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Recent content by MAEC

  1. MAEC

    Comparing STEAM energy and energy loss

    The exact question I had to handle 5 months ago or so. Two more things I had to consider besides what was already exposed by the other members: 1. Availability. It will depend on the final process and reference. 2. Critical insulation radii. Check those and see what happens. MAEC
  2. MAEC

    About a previous post / Exergy analysis

    Hello members. A few months ago I came to this forum asking for tips on energy balances and exergy analysis for a sugar industry project. Since the begining of the project, which lasted 26 months, I often came here for replies on such inquiry but just a few were given. Now I am back to let...
  3. MAEC

    Plant Analysis

    Greetings to all. This is the first time I post on this forum. I have some questions regarding plant analysis. I am at a plastic processing plant that just got certified by ISO. I started to look at the indexes we have in our score card and a few questions popped to my head: 1. Lets say you...
  4. MAEC

    Plant Analysis

    Hello to all. This is the first time I post on this forum. I need some guidance on a few things since my engineering degrees aren't in the Industrial area. 1. In a plastic processing plant (injection, blow molding and extrusion) we have some indexes that are supposed to show us the performance...
  5. MAEC

    Brief hi to all / plant analysis

    Dear Members, I just signed in for this forum so I will introduce myself first and then go right to the point. I am a double major in mechanical and electrical engineering from Guatemala who's professional experience has been in the sugar industry. Right now I started a new venture in the...
  6. MAEC

    Steam consumption rate and efficiency of turbine

    Dear Members: I am conducting an analysis of a cogen cycle and found something I'd like you to comment on. The turbines I analyzed are single stage turbines. I contacted the companies that made them and they gave me their steam consumption rate as a tool to obtain the efficiency of the...
  7. MAEC

    Sugar Industry

    RMW Thank you for the links... i have seen the sugartech software but i have to say i found some discrepancies in the calculations... i think they use the simple method for calculations which does not involve water sucrose solution's enthalpy nor increase in boiling point inside the tubes nor...
  8. MAEC

    Sugar Industry

    rmw: Thank you for your interest. By huge boilers i believe i got out of hand there... but lets say from 4.5 M#/hr and up, bagasse or charcoal fired... I am so interested in this bagasse fired boiler at cogen india... it is quite big!! they have it for power generation purposes only. Yes, my...
  9. MAEC

    Question regarding an efficiency formula and CO levels

    49078 Thank you for the reply. I do have one methodology to get an aprox. CO value which is Ostwald Diagram. The problem is that i have to make the curves for each fuel i want to analyze. In combustion theory, you see that CO2 volume is the same as CO volume, they "share" that volume i mean...
  10. MAEC

    Question regarding an efficiency formula and CO levels

    Greetings List: I have on my hands what some consider to be the bible of sugar cane milling process... LA SUCRERIE DE CANNES by E. Hugot. It shows an interesting equation regarding boiler efficiency from the point of view of available heat delivered to the steam. The equation is: eff = Mv/VCS...
  11. MAEC

    Sugar Industry

    Greetings from Guatemala. I´m a "rookie" mechanical & electrical engineer with some experience in sugar industry, energy and exergy analysys and cogeneration cycles for sugar industry. I signed up here mostly for learning purposes since i intend to gather some water tube boiler knowledge... i...

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