Friday 12 June 2020

WORKING OF STIRLING OR BRAYTON HEAT ENGINE

✏️WORKING OF A STIRLING ENGINE OR A BRAYTON HEAT ENGINE 



๐Ÿ“ŒThe  array  of  mirrors  focuses  the    sunlight the  concentrated  sunlight  then    heats  up the  working  fluid  to  temp  of    around 750˚C  with  in  the  receiver. 
๐Ÿ“ŒThe  heated  high  temp  working  fluid  is then  used  in  either  a  Stirling  or  Brayton heat  engine  cycle  to  produce  mechanical power  via  rational  kinetic  energy  and  then electricity  for  utility  use  with  an  electric generator.
๐Ÿ“ŒWhen  the starter  of  the  engine  is  switched  on  by the  operator,  the  external  heat  energy  source starts.  (Intensity  of  which  can  be  controlled  by the  operator  through  a  provided  mechanism). 
๐Ÿ“ŒAfter  starting  the  heat  source  the  heat  is transferred  from  heat  source  to  the  hot  cylinder walls,  which  in  turn  raises  the  temperature  of the  gas  inside  the  hot  cylinder  due  to  which disturbance  in  the  molecules  of  the  gas  occurs because  of  the  kinetic  energy  provided  by increased  temperature. 
๐Ÿ“ŒThis  disturbance  increases  the  molecular pressure  over  the  surface  of  the  piston  inside the  hot  cylinder  in  order  to  expand  the  gas, which  in  turn  pushes  the  piston  away  for  the expansion.
๐Ÿ“ŒWhen  the piston  moves  away  i.e.  from  TDC  to BDC  due to the  expansion  provided  by  the  hot gas  the  crank  shaft  rotates  which  is considered  to  be  the  work  output. 
๐Ÿ“ŒWhen  this  hot  cylinder  piston  moves  from  BDC to  TDC  due  to which  the  cold  cylinder  piston moves  from  TDC  to BDC,  the  hot  piston  starts pushing  the  hot  gas  into  the  cold  cylinder  for cooling. 
๐Ÿ“ŒThe  cooling  system  associated  with  the  cold cylinder  instantly  cools  the  entering  hot  gases from  the  hot  cylinder. From  TDC  to BDC.  
๐Ÿ“ŒWhich  in  turn  compressing the  cold  gas  inside  the  cold  cylinder  due  to which  the  cold  gas  moves  from  cold  cylinder  to the  hot  cylinder  for  the  further  cycles.

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