Uninsulated Pipes of Solar Water Heater - Thermosyphonic System
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Uninsulated Pipes of Solar Water Heater - Thermosyphonic System
by Joseph Nowarski
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Uninsulated Pipes of Solar Water Heater - Thermosyphonic System
by Joseph Nowarski
- 0 Ratings
- 0 Want to read
- 0 Currently reading
- 0 Have read
Uninsulated pipes of solar waters heaters in Israel increase national electricity consumption by 200 millions kWh/year, 40 millions USD per year. Simple solution having 2-4 months return of investment period can stop this waste.
This work introduces energy balance of thermosyphonic solar water heater (SWH) without pipes' thermal insulation. The results are used for economic evaluation.
Thermal insulation of SWH is required by solar legislation in Israel and national standards. Actually there is not any insulation on SWH pipes. Outside pipes' thermal insulation, if installed, is completely damaged after 1-2 years. Pipes inside buildings usually are in sleeve made of plastic pipe used for electric cables. Plastic sleeves on hot water supply pipes are good equivalent for thermal insulation. However lack of insulation or sleeve on outside circulation pipes increases need for backup resulting in huge national cost.
Subjects
analysis, building energy, building standards, economic evaluation, energy balance, 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?
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Book Details
Table of Contents
| 1. Glossary | ||
| 2. Introduction | ||
| 3. Energy Units | ||
| 4. Energy Balance of Thermosyphonic SWH with Insulated Pipes | ||
| 5. Solar Water Heater | ||
| 6. Energy Output of Solar Collector | ||
| 7. Monthly Changes of Solar Collector Energy | ||
| 8. Solar Collector Efficiency | ||
| 9. City Water (Cold Water) Temperature | ||
| 10. Storage Tank Average Temperature | ||
| 11. Circulation Hours | ||
| 12. Ambient Temperatures in Circulation Hours | ||
| 13. Water Temperature in Circulation Pipes | ||
| 14. Hot Water Supply Temperature | ||
| 15. Water Flow | ||
| 16. Energy Demand for Hot Water | ||
| 17. Energy Losses | ||
| 18. Conservative Approach | ||
| 19. Formulas, Input Values and Detailed Calculations | ||
| 20. Pipes Length for Energy Balance | ||
| 21. Energy in Water Losses in Circulation Pipes (CircEW) | ||
| 22. Initial Heating of Circulation Pipes Mass (CircM) | ||
| 23. Heat Transfer in Circulation Pipes (CircHX) | ||
| 24. Energy of Hot Water in Water Supply Pipe (SupEW) | ||
| 25. Initial Heating of Hot Water Supply Pipe's Mass (SupM) | ||
| 26. Heat Transfer in Hot Water Supply Pipe (SupHX) | ||
| 27. Storage Tank Heat Transfer (STHX) | ||
| 28. "Other" Losses | ||
| 29. Sum of Losses | ||
| 30. Energy Balance of SWH | ||
| 31. Application of Plastic Sleeve on Outside Pipes | ||
| 32. National Impact | ||
| 33. Economic Evaluation | ||
| 34. References |
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History
- Created December 4, 2017
- 3 revisions
| December 4, 2017 | Edited by Joseph Nowarski | Edited without comment. |
| December 4, 2017 | Edited by Joseph Nowarski | Added new cover |
| December 4, 2017 | Created by Joseph Nowarski | Added new book. |