Energy input and yield relations for wheat in different agro-climatic zones of Tthe Punjab

Night ventilation has been applied successfully to many passively-cooled or Alow-energy office buildings. This paper investigates the applicability of night Aventilation in air-conditioned office buildings. A thermal and ventilation Asimulation model, together with suitable weather data were used to examine the Apotential for energy savings and/or improved internal comfort conditions by Aapplying night ventilation cooling. It was found that natural ventilation Astrategies could save cooling energy in typical air-conditioned offices. AHowever, the use of mechanical ventilation could lead to increased energy-Aconsumption. If typical offices are modified to incorporate features assisting Athe application of night ventilation, then cooling energy could be saved when Amechanical ventilation is used and further reduced in the case of natural ventilation. Such features would include exposed thermal mass or Aoffices designed to ʹbest practiceʹ guidelines, such as airtight construction Aand minimisation of internal and solar heat gains, (c) 1999 Elsevier Science ALtd. All rights reserved.