An Overview of One-Sun Solar Thermal Technology

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Passive Systems and Pipe Freeze Passive systems: – Currently: pipe freeze limits markets to mild climates • Cu piping with insulation – To extend market, must freeze protect piping • Circulate warm water through the piping – Heat from auxiliary tank or interior air heat exchanger • Circulate warm interior air in duct around piping • Circulate mains water through piping with Freeze Protection Valve (FPV) – To prevent catastrophe when freeze protection fails: • Must have freezable piping ⇒ failure/freeze is minor inconvenience SEET Solar Thermal Seminar 7/26/07
Freeze Protection System Two Levels of protection: 1. Primary Freeze Protection Keeps pipes from freezing (until it fails) Freeze protection valve Natural convection loops;… 2. Fail-safe Backup: Freeze-tolerant piping SEET Solar Thermal Seminar 7/26/07
Page 1 and 2:
An Overview of One-Sun Solar Therma
Page 3 and 4:
The Sun = Radiant Energy Energy in
Page 5 and 6:
Sunlight: Waves or Photons? • As
Page 7 and 8:
The Solar Spectrum UV Visible Near
Page 9 and 10:
Uses of Solar: Photovoltaics PV Cel
Page 11 and 12:
Uses of Solar: Heat production Abso
Page 13 and 14:
SWH Technology Collectors Many type
Page 15 and 16:
Photovoltaics as Unglazed Collector
Page 17 and 18:
Flat Plate Collector Types Fin-tube
Page 19 and 20:
Evacuated Tube Collector Fin-tube a
Page 21 and 22:
Collector Performance Efficiency (
Page 23 and 24: Collector Efficiency Equation Effic
Page 25 and 26: Solar Water Heater Certification So
Page 27 and 28: SWH Technology Systems Many types F
Page 29 and 30: Solar Pool Collectors/System Inexpe
Page 31 and 32: Solar Water Heaters (SWH) • Succe
Page 33 and 34: SWH Classification: Active Active *
Page 35 and 36: Further Classification Dimensions
Page 37 and 38: Further Classification Dimensions
Page 39 and 40: Active System- Indirect Glycol in t
Page 41 and 42: Another Drainback Design Solar Sens
Page 43 and 44: Thermosiphon vs. Active Thermosipho
Page 45 and 46: Solco/Australian TSiphon 2/3 cost r
Page 47 and 48: ICS Systems SEET Solar Thermal Semi
Page 49 and 50: Unpressurized ICS: DEG/SE Thermofor
Page 51 and 52: Field Installations Migrant housing
Page 53 and 54: Evacuated Tube Collector Fin-tube a
Page 55 and 56: Performance Basics • System effic
Page 57 and 58: SDHW: Flush-mount Neat!! SEET Solar
Page 59 and 60: U.S. Sales by Year $1 billion/yr @
Page 61 and 62: Market Penetration Maximum Market P
Page 63 and 64: SWH and Cost • Present systems: -
Page 65 and 66: Key Reliability Issues • Installa
Page 67 and 68: Installation problems SEET Solar Th
Page 69 and 70: Installation Training North America
Page 71 and 72: Future Solar Thermal • Cold-clima
Page 73: Pipe Freeze Probability Probability
Page 77 and 78: Freeze-thaw Test Freezer PEX Result
Page 79 and 80: FPV Protecting Piping Collector Sto
Page 81 and 82: Passive Systems Market Extension? S
Page 83 and 84: 100% Solar HVAC Another natural pro
Page 85 and 86: Solar Combi System Schematic Compar
Page 87 and 88: Architectural/aesthetic issues Low
Page 89 and 90: Combi-System: High Solar Fraction N
Page 91 and 92: Annual Storage 1500 Solar Fraction
Page 93 and 94: Adsorption/Desorption Desiccant Sto
Page 95: Thank you for your Attention • Ju
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An Overview of One-Sun Solar Thermal Technology

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