Posts filed under ‘Bilkent University, Ankara, Turkey’

Project Updates 2: Solar Panel Developments

from Bilkent University | Ankara, Turkey

by Chee Yong Tan

In our last update, we told you that to examine the effectiveness of using solar panels at Bilkent University campus, we constructed a solar panel demonstrator. However, the first place which we constructed the panel was not convenient for data storage, because there was not any place for the computers and other equipments. In order to collect and store the data gotten from the solar power demonstrator, some place which could be appropriate for data transfer to computers should be chosen. Therefore, the construction of the solar panel demonstrator was revised according to solve this issue. It was decided that constructing the solar panel near the EE (Electronics Engineering) Building. The cables were connected between the solar panel demonstrator to the multimeter at the laboratory. The window of the building was used for passing the cables into the laboratory.

Figure-1: The Installation of the Solar Panel near the EE building

Then the cables from the solar power demonstrator were connected to the multimeter UT60E. This multimeter has a property which can transfer the data from the multimeter to the computer. After we learned that this multimeter has such a property, we revised our components and changed our multimeter and started to use UT60E. In brief, the place of the construction was revised and the components which provide data transfer was revised.

Before the storage mechanism worked properly, each day we went to laboratory and took the voltage and current data of the solar panel demonstrator.

After that, we developed the data storage procedure. The data is started to stored with the help of the multimeter UT60E. We are using two UT60E, one is for the voltage storage, the other is for the current storage.

In order to record data on computer, we connected multimeter UT60E to computer through RS232, and make adjustments of port according to UT60E datasheet. Interface saves data in an excel format as an excel file. These files have the voltage and current data for every 1 hour. Putting all data for each hour in this report can be a little confusing. Therefore, we think that making graphs for the data at 12 pm and 3 pm is much clear.

In brief, we worked on our solar panel demonstrator up to this point. We changed the place of the solar panel because we needed storing the data gotten from the solar panel demonstrator to computers. We use the multimeters UT60E, which has the property that can transfer the data from the multimeter to the computer. By this way, we have the storage of voltage and current values for each hour.

July 8, 2010 at 1:32 am 1 comment

Project Update: Solar Panel Demonstrator Installed

from Bilkent University | Ankara, Turkey

by Ozge Topuz

The solar statistics of Ankara can give an idea about the efficieny of solar panel installation at Bilkent University. However, in order to get exact results, we decided to install a solar panel demonstrator at Bilkent University and get real data.  We installed our solar panel demonstrator and have included the preliminary measurements.

Ozge with Ergun Hirlakoglu, the laboratory technician.

The measurements on March 22nd, 2010, at around 3 p.m. are as follows:
In sunny places
  • Voltage: V=20.41 V
  • Current: I=3.35 A
  • Power: P=V x I=20.41×3.35=68.37 W
  • Energy: E=68.37 Wp
In shadowy places
  • Voltage: V=13.01 V
  • Current: I=0.50 A
  • Power: P=V x I=13.01×0.50=6.53 W
  • Energy: E=6.53 Wp
We will keep taking data from our solar panel demonstrator at different time durations in a day, in different weather situations.
We are hoping to work with our demonstrator to develop a system which can keep track of the data collected. Our plan is to collect
  1. Monthly energy demand of Bilkent University
  2. Monthly energy generation from the proposed PV System
  3. Daily Weather Variation Examples of Demand and Energy Generation Results (Example during cloudy day, during partly-cloudy day and during sunny day)
  4. Current PV Tariff Bills and Laws (Cost estimate for tariff)
  5. Cost Estimate For Alternative Solutions( Calculate annual cashflow using cashflow analysis, system payback period: Calculate the present value of operations and maintenance cost throughout the lifetime, calculate the system revenue)
  6. Cost Estimate For Recommended Solution (Final Recommendation)

NOTE: Calculations can be done with numerical methods by using SOLVER in a spreadsheet program such as Microsoft Excel. 

March 23, 2010 at 4:01 am 1 comment

Project Highlights: Combating Climate Change

from Bilkent University | Ankara, Turkey

The team plans to use Bilkent University Campus as a sample university to research and develop a plan for green university solutions, specifically focusing on solar energy, green transportation and insulation of buildings. With plans of conducting supplier research, demonstrations on solar energy, calculating energy optimization and considering feasibility, acceptability and economic effects—the team hopes to find alternative energy sources and energy saving methods in

specific areas to recommend to the institution. Another measurable result that the team plans to deliver is a report on the effectiveness of their solar panel prototype, detailing the cash flow and amount of electricity produced.


February 4, 2010 at 8:43 am Leave a comment

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