Determining Dew Point Temperature And Relative Humidity Using A Sling Psychrome

In   C lass   A ctivity:   D etermining   D ew   P oint   T emperature   a nd   R elative   H umidity   U sing   a   S ling   P sychrometer  

 

Name   _ ______________________________________   N ame   _ ______________________________________  

 

Name   _ ______________________________________   N ame   _ ______________________________________  

 

1.   C heck   t o   b e   s ure   t hat   t he   “ wet”   b ulb   t hermometer   o n   y our   s ling   p sychrometer   i s   w et   ( it   s hould   b e).  

2.   S wing   t he   a pparatus   a round   f or   a t   l east   f ive   m inutes.  

3.   R ecord   t he   t emperatures   o f   t he   t wo   t hermometers:  

 

o

Dry   B ulb   T  

_________  

C  

 

o

Wet   B ulb   T  

_________  

C  

 

o

(Dry   B ulb   T   –   W et   B ulb   T )  

_________  

C  

(This   i s   t he   “ depression   o f   t he   w et   b ulb   t emperature”)  

 

Use   t he   “ Relative   H umidity”   c hart   t o   d etermine   t he   r elative   h umidity   o f   t he   a ir   i n   t his   r oom:  

 

Relative   H umidity:  

_________   %  

 

Use   t he   “ Dew   P oint   T emperature”   c hart   t o   d etermine   t he   d ew   p oint   t emperature   o f   t he   a ir   i n   t his   r oom:  

 

o

Dew   P oint   T emperature:     _ ________  

C  

 

 

 

In   C lass   A ctivity:   D etermining   D ew   P oint   T emperature   a nd   R elative   H umidity   U sing   a   S ling   P sychrometer  

 

Name   _ ______________________________________   N ame   _ ______________________________________  

 

Name   _ ______________________________________   N ame   _ ______________________________________  

 

1.   C heck   t o   b e   s ure   t hat   t he   “ wet”   b ulb   t hermometer   o n   y our   s ling   p sychrometer   i s   w et   ( it   s hould   b e).  

2.   S wing   t he   a pparatus   a round   f or   a t   l east   f ive   m inutes.  

3.   R ecord   t he   t emperatures   o f   t he   t wo   t hermometers:  

 

o

Dry   B ulb   T  

_________  

C  

 

o

Wet   B ulb   T  

_________  

C  

 

o

(Dry   B ulb   T   –   W et   B ulb   T )  

_________  

C  

(This   i s   t he   “ depression   o f   t he   w et   b ulb   t emperature”)  

 

Use   t he   “ Relative   H umidity”   c hart   t o   d etermine   t he   r elative   h umidity   o f   t he   a ir   i n   t his   r oom:  

 

Relative   H umidity:  

_________   %  

 

Use   t he   “ Dew   P oint   T emperature”   c hart   t o   d etermine   t he   d ew   p oint   t emperature   o f   t he   a ir   i n   t his   r oom:  

 

o

Dew   P oint   T emperature:     _ ________  

C