Heat Exchange

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antmound Participant Join Date: Jun 2010 Posts: 1	Heat Exchange 06/22/2010 9:01 AM
	Question for anyone, When dealing with water supply and return for induction coil boxes, does piping and hose size matter and what is the normal procedure for such an application? Let me know if more information is needed.
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DVader1000 Guru Join Date: May 2007 Location: Anywhere Emperor Palpatine assigns me Posts: 2774 Good Answers: 101	#1 Re: Heat Exchange 06/22/2010 11:34 AM
	I presume the water is to be used for cooling. Yes, hose and piping size are of vital importance to ensure proper flow. The outlet pipe returning the water back to the chiller must always be of larger size than the inlet size because of the thermal expansion caused by the heating of the water. The normal procedure for such an application is to get a professional to design and install the system. No disrespect meant here since at least you are asking sensible questions unlike some posters, but considering that you want to use water to cool an electrical unit, it's best to leave it to someone who knows what he's doing. I know you don't, because otherwise you wouldn't be asking such questions here. Here are some of the key points to inform the professional doing the work: what your maximum allowable temperature is, what your required temperature is, what the power consumption of your unit is, what your unit energy efficiency is and what your expected budget is. From here he can size the cooling system for you. __________________ If only you knew the power of the Dark Side of the Force
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Anonymous Poster	#2 Re: Heat Exchange 06/22/2010 11:45 PM
	Hi, Dear Friend , you have to be specific while connecting the inlet & outlet size of the induction heater of secondary side otherwise pressure drop across the heatexchanger result in in efficent temp.diff in the system, you will not get cool water in out let of primary side of the heat exchanger. if you want more detail on the subject give us the configuration of your heat exchanger we will provied you the correct data of piping & hose size of your heat exchanger , inshort it matters always.
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Lou Bindner Power-User Join Date: Feb 2010 Posts: 103 Good Answers: 2	#3 Re: Heat Exchange 06/25/2010 4:53 PM
	In this situation size does matter, very much. The larger the pipe, the lower the velocity the lower the circulating pump power consumption for a given GPM of water circulated. Limiting the velocity to under10 feet per second goes a long way toward avoiding noise generation and potential erosion.There has to be a balance against first cost but you could maybe a afford the system because the pipe was so small but go broke because of the cost of operating the system. My advice is to consult ASHRAE's guides on the subject. Lou Bindner
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Anonymous Poster (1); DVader1000 (1); Lou Bindner (1)

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