Parametric study of a greenhouse by using Runge-Kutta methods

This communication presents the analysis for a greenhouse using Runge-Kutta methods. The energy balance equations have been written considering the ef fects of evaporation from the plant, conduction through the ground, ventila tion, etc. The parametric study has also been performed to find the effects of various parameters, namely number of air changes/h, transmissivity (t), heat capacity of plants and movable insulation on the plant and enclosure room air temperature. Numerical computations have been performed for a typi cal day in the month of March for Delhi climatic conditions. It is observed that there is significant reduction of plant and room air temperatures due to an increase in number of air changes, the heat capacity of plants and t he movable insulation. (C) 1999 Elsevier Science Ltd. All rights reserved.