I guess , there are lots of tools are available for analysis and simulation of energy ... i call it engineering of energy ... ;) ... but i thought that they always charge for this sort of sotwares and tools ... but in my previous solar energy class , our professor introduced us with new software provided by US, Department of Energy aka DOE ... the name is Energy Plus ...

EnergyPlus models heating, cooling, lighting, ventilating, and other energy flows as well as water in buildings. While originally based on the most popular features and capabilities of BLAST and DOE-2, EnergyPlus includes many innovative simulation capabilities such as time steps of less than an hour, modular systems and plant integrated with heat balance-based zone simulation, multizone air flow, thermal comfort, water use, natural ventilation, and photovoltaic systems. It is a stand-alone simulation program but it is not having any GUI , all the I/P and O/P are text based ... but they say GUI will be soon there ... ( i guess , its pretty enough for free , right ?? ) ..

To download it , you must have to register first at DOE site ... and then you can have option to choose for download, they also have this program for Linux and MAC OS ... once you register , they will send an email containing password ... which we are required to provide during installation ...

I say , if you want to try some tool for energy analysis or just want to experiece how things really work when guys design some system , what they really calculate , what are the factors that make efficent system then this software is really good ....

give it a try ...

Save the Planet ...

Last week our professor sent me a link of one web-site ... on that site they have posted speach of Barack Obama the president elect. , at Lansing , Missisippi about his vision of an american dream of energy as a part of his election campain !!!

By winning elections at Nov, '04 2008 ... democrate Barack Obama made history in the united states by becoming first black man ever as a president in history. I think he was a good candidate compared to John Mccain of republican ... Obama looks more down to earth person and he knows what people really need ... ( ow , i am not political analyist but this what i felt from his speaches ) , then his opponents ... and perhaps this is the reason why he won crown of president .... :p ...

But one thing that i liked more about him is his visions about energy ... he is more willing to increase govt. helping and resources for alternative energy production methods like solar cells or geo thermal energy ... he want to reduce dependance of USA on oil ...

He is planning to pump in about $150 billion to boost up efforts to make clean green energy ... he also want to put PHEV ( Plugin Hybrid Electic Vehicle ) on the roads on large numbers to reduce green gases ... more over large number of green collar jobs will be generated becase of these r&d and manufacturing ...

perhaps he is the first president who ever thought about making green energy as a national agenda and make country an oil independent ....

here is that site that our professor sent up to read / watch / listen ...


may the force be with us ...

DST ... its Daylight Saving Time ... we advance our clock one hour during summer and at start of fall, we change it to original one hour back position ... that is basic definition of DST.

But DST has a very brief and controversial history ... it was firstly proposed by William Willett an english builder ... but it has been said that DST has roots to romans too !!! William as a visonary , realized that most of the people sleep during sunny summer days' mornings which was waste of energy for him !!! so brought up with an idea to forward his clock an head of time !!! ( was a simple but effective solution right ?? ) ...





Since then , almost all europian countries and USA has adopted DST standards ... but it is not an easy job to implement that time ... because , they need to calculate sun rise and fall time and also need to co-ordinate with all govt. departments and lot of other stuffs ... even at time of first implementation , it was opposed politically too !!!




and Today , Nov. 02 ... at night of 2 a.m. clock is set back to 1 a.m. .... end of DST ...

i found one interesting website for getting for information about this ... they have done it with nice interface ... check it out ...


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