Smart City Water Sustainability

Cooling towers cool water by evaporation. Most of this water is cooled and collected within the basin of the tower. However, some of the water is evaporated and lost out from the top of the tower. The goal of the project is to create and implement a real time data acquisition system in a cooling tower at the University of Idaho, Moscow Campus. The system consists of a variety of sensors and a master device. The sensors are collecting data on air temperature, humidity, water flow rate and water accumulation. This data will provide insight into how much water is being evaporated and lost out of the top of the tower.

=Problem Definition= In the near future, a system that will collect this evaporating water will be implemented. To validate the success of such a system, one needs to know how much water is being lost. Otherwise, it is difficult to know how efficient this water collection system is performing. It is necessary for one to know all inputs and outputs of the tower for this project to be successful.

Background
Water scarcity is becoming a serious issue. According to the UN, by 2025 1.8 billion people will be exposed to absolute water scarcity, and two thirds of the world will be living under water-stressed conditions. This makes it a top priority to conserve and save water in every application. Implementing a system that allows the user to view how much water a cooling tower is losing and how efficient they are at diminishing water loss is a crucial step towards water conservation.

Deliverables
 A system that reads data from cooling tower sensors including humidity, air temperature, and water flowrate. Web service that allows user to view data from sensors in human-readable form.  A storage solution that where the data from the sensors will permanently reside. A series of steps with full documentation that explains how one could install the same system and acquire the same results.\ 

Specifications
 All hardware that is to be installed in the cooling tower must be able to withstand a harsh environment. Sensors should report data within a .5% range of error. Sensors should report data within at least a range of once per 15 minutes.</li> Web service should allow user to download data in spreadsheet form.</li> </ul>

=Design Considerations= The overall design should be simple and easy to duplicate. It should also be easy to understand provided accurate documentation. The system should lend itself to upgrades/updates as new/better hardware is chosen to be installed. The system should also lend itself to expansion, specifically in this case, the ability to be expanded into a system that allows for automated controls or manual controls.

=Project Learning=  The creation and operation of a web service.</li> Programming an automation controller.</li> The inner workings of a cooling tower.</li> Professional relationships with clients/vendors/peer associates.</li> Formal documentation.</li>

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=Final Design= Our final design consisted of three main parts; sensors, a master device, and data storage. For our master device we chose to use the SEL AXION. This device is a real-time automation controller. The AXION reads data from the sensors at an interval of once per fifteen minutes. These data points are stored in a time-aligned CSV sheet. Once per day, this CSV file is uploaded to a university server. The end user may retrieve this data from either the server or the AXION device itself. =Validation= The AXION device is collecting data at the specified time rate and is storing these data points in a CSV sheet. =Team Members=

=Additional Documentation=

Project Schedule



Meeting Minutes

Presentations



Client Interview