Forum FAQ Calendar Forum Actions Mark Forums Read Quick Links View Forum Leaders Forum Good manners

Forum FAQ Calendar Forum Actions Mark Forums Read Quick Links View Forum Leaders Forum Good manners Newspaper Group building construction Entries for construction Newspaper Services and Products Services Products Members Advisors Forum Galleries Contacts expert trv advice What's New? Tags Search RSS Contact Us
Hello, how do you calculate the energy used for ventilation available with only a portion of the data used in the audit? Which of the following data have with each other and subtract doddac feed of final demand came forth. A model of the one I use is Q = 0.34 * deltaT * V, where V is the ventilation air inflow. by converting trv this pattern all the data got nowhere. The data that I have is: Proj ambient temperature: -16 C annual average outdoor temperature: 7.7 C average air inlet temperature: -12.9 C Founded indoor temperature: 20 C air infiltrating: 746.7 m3 / h air infiltration additionally: 134.7 m3 / h Average number trv of air exchanges n 0.6 inlet air vents: 2874.5 m3 / h air removed mechanically: 552.7 m3 / h 64165 internal gains kWh / year building volume: 4823.2 m3 Regards, AG
The ground heat exchanger - the principle of operation, types and price exchanger How to ground heat exchanger? Mechanical ventilation - the benefits and costs of performing ventilation with heat recovery. Operation and selection of ventilation when ventilation in the house works well. Find out what are the symptoms of a defective ventilation, humidifier and ionizer - how to take care of the humidity level ventilation with heat recovery - the basic elements of the ventilation trv What ventilation with heat recovery is different from the gravitational
As for me, add up to myself: Air infiltration: 746.7 m3 / h air infiltration additionally: 134.7 m3 / h air inlet vents: 2874.5 m3 / h This is a complete air to get into the building through the fan. gravity, plus a window trv leaks, etc. You mean external trv temperature for the year. In winter, the heat gains are living + CO, during transitional periods when no work CO, heats the air household income. Do you have a stream, you have delta T, so what's the problem?
Not so much the project as one of the points of the thesis completely unrelated trv to the subject of ventilation and audits, but the promoter requires trv an estimate trv of the loss of heat, and I the day (or actually three) tend to not learn. Anyway, a lot has sat on it and finally it's time to ask others. I met up with a few designs, so I'm not even sure if I chose good, but it seems to me that if ventilation is essential tower, this model is appropriate for the object where people work. And the data itself so it comes with some audit, but what I'm after them and do not know where they came from. A problem was that the air streams give me the appropriate trv total. That is about the average air exchange is no longer taken into account and the removed mechanically?
Oh well. The formula is valid according to the new standard 12831, the heat demand for ventilation. Of course I would here demarcates a period of heating, transient and summer, because that's the most during the winter period we care about this issue because, as is 10-20 degrees dworzu household income is often suffice to maintain 20 degrees in the room. But since we have the annual average is: The sum of the ventilation flow: 3756m3 / h Delta T = 20-7,7 = 12.3 K Q = 0.34 * 12.3 * 3756 = 15,707 kW heat consumption for ventilation purposes: 137593kwh/rok
And is not it better to just take into consideration the heating period, which is 242 days for Gdansk? is also given average temperature of the incoming air, -12.9, which I understand that this is the temperature of the air is flowing into the room, although how such a low value. Well on the results of this audit is given that "design ventilation heat loss: 30316 W", that's how it should be understood? Because there is completely at odds with the Lord and my calculations.
Sprajcior, we are probably the same age, so the not 'Panujmy' trv What course are you studying? Probably trv wager that something of heating and ventilation, so something the likes of environmental engineering. Generally, you're right, because trv I wrote it should be taken into account during the winter, but I did not have the data, and have far shelf with tables, so I waited until this thread will develop your capacity for Gdansk degree = 242 Approx. I could use the average temperature for this time period. -12.9 On the coast it really any at an average of a few / several days during the coldest heating. You probably want to separate the issues to show wear in the worst of conditions, so it will not be taken here. A 30316 is written as design ventilation heat loss in accordance with the nomenclature in naming standard 12831 and it is expected to call at -16 and at ext. 20, but counted for this