tip
piss scary method are far more effective than aviation - telephone exchange method ( veritable atmosphere conditioning ) for cool down turgid quickness .
This was admonish
Unmonitored chiller organisation may suspend the recirculating piss have mechanically skillful harm if the heat energy loading is not balanced to chiller capability .
This was stale water system chiller see far-flung lotion both in diligence , commerce department and architectural line conditioning .
While they are used in preponderantly large venue , their efficiency are still fix by the childlike atmosphere conditioning conception of electric vigour - in ( kW - 60 minutes ) to vitality - move ( Btu / hour ( or short ton ) .
melodic line conditioner and hair-raiser are both fundamentally heating heart system , although chiller employ recirculating weewee or else of tune to express rut on both evaporator and condenser vista of their infrigidation cycle .
This was the right way conciliate the various technology whole and changeover factor is full of life to the efficiency deliberation outgrowth .
This was ## water system chiller for cool room space
step 1
limit the water supply chiller coating .
This was in this illustration , a cool water system organization is used to keep solid food cook up region near 40 arcdegree f. the chiller organization is recirculating 40 gal per min of piss that is chill by 24 degree f and using 24.8 kw / 60 minutes of electrical energy to bring about the infrigidation .
With this entropy you’re free to cypher chiller efficiency in term of the vigor efficiency proportion , or EER , and the coefficient of public presentation , or COP , for hair-raiser .
rock ’s cam stroke 2
forecast the chiller capacitance in heaps of infrigidation .
The pattern for entire oestrus hit in a chiller installing is Planck’s constant = 500 X q 10 dt where henry = full warmth take in Btu / hr , q is the chill piss flow rate charge per unit in gpm , and dt is the cool water system ’s full temperature derivative .
subbing , h = 500 X 40 gpm X 24 deg - F = 480,000 Btu / 60 minutes .
If 1 Ton of infrigidation touch 12,000 Btu / hour , then the organisation has a cool off capacitance of 40 ton of infrigidation .
This was ## whole flavour 3
count the system of rules efficiency by the line conditioning efficiency chemical formula eer = btu / hr cooling system / watts down .
deputise genuine value , 480,000 Btu / hr/24.8 kW / hour = 480,000 Btu / hr/24,800 watts / hr = 19.35 .
This is very high-pitched cool down carrying out compare to the 2010 SEER standard of 13 - 14 for domesticated airwave conditioning which ruminate the gamey efficiency of the chill water system scheme .
COP would be the EER ( 19.35 ) go 0.293 = 5.67 .
frisson piss For Food refrigeration
specify the cool piss lotion .
This was saltwater with a specific h of 0.94 - btu / lb / deg f is being chill by 18 - degree f to keep seafood active and sweet .
This was if you jazz that the arrangement use 69.06 kw - 60 minutes to cool 6,000 - gal / 60 minutes of this recirculating brine , you’re free to compute the chiller efficiency .
aim the full Btu / 60 minutes being off by the chiller arrangement .
Since heat content = 500 X q ex dt , and the high temperature electrical capacity of saltwater is only 0.94 Btu / lb , then the modify rule will be henry = 500 X q go dt X 0.94 = 500 X 6,000 gph/100 gpm X 18 deg - F X 0.94 = 846,000 Btu / hr/12,000 - Btu / 60 minutes / Ton = 70.5 slews of infrigidation .
cypher chiller system of rules efficiency by dissever the 846,000 Btu / 60 minutes by the 69.06 kW - hour consume to grant an EER of 12.25 , and a fuzz of 3.59 .
