Sergey Syrvachev’s Post

https://lnkd.in/ghyrVgeQ K12 Sherpa, Concept Learning: CBSE Grade 8, Science. Topic: Chemical effects of Electric current, Electroplating #masteryinscience #science #mastery

Let’s have some fun with my barrel ageing model. Recently, students in my advanced thermodynamics class asked if I could incorporate exergy into the model. So, what is exergy? In brief, exergy measures how much of a system's energy is "useful" or available to do work. There is a natural tie between exergy and economics because useful energy has inherent value in terms of resources and costs. In a previous post, I demonstrated my model’s prediction of proof gallons over 12 years of whiskey aging. As evaporation occurs, we can use exergy to help assess the economic impact: as ethanol and water evaporate from the barrel, we are losing part of the whiskey's value. By taking the 115 starting proof model results for proof gallons and assigning an estimated bottle value (750 mL @ 100 proof) that grows yearly, I used an exergy analysis to calculate the economic loss of ethanol and water due to evaporation. In the accompanying chart, you will see the total projected value of whiskey per year alongside the cumulative costs of ethanol and water losses. The larger cost from ethanol loss reflects its higher exergy value, which does correlate with the fact that ethanol is a large factor in both whiskey's potency and its price. Please note, I used a rough estimation of the whiskey valuation profile here, which can be refined with a more detailed cost analysis. However, this exercise demonstrates how thermodynamics and economics intersect in meaningful ways—and my model illustrates this connection.

New Vanguard University course coming September 10th – mark your calendars learners! 🗓️ Get ready to learn how Vanguard lithium-ion batteries offer superior performance, safety, weight, and size advantages for commercial applications compared to lead acid batteries. Stay tuned for the release of this info-packed course next week. #VanguardLithium #LeadAcidBattery #Electrification #Education

Li-ion battery from chemistry to engineering: As the name is Li- ion battery but we can not use Lithium metal as electrode why? 🥴🥴 Just because of the dendrites problem (tree-like structure) which cause capacity loss. And dendrites penetrate on separator then isolate electrically anode and cathode. Then which type of materials should we prefer for electrode🤔🤔? That majorly depend on the application. But majorly we have three types of electrodes as intercalation, alloying and conversion electrodes. As we want high voltage and capacity so we choose cathode having high voltage and anode having low potential. As the separator is important for electrical separation but at high temperature its shrink so what we have to do? 🤔🤔 Just coat it with ceramic for high temperature stability. Its in our hand 👐 to design high voltage in battery 🔋 but the electrolyte limits this property why? 🤔 Just because of its stability. We have a stability window if we use the electrode having voltage above this stability window then it decomposes and create gases. A lot of basic concepts like: Why we need energy storage? Different energy storage technologies? Cell components? Setup and performance? Cell manufacturing and economics of battery storage? A lot of concepts I learn from this course. Special thank to Udmey Clone No.1 Online Learning Solution platform and to Sebastian Weiss to providing this opportunity.

🚀 Exciting Milestone Achieved! 🚀 I’m thrilled to share that I have successfully completed the HarvardX PS11.1aX course on Energy and Thermodynamics! 🎓✨ This course, offered by Harvard via EdX, has been an incredible journey into the principles governing energy systems and thermodynamic processes. The knowledge gained has deepened my understanding of how energy transformations impact our world and has equipped me with valuable insights that I’m eager to apply in my professional pursuits. A big thank you to HarvardX and the course instructors for this enriching experience. 🌟 #HarvardX #EnergyAndThermodynamics #LifelongLearning #ProfessionalDevelopment #EdX #Thermodynamics #EnergySystems

How does the chemistry behind a gas-powered car differ than that of an electric car? In Electrochemistry, learn the significance of electrochemistry and understand how electrical, chemical, and mechanical energy are linked. Enroll now: https://lnkd.in/eP_ScyQa

I'll admit something to you... In our first research project, we focused on something other than the urea dosing system but were only interested in our innovative solution, which combined the functions of an SCR catalyst (NOx reduction) and a particulate filter for use on ships and yachts. We used a typical automotive urea dosing system and have been concentrating only on coating grains' size and the substrate channels' and substrates' porosity for SCRonDPF solution. We used a nozzle that produced really small urea drops, i.e. below 30 µm, and probably for this reason, there were no significant problems with mixing. It was 2017, and we failed to convince investors or customers to use our solution. At that time, we did not optimise urea dosing regarding NH3 uniformity before the catalyst. One type of mixer was used, and any problems with obtaining the appropriate reduction were blamed on the catalytic insert itself. It sounds funny and stupid now 😊 Sometime later, Ecoexhaust started working on SCR systems for high-power engines. More conventional solutions were in demand. We started playing with optimisation and it turns out that it greatly impacts NOx reduction. Not just the urea drops, not the distance of the nozzle from the catalyst, but simply the static mixer itself and its geometry. NH3 homogeneity can be as high as 60% only or as high as 95-98% We have been achieving the latter value in our projects for several years. This allows for reducing the capacity of SCR catalysts and minimising ammonia slip, all while reducing NOx by 90%. In many cases, such uniformity can be achieved without mixer optimisation, but the mixing pipe is very long, i.e. 2.5-3.5 meters. For example, to fit the SCR system on the roof of a diesel engine container, you have to experiment with the dimensions of individual elements. Every half meter is worth its weight in gold. The situation is similar in the machinery spaces of ships. NH3 homogeneity means that at every point in the exhaust stream, we have almost the same concentration of this compound, and each catalyst channel can take the same dose. This means it uses a much larger surface area for NOx reduction. Below, see how CFD optimisation affects NH3 homogeneity. Small changes in the mixer geometry, practically invisible below, cause a several per cent increases in homogeneity and, thus NOx reduction. Figure from the left no. 1 – NH3 uniformity – 78%, 2-84%, 3-91%

WHAT IS A BREATHER? Good day and Welcome to Online Power Academy. Our Todays lectures will be about BREATHER our so called SILICAL GEL in the transformer. What is a Breather? A breather is a device that helps maintain the quality of the insulating oil inside the transformer by filtering out moisture from the air that enters and exits the transformer tank. This is crucial because moisture can degrade the insulating properties of the oil, leading to potential electrical failures.   The Silica gel inside the breather Changes color when its moisturized. BLUE TO PINK ORANGE TO GREEN Watch the Lecture below for more enlightens and if you add to your knowledge through this then ,like it , comment on it and also Share it to liberate others from the mistake of our past Power System Experience. Like use to say learning gives light and Light show the way. Lets keep learning. We see in the next class. Regard's POWERMINISTER #Prenedospowerlimited #EngineeringExcellence #ElectricalEngineering #EngineeringEnthusiast #EngineeringCommunicator #ShineOn #BrighterDaysahead #RenewableEnergy #EnergyTransition #powergeneration #poweringthefuture #powerconversion #elearning #electricalengineering #electricalengineers #electricalcontractor #COREN #NSE #brainexpansiongroup #career #training #capacityBuilding #mentorship #inspiration #empowerment #PowerSystem #Ikejaelectric #AEDC #EKEDC #IBEDC #EEDC #powerpro #powertraining #Fluke #FLUKE corporation #energysector #Fluke Reliability #Fluke Calibration #NAPTIN #PowerSector #SkillDevelopment #Nairametric

Lifep04 Battery, also known as lithium iron phosphate batteries, are becoming increasingly popular for their high performance and long lifespan. However, learning how to charge them properly is crucial to fully benefiting from these batteries. batteries have different charging requirements than other types of batteries, and neglecting these guidelines can result in reduced battery life and performance.  https://lnkd.in/dnYDNzZD

🔸NEW Aspen Tech Collaboration Series - Electrolyzer Model This is video 3 of the Aspen Technology Collaboration Series - PEM Electrolyzer Model. In this masterclass, Chemical Engineering Guy covers the fundamentals of PEM Electrolyzer. Remember that in order to model a unit operation, one needs to understand how it works!