Building Temperature- Selection
Building Temperature- Selection
(OP)
I am selecting the operating temperature for some equipment e.g. pumps inside a building.
The external temperature is 105. The plant building is ventillated mechanically (and no A/C) with intake at +2m and outlet at +15m. There is are several industrial furnaces inside the plant on the ground level.
I was told to assume a higher temperature inside the building on say 115 so that there is a temperature gradient for heat dissipation (which makes sense).
However (in my opinion) to would assume 115 deg as the operating ambient temperature is too conservative.
Would there be any good reasons why I can select 105 instead of 115 from HVAC point of view? Large air flow? I am not very experienced in this field so appreciate advice.
The external temperature is 105. The plant building is ventillated mechanically (and no A/C) with intake at +2m and outlet at +15m. There is are several industrial furnaces inside the plant on the ground level.
I was told to assume a higher temperature inside the building on say 115 so that there is a temperature gradient for heat dissipation (which makes sense).
However (in my opinion) to would assume 115 deg as the operating ambient temperature is too conservative.
Would there be any good reasons why I can select 105 instead of 115 from HVAC point of view? Large air flow? I am not very experienced in this field so appreciate advice.





RE: Building Temperature- Selection
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RE: Building Temperature- Selection
Naturally when you have only ventilation your inside temperature will be few degrees above the prevailing ambient.The increase in temperature from ambient depends on the heat load(dissipation) and air change and ambient itself.
The best way to ventilate and cool is to use the Adiabatic cooling or Indirect direct Evaporative cooling where in you can maintain lower temperature also.
RE: Building Temperature- Selection
It is impossible to achieve ambient conditions in an enclosed space with internal heat gains. You can have a slightly higher temp, but airflow will increase greatly to achieve that.
If you can handle the 10deg above ambiant, go with it. If not, you'll need some form of cooling (the adiabatic or 'wet' cooling recommended above is a low cost method).
RE: Building Temperature- Selection
By using IDEC system we have cooled huge factory with 1800 KW machine load to maintain at 26 degree C when the ambient is 42 degree C (Dry Bulb) and 19 degree C (wet Bulb).