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  • Users: Welchita
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  1. Welchita

    STEEL INDUSTRY

    Hello There! In an undustrial environment,when you have a lots of heat, which are the best and the more efficient ways/modes for getting out quite enormous quantities of heat ? Welch
  2. Welchita

    CORROSION TABLE RELATED TO CHEMICAL SUBSTANCIES

    Hi Fellows! I have a pharmacy lab, which I have to treat in terms of ventilation/hvac. The substancies which are manipulated in process are Glicerine´ eters acetone benzoico acid boric acid borat sodio tartaric acid sodio bicarbonat eosine etanol dietilic eter sidio hipoclorit iodine potassic...
  3. Welchita

    VENTILATION SYSTEMS IN PHARMACY INDUSTRY

    Hello Fellows! Suppose you have a not so big pharmacy laboratory of a middle technology level. On account of a manipulation of several quimical substancies in close rooms, which must be ventilated at the regulamentaries air rates. Do you know which usual norms/rules are applied? What are the...
  4. Welchita

    HEAT TRANSFER COEFFICIENTS FLUID TO FLUID

    Hi There! When I was in the last university year, we use to change a lots of data and at that time I gave a very complete list (without keeping a copy for myself) of heat transfer coefficients in all kinds of heat-exchangers, mainly related to serpentines to heat industrial dying baths. I...
  5. Welchita

    HEAT RECOVERY SYSTEMS

    Hi Fellows! I have this real case: Some years ago I draw and have supervised the refrigerating system installation in printing industry (serving as well as climatization system for the office-building) to serve a high rotating speed machine, which has an hot camera/room in its top to dry and...
  6. Welchita

    Absorption chiller against common chiller + ice rink

    Hi Fellows! Suppose a retroffing operation where a common DX chiller is selected to serve in an existingg installation, giving its sensive power at 7 - 12 ºC in the afternoon and during the night (low electrical rates period), working to charge a ice-rink at -6ºC ~ -5ºC for coping the next...
  7. Welchita

    Stainless Stell for Srings

    Hi Fellows Just looking for the best stainless steel choice for springs to perform medium and heavy duty. Please, any guidance will be very appreciated. Does anybody knows any directory for the quimical and physical/mechanical stainless steels properties, any source, link, site? Thanks a...
  8. Welchita

    HEATING SYSTEM FOR A CHURCH

    HI Folks! Suppose an existing church, located at a 40º North Latitude site above, I mean, a building with high and strong thermal inertia/material, and an open space as well. How do you make an energy efficient approach to choose the type and how to design an proper heating system ? Also, the...
  9. Welchita

    MULTI-FUNCTION HEAT PUMP,MFHP

    A very classic question: I would like to know what the Forum has to say about the MFHP, (air cooling/heating + hot water production from the same unit/equipment) in special, those with the cooling effect power between 5 and 15 kW (or between 17,000 ~ 50,000 BTU/h). Any related comments, data...
  10. Welchita

    Multi-Effect Heat-Pumps or MEHP

    Hello there! A very classic question: I would like to know what the Forum has to say about the MEHP, (air cooling/heating + hot water production from the same unit/equipment) in special, those with the cooling effect power between 5 and 15 kW (or between 17,000 ~ 50,000 BTU). Any related...
  11. Welchita

    AIR FLOTATION SYSTEMS

    Hi there! I' doing a survey on air flotations systems in order to optimize ours, which has started-up three weeks ago, (dealing with mixed used-oils/water. It has been working at 92 % of stated project data. I intend to explore all the system possibilities, and the control procedure as well. Is...

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