Evaporative coolers are very useful in dry and hot climate. Pour a lot of water and run the fan, and get the cool moist breeze. It is a simple device and it is good for what it provides – fresh cool air. For a long time I have been thinking how to compare the evaporativeContinue reading “Evaporative Cooler and Tonnage”
Tag Archives: energy storage
Compressed Air Energy Storage, Entropy and Efficiency
The basic operating principle behind Compressed Air Energy Storage (CAES) is extremely simple. Energy is supplied to compress air, and when energy is required this compressed air is allowed to expand through some expansion turbines. But, as and when we approach this simple theory, it starts becoming more complex because of the thermodynamics involved. AirContinue reading “Compressed Air Energy Storage, Entropy and Efficiency”
Lead Acid is the cheapest battery: *Conditions Apply
Lead Acid battery is touted as the cheapest battery available. In fact, Lead Acid is the family name for a collection of closely related battery types, from simple vented/flooded to advaned Valve Regulated ones. Depending upon the type of usage, there are shallow and deep cycle batteries. Typical examples of shallow cycle batteries are theContinue reading “Lead Acid is the cheapest battery: *Conditions Apply”
Analysing Specific Capacity and Energy Density of some popular batteries
In my last article, I was concentrating more about the Specific Capacity of different cathode materials. But this is only one part of the story when a complete cell is concerned. To find the Specific Capacity of a particular battery chemistry the whole chemical reaction has to be analyzed. Essentially the method used here isContinue reading “Analysing Specific Capacity and Energy Density of some popular batteries”
Specific Capacity of Cathode Materials
Recently I read some news about Lithium Ion batteries and the author mentioned that Lithium has the highest Specific Capacity of 3861mAh/g. I was very curious to know where this magic number came from. After trying to understand more about that, finally I found the answer. That was 12th class electrochemistry. The calculation is givenContinue reading “Specific Capacity of Cathode Materials”
Can we avoid Energy Storage
There have been a lot of focus about energy storage these days coupled along with solar and wind. As a coin has two sides, Energy Storage has both pros and cons. Some of the main concerns I could gather are: Prohibitively Expensive Capital Cost: Energy Storage systems are expensive to own. Cheapest solutions like LeadContinue reading “Can we avoid Energy Storage”
Saurorja 