HVAC - control and monitoring with industrial plc based on Arduino

Implementation of an HVAC system using the Industrial Shields equipments for a specific solution in this sector.

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1. C A S E S T U D Y I N D U S T R I A L S H I E L D S C O N T R O L L I N G A N H V A C S Y S T E M W I T H A R D U I N O B A S E D P L C ’ S I m p l e m e n t a t i o n o f a n H V A C s y s t e m u s i n g t h e I n d u s t r i a l S h i e l d s e q u i p m e n t s f o r a s p e c i f i c s o l u t i o n i n t h i s s e c t o r . I n s t a l l a t i o n c o m p o s e d o f a s e r v e r i m m e r s i o n c o o l i n g s y s t e m , b e s i d e s c o n t r o l l i n g t e m p e r a t u r e , o d o r s a n d v e n t i l a t i o n o f t h e r o o m w h e r e t h e w h o l e s y s t e m i s i n s t a l l e d .   S U M M A R Y O w i n g t o t h e p l a n t n e w r e q u i r e m e n t s , t h e c u s t o m e r n e e d s a n e w a n d p o w e r f u l r e f r i g e r a t i n g s y s t e m t o i m p r o v e t h e a c t u a l H V A C i n s t a l l a t i o n . I t i s a l s o i m p o r t a n t t o c r e a t e a n i n s t a l l a t i o n m o d e l t h a t c o u l d b e e a s i l y r e p l i c a t e d , w i t h f l e x i b i l i t y t o m o d i f y t h e a c t u a l s e q u e n c e b e c a u s e i t e x i s t s t h e p o s s i b i l i t y o f s h a r i n g t h e o i l r e f r i g e r a t o r w i t h n e w s e r v e r f a r m s , d u e t o t h e s p e c o f t h e c o o l e r . T h e p r o j e c t i s a s e r v e r f a r m w i t h a n s p e c i f i c r e f r i g e r a t o r s y s t e m b a s e d o n o i l . T h e p a r t i c u l a r i t y o f t h i s i n s t a l l a t i o n r e q u i r e s a g r e a t c o n t r o l a n d m o n i t o r i n g o f t h e d i f f e r e n t c r i t i c a l p a r a m e t e r s . S t a r t i n g f r o m t h e w o r k i n g t e m p e r a t u r e o f t h e s e r v e r s , t h e h u m i d i t y , a n d a l s o t h e o i l o d o r s , t o m a i n t a i n t h e e n v i r o n m e n t c l e a n a n d a l s o f u n c t i o n a l .  

2. C A S E S T U D Y O B J E C T I V E T h e H V A C s y s t e m h a s t o c o n t r o l a s e r v e r s u b m e r g e d i n a c o o l i n g s y s t e m . T h e r o o m a n d t h e t a n k h a s t o b e i n s i d e a c e r t a i n r a n g e o f t e m p e r a t u r e a n d h u m i d i t y . A p a r t f r o m t h a t , t h e r e i s a v e n t i l a t i o n s y s t e m w h i c h i s r e s p o n s i b l e f o r r e d u c i n g o i l o d o r s t h a t a r e i n t h e p l a n t s o t h e o p e r a t o r s c a n w o r k o n i t . F I N A L S O L U T I O N ( H A R D W A R E ) T o c o n t r o l t h e f l u i d i t i s r e q u i r e d a P I D i m p l e m e n t a t i o n i n t h e A r d u i n o b a s e d P L C w i t h a t e m p e r a t u r e s e n s o r . T h e s e n s o r v a l u e i s c o m p a r e d w i t h a s e t p o i n t a n d t h e P L C t r e a t s t h e f l o w t h a t t h e c o o l e r h a s t o i m p l e m e n t . T h e r o o m c l i m a t e i s c o n t r o l l e d b y a d e h u m i d i f i e r / h u m i d i f i e r a n d a n a i r c o n d i t i o n i n g . T h e y a r e e n a b l e d o r d i s a b l e d d e p e n d i n g o n t h e v a l u e s o f t h e t e m p e r a t u r e a n d h u m i d i t y s e n s o r s . T h e v e n t i l a t i o n i s t r e a t e d w i t h a v a r i a b l e f r e q u e n c y d r i v e , T h e A r d u i n o P L C m a k e s t h e v e n t i l a t o r r o t a t e f a s t e r o r s l o w e r d e p e n d i n g o n t h e o d o r .   T h e A F D ( v a r i a b l e f r e q u e n c y d r i v e ) i s c o n t r o l l e d u s i n g a n a n a l o g s i g n a l . T h e I n d u s t r i a l S h i e l d s e q u i p m e n t h a s t o c o n t r o l t h e t e m p e r a t u r e ( r o o m a n d f l u i d ) , t h e h u m i d i t y a n d t h e v e n t i l a t i o n o f a n e n t i r e r o o m w i t h t w o c r i t i c a l e l e m e n t s , t h e t e m p e r a t u r e a n d a l s o t h e o d o r s . F a b r i c a d e l P o n t 1 - 1 1 · ( R e c i n t e i n d u s t r i a l d e l P o n t V e l l ) · 0 8 2 7 2 , S a n t F r u i t ó s d e B a g e s ( B a r c e l o n a ) · S p a i n i n f o @ i n d u s t r i a l s h i e l d s . c o m • w w w . i n d u s t r i a l s h i e l d s . c o m

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