5.0+–+CONCEPT+DESIGN

5.1 Concept Ideation
**Ideation ** is the creative process of generating, developing, and communicating new ideas.Ideation contains stages of a thought cycle, from innovation, to development, to actualization. It is important part of the design process.

Single person can think and generate ideas.Which are less in number. If we use concept ideation method for genetating new concepts then we can generate more concepts. We did the concept indeation and tried to generate as much as we can. We selected following concept as a part of our system. (1) sink water (2) shawer water (3) rain water (4) snow water (1) 10 (2) 15 (3) 20 (4) 20 & Up (1) 3 (2) 4 (3) 5 (1) 8 units (2) 12 units (3) 16 units (4) 20 units (1) Hydro (2) Geothermal (3) Heat recovery (1) New Building (2) Exisiting Building (1) Storage tank (2) Direct drain water pipe line (1) Neno (2) Micro (3) Peco
 * [1] Different types of drain water**
 * [2] No. of floor's in the building**
 * [3] Average person living in one unit**
 * [4] No. of units per floor**
 * [5] Types of power generating system**
 * [6] Application of system**
 * [7] Possible systems**
 * [8] Power generating device - turbine**

Just based on this idea we can generate 4*4*3*4*3*2*2*3 = 6912 concepts

5.2 Concept Generation:
As we saw in concept ideation process we had 6912 concepts. All concepts are not fisible. Now in this stage we have to refine our concepts as per our environment and availability of resources. Out of 6912 concepts we would refined and generate 15 to 16 good fisible concepts.

5.3 Concept Evaluation:
Now we have to give ranks to these concepts to find out best 3 concepts by using weighted average method, matrix method, etc....

5.4 Concept selection:
After finished of evaluation proceess we came on conclusion of which is good concept for our project study. Our deciding factors for concepts are explain in concept ideation pahse: [1] Availability of drain water quantity + storage tank + turbine system [2] Availability of drain water quantity + drain water pipe line + turbine system [3] Availability of drain water quantity + drain water pipe line built with turbine system. For this concept we required separate electricity storage device. Becuase in this concept we put the turbine in line with drain pipe line at different level. In this system as water pass through turbine we can generate the electricity, which we need to store. This is good fisible concept for exisiting and new building system.

5.4 Concept validation:
After slecting the concepts we validate the concept by calculating the amount of water flow through the system and turbine system how much electicity we can generate. Also we have to consider the cost of system and Net return on investment for the system.

5.5 Calculation :
__1.0 Drain Water availability__ 1. Water usage per person 120 to 130 gallons per day [4] 2. Considering the maiden 125 gallons per day 3. Considering 4 people in a house hold 4. Available drain water per house hold is approximately 478 gallons, i.e. 1,912 liters

__2.0 Building selection__ 1. Assume 30 story building 2. 16 units per floor 3. Water available per floor 30,592 liters 4. For 30 story building 917'760 liters

__3.0 Calculations__ 1. One liter of water falling from 30th floor 2. 1.0 kg X 9.81 X 75 m = 735.75 Joules at the bottom of the building (H=0) assuming no loss of energy

Basic Calculation of how much electricity we can gennrate on the basis of above water.


 * Head (Feet) * Flow (gpm) * .113 = power (Watts) **

If we go with medium high flow rate which is 4350 gpm.

(1) We are going for storage tank proposal: (1) one tank at 160 ft = 78648 watts + (2) second tank at 80 ft = 39324 watts + (3) third tank at 30 ft = 14746 watts Total produced watts = 132718 watts which is equal to 132.71 kw. Above calculation is only for reference purpose. If we calculate with higher flow rate then we will get more electicity. Which is again depends on different circumsentences.

Figure Source : Toshiba Hydro Power System - __[|Toshiba Hydro ekids] [18]__

__Water storage tank capacity__ · According to the above data we need to have a storage tank capacity of at least 917 m3  · Considering about 30% allowance about 1192 m3 of tank capacity required. If we go with two tank then we have to divide this amount. · Length, width and height of the tank depends on the architecture

__Required turbine [5]__ Small turbines like · ** Micro hydro ** turbine, that is typically produce up to 100 kW of power · ** Pico hydro ** turbine, that is typically produce under 5 kW

Calculating the amount of available power __[5]__ A simple formula for approximating electric power production at a hydroelectric plant is: //P// = ρ//hrgk// <span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%; margin: 4.8pt 0in 6pt;">Where § //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">P //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;"> is Power in watts, § <span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">ρ is the density of water (~1000 kg/m3), § //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">h //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;"> is height in meters, § //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">r //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;"> is flow rate in cubic meters per second, § //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">g //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;"> is acceleration due to gravity of 9.8 m/s2, § //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;">k //<span style="color: black; font-family: 'Times New Roman',serif; font-size: 12pt; line-height: 150%;"> is a coefficient of efficiency ranging from 0 to 1. Efficiency is often higher (that is, closer to 1) with larger and more modern turbines. <span style="color: black; font-family: Arial,Helvetica,sans-serif; font-size: 12pt; line-height: 150%; margin: 4.8pt 0in 6pt;">Annual electric energy production depends on the available water supply. In some installations the water flow rate can vary by a factor of 10:1 over the course of a year.

We also considered Incentives programs to attract more people or property developer to accept this concept.The following are the reward programs suggested to be rewarded to for system installation :


 * Federal benefit
 * Provincial benefit
 * Municiple benefit
 * Banking sector loan initiative
 * Creation of green fund

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