Tag Archives: thermodynamics
Air Conditioning Process to cut from 50% to 90% Energy Consumption
Source: Nrel.gov A process has been developed of air condition that reduces energy uses by 50 to 90%.The process was announced by the US National Renewable energy and its called DEVAP which stands for Dessicant-Enhanced eVaporative air Conditioner)/ It cools air using evaporative cooling( not new) but combine a dessicant liquid for pulling water vapor [...]
Full StoryRefrigeration Cycle Analysis
Abstract Refrigeration technologies have enabled great advances to the modern society. Contrary to what one might think the first civilizations that used some sort of technique to refrigerate a room go back to prehistoric times. On these ancient times ice was stored and packed with hay and other types of insulating materials in order to [...]
Full StoryHeat Exchanger Analysis
Abstract This experiment consists on taking measurements from a heat exchanger while varying the direction of the flow of the hot and cold fluids. Heat exchangers makes possible the use of machinery and processes that otherwise would generate too much heat to operate. The goals for this laboratory include determining the amount of heat dissipated [...]
Full StoryCooling Tower Analysis
Remarks As part of thermal lab some friends and I made an analysis of the cooling towers at the university used for air conditioning. This project was made by mechanical engineers: José M. Otaño, José R. Vázquez, Luis A. Plaza, Hiram González and me (Irvin De La Paz). Abstract A cooling tower is a series [...]
Full StoryMathCad: Hardy Cross
When sen. Stevens told *Internet is a series of tubes* he was wrong, but also maybe he was thinking of Mr. Hardy Cross. Hardy Cross was a structural engineer who devised a way (in the 1900s) to calculate flow rate of a pipe network when some pipe flows are known. I am sharing the technique with a mathcad subroutine and an example. Interesting technical stuff
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A mechanical engineer trying to make a difference while learning, experimenting and applying different technologies. If you would like to contribute to this blog you can contact him at irvin de la paz @ upr. edu.
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