Solar Domestic Hot Water

Solar Basics

Solar Spectrum

Extraterrestrial

Measuring Solar Energy

Eppley PSP

GlobalHorizontalTiltBroadbandThermopileStandard

Cosine Response

Eppley NIP

DirectTrackingBroadbandThermopileStandard

Shade Band

Diffuse Insolation

Licor Pyranometer

BroadbandGlobalHorizontalSlopePVStandard

Silicon Spectral Response

Spectroradiometer

Solar Data

Three forms of solar energy.

Passive SolarActive SolarPhotovoltaic

Passive Solar Energy

Passive Design

Use sun in the winter avoid in the summer.

Efficiency is hard to define.

Passive Design

Flat Plate CollectorHot Water Heater

Low cost hot water heater in Miami

Flat Plate CollectorHot Water Heater

Solar water heater system has four components:

CollectorTankPumpController50% system

efficiency

Concentrating Collector

Concentrating Collector

Components:OpticsGlazingAbsorber InsulationTracking

Active - Concentrator

Photovoltaic – Grid Connected

PV in CT

Solar Thermal

Solar Thermal

Solar Thermal Systems

Active hot waterPassive hot waterPool HeaterConcentratorsActive AirTranspiredTrombe Wall

Active Hot Water

Active Hot Water

Direct IndirectDrain back

Direct Flat Plate

Solar water heater system has four components:

CollectorTankPumpController50% system

efficiency

Flat Plate Collector

Flat Plate Collector components:

Plate with tubing InsulationGlazing

Water Flow in Collector

Closed Loop

Drainback

Passive Hot Water

BatchThermosiphon

Batch

Thermosiphon

Solar Pool Heater