Teitel, M. and Tanny, J. (1998)
Radiative heat transfer from heating tubes in a greenhouse, Journal of Agricultural Engineering Research, Vol. 69, pp. 185-188.

---

ABSTRACT
The effect of the location of heating tubes in a greenhouse on the amount of heat directly radiated from a tube to the canopy is studied. A simple model is presented in which a radiative heating efficiency is defined and calculated for various tube positions and tube surface temperatures. The results show that the best tube position from a radiative point of view is near the crop at its mid-height. It is also shown that at low tube surface temperatures, the radiative heating efficiency increases sharply with the tube surface temperature.

Back to J. Tanny