Cover of: Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems by

Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems

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Last edited by Joseph Nowarski
December 5, 2017 | History

Heat Transfer in Solar Water Heaters Pipes - Thermosyphonic Systems

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Publish Date
Publisher
academia.edu
Language
English
Pages
45

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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.

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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

The Physical Object

Format
eBook
Number of pages
45

ID Numbers

Open Library
OL26404673M
Google
PKF1ZWRWRRW, 6r82DwAAQBAJ

Links outside Open Library

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History

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December 5, 2017 Edited by Joseph Nowarski Added new cover
December 5, 2017 Edited by Joseph Nowarski Edited without comment.
December 5, 2017 Created by Joseph Nowarski Added new book.