tag:blogger.com,1999:blog-4756081185218551951.post4914331858070921448..comments2019-08-22T11:43:26.812+05:30Comments on Pharma Engineering: [How To] Select Condenser Capacity for a ReactorAjay Kumarhttp://www.blogger.com/profile/14369498840043320777noreply@blogger.comBlogger39125tag:blogger.com,1999:blog-4756081185218551951.post-3358729738924231382019-06-29T14:47:08.532+05:302019-06-29T14:47:08.532+05:30Dear ,
There will be two types of loads on utilit...Dear ,<br /><br />There will be two types of loads on utility, sensible load as well as latent load of the system. so we have to consider both of them. if we are able to maintain our reaction mass at reflux temperature then the heat that we supply will be consumed for reflux(i.e., latent load).<br /><br />Hope you understand.<br /><br />Next time, kindly comment with your good name plzz.<br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-14309887067009541632019-06-28T12:55:35.054+05:302019-06-28T12:55:35.054+05:30Hi Ajay
I have a doubt. We will have two heat cap...Hi Ajay<br /> I have a doubt. We will have two heat capacities for any reactor. One is total heat required to raise the temperature and other is heat flux available with the reactor. So, my utility flow rate to be calculated based on total heat required or heat flux available. Even though i supply my utility flow rate as per total heat required, only whatever heat flux available that much only will be transferred. Please clarify.Unknownhttps://www.blogger.com/profile/14735569140284152751noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-58931612541715984602019-06-24T10:18:58.966+05:302019-06-24T10:18:58.966+05:30Hii Akki,
I think Step-2 is clear, Instead of add...Hii Akki,<br /><br />I think Step-2 is clear, Instead of adding all in one formula, i've splitted into two half's. if you can make me clear what you are not getting, i'll help you. reach me at pharmacalc823@gmail.com<br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-80541222281189369392019-06-24T10:17:15.054+05:302019-06-24T10:17:15.054+05:30Dear,
If we are trying to distill out azeotropic ...Dear,<br /><br />If we are trying to distill out azeotropic mixture we have to add another solvent to make one of the solvent as high boiling fraction, so that it will retain for sometimes if the additionally added solvent forms a low boiling azeotrope, then we have to add azeo box in the collection line.<br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-79417900284871275522019-06-16T12:50:06.545+05:302019-06-16T12:50:06.545+05:30Dear sir In step 2nd calculation of lmtd please ex...Dear sir In step 2nd calculation of lmtd please explainAkkihttps://www.blogger.com/profile/08140323923165467344noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-62521303706561352602019-05-23T22:58:41.882+05:302019-05-23T22:58:41.882+05:30sir,
is the above process is same if we are distil...sir,<br />is the above process is same if we are distilling the azeotropic mixture?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-2775881192728755932019-04-28T18:04:52.632+05:302019-04-28T18:04:52.632+05:30Dear ,
In the above calculation, i've conside...Dear ,<br /><br />In the above calculation, i've considered the basic definition as main purpose of condenser is to remove the latent heat, hence i've considered the the vapour temperature twice. And in the sensible heat case, i've considered 5 degree dT, if required you can change that to whatever the extent we want.<br /><br />Next time, comment with your good name please. <br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-80909963859345927792019-04-28T11:28:23.562+05:302019-04-28T11:28:23.562+05:30Dear Ajay,
In step 3 LMTD calculation... why you a...Dear Ajay,<br />In step 3 LMTD calculation... why you are taking solvent temperature is same.... I think the temp should decrease... by using chilled water utility... then only it get condense... give me replyUnknownhttps://www.blogger.com/profile/07814121384255235749noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-88177684571352981792019-04-14T19:54:09.329+05:302019-04-14T19:54:09.329+05:30delta T2 is temperature difference, LMTD is log me...delta T2 is temperature difference, LMTD is log mean temp. differenceAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-4345961752449516882019-04-14T12:32:28.753+05:302019-04-14T12:32:28.753+05:30What the meaning of LMTD ans delta T2. What the meaning of LMTD ans delta T2. Unknownhttps://www.blogger.com/profile/02002262813551824837noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-90238271037001972362019-03-10T10:24:27.945+05:302019-03-10T10:24:27.945+05:30You considered effective heat transfer area in ste...You considered effective heat transfer area in step 2 calculation.<br />But actually heat transfer area depends upon the type of jacket that reactor is having ? We need to consider jacket area instead of reactor heat transfer area na? Please clarify my doubtUnknownhttps://www.blogger.com/profile/08675959950837879307noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-78136333959765893202018-09-07T00:58:12.553+05:302018-09-07T00:58:12.553+05:30Dear Sir,
Thats a hypothetical question, so the e...Dear Sir,<br /><br />Thats a hypothetical question, so the exact answer can be found at the engineering services person. Kindly consult them.<br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-88755629508100608122018-09-06T22:40:46.247+05:302018-09-06T22:40:46.247+05:30in my company using 3 condensers how to calculate ...in my company using 3 condensers how to calculate heat transfer area for 3 condensers<br />VATTURI VENKATESULUnoreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-53088922873718823082018-08-30T20:57:51.835+05:302018-08-30T20:57:51.835+05:30Dear Pradeep,
Pl find the required parameters in ...Dear Pradeep,<br /><br />Pl find the required parameters in the below link,<br />http://pharmacalc.blogspot.com/2018/06/chemical-solvent-properties.html<br /><br />Best Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-26409398588446857392018-08-03T04:43:00.509+05:302018-08-03T04:43:00.509+05:30Dear Rama,
It wont work like that, What so ever i...Dear Rama,<br /><br />It wont work like that, What so ever i've calculated is applicable for primary condenser only, if you need to add a secondary condenser, it should be approx 30% of the primary condenser, i.e., 26 x 0.3 = 7.8 ~8 Sq.m of secondary.<br /><br />Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-26021795464160582482018-07-29T21:33:59.437+05:302018-07-29T21:33:59.437+05:30let me know as per above area 26 m2 single condens...let me know as per above area 26 m2 single condenser but if i will go for two condenser can i consider the primary condenser 16 m2 and secondary condenser 10 m2 it applicable for above ot not ??? shall we divide the same ?? seetha ramaiahhttps://www.blogger.com/profile/10390651765878520742noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-54489302446019649192018-07-20T10:05:53.903+05:302018-07-20T10:05:53.903+05:30In this the area value is coming wrong.A is coming...In this the area value is coming wrong.A is coming as 35 M2 after the calculation. But u are showing it is 21 m2Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-66741571065201403402018-07-18T16:18:42.558+05:302018-07-18T16:18:42.558+05:30Is there boil-up rate you calculate is kg/s, if it...Is there boil-up rate you calculate is kg/s, if it is not? then how we will calculate chilled water flow rate for condenser in kg/s?.<br />Unknownhttps://www.blogger.com/profile/01232584758786700957noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-9819104236306819352018-06-09T17:33:28.347+05:302018-06-09T17:33:28.347+05:30Dear sir,
Please share latent heat and specific h...Dear sir,<br /><br />Please share latent heat and specific heat capacities of different chemicals.<br /><br />Regards,<br /><br />Pradeep Pradeep Pundipallihttps://www.blogger.com/profile/14541826150336108346noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-65368326233963375842018-05-10T01:30:55.575+05:302018-05-10T01:30:55.575+05:30Dear Mahesh,
Perform the milling operation with c...Dear Mahesh,<br /><br />Perform the milling operation with cylinder nitrogen as utility instead of air, it may help you,<br />As per my knowledge the inlet air is not having enough equilibrium moisture, so the air is gonna absorb the moisture from the material during the micronization.<br /><br />Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-43740363285170810972018-05-09T16:28:43.551+05:302018-05-09T16:28:43.551+05:30Dear Ajay,
One of our product we have initially wa...Dear Ajay,<br />One of our product we have initially water content 6% after Jetmilling it goes down below 4% but limit is above 5 % ..<br />We are using 9 kg/cm2 pressure air with contain 0.0009 gm/m3 water content.<br />So please tell me that how to match both partial pressure so we can't lose moisture content below 5 % ..please give some calculations for the same...Mahesh vantehttps://www.blogger.com/profile/13477533557615249664noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-8483429879056674032018-04-23T16:10:14.344+05:302018-04-23T16:10:14.344+05:30Give one exampleGive one examplepolisetty kartikhttps://www.blogger.com/profile/18039562310229177334noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-50706275608775004162018-04-16T08:31:31.147+05:302018-04-16T08:31:31.147+05:30Dear Mahesh,
Usually during purification stage th...Dear Mahesh,<br /><br />Usually during purification stage the material composition will vary, so once try to compare the analysis at both stages, if there is any reduction in impurities in both analysis, then we may say that due to the binding / presence of the subject impurity in that stage lead to that particular tapped density, and then try to evaluate based on varying solvent quantities. It may solve the issue if the vary in quantities lead to subject impurity reduction.<br /><br />Regards,<br />AJAY KAjay Kumarhttps://www.blogger.com/profile/14369498840043320777noreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-69760795496438903672018-04-15T05:18:43.592+05:302018-04-15T05:18:43.592+05:30You name it and South Africa has an abundance of i...You name it and South Africa has an abundance of it.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4756081185218551951.post-45711419182100602392018-04-09T16:01:19.868+05:302018-04-09T16:01:19.868+05:30Dear Ajay,
In one of our product after purificatio...Dear Ajay,<br />In one of our product after purification getting tap density above 0.7 limit is 0.3 to 0.7i.e always higher side, after reprocessing the same batch with same purification procedure with same cooling pattern then tap density comes within limit...so pls share thought on it...Mahesh vantehttps://www.blogger.com/profile/13477533557615249664noreply@blogger.com