A thermoelectric generator produces electricity using the Seebeck effect by exploiting temperature differences between two substances. Heat flows through thermoelectric plates, converting to electricity. The document proposes using exothermic and endothermic chemical reactions involving calcium oxide, sodium acetate, ammonium nitrate, and barium hydroxide to create temperature differences to power a small model car through a thermoelectric generator. Safety procedures and controls for variables are described.
Andrea maria camacho romero - preparation of nb3 gaal superconductorsthinfilmsworkshop
A15 compounds Nb3Ga, Nb3Al and Nb-Al-Ga have been synthesized on niobium samples by means of induction heating. For the preparation before of treatment, the niobium samples were treated with BCP solution in order to polish the surface. Subsequent, the samples were annealing using an inductor and setup the voltage, time, sample position, temperature, type and pressure of gas used. The inductive measurements indicate that the highest critical temperature was 18 K with DTc 0.35 K, in Nb-Al-Ga#1 sample. Mapping analysis showed the uniform diffusion of aluminium into the niobium. On the contrary, the gallium diffuses creating channels into niobium. The chemical composition was measured by EDS obtaining 82% wt. Niobium, 11.3%wt., Gallium, 4.7% wt., Aluminium and 1.9% wt. Oxygen. Finally, the results indicate that the new technique is feasible for synthesis of A15 superconductor without using a vacuum system.
Phase Behaviour and EoS Modelling of the Carbon Dioxide-Hydrogen System, Martin Trusler, Imperial College London. Presented at CO2 Properties and EoS for Pipeline Engineering, 11th November 2014
Here, You will get know about the connection of chemistry and chemical engineering. It is first part of the Unit Process series. In this part I am covering Unit Process like Combustion, Oxidation, Causticization, Nitration and Isomerization.
Andrea maria camacho romero - preparation of nb3 gaal superconductorsthinfilmsworkshop
A15 compounds Nb3Ga, Nb3Al and Nb-Al-Ga have been synthesized on niobium samples by means of induction heating. For the preparation before of treatment, the niobium samples were treated with BCP solution in order to polish the surface. Subsequent, the samples were annealing using an inductor and setup the voltage, time, sample position, temperature, type and pressure of gas used. The inductive measurements indicate that the highest critical temperature was 18 K with DTc 0.35 K, in Nb-Al-Ga#1 sample. Mapping analysis showed the uniform diffusion of aluminium into the niobium. On the contrary, the gallium diffuses creating channels into niobium. The chemical composition was measured by EDS obtaining 82% wt. Niobium, 11.3%wt., Gallium, 4.7% wt., Aluminium and 1.9% wt. Oxygen. Finally, the results indicate that the new technique is feasible for synthesis of A15 superconductor without using a vacuum system.
Phase Behaviour and EoS Modelling of the Carbon Dioxide-Hydrogen System, Martin Trusler, Imperial College London. Presented at CO2 Properties and EoS for Pipeline Engineering, 11th November 2014
Here, You will get know about the connection of chemistry and chemical engineering. It is first part of the Unit Process series. In this part I am covering Unit Process like Combustion, Oxidation, Causticization, Nitration and Isomerization.
To design a project that could be used to utilize the waste heat energy into electricity for multipurpose use in various applications and household purposes. This system should be economical, easy to implement and does not produce any kind of pollution, it is silent and does not require any kind of fuel to work. The main feature of this project is that it converts direct temperature difference into electricity. It is based upon thermoelectric energy generation concept and has many applications in electricity generation from automobile waste heat, heat liberated from household items, electricity generation from glaciers (ice) and a lot of similar applications where temperature difference from environment is converted into electricity. This concept is very useful in terms that it adds up to other renewable sources of energy and can be used in place of other non-conventional sources of energy like wind, solar, tides, geothermal heat, etc. This is a new concept for electricity generation using temperature difference between junctions of a peltier element to be used in our project. The complete Thermo Electric Generator would be based on Seebeck Effect that is reverse of peltier effect. The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice-versa
Electricity Generation using Thermoelectric System from Waste Heat of Flue Gasesijsrd.com
Energy related cost have become a significant fraction of cost in any industry. The three top operating expenses are often to be found in any industry like energy (both electrical and thermal), labour and materials. If we were found the manageability of the above equipment's the energy emerges a top ranker. So energy is best field in any industry for the reduction of cost and increasing the saving opportunity. Thermoelectric methods imposed on the application of the thermoelectric generators and the possibility application of Thermoelectrity can contribute as a "Green Technology" in particular in the industry for the recovery of waste heat. Finally the main attention is too focused on selecting the thermoelectric system and representing the analytical and theoretical calculation to represent the Thermoelectric System.
- Process effects of pre-reforming
- Process benefits of pre-reforming
- Effect of Pre-reformer Inlet Temp on Primary Reformer Efficiency
- Services for Pre-reforming
Pre-Reforming Problems
- Features: Impact of Sulfur
- High Temperature Operation
- Catalyst Deactivation
- Which is Better - High or Low Inlet Temperatures ?
- Pre Reformer Loading
- Pre-Reformer Installation
- Pre-reformer Startup
- Catalyst Drying
- Catalyst Heating
- Reduction
Lecture materials for the Introductory Chemistry course for Forensic Scientists, University of Lincoln, UK. See http://forensicchemistry.lincoln.ac.uk/ for more details.
Hello friends this is the notes of the chapter chemical reactions and equations .
I hope this will help you in your examinations
Stay safe, Stay home, Stay connected
Existing technologies and industries can be combined to achieve an environmental trifecta: 1) mitigating climate change by sequestering (locking up) CO2, 2) eliminating brine disposal from brine desalination operations, and 3) preventing the salinization and acidification of groundwater and surface waters resulting from road salting, acid precipitation, and acid mine drainage.
The “Carbon Negative Water Solutions environmental trifecta” has three main components detailed as follows:
1) The sequestration of carbon from flue stack capture (FSC), or direct air capture (DAC), of CO2, subsequently incorporated into solid carbonate mineral [MCO3 or MHCO3], or into increased naturally dissolved bicarbonate (HCO3) in groundwater, surface water, and oceans. Dissolved HCO3 can be incorporated into algae for biofuel, fertilizer, or feedstock production.
2) Elimination of brine disposal from both seawater and groundwater brine desalination operations. The most common technology for this step usually involves 1) the electrolysis of brine, producing a base MOH, and 2) the aeration of CO2 gas forming carbonic acid, which reacts with the base to produce a carbonate salt [MCO3 or MHCO3]. Various HxClx marketable byproducts are produced, including H2, Cl2, HCl, and ClOx. The H2 can supplement the hydrogen economy.
3) Prevention of the salinization and acidification of groundwater and surface waters resulting from road salting, acid precipitation, and acid mine drainage. MHCO3 replacing MCl in road salting operations provides non-point source application of bicarbonate for the neutralization of acid precipitation. The elimination of MCl salts prevents the chloride salinization of groundwater and surface waters. MHCO3 can also be applied locally, providing point source application for the neutralization of acid mine drainage point sources.
Similar to Thermoelectric Generator Presentation (20)
2. Overview
◦ A thermoelectric generator produces
electricity using the Seebeck effect. It takes
advantage of the heat flow due to a
temperature difference between two
substances.
◦ The heat flows through a thermoelectric
plate and is converted into electricity.
5. Calcium Oxide Reaction
CaO(s) + H20(l) → Ca(OH)2(aq)
◦ Upon Hydration, an exothermic reaction
occurs and the solid puffs up
◦ Ratio: 1 L Water to 3.1 kg CaO → + 3.54 MJ
◦ Temperature max: 100 oC
◦ Able to keep temperature at 100 oC through slaking time
providing constant Heat
◦ Variables
-Time required to convert all CaO to Ca(OH)2 (slaking time)
-water to calcium oxide ratio
-initial temperature of water
6. CH3COO- (aq) + Na+ (aq) + 3H2O(l) → CH3COONa • 3H2O (s)
◦ Boil and stir solution of sodium acetate
trihydrate in water until all
crystals dissolve and then
cool the solution
◦ Drop a small crystal of
CH3COONa • 3H2O to
initiate nucleation
◦ Reaction goes to ~54oC
Crystallization of CH3COONa 3H2O
11. ◦ Control Variables: Amount of chemical (moles or grams)
◦ Recorded Variables:
▫ Plateau temperatures of the reactions (⁰C)
▫ Time it takes to reach plateau temperature (second)
▫ Time it stays at plateau temperature (second)
TESTING STAGE Procedure
12. SAFETY OPERATION Procedure
◦ All chemicals are injected into the reactor vessels with
syringes at the start of the line.
◦ In case of an emergency, our car can be shut off by an
on/off button, which cuts off the electricity of the entire car
system.
◦ Chemicals are disposed properly based on their chemical
properties and laboratory requirements.
Goal=experiment two rxns and see the best combo
What we will be doing is testing 4 exothermic and endothermic reactions in total
isaac & alexis
Explain water
Potential test variables: effect of saturation on heat evolved, effect of saturation on time of heating and cooling during the car’s run, effect of starting temperature on final temperature, effect of starting temperature on heat evolved
Victor & Corey
Helen & Gabri
Jason
Anujin
melissa
Richard
<http://blink.ucsd.edu/safety/research-lab/hazardous-waste/sewer.html>
neurtalize calcium hydroxide and ammonium products
Barium Chloride residues: Dissolve in water (not to exceed 1L total volume) and add excess 3M H2SO4. After
standing overnight, filter insoluble BaSO4, dry, mix with equal amount of sand and package for transfer to
landfill. Neutralize the filtrate with NaOH and discard into the drain with excess running water.
Cao powder in the container and inject water