Solar Water Heating System
Interim Report
Chapter 1: Introduction of the project
1.1: Project Tittle
1.2: Project General Purpose
1.3: Introduction of the project
1.4: Aims and Objective of the project
1.5: Description of the project
1.6: Advantages and Disadvantages of the project
1.7: Methodology of the project
Chapter 2: The Information and Literature Review
2.1: Background information and existing project
2.2: Components used in the project
(a) Flat-plate collector
(b) Integral collector-storage system (ICS)
(c) Evacuated-tube solar collectors
2.3: Flow charts for the object operation
2.4: Texting
Chapter 3: The Project Plan of Action
3.1: Timetable for Plan
3.2: Work Completion of Date
Chapter 4: Reference and Source of Information

Chapter 1
1.1: Project Tittle
Solar water heating system is changed of sunlight radiation to heat towards natural resource for water heating system using a solar thermal collector. Solar water heating systems are two types of systems. It is a close-coupled system and an open-coupled system. The project Tittle is a close-coupled water heating system (WHZ).

1.2: Project General Purpose
The storage tank is horizontally combined above the solar collectors on the roofs in a close-coupled water heating system (WHZ). A close-coupled water heating system (WHZ) is no need pumping, it is only required the hot water naturally rises into the tank through thermosiphon flow.

1.3: Introduction of the project
Solar water heat used back over 2500. Solar water heater was so popular in the Roman world that disputes over sun rights arose. (Dr.Ben Gravely).
Solar water heat systems are also called Thermonsiphon solar domestic hot water (DHW) system. Thermonsiphon solar domestic hot water systems are widely used in China, Australia, Israel, Japan, the United State (US) and elsewhere. The most popularity countries are China, Japan and the United States (US). The collector fluid in a thermosiphon system is circulated by natural convection, eliminating the need for the pump and controller of an active. The location of the storage tank above the collector is the main point to the operation of a thermosiphon system.
By piping the outlet of the collector to the top of the storage tank, and the bottom of the storage tank to the collector inlet, an opened loop system is formed. During the daylight, the collector fluid is heated and becomes warmer and less dense than the fluid in the storage tank. In a direct natural circulation system, water will flow through the collector rises and connecting piping into the storage tank. The flow rate in a natural circulation thermosiphon system varies throughout the day and year, depending on the absorbed radiation, fluid temperature, system geometry, and other factors.
Thermosiphon systems may be decided as self-adjusting with increasing solar radiation leading to increasing flow rates through the collector. A check valve may be included in the connecting piping to prevent reverse flow at night, when the water in the collector is at a lower temperature than the water in storage. G Solar heating was so popular in the Roman world that disputes over sun rights arose. Hot water may be drawn from the top of the tank to load, while colder water remains water replenishes the bottom of the storage tank.

1.4: Aims and Objective
The main aims of the project is using with solar energy to provide hot water. It is protect for freeze water. Water heater and construct can get materials in local areas to make. It is need for heating swimming pools, heater and the other process. It is use to domestic thermosiphon solar water heater beneficially and systematically. It is compare with the gas and electricity water heaters; it is benefits economic for 30 years period in the United State (UK).

1.5: Description of the project
Firstly, thermosiphon solar water is chosen to design and construct. The various flat-plate collectors are designed and calculate for required data. And then, it is constructed by using material for pipes line and absorber plate. Cork materials are used for insulation from heat convention. The temperature of water leaving from solar water heater is measured every specified times and compared theoretical calculated results. The performance of thermosiphon solar water is analyzed.

1.6: Advantages of the project
(a) Solar energy get free and renewable source of energy.
(b) Solar water heating system help reduce on fossil fuels.
(c) Solar water heating systems are highly cost effective with high insolation values in sunny and warm places.
(d) Many countries offer favorable incentives for the installation of solar water heating systems around the world.
(e) In average between 5-10 years, it is relatively good payback period.
(f) It can costs low maintenance.
(g) Solar water heating heater can build us.

Disadvantages of the project
(a) It is relatively high upfront costs.
(b) During the winter period, it will require electrical or gas or other fuel in most area.
(c) Solar water heating systems are passive of relatively low efficiency.
(d) They require excellent overheating and freeze protection. ( Ned Haluzan in 2003)

Chapter 2
2.1: Background Information and existing project

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