An Overview of One-Sun Solar Thermal Technology

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SWH Classification Passive * Integral collectorstorage (ICS) Irradiated tank of water Thermosiphon Storage above collector: hot water rises Other Percolation; thermal pump;… For these system types, storage is on the roof *No pump/fan, sensors, wires, or controller SEET Solar Thermal Seminar 7/26/07
Further Classification Dimensions • Collector – Glazings (for flat-plate @ atmospheric pressure) – Unglazed » Can be used for pool, domestic hot water, and space heating » Not common in solar water heaters – One glazing (most common) – Multiple glazings (rare) – Surface coatings – Non-selective: high solar absorption and high infrared loss – Selective: high solar absorption and low infrared loss » Thin IR-transparent coating on IR-reflective substrate » IR-reflective elements in paint mixture – Evacuated tubes – Rare in the US; dominant in China – May become common in US? 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: SWH Classification: Active Active *
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 and 74: Pipe Freeze Probability Probability
Page 75 and 76: Freeze Protection System Two Levels
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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