Answer / p.kithan

Since this system is a non-continuous system and assuming
1.The cooling medium as Air at room temperature
The heat transfer with time can be calculated as,
dq/dt=UA(Ts-T)

WCpdT=UA(TS-T)dt

on integrating,

Time taken (t)=WCp\UA*ln((Ts-T2)/Ts-T1))

q=Heat transfered,w=weight of water,Cp=specific heat of
Air,Ts=saturated temperature of air,T1=temp of water at
initial,T2=temp at final,A=area of heat transfer.
U=over all heat transfer coeffcient(assume for water,ref-
perrys)

AS PER IS(INDIAN STANDARD)RULES, IS INSTRUMENT EARTHING REQUIRE FOR INSRTUMENT WHICH IS ONLY 24V DC POWERED?

1 Answers  

---

We are having proplem with the persperation smell in ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is not conditioning the environment. We have to use exhaust fan to through out of the room bad air. Could anyone suggest how to coup with this effectively using chemical engineering. Any permanent solution to neutralise the bad smell.The Air freshners are not doing enough instead making a bad odour.

0 Answers  

---

Can you pls tell me how to calculate the amphere rating of cable in case of three phase supply but all load is single phase

0 Answers  

---

Can condensate control in a reboiler cause water hammer problems?

0 Answers  

---

i am going to appear vedanta written test so plz can any body suggest me for this on madhu.5393@gmail.com

0 Answers  

---

hai....i am chandrika. if anybody having test questions for HAL,HPCL,ONGC,IOL...PLS SEND THE QUES WITH SOLVED ANSWERS TO ME TO MY MAIL ID chandrismiles@yahoo.co.uk

0 Answers   HAL,

---

How instrument air is continually supplied in process plant?

0 Answers  

---

SSR meanig

1 Answers  

---

What is a barometric condenser?

0 Answers  

---

is petroleum a mixture of hydrocarbon?

5 Answers  

---

Explain what type of pump may be appropriate for a liquid near saturation, a low flow rate, and very limited npsha (net positive suction head available)?

0 Answers  

---

What are the design considerations for a piping system for the transfer of slurries?

0 Answers  

---