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I want to use the IMACA standards 305, can anyone inform me where i can get this. thanks in advance

Hi Everybody. I wanted to know if it is advisable to spray water directly on the fins of a large V shaped air cooled condenser or shall i use a celdek evaporative pad before the condenser coils and spray water on the celdek pads. What could be the advantages and disadvantages of using either...

Hi Friends, I have come accross a few calorimeter test results for condensers and evaporatos, but the readings do not make sense to me, as i am not exactly aware at what points the readings are made. can you provide me with some details regarding the schematic diagram of a calorimeter test...

dear all, i have been using and designing the shell & tube heat exchangers using the book of d q kern. process heat transfer can anyone suggest a book for designing tube & fin type of heat exchangers used in the air conditioning and refrigeration industry. thanks in advance

dear all, i have been using and designing the shell & tube heat exchangers using the book of d q kern. process heat transfer can anyone suggest a book for designing tube & fin type of heat exchangers used in the air conditioning and refrigeration industry. thanks in advance

yes, you can visit the website of circul air or dectrom.com you can also write to industheco@vsnl.com if you are suituated in asia/middle east.

dear quark, could you pls forward the same to me also at cvinod68@vsnl.net

Hi all. I ve been designing some mini air cooled condeners using shaded pole motors.(5W through 16W)The motors are with ball bearing. But in USA people usually use the unit bearing motors. What is the differences between these two type of motos. I would like to buy the unit bearing motors, any...

what are the general procedures for getting a UL listing for condensers and evaporators. we also wanted to test condensing unit performances using two/three condensers of different make. Is ther any perticular agency/test lab in india who can do these type of teting. thanks and appreciate your...

you can use the below formula to calculate acutal sm3/hr (Nm3/hr) from am3/hr Actual M3/Hr = (Nm3/Hr x (273 + measured temp. deg. C)) / 273 considering that there is not much pressure difference. The pressure difference is basiclayy due to the altitude. Or the standrad formula is...

thanks speco, i did try to increase the air flow by chenging the motor pulley dia and increaing the fan rpm. but even with 20% increase in air flow there was hardly any appreciable chenge in the oil outlet temp. I thing the coil does have turbospirals inserted into the tubes. Are the heat...

Hi all. We are using tube and fin type fin fan cooler to cool the lubrication oil of our 10 MW gas turbine. During high abient temp. the oil temp. rises very high. Please inform if there are flow retarders or heat transfer promotors available which can be inserted into the tubes, to increase the...

Hi all, We intend to buy a helium testing machine to test our coils. can anyone provide with the names of suitable manufactures of these machines. I understand that there will be escape of helium gas due to the leakages, is it dangerous for the operators regards

hi ! could you guys help me source connectors / terminal blocks for two core wire 2.5mm2 (10 amps) for single phase motors having two clip type lug connections and from the power source the wire will be having two pin type lug connection. The connector will be mounted on a sheet metal frame with...

i tried with a vendor with a cnc machine. but maintaining the dimensions after machining & brazing and very critical & diffficult. Sorry a garage or even a very good mechine shop are not able to do the job.

Dear All. Thanks for the reply. Actually we need a steel block assembly with two tubes brazed on it suitable to be connected to the txv valves. thanks

we are manufacturers of automibile air conditioning kits. we also use the txv's. need help in sourcing a suitable manufacturer for the pipe assembly for the txv valves. thanks vinod

yes. the hvac is a bit new to me as i have been more in the petrochemical and process engineering. anyway i have been reading quite a bit. the main question that has been of interest to me had been that some of the compressor manufactureres mention compressor hp with cooling capacities in their...

hi jcpp16674 i agree the compressor is only going to compress the low pressure refrigerant gas to high pressure gas. then how do i select the evaporator capacity in kcal/hr or watts/hr

hi all, i am trying to design a condensing unit. how do i calculate the cooling capacity of the compressor when the compressor hp is known. i will be using the hermatic compressors of 1/4 to 3/4 hp.