Design and Performance Test for Green House Rainwater Recycling System

Running head: DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER
RECYCLING SYSTEM
Design and performance test for Green House Rainwater Recycling System
Name of the Student:
Name of the University:
Author’s Note:

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
SYSTEM
Acknowledgement
Constructing the dissertation was a knowledgeable experience which can only benefit me.
Therefore, I take the opportunity to thank the people without whom this research would never
have been possible leave alone being a success or failure.
First and foremost, I thank the Director of the University for providing us an opportunity to
increase our knowledge base and or providing us a platform for our careers through a wonderful
course that includes the dissertation.
I convey my gratitude to the faculty supervisor for my dissertation, Mr/Mrs. ..............for
providing immense support and guidance in spite of her extremely busy schedule.
I would also like to thank my family, for the inspiration and moral support received in
completing this work.
This project has enabled me to put my knowledge into practice and despite all the efforts and
hard work put in, some errors might have occurred. I apologise for these mistakes that might
have crept in.

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
SYSTEM
Abstract
This paper has been constructed in order to have an understanding about the rainwater harvesting
process that takes place in Zen Organic Firm in Hong Kong and the performance and the test
designs that have been used in the country to conserve water. The background of the study has
explained the harvesting process of rainwater and the demand for saving water in the country and
the company. The problem statement has been the issues that can be helpful for the researcher in
attaining the outcome that is demanded for having an understanding about the rainwater
harvesting process. The techniques and the performance of the process are assessed in
accordance to the amount of rainfall that is takes place in the country has been taken into
consideration. The cost associated to the same is even discovered. The results have been obtained
is able to explain that extent of rainwater harvesting and developments that can be made in order
to increase the amount of rainwater conservation in the country and thereby improve the lifestyle
of the individuals in the country.

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
SYSTEM
Table of Contents
Chapter 1: Introduction....................................................................................................................6
1.1 Outline of the Dissertation.....................................................................................................6
Chapter 2: Project Objective............................................................................................................8
Chapter 3: Site Survey.....................................................................................................................9
Chapter 4: Literature Review.........................................................................................................13
4.1 Rainwater harvesting...........................................................................................................13
4.2 Benefits of rainwater harvesting..........................................................................................13
4.3 Technical of water conservation through rainwater harvesting...........................................14
4.4 Rainwater Harvesting System..............................................................................................14
4.4.1 Non-Potable (Outdoor Use) RWH Systems.................................................................15
4.4.2 Non-Potable (Indoor Use) RWH Systems....................................................................15
4.4.3 Potable RWH Systems..................................................................................................16
4.5 Maintenance and operations................................................................................................16
4.6 Technical..............................................................................................................................17
4.7 Predictability........................................................................................................................18
4.8 Programmatic.......................................................................................................................18
4.9 Significance and environmental implications of rainwater harvesting................................18
4.10 Components of rainwater harvesting.................................................................................19
4.11 Summary of the Literature Review....................................................................................21
Chapter 5: Methodology................................................................................................................22
5.1 Introduction..........................................................................................................................22
5.2 Supply: How Much Rainwater Can Zen Organic Farm Collect?........................................22
5.2.1 Amount of Precipitation in the chosen area (Potential Rainwater)..............................22

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
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5.2.2 Size or Footprint of Roof (Roof Catchment Area).......................................................23
5.2.3 Proportion of Total Rainfall Can Collect (Collection Efficiency)................................23
5.2.4 Calculating Actual Annual Rainwater Collection........................................................24
5.2.5 Calculating Monthly Rainwater Collection..................................................................25
5.3 Demand (How Much Water Zen Organic farm needs, and for Which Purposes?).............25
5.3.1 Water Conservation......................................................................................................25
5.4 Storage: How Much Rainwater Zen Organic farm Need to Store?.....................................27
5.4.1 Determining Tank Size Using Water Balance Tables..................................................27
5.4.2 Calculation of Water Storage Balance Using Water Balance Table............................27
5.5 Ethical Consideration...........................................................................................................28
Chapter 6: Data Collection............................................................................................................29
Chapter 7. Data Analysis...............................................................................................................30
7.1 Introduction..........................................................................................................................30
7.2 Supply: How Much Rainwater Can Zen Organic farm Collect?.........................................30
7.2.1 Amount of Precipitation in the chosen area (Potential Rainwater)..............................30
7.2.2 Size or Footprint of Roof (Roof Catchment Area).......................................................30
7.2.3 Proportion of Total Rainfall That Can Be Collected....................................................31
7.2.4 Monthly Rainwater Collection.....................................................................................31
7.2.5 Water Balance Table.....................................................................................................31
Chapter 8. Conclusion...................................................................................................................33
8.1 Addressing the Objective.....................................................................................................33
8.2 Recommendation.................................................................................................................35
8.3 Limitation............................................................................................................................36
Chapter 9: Suggestion for Further Work.......................................................................................37
Chapter 10. Materials for the Simulation Model...........................................................................38

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
SYSTEM
Chapter 11. References and Bibliography.....................................................................................40
Chapter 12. Appendix....................................................................................................................49

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
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Chapter 1: Introduction
In the world, water constitutes of 70% of the surface of the earth and therefore is a key
substance for the ecosystem and nature of the world and water even comprises of 60% of the
body weight of an adult. Water has been grouped into surface, atmospheric and ground water
with the help of which the atmospheric water is inclusive of the moisture that is available in the
cloud that comes down as rain and snow. On the other hand rain water is looked upon as the
precipitation in which the liquid water comes down to the surface of the earth and the water from
the rain and snow is the primary source of the drinking water throughout the world. The reason
has been due to the fact that the water that is available in the surface is salt water and therefore
this cannot be used for the purpose of consumption (Morey et al. 2016). The groundwater that is
available beneath the surface of the earth is received from the precipitation only. Water is useful
for the development of the global economy and therefore various plans and policies are
constructed by the international and national bodies with the help of which water can be
regulated and sustainable use of water can be undertaken.
Harvesting is a process with the help of which water is restored and preserved and
thereby clean and purified water can be used for prospective purposes. Rainwater harvesting has
been utilised in the overall history as a as a measure for water conservation specifically in the
locations where the other resources of water are difficult and scarce to access (Ling and Benham
2014). In the current years the policy makers and the researchers have even generated their
interest in the strategies related to the water use due to the rise in the demand for water and rise
in the interest in the conservation of energy and water and a rise in the regulatory importance on
mitigating the runoff volumes of storm water and the related pollutant load.
In the past few years as interest towards the practice has increased there have been
several countries and regional agencies that have implemented or have rectified the codes and the
guidelines to motivate the practices that is associated to rain water harvesting. Furthermore, the
researchers from several universities and the non-governmental companies along with the
industry advisers have published the articles and papers that addresses the wider range of the
topics associated to the maintenance, installation and the performance of the use systems and
performance (Matos et al. 2015). This has motivated the employees to undertake the strategies
and the policies that would be used for the purpose of rainwater harvesting and the designs and
the performances use for the purpose of collection of the data.
1.1 Outline of the Dissertation
The outline of the dissertation addresses the structure that would be maintained and the
aspects that would be covered in order to complete the thesis in a precise manner. The
introduction section of the thesis provides a brief explanation about the importance of water and
how conservation of rainwater plays an essential role in reducing the water crisis all over the
globe especially in Hong Kong. The rise in the interest towards rainwater harvesting and the

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DESIGN AND PERFORMANCE TEST FOR GREENHOUSE RAINWATER RECYCLING
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performance test for greenhouse rainwater harvesting recycling process is even addressed which
has encouraged the researcher to initiate a research on this topic.
The next section of the paper looks to address the objective of the project. The objective
of the project are the aspects that have been taken into consideration by the researcher in order to
take the research ahead and discover the precise result that associates with this topic.
The next segment of the thesis is survey of the site and therefore a brief idea about the
location of Zen Organic farm have been addressed and the overall square kilometre that the farm
withholds is even explained so that an idea can be attained as to the rainwater harvesting process
of Zen Organic Farm can be known.
The review of literature addresses the various aspects that are associated to rainwater
harvesting in order to have an idea about what rainwater harvesting is and the benefits of
rainwater harvesting. The process of rainwater harvesting and the technicalities that are related to
it is even addressed. The maintenance and the operations of rainwater harvesting is explained
and accordingly the predictability, programs associated with it is even addressed. The importance
and the environmental effects of rainwater harvesting is even highlighted and the components is
even explained in order to have an idea about how the rainwater harvesting is undertaken and all
these aspects have been explained in accordance to how the other researchers recommended
about these issues.
The methodology section addresses the process of data collection that is related to
rainwater harvesting system. The collection efficiency of the company in accordance to Zen
Organic Farm has been explained. The annual rainwater collection along with the monthly
collection is even explained and the process that is used in order to collect the data is even
highlighted in this section of the paper. The storage capacity of the farm and the calculation of
the water storage balance is shown in this section. The process of data collection is shown in the
next section of the paper and thereafter the data that has been collected is gone through the
process of analysis which leads to the results that is explained in the conclusion section. The
scope of future work in relation to this topic is even explained in this paper so that an effective
research thesis can be constructed.