DSSC,Aeration system in closed chambers IDM11
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The document details a project on dye-sensitized solar cells (DSSCs) and their application in generating electricity to operate fans in bus waiting areas, providing relief from heat. It outlines experiments on photosynthesis using plant disks, paper chromatography to separate pigments, and the construction of a functioning DSSC. The findings suggest that the type of pigment impacts the solar cell’s voltage output and its potential use in real-world applications such as powering systems in public transportation settings.
DSSC,Aeration system in closed chambers IDM11
- 1. AL-BAIRAQ I AM DISCOVERING MATERIALS DYE-SENSITIZED SOLAR CELL ( DSSC ) Done by : Abdulrhman alyafei Rashid almuftah fahad alkhater Adel elkattan
- 2. INVESTIGATINGPHOTOSYNTHESIS OF PLANT DISKS. SEPARATING LEAFPIGMENT USING PAPER CHROMATOGRAPHY. MEASURING A SOLAR CELL’SPERFORMANCE. MAKING A DYE-SENSITIZEDSOLAR CELL. USINGDSSC AS AN ENERGYSOURCE TO TURN ON THE FANS IN THE BUSSTATIONS TO COOL THE CHAMBER
- 3. -is a low-cost solar cell belonging to the group of thin film solar cells , it is based on a semiconductor formed between a photo-sensitized -photosynthesis is the process by which plants absorb energy from sunlight and use it to convert carbon dioxide and water to glucose and oxygen.
- 4. Objective : to observe the photosynthesis in plant disks that were put in different lights (white and indigo). step 1 : we obtained 200ml solution of sodium bicarbonate in 2 beakers (200ml each). Step 2 : we Cut 24 leaf disks Step 3 :we Put the leaf disks with the sodium bicarbonate solution in a syringe to infiltrate. Step 4 :we placed the disks in the beakers. Step 5 :we put a light source on the beakers and started the stopwatch Step 6 : we waited 20 mins to see the result of how many leaf disks are floating. Procedure:
- 5. indigo filterWhite lightTime (min) 035 0810 01215 01220
- 6. Step 1: we cut a strip of chromatography paper to a size of 19cm by 1.8cm then we drew a base line 3cm from the bottom then we clipped the corners off. Step 2: we placed a green leaf on the base line and rolled a coin horizontally to allow pigments to move from the leaf to the paper Step 3: we placed the test tube in a 250ml flask then added approximately 2cm of solvent to the bottom . Step 4: we took the piece of paper to the inside of the stopper and gently lowered the paper into the test tube containing the solvent . The solvent began to move up the paper along with the pigments. Step 5: when the solvent line is about 1 cm from the top of the paper , we removed the paper and marked the farthest point of the solvents progress. Procedure: Objective:
- 7. We learned that polarity differs how high a pigment goes on the chromatography paper , in our activity we used petroleum ether (polar) so the non polar pigments travelled higher (Chlorophyll A ) and the pigments with lower polarity stayed at the bottom (Chlorophyll B) Result: Chlorophyll (A) travelled high in the chromatography paper while Chlorophyll(B) stayed low , and that is because of the polarity.
- 8. placed the solar cell under a light source connected the ammeter part of the multimeter to the electrodes of the solar cell. connected two input ends of the voltmeter to the electrodes of the solar cell. Explore the electrical properties of the silicon solar cells that are readily available in the market .
- 9. Brightness rank Resistance ( Ω ) Current( I ) Voltage( V ) Bulbno. 34.2 Ω0.31.251 29 Ω0.252.252 113 Ω0.11.33 V R I
- 10. Tomakeafullyfunctioningdyesensitizedsolarcellandmeasureitsvoltage. we obtained 2 glass slid and a multimeter. we obtained carbon by candle smug. we kept the other material on a glass slide then we put the slide on the high Temperature at 45c we put themon means Of dye solution. we clamped two binder clips to where the slides overlap to hold the cell together.
- 11. Pigments Volt (V) Plant leaves dye 0.39 V We learned that Dye-Sensitized Solar Cells ( DSSC ) can be used to generate electricity . The amount of electricity depends on the type of pigment and its ability of light absorption.
- 12. AT BUS STATIONS, WE HAVE NOTICED THAT WAITING CHAMBERS ARE IN OPEN AIR AND THIS MAKES THE WAITING PEOPLE SUFFER FROM HIGH TEMPERATURE ESPECIALLY DURING SUMMER SO WE THOUGHT THAT WE CAN USE THE DSSC FOR STARTING AN AIR FLOW SYSTEM IN CLOSED CHAMBERS. THE DSSC WOULD BE USED TO START A FAN WITH COOLING SYSTEM TO BLOW AIR INTO THE BUS WAITING CHAMBERS ,THEN THE COLD AIR SUCKED BY EXHAUST FAN AND PASSED TO FILTER THE AIR THEN RETURNED TO THE COOLING CHAMBER FOR FURTHER COOLING ALSO WE PUT SOME DYE-SENSITIZED SOLAR CELLS ON TOP OF THE BUSES TO PRODUCE ELECTRICITY WHILE MOVING IN THE SUN , TO POWER THE SCREENS AND THE LIGHTS OF