Al-Helal, I. M. 2007. Effects of Ventilation Rate on the Environment of a Fan-pad Evaporatively Cooled, Shaded Greenhouse in Extreme Arid Climates. Applied Engineering in Agriculture. USA. Vol. 23(2): 221-230. Abstract
Al-Helal, I. M. 2004. Environmental Control for Poultry Buildings in Riyadh Area of Saudi Arabia. Journal of King Saud Univ. Agric. Sci., Vol 16 (1): 87-102. Abstract
Al-Helal, I. M., Al-Abbadi, N. and Al-Ibrahim, A. 2004. A study of fan-pad performance for a photovoltaic powered greenhouse in Saud Arabian summer. International Agric. Eng. Journal 13 (4): 113-124. Abstract
Al-Helal, I. M. and I. M. Al-Musalam. 2003. Influence of shading on the performance of a greenhouse evaporative cooling system. Arab Gulf Journal of Scientific Research. Arabian Gulf University, Vol. 21 No. (1):71-78. Abstract
Al-Helal, I. M. 2002. Water Consumption by Fan-and-Pad Evaporative Cooling System under Arid Climate Conditions. Arab Universities Journal of Agricultural Science, Ain Shams University, Vol. 10 No. (2):429-440. Abstract
Al-Helal, I. M. 2001. A survey Study of Cooling Pads Clogging Problem for Greenhouses and PoultryBuildings in Central Region of Saudi Arabia. Agricultural research center – College of Food and Agric.Sci., King Saud Univ. Research Bulletin No. 105. Abstract
Al-Helal, I. M. and H. S. Al-Tweejre. 2001. Evaporative cooling for Palm Dates Fiber Pads and Cross-Flutted Cellulose Pads under Arid Conditions. Misr Journal of Agric. Eng., Vol. 18 No. (2): 469-483. Abstract
Coferences
Al-Helal, I. M. and T. H. Short, 1999. A CFD study of naturally and fan ventilated greenhouses in extreme arid climates. ASAE paper no. 995011. ASAE, St. Joseph, MI 49085. Abstract
Al-Helal, I. M. 1999. Prediction of reducing water used for greenhouses in arid regions. The third conference on desertification and environmental studies beyond the year 2000. Prince Sultan Research Center for Environment,Water and Desert , King Saud University, Riyadh.
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Al-Helal, I. M. 1999. Implementation of a nutrient uptake models for growing New Guinea impatiens. The third conference on desertification and environmental studies beyond the year 2000. Prince Sultan Research Center for Environment,Water and Desert , King Saud University, Riyadh.
Al-Helal, I. M. 2000. A survey study of environmental control practices for poultry in central regions of Saudi Arabia. In: Proceedings of the sixth international livestock environment symposium, Kentucky, USA. VI: 219-225. Abstract
Alhamdan A. M. and Al-Helal, I. M. 2004. A Study of Mechanical Properties Deterioration for Polyethylene Covering of Greenhouses in Saudi Arabia. International Symposium on Greenhouses, Environmental Controls and In-house Mechanization for Crop Production in the Tropics and Sub-Tropics, Cameron Highlands, Pahang, Malaysia.
Al-Helal, I. M., Al-Abbadi, N. and Al-Ibrahim, A. 2004. A Study of Evaporative Cooling Pad Performance for Photovoltaic Powered Greenhouse. International Symposium on Greenhouses, Environmental Controls and In-house Mechanization for Crop Production in the Tropics and Sub-Tropics, Cameron Highlands, Pahang, Malaysia. Abstract
Al-Ibrahim, Naif Al-Abbadi, and Al-Helal, I. M. 2004. PV Greenhouse System: System Description, Performance and Lesson Learned. International Symposium on Greenhouses, Environmental Controls and In-house Mechanization for Crop Production in the Tropics and Sub-Tropics, Cameron Highlands, Pahang, Malaysia. Abstract
Al-Helal, I. M. 2005. Cooperation with the private sector in greenhouses area. Conference of university-privte sector partnership in research and development. King Saud University, Riyadh. April 10-12 2005. Abstract
Al-Helal, I. M. 2006. Development and implementation of a control system for staged cooling in greenhouses. International Symposium Advances in Soil and Soilless cultivation under protected environment, February 19-24, 2006. Agadir, Morocco. Abstract
Al-Helal, I. M. and A. M. Alhamdan. A comparison of different storing systems for dates: Performance and operation. The Fourth Symposium on Date Palm in Saudi Arabia. King Faisal University, Hofuf, Kingdom of Saudi Arabia, 5-8 May 2007.
Al-hamdan A. M. and Al-Helal, I. M. Effect of storing system and duration on phaysical and mechanical properties of dates. The Fourth Symposium on Date Palm in Saudi Arabia. King Faisal University, Hofuf, Kingdom of Saudi Arabia, 5-8 May 2007.