Solar hot water systems pot

SOLAR POWER

HOT WATER SYSTEMS

1

1. Introduction.

2. Why Choose Solar Powered Hot Water ?

3. Applicatons of Solar Powered Hot Water .

4. Solar Powered Hot Water Components .

5. How the System Works ?

6. Solar Tracking.

7. How the Instalation Manual – Operation?

8. References .

0. Overview

2

1. Introduction

• Overview :

1.1 What is a Solar Powered Hot Water ?

1.2 What do you need to know about

Solar Hot Water ?

1.3 What Solar Hot Water Systems are Compliant?

1.4 The history of Solar Powered Hot Water.

1.5 How the used of Solar Powered Hot Water ?

1.6 Trends and Improvements of the Solar Powered Hot

Water.

3

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

– Solar hot water systems consist of solar collector

panels on the roof of a building and a storage tank.

The sun's rays heat the water much the same as water

in a hose left on the lawn on a hot day. Because they

only generate hot water when the sun is shining, they

are generally equipped with a gas or electric or heat

pump booster to ensure you don't run out.

4

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

Heat Pump

Booster

5

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

– Some systems have the storage tank and the solar

collector panels on the roof. However, if you don't like

the look of the storage tank on the roof or if your roof

can't support the weight - you can choose a pumped

system that has only the collector panels on the roof,

while the tank is at ground level.

6

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

7

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

– A Solar Hot Water System requires only daylight to

generate heat so can still generate hot water on a

cloudy day. There are three main components in a

Solar Hot Water system for domestic applications:

• Solar Panels – that collect heat from ambient daylight

and transfer it to a solar fluid (a glycol/water solution).

• Plumbing System – which includes simple piping and a

pump, to pump the solar fluid around the system to

heat the water.

• Hot Water Cylinder – which stores the hot water for

domestic use.

8

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

Solar Panels

9

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

Plumbing System

10

1. Introduction

• 1.1 What is a Solar Powered Hot Water ?

Hot Water Cylinder

11

1. Introduction

• 1.2 What do you need to know about SHW ?

– Hot water accounts for around a quarter of household

energy costs and around 20 per cent of its greenhouse

gas emissions.

– Solar hot water systems use the power of the sun,

collected from solar panels mounted on the roof of a

house to heat water for use in the bathroom, laundry,

kitchen and swimming pool.

12

1. Introduction

• 1.2 What do you need to know about

Solar Hot Water ?

13

1. Introduction

• 1.3 What Solar Hot Water Systems are Compliant?

– Solar hot water systems must achieve a minimum

energy performance of 60 per cent solar gain as

measured by the Australian Standard for solar hot

water systems AS 4234-1994 "Solar water heaters -

Domestic and heat pump - Calculation of energy

consumption".

– It is worth looking at the electric and gas-boosted

solar water heaters that achieve the performance set

down in the standard.

14

1. Introduction

• 1.4 The history of Solar Powered Hot Water?

– History on the World.

• In the late 1800’s, the practice of exposing black

metal water tanks to the sun was combined with

the scientific principle of the hot box, thereby

increasing the tanks' ability to collect and retain

solar heat.

• Clarence Kemp patented this method in 1891, and

applied its principle as a means of heating water.

The result – the Climax – came to be known as the

world's first commercial solar water heater.

15