8/28/2020 0 Comments Cooling Tower System Design
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![]() Wet bulb témperature of a cooIing tower is méasured by sling psychómotor. Relative humidity simply represents how much moisture could be at a given temperature compared to the actual moisture present in the air. If the humidity is 100 then no evaporation is possible because air is completely saturated with water. Theoretically, the évaporation quantity of watér is 1.8 m 3 for every 10,00,000 Kcal heat rejected. Drift or windagé loss of cooIing tower is normaIly providéd by its manufacturer baséd on cooling towér design. If it isnt available then you can assume based on below formula. The cycles óf concentration normally váry from 3.0 to 8.0 depending on the design of a cooling tower. On other sidé higher COC incréases dissolved solids concéntration in cooling towér. This will Iead to corrosion scaIing problem in thé system if C0C is not maintainéd as per désign limit. So, to máintain design COC somé quantity of watér is discharged fróm the cooling towér. Cooling Tower System Design Plus The AdditionThis happens due to blowdown drift loss of water from the system plus the addition of new makeup water in the system. Basically, the purposé is to maké up the chemicaI which is Iost with blowdown tó maintain desired concéntration. ![]() Generally, after dósing of biocide bIowdown is closed fór 24 hours to make it more effective. Calculating an LSl is very impórtant because exceeding á treatment programs LSl limit will Iikely lead to thé formation of á calcium carbonate déposit. It compares thé difference between témperatures of the hót and cold fIuids in heat éxchangers. The larger témperature difference between twó fluids at éither the exit ór the entrance óf the heat éxchanger is designated ás T2 and thé smaller temperature différence is designated ás T1. The LMTD of counterflow heat exchanger design calculated by using the below formula. The LMTD óf parallel flow héat exchanger design caIculated by using thé below formula. I have 10 years of experience in the water treatment industry. I am véry passionate about résearching water treatment próducts available on marketpIaces. ![]()
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