Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems
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Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems
by Joseph Nowarski
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Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems
by Joseph Nowarski
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This work introduces development of formulas of heat transfer in solar water heater pipes to allow calculations of energy losses in pipes.
Solar legislation in Israel requires installation of solar water heaters in new buildings up to 9 floors from roof. The legislation from year 1980 is based on technology of late 70's. This publication compares old types of installation (steel pipe) with the current common practice (2017) of installation of solar water heaters in Israel.
Thermosyphonic systems are installed up to 4 floors below roof, based on old believing regarding waste of time waiting for hot water, waste of water and energy losses in long pipes.
This work analyzes a possibility of installation of thermosyphonic systems in lower floors than 4th floor under the roof.
The results are energy losses, waste of time waiting for hot water and waste of water depending on pipe's length and distance to apartment.
This publication may be helpful for techno-economic evaluation of water heating options and determination of the optimum solutions. It also contains large number of useful formulas, data and information and can serve as basic material for solar water heaters calculations.
Subjects
building energy, building standards, Economic Evaluation, energy conservation, energy simulation, green development, green buildings, optimization, renewable energy, solar energy, solar calculations, solar heater optimization, solar law, solar legislation, solar optimization, solar radiation, Solar Water Heater, SWH, SDWH, specific conductivity, sustainable development, thermal insulation, thermal conduction, thermal resistance, thermosiphonic, thermosyphonic, water heater, water heatingShowing one featured edition. View all 1 editions?
| Edition | Availability |
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1
Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems
2017, academia.edu
eBook
in English
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Book Details
Table of Contents
| 1. Glossary | ||
| 2. Introduction | ||
| 3. Energy Units | ||
| 4. Heat Transfer | ||
| 5. Heat Transfer in SWH Pipes | ||
| 6. Piping System | ||
| 7. Formula for Heat Transfer in Single Pipe | ||
| 8. Formula of Heat Transfer through Double Pipe | ||
| 9. Thermal Resistance of Laminar Layers | ||
| 10. Total Thermal Resistance of Two Pipes and Laminar Layers | ||
| 11. Sleeve Instead of Insulation | ||
| 12. Double Sleeve Instead of Insulation | ||
| 13. Sum of Thermal Resistance in Pipe's Assembly | ||
| 14. Hot Water Pipe's Material | ||
| 15. Diameter of Hot Water Supply Pipe | ||
| 16. Pipes Insulation | ||
| 17. Heat Transfer in Circulation Pipe Located Outside | ||
| 18. Hot Water Supply Pipe | ||
| 19. Heat Transfer in Hot Water Supply Pipe Located Outside | ||
| 20. Heat Transfer in Hot Water Supply Pipe Located Inside | ||
| 21. Energy for Replacement of Cold Water in Pipes | ||
| 22. Initial Heating of Pipe and Insulation Mass | ||
| 23. Waste of Time Waiting for Hot Water | ||
| 24. Waste of Water | ||
| 25. Results of Calculations | ||
| 26. Analysis of Results | ||
| 27. References |
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History
- Created December 5, 2017
- 3 revisions
| December 5, 2017 | Edited by Joseph Nowarski | Edited without comment. |
| December 5, 2017 | Edited by Joseph Nowarski | Added new cover |
| December 5, 2017 | Created by Joseph Nowarski | Added new book. |