jordan

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).