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nµ¥ Abstarct The purpose of this research is to promote agriculturists who plant crops in Chaehom district, Lampang province to distribute seeds for wholesale companies. The seed washing machine with mesh bag can save time and water when washing seeds and water can be also recycled. This machine helps agriculturists wash seeds at home instead of washing them in the canals as before. This can reduce water pollution. Furthermore, the machine can be used with various kinds of seeds such as pumpkin, cucumber, water melon and other crops as ginger, galingale, sweet potato and peanut. From the test of the machine efficiency by washing pumpkin seeds was that the machine can wash 100 kg. of pumpkin seeds per 1 hour and 150 kg. per hour of peanut seeds. Compare with the old washing procedure of agriculturists in Sobfa village, Chaehom district, Lampang province was that in 10 minutes the old procedure used 200 litters of water while the machine used 180 litters of water in 3 minutes and water ÊÒí ¹Ñ¡§Ò¹¡Í§·¹Ø ʹѺʹ¹Ø ¡ÒÃÇÔ¨ÂÑ ªØ´â¤Ã§¡Òà “¾Ñ²¹Ò¤ÇÒÁÊÒÁÒö¡ÒÃÇ¨Ô ÂÑ ã¹Ãкº¡ÒÃÈÖ¡ÉҢͧÁËÒÇ·Ô ÂÒÅÂÑ ÃÒªÀѯáÅÐÍÒªÕÇÈÖ¡ÉÒ”
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°¨µ ¼o°Â®oÃ¥¡¨´Îµµ ªµ¤¦o°Ê· µÎµÊ ¦³µ¥ªµ¤¦o°Â´ ´ µ¤µ¦µÎ ÅÄo µÅo¦· µÎ ε´ µ¦°Â®o ªµ¤Êº ¡¦· ªµ¤¦o°·Ê µ¦¡µªµ¤¦o°Â´´ Abstract The study about implementation of waste heat from the condenser to dry wood smoke pepper which designing and creation the dryness system by force convection heat transfer. The experiment was using two types of Thai peppers calls “Yod Son” and “Jinda” type. The weight of two types was respectively 6,000 grams. There was analyzed the changing of moisture quantity, heat rate, drying capacity, including appropriate of dying economic. The system consisted of drying oven capacity of 0.154 cubic meter, and tubes materials for heat exchange. The air flowing rate in the oven was 0.07 kilogram per second. The average temperature status for drying was 55 – 65 degree Celsius. Timing of drying was 8 hours. The experimental result found respectively that the average heat rate of exhaust gas was 1.5 – 2.2 kilowatt, the average heat rate of drying was 0.4 – 1.5 kilowatt, and of drying oven was 10 – 45 %. The average effectiveness of heat exchange was 0.35 – 0.37 and the oven could dry Thai pepper for 6,000 grams each time. The weight of Yod Son type was decreased to 1,950 grams and Jinda type was decreased to 1,970 grams. The economic analyzing found that the break-even time of drying should be at 0.7 years, the capital of dried chili was 98 Baht/kilogram, color of chili after drying was not too dark and met the market requirement, and the oven could be used. Keyword Drying, Moisture, Thai peppers, Waste heat, Force convection heat transfer Êíҹѡ§Ò¹¡Í§·Ø¹Ê¹ÑºÊ¹Ø¹¡ÒÃÇ¨Ô ÂÑ ªØ´â¤Ã§¡Òà “¾²Ñ ¹Ò¤ÇÒÁÊÒÁÒö¡ÒÃÇÔ¨ÂÑ ã¹Ãкº¡ÒÃÈ¡Ö ÉҢͧÁËÒÇÔ·ÂÒÅÂÑ ÃÒªÀ¯Ñ áÅÐÍÒªÇÕ ÈÖ¡ÉÒ”
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°Â°µ·¥r Á¨¸É¥16.76 MJ/m2 Day ¡ªnµ°»®£¼¤·£µ¥ÄÁµ°¼» 63 °«µÁ¨Á¸¥ µ¤µ¦°ÎµÂ®¤¼Å¦o¤´ ÄoÁª¨µ 15 ´ÉªÃ¤ εÁʺ°ÂÁ¸¥ªÂ¨³¨µÂÁ¸¥ªÄoÁª¨µ 4 ´ÉªÃ¤ ¨³°¡¦·ÄoÁª¨µ 20 ´ÉªÃ¤ ¨³µ µ¦¦³Á¤· »£µ¡Ã¥¼oÁ¸¥É ªµÂ¨³¨»¤n ª· µ®· »¤ ¤¸nµ IOC Ánµ´ 0.835 εε´ Áµ°¡¨´ µÂ°µ· ¥r Á¦É°º °Â®o µ¦¨ªµ¤Êº ª· µ®·»¤ Abstract The purpose of the research was to develop a knock down solar energy oven and to promote using the solar energy for baking the farm produces which is cleaner in production process of the business community group. The solar energy oven consists of 2 parts; those are 1.72 cubic meters and a 12 square meter heated plate. The oven structure made from local material and could be knocked down in pieces that make it easier and more convenient to move from place to place. It takes only 12.27 minutes and 15.17 minutes respectively to install the oven From the 5 days (from 12-16 October 2009) records of inside and outside the oven from 10.00-15.00 at Pasang Community college, Pasang, Lumpoon with the average saturated of the sun at 16.76 MJ/m2 Day. It was found that the highest temperature inside the oven was 63 degree Celsius that took 15 hours to bake nonfat crispy pork skin, 4 hours to bake dried meat and dried fish and 20 hours to bake chili. The experts and the business community group have evaluated the quality and the result of the IOC was at 0.835. Keywords solar oven, knock down 1. ε Á¬¦¦Îµ
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