A new power-generating system that works like a jet engine

For a few hours on April 12, engineers at Sandia National Laboratories in New Mexico were able to send electrons back to the Sandia-Kirtland Air Force Base electrical grid using a new type of power generation system. This little proof-of-concept, announced earlier this month, showed the team that their system—with which they’ve been tinkering with since 2007—was stable, controllable and able to sync well with the electrical grid.

The new system, which the team sees as more efficient than existing power-generating systems, is based on a described thermodynamics process via a closed-loop Breton cycle, and works similarly to a jet engine. Most jet engines are powered by an open Breton wheel. Ambient air is brought in and compressed. Then, it is heated with fuel and expanded by means of a turbine. That turbine can then mechanically operate a generator to generate electricity (if you’re grounded), or thrust (if you’re on a plane)“In years past, we just made electricity, and put it into resistive load banks. It’s like a giant toaster oven, it turns electricity into heat,” said mechanical engineer at Sandia National Laboratories who worked on the project Darrin Fleming says. “Being able to put electricity back on the grid was the main result of this program.”

So what engine operation do the Breton cycles describe? “Imagine you take a pipe and you connect [gas] The turbine discharges back with the compressor, and you just keep the working fluid in a loop. It is a closed Breton cycle,” says Sandia mechanical engineer Logan Rapp, who was part of the test. “It has the same compressor, turbine, and heat exchange, but the working fluid is always inside the pipe.”

BY- BUSINESS NEWS 

BLOG BY- TANISHQ DESHMUKH

21 August 2022

Important vaccines given to Bady

      Important vaccines given to Bady 

1)What is Vaccines? 

Vaccines protect your child against serious illnesses like polio, which can cause paralysis; measles, which can cause brain swelling and blindness; and tetanus, which can cause painful muscle contractions and difficulty eating and breathing, especially in newborns.

1) What are the important vaccines for babies?

The 10 Most Important Vaccinations For Children In India

1) BCG Vaccine. ...

2)  Hepatitis B Vaccine. ...

3) Oral Polio Vaccine (OPV) ...

4) Pentavalent Vaccine. ...

5) Rotavirus Vaccine (RVV) ...

6)Measles-Rubella Vaccine (MR) ...

7) Japanese Encephalitis Vaccine (JE) ...

8) Vitamin A Vaccine.

2) What is the most important vaccine for babies?

1) All three hepatitis B vaccinations.

2) Diphtheria, tetanus, and pertussis (DTaP) vaccine.

3) Haemophilus influenzae type b vaccine (Hib)

4) Pneumococcal conjugate vaccine (PCV)

5) Inactivated poliovirus vaccine (IPV)

Important vaccine and Q and A

By- Tanishq Deshmukh

20 August 2022

Rani Lakshmibai Bai

                 Rani Lakshmibai Bai 

           Rani Lakshmi bai on born 19 November 1828 in on Varanasi city in Uttar Pradesh. Rani Lakashmibai real name was Manikarnika Tambe. Her father name was Maropant Tambe & her mother name was Bhagirathi Tambe. 

           In 1842 May, Manikarnika got married in early age. Few years after marriage, in 1851, Manikarnika gave birth to a boy but he couldn't survive and died after four months.

           Her's husband name was Maharaj Gangadhar Rao newalkar he was born in 1814. He was the 5th raja of Jhansi situated in northern India, a vassal of Maratha Empire. He was a Marathi Karhade Brahmin. He was the son of Shiv Rao Bhau and a descendant of Raghunath Hari Newalkar. Raja Gangadar rao newalkar Died on 21 November 1853 at the age of 39.

            Rani lakmshmibai adopted a son Damodar rao . His real name was Anand rao and he was born on 15 November 1849 and Died on 28 May 1906.At the age 56 in Indore state ,  Madhya Pradesh.

            Later Rani Lakshmibai Bai became  the Rani of Jhansi. Maharani consort of the Maratha princely state of Jhansi from 1843 to 1853 as the wife of Maharaja Gangadhar Rao. She was one of the leading figures of the Indian Rebellion of 1857 and became a symbol of resistance to the British Raj for Indian nationalists. 

She Died on 18 June 1858 . In the fort of Gwalior . Due to the war of Jhansi. 

1) Who won the war of Jhansi? 

Lakshmibai, along with her son Damodar Rao, escaped from Jhansi one night and reached Kalpi where she joined forces with Tatya Tope. Here, they occupied the town and prepared to defend it. The British attacked Kalpi on May 22nd 1858 and Lakshmibai and Tatya Tope were defeated.

2) What happened after Jhansi war?

The British seized the state jewels of Jhansi and, in 1854, gave Lakshmibai a pension of  60,000 and ordered her to leave her palace and the fort. She moved into a place called Rani Mahal, which has now been converted into a museum.

3) Why did Gangadhar Rao adopt son?

The adoption was in the presence of the British political officer who was given a letter from the Raja requesting that the child should be treated with kindness and that the government of Jhansi should be given to his widow for her lifetime.

4) What happened in Jhansi 1857?

She was the focal point around which resistance gathered in the region during the Revolt of 1857, described as the First War of Independence in India. The Jhansi fort was her battleground and a magnet for people who were eager to reclaim their freedom from the notorious British.

Some photo of Gwalior Fort

Night view

Afternoon view

Statue of Rani lakmshmibai in solapur

The place from Rani lakmshmibai jump from the fort with horse and her Baby

Real photo of Jhansi fort 

Location

Photo of Jhansi fort from inside

History of Rani Lakshmi bai with important Q and A with High quality photo. 

By -Tanishq Deshmukh

16 August 2022

SUBHAS CHANDRA BOSE

              Subhas Chandra Bose 

Subhas Chandra Bose (23 January 1897 - unknown) also known as Netaji, was one of the most prominent Indian nationalist leaders who attempted to liberate India from British rule during the waning years of World War 2 

Netaji left the Indian National Congress in 1939 following differences with its conservative leadership. Later he was placed under house arrest by the British but escaped from India in early 1941.He turned to Germany and Japan for help in gaining India's independence by force. With Japanese support he organized the Indian National Army, composed largely of Indian soldiers of the British Indian army who had been captured in the Battle of Singapore by the Japanese. As the war turned against them the Japanese came to support a number of countries to form provisional governments in the captured regions, including those in Burma, the Philippines and Vietnam, and in addition, the Provisional Government of Azad Hind, presided by Bose Bose's effort, however, was short lived in 1945 the British army first halted and then reversed the Japanese offensive. Bose's Indian National Army was driven down the Malay Peninsula, and surrendered with the recapture of Singapore .It was reported that Bose died soon thereafter from third degree burns received after attempting to escape in a Japanese plane which crashed in Taipei, Taiwan. 

Netaji's ashes are said to be preserved by his Japanese soldiers in the Renkoji temple in Tokyo. He is still a very respected figure in Japan and every year a ceremony is held in Renkoji temple to mourn his valiant death and to observe his towering legacy.

SOME REAL PHOTO OF SUBHAS CHANDRA  BOSE

SOME THOUGHT 

 By -Tanishq Deshmukh

15 August 2022

DR.Rajendra Prasad

                  Dr. Rajendra Prasad 

DR. Rajendra Prasad was born on  3 December 1884 . He was an indian politician who became the first President of India.He was one of the architects of the Indian Republic ,having served as the president of the Constituent Assembly and later as the first president of independent India.Prasad is the only president to have been elected twice for the office

During the independence movement, he fell his practice of law and joined the Congress Party, playing a prominent role in the indian Independence Movement Rajendra Prasad was a great scholar. It can be proved from the comment of an examiner who wrote on his answer sheet "examines better than examiner".A devoted student as well as a public activist , Prasad had formally joined the Indian National Congress way back in the year 1911.During the Lucknow Session of Indian National Congress held in 1916, he met Mahatma Gandh in 1920,he refired  from her lucrative career as a lawyer to join Gandhiji's Non-cooperation Movement. He was elected by the President of the indian National Congress during the Bombay session in October 1934 and again became the president when Netaji Subhash Chandra Bose resigned. In 1939 in The Quit India  Movement of 1942 he was imprisoned by the British for three years. He served as The President of India for twelve years from Jan 1950 to May 1962. He was later awarded the Bharat  Ratna, the nation's highest civilian  award . 

Dr. Rajendra Prasad was inspired to fight for India's freedom in his childhood by Japan's heroic successes in its war against Russia, a mighty European nation like Great Britain. Everyday he used to walk ten miles barefoot from his tiny village to the nearest railway station to buy a newspaper and read the breaking news of Japan-Russia War to his villagers.

DR. RAJENDRA PRASAD

By- Tanishq Deshmukh

 21 August 2022

How does TurboJet Engine Works?

HOW DOES TURDOFAN ENGINE WORK

∆ HOW DO TURBOFAN ENGINES WORK?

∆  Turbofan Engines

 A closer look at how modern jet engine

then manufacturing juggernauts like Boeing or Airbus usually launch a new aircraft type, the headline figure is almost always how fuel efficient the new plane is compared to its predecessor. More often than not, nearly all of the fuel savings can be traced back to improvements in the engines. 

Discover more aviation news with Simple Flying

 

∆ The Basics Principal

Before we get into the complex engineering of a modern turbofan engine, let’s understand the basics of how planes fly. Speaking very broadly, aircraft need two things to take to the skies: lift and thrust. Lift is the upward force generated by the wings, while thrust can be defined as forward momentum that comes from an airplane’s engines.

While traveling, passengers can only see a large fan at the front and a relatively small exhaust pipe at the back of a jet engine, but there’s a lot more going on between these two components. The main components of a turbofan engine include the fan blade, a compressor section, the combustion chamber, turbines, and the exhaust.

 

A turbofan engine works in four simple steps: suck, squeeze, bang, and blow, much like internal combustion engines in road vehicles. Up front, air is sucked into the engine through the massive fan. The high-velocity air then enters the second stage, where it is compressed using low-pressure and high-pressure compressor blades, in that order.

By this time, the air is up to 40 times denser than normal, with temperatures reaching a few hundred degrees. The compressed air will then enter the combustion chamber, where fuel will be sprayed in an attempt to mix the two. The mixture is then ignited, which results in the rapid expansion of the gases, which are ultimately coughed out from the exhaust nozzles.

Newton’s third law of motion states that every action has an equal and opposite reaction. In this case, exhaust gases leaving the engine at high velocity will propel the aircraft forward with an equal and opposite force, otherwise known as 

∆ Bypass ratio

While you now know the basic workings of a turbofan engine, there is one crucial detail left to understand. When air enters the engine through the large inlet fan, all of it doesn’t go to the engine core. A large chunk of incoming air travels between the engine cowling and the outer layer of the core. This air is known as bypass air as it exits out the back but does not go through the engine core. However, it is worth noting that bypass air also generates thrust. In fact, it produces more than half of the total engine thrust.

In simple terms, the higher the bypass ratio of an engine, the more efficient it will be, as the core is only responsible for generating a small part of the total engine thrust. It can even be said that the core's main function is to power the inlet fan in order to keep the bypass air flowing at capacity. This is what makes a modern turbofan engine significantly more efficient than older turbojet engines that are now predominantly used in fighter planes.

The amount of air distributed between the bypass path and the engine core is known as bypass air and is usually identified by the bypass ratio. A bypass ratio of 12:1 means that for every 12 units of air passing through the bypass duct, one unit is supplied to the engine core.

Since the bypass air is still passing through the engine inlet fan, it will have a slightly higher velocity compared to the outside. As a result, some thrust is also generated when bypass air exits the engine.

∆ How do the inlet fan and compressor turbines work?

The large inlet fan present at the front of the engine is powered by the engine itself. When the air-fuel mixture is combusted, the resulting hot gases are passed through a set of turbines that are concentrically connected to the inlet fan. In this way, a small part of the power generated by the engine is spent on keeping the fan running.

The compressor turbines in the "squeeze" stage are also powered in a similar way. Most modern turbofan engines have two concentric shafts running through the center, one for the inlet fan and another for the compressor turbines.

BY - TANISHQ TEJAS DESHMUKH

12 August 2022