How to perform exergy analysis using Aspen HYSYS and MS Excel - Lecture # 95

  Рет қаралды 6,115

Chem Engg & Aspen Channel - Dr. M. Haris Hamayun

Chem Engg & Aspen Channel - Dr. M. Haris Hamayun

Күн бұрын

Пікірлер: 31
@shirazahmed7446
@shirazahmed7446 2 жыл бұрын
Good to see
@aryatuhaprosper6896
@aryatuhaprosper6896 7 ай бұрын
Thank your Dr. Haris, does this approach apply to every component, like expander, valves, Hx etc?
@aspenchemchannel
@aspenchemchannel 7 ай бұрын
Yes, the approach will remain the same. However, the formula for each equipment will be different but overall exergy in and exergy out to be calculated. Hope that clarifies. Cheers!
@AbdullaAl-Saadi-h2u
@AbdullaAl-Saadi-h2u 11 ай бұрын
Hope you’re doing well sir, what if some of the mole fraction in vapor phase and some in liquid phase what should I do in this case? Should I go with the overall fraction?
@aakashshabbir
@aakashshabbir 2 жыл бұрын
👍
@Rohit_Kadam
@Rohit_Kadam Жыл бұрын
I want do perform exergy analysis on silencer/muffler of a bike engine but there is no inbuilt muffler in aspen hysys
@AryatuhaProsper
@AryatuhaProsper 7 ай бұрын
Thank you Dr. for sharing knowledge. I need know the reference for Standard Chemical Exergy, Is it available for every element? Thank you once again.
@aspenchemchannel
@aspenchemchannel 7 ай бұрын
Hi. These values are available in the literature. Please check for your relevant system. Cheers!
@thaongo5002
@thaongo5002 Жыл бұрын
hi, I have a question, if possible, please answer 1- In the answer that aspen Plus gives for exergy, is it only physical exergy, i.e. enthalpy and entropy, or does it include work and heat as well(except chemical)? 2- If it does not include work and heat, how should exergy loss formulation be done for the reactor when the numbers of work and heat become negative?
@aspenchemchannel
@aspenchemchannel 7 ай бұрын
Aspen only gives values of Physical exergy. For chemical exergy, they haven't yet added a feature. So, for this, you may use manual calculations to proceed.
@AbdullaAl-Saadi-h2u
@AbdullaAl-Saadi-h2u 11 ай бұрын
Another question, can I use the standard chemical exergy for components if my inlet stream is not at standard conditions?
@aspenchemchannel
@aspenchemchannel 7 ай бұрын
Yes, you can use it.
@JM-dr6di
@JM-dr6di 2 жыл бұрын
Hello sir,can i get Tennessee Eastman challenge problem simulation in aspen...? If is it available let me know i want it for study.
@ansubkhan4650
@ansubkhan4650 2 жыл бұрын
Dear sir it's not a relevant question but I want to ask can I simulate reverse osmosis plant in Aspen? Looking forward for your kind reply
@aspenchemchannel
@aspenchemchannel 2 жыл бұрын
Dear Ansub, Unfortunately, reverse osmosis plajt is not available in the Aspen. However, if anyone want to simulate, he/she may need to build that module using Aspen Custom Modeler, and then exporting it to the Aspen Plus for onward use.
@andrepaul5755
@andrepaul5755 Жыл бұрын
Is it possible to perform an Exergy Analysis on a 0.5 HP electric motor using the same steps?
@aspenchemchannel
@aspenchemchannel Жыл бұрын
Yes, it is possible.
@mdemonhossain1145
@mdemonhossain1145 2 жыл бұрын
Dear sir, is it possible to do the striling engine exergy and energy analysis in the same way?
@aspenchemchannel
@aspenchemchannel 2 жыл бұрын
Yes.
@mohammedal-ageel3050
@mohammedal-ageel3050 Жыл бұрын
Hysys has reported the exergy at standard conditions but we still need the same at the actual conditions for physical exergy calculation. can we meet online for further discussions?
@aspenchemchannel
@aspenchemchannel Жыл бұрын
If your conditions are the same as that of the standard, then exergy will be zero for that particular stream. For rest of the process streams, the exergy values will be as per the required conditions.
@mohammedal-ageel3050
@mohammedal-ageel3050 Жыл бұрын
@@aspenchemchannel yes, I agree on the zero exergy and if I understand you correctly that hysy has given the final answer of the calculation in which standard conditions and input conditions are considered. Regarding chemical exergy, some articles state that it is zero if no chemical reaction. What is your opinion?
@aspenchemchannel
@aspenchemchannel Жыл бұрын
Chemical exergy is also applicable once there is a separation in the system. So, almost all industrial processes involve separation, even if very few of them don't involve the reaction. Therefore, in my opinion, it is better to use chemical exergy along with the physical exergy.
@mohammedal-ageel3050
@mohammedal-ageel3050 Жыл бұрын
Please enlighten me if online discussion is an option
@nayanmohite1016
@nayanmohite1016 Жыл бұрын
From where you have taken the energy value Can you help me in it
@aspenchemchannel
@aspenchemchannel Жыл бұрын
I think you are talking about exergy value. The data is easily available in the literature.
@syednehalikramhassan2822
@syednehalikramhassan2822 2 жыл бұрын
Can u please inform from where did we found out the values of standard exergies for different components
@aspenchemchannel
@aspenchemchannel 2 жыл бұрын
Various research articles are available to obtain the values of standard chemical exergies of various components.
@karimkarim-ww5ii
@karimkarim-ww5ii 2 жыл бұрын
How to enter an ejector in aspen hysys
@Mdmehedihasan-gt6su
@Mdmehedihasan-gt6su 2 жыл бұрын
Sir , How to perform exergy analysis for expander ? Is it same process ??
@aspenchemchannel
@aspenchemchannel 2 жыл бұрын
Yes. The formula for calculation will be W/(Ein-Eout) * 100
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