Search Result of "Somchart Soponronnarit"

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งานวิจัย

ศึกษาการอบแห้งของข้าวเปลือกนึ่งโดยเครื่องอบแห้งกระแสชน (2015)

หัวหน้าโครงการ:รศ.ดร.สมเกียรติ ปรัชญาวรากร

ผู้ร่วมโครงการ:Imgดร.รติยา ธุวพาณิชยานันท์, รองศาสตราจารย์, Imgรศ.ดร.สมเกียรติ ปรัชญาวรากร

แหล่งทุน:สำนักงานกองทุนสนับสนุนการวิจัย

ผลลัพธ์:วารสาร (3) ประชุมวิชาการ (2)

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ผลงานตีพิมพ์ในวารสารวิชาการ

Stabilization of rice bran via different moving-bed drying methods

ผู้แต่ง:ImgKanda Rodchuajeen, ImgDr.CHALIDA NIAMNUY, Associate Professor, ImgMrs.Chulaluck Charunuch, ImgSomchart Soponronnarit, ImgSakamon Devahastin,

วารสาร:

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:แนวทางการอบแห้งต้นหอมสับ

ผู้เขียน:ImgManit Sukjindasatean, ImgSomchart Soponronnarit, ImgSomkiat Prachayawarakorn

สื่อสิ่งพิมพ์:pdf

Abstract

The object of this paper was to investigate strategies for drying spring onion by considering both experimental and simulated results. Product quality, drying capacity and energy consumption were taken into consideration. It was concluded that drying should be devided into 3 stages. In the 1st stage, drying air temperature was 80?C, specific air flow rate was 33.9 m3/min.kg dry matter and drying time was 0.5 h. In the 2nd stage, drying air temperature and drying time were kept unchanged but specific air flow rate was decreased to 13.5 m3/min.kg dry matter. In the final stage, drying air temperature was decreased to 72?C, specific air flow rate was also decreased to 6.8 m3/min.kg dry matter. Following these three stages, specific primary energy consumption was 6.17 MJ/kg H2O evap., drying time was 2.65 h and product quality was maintained.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 028, Issue 4, Oct 94 - Dec 94, Page 602 - 607 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การทดสอบการอบแห้งข้าวเปลือกแบบในถังเก็บและแบบเป็นงวด : คุณภาพผลิตภัณฑ์

ผู้เขียน:ImgSomchart Soponronnarit, ImgPetchara Preechakul

สื่อสิ่งพิมพ์:pdf

Abstract

This paper described the experiments on in Store and batch drying of paddy under tropical climate like Bangkok. It was found that in-store drying was technically feasible and the quality of paddy after drying was very good. Its quality was also attractive when it was dried in batch providing that drying air temperature was appropriate.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 024, Issue 3, Jul 90 - Sep 90, Page 367 - 377 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Development of a Commercial Scale Vibro-Fluidized Bed Paddy Dryer)

ผู้เขียน:ImgSomboon Wetchacama, ImgSomchart Soponronnarit, ImgWuttikon Jariyatontivait

สื่อสิ่งพิมพ์:pdf

Abstract

The objectives of this research were to design, construct and test a prototype of vibro-fluidized bed paddy dryer with a capacity of 2.5–5.0 tons/h. Experimental drying conditions were: air flow rate 1.7 m3/s (1.9 kg/s), bed velocity 1.4 m/s, average drying air temperature 125–140?C, residence time of paddy approximately 1 minute, bed height 11.5 cm, fraction of air recycled 0.85 (1.6 kg/s) and vibration of intensity 1 (frequency 7.3 Hz and amplitude 5 mm.). It was found that moisture content of paddy was reduced from 28 to 23 % d.b. at a feed rate of 4821 kg/h. Electrical power consumption and average diesel oil consumption were 9646 W and 17.6 1/h, respectively. Specific primary energy consumption was 6.15 MJ/kg-water evap. Electrical power of blower motor and vibrator motor was 55 % as compared to electrical power of blower motor used in fluidized bed drying without vibration. For operation of 12 hours/day and 90 days/year, paddy drying cost was 1.50 baht/kg-water evap. (fixed cost 0.50 baht/kg-water evap. and operating cost 1.00 baht/kg-water evap., US$ 1 = 40 baht).

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 034, Issue 3, Jul 00 - Sep 00, Page 423 - 430 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ปัจจัยที่ส่งผลต่อการอบแห้งมะละกอแช่อิ่มในอุโมงค์

ผู้เขียน:ImgPiyarat Noosuk, ImgSomchart Soponronnarit, ImgTipaporn Yoovidhya, ImgAdisak Nathakaranakule

สื่อสิ่งพิมพ์:pdf

Abstract

The strategies for papaya glace’ drying in tunnel were investigated. This experiment was performed at the fourth Royal Project Food Processing Section. The optimum conditions of drying, corresponding mathematical models were also evaluate. The criteria set for this stusy included low drying time, low specific enegy consumption and acceptable qualities of papaya glace’. The drying rate obtained from the model of batch tunnel dryer were close to the experimental ones. From the mathematical models, it was found that the optimum conditions of the first step of dyring for the dimension of papaya glace’ of 3.1x7.8x1.4 cm3 and drying temperature of 70oC were specific air flow of 12 kg/h-kg dry papaya glace’ and air recycled of about 70%. In the second step of drying for the dimension of papaya glace’ of 0.98x0.98x0.98 cm3 and drying temperature of 55 oC, it was found that the optimum drying conditions were specific air flow rate of 10 kg/h-kg dry papaya glace’ and air recycled of about 80%.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 030, Issue 1, Jan 96 - Mar 96, Page 74 - 90 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Continuous Drying of Paddy in Two-Dimensional Spouted Bed)

ผู้เขียน:ImgThanid Madhiyanon, ImgSomchart Soponronnarit, ImgWarunee Tia

สื่อสิ่งพิมพ์:pdf

Abstract

An industrial–scale prototype of spouted bed paddy dryer with a capacity of 3,000 kg/h was constructed and tested. The prototype was shown to be a desirable feature of spouted bed as well as capability of continuous drying and offering consistent results through the testing period. Experimental results showed that the prototype performed well on moisture reduction and milling quality. Head rice yield and whiteness were not significantly changed regardless of using inlet air temperature up to 146?C. At present, feed rate is limited to not exceed 1,000 kg/h and thermal energy consumption is relatively high, i.e. in range of 5.9-8.6 MJ/kg water evaporated. This could be attributed to using of improper blower. The relative results of increasing air velocity and pressure should be studied.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 034, Issue 2, Apr 00 - Jun 00, Page 308 - 314 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Study of Parameters Affecting Drying Kinetics and Quality of Corns)

ผู้เขียน:ImgSomboon Wetchacama, ImgSomchart Soponronnarit, ImgSomkiat Prachayawarakorn, ImgAdisak Pongpullponsak, ImgWuttitat Tuntiwetsa, ImgSuprarat Kositcharoeankul

สื่อสิ่งพิมพ์:pdf

Abstract

The objectives of this research are to investigate factors affecting on drying rate of high moisture corn at high temperature with fluidisation technique and to develop a mathematical model for predicting drying rate. There were three following steps of drying process: 1) rapid drying using fluidised bed dryer at inlet drying air temperature of 130-170?C, 2) corn tempered for period of 40-180 minutes under the same temperature as drying from the step 1 and 3) drying with ambient air. Drying kinetic shows the inlet air temperature and the specific airflow rate significantly affecting the drying rate. Amongst three semiempirical drying equations (Wang and Singh, Page and Lewis), Page’s equation provides the best prediction. This study also aims to study the quality of corn dried in each step. Corn qualities in terms of aflatoxin content, percentages of breakage and stress crack, and colour change have been considered. Experimental results show that aflatoxin content in dried corn does not change. Breakage and cracking depend strongly on final moisture content and are relatively dependent to temperature. Tempering provides the improvement of colour while inlet air temperature has no effect.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 035, Issue 2, Apr 01 - Jun 01, Page 195 - 204 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การศึกษาพารามิเตอร์สำหรับวิเคราะห์การอบแห้งสับปะรดแช่อิ่ม

ผู้เขียน:ImgAree Teanchai, ImgSomchart Soponronnarit

สื่อสิ่งพิมพ์:pdf

Abstract

The objectives of this study are to determine experimentally some properties of pineapple glace such as equilibrium moisture content, moisture diffusion coefficient, density and specific heat. These parameters are useful and necessary for drying analysis. The equations describing these parameters were found out by curve fitting using least square technique. The equilibrium moisture content was determined by static method using saturated salt solution. It was found that equilibrium moisture content decreased with the temperature for relative humidity range from 0-35 percent, but increased with the temperature for relative humidity higher than 45 percent. The equation of Iglesias & Chirife, 1978 was found to be accurate to describe the experimental results. The results of the drying of pineapple glace showed that moisture diffusion coefficient increased exponentially with drying temperature and the effect of air velocity was not significant. The temperature range from 55-65oC was suitable for drying pineapple glace regarding to good quality. For other parameters such as density and specific heat, it was found that the density increased linearly with moisture content in dry basis and specific heat increased linearly with moisture content in wet basis.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 025, Issue 2, Apr 91 - Jun 91, Page 206 - 218 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:แนวทางการอบแห้งสับปะรดแช่อิ่มที่เหมาะสมที่สุด

ผู้เขียน:ImgMarina Nuimeem, ImgSomchart Soponronnarit, ImgBoosya Bunnag

สื่อสิ่งพิมพ์:pdf

Abstract

A mathematical model for pineapple glace' drying based on thermal equilibrium between the drying air and the product was developed. The effect of temperature on product quality was observed. The effect of temperature, air flow rate and traction of air recycled on drying time and energy consumption were also observed. The criteria for optimum drying of pineapple glace' in a cabinet dryer were product quality, drying time and energy consumption. Experimental and simulated results showed that a drying temperature of 65?C, a specific air flow rate of about 11 kg dry air/h-kg dry pineapple glace' and about 0.75 of air recycled should be used.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 027, Issue 1, Jan 93 - Mar 93, Page 79 - 90 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ระบบอบแห้งข้าวเปลือกในโรงสีข้าว

ผู้เขียน:ImgWathanyoo Rordprapat, ImgSomchart Soponronnarit, ImgMontri Wangji

สื่อสิ่งพิมพ์:pdf

Abstract

Appropriate paddy drying systems in large rice mills was investigated to reduce paddy moisture content from 20 %wet-basis to 14 %wet-basis. Rice after milling was also in good quality. In this study, the performance of paddy drying systems in three rice mills with the same types of dryers but different installation and drying operation were investigated. Paddy quality and energy consumption of each dryer in each system were studied. The results obtained were used to find appropriate paddy drying condition and then to design high efficient paddy drying system.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 033, Issue 1, Jan 99 - Mar 99, Page 126 - 133 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การอบแห้งข้าวโพดด้วยเครื่องอบแห้งแบบหมุน : แบบจำลองทางคณิตศาสตร์และแนวทางการอบแห้ง

ผู้เขียน:ImgPaiboon Rodviboonchai, ImgSomchart Soponronnarit

สื่อสิ่งพิมพ์:pdf

Abstract

The objectives of this study are to investigate appropriate operating conditions and to develop a mathematical model for corn drying by a rotary dryer. Experimental results showed that if feed rate, rotating speed, tilt angel of drum or air velocity increased, residence time decreased. Residence time obtained from a developed equation was agreeable with experimental result. A thin layer drying equation confirmed by equations of mass and energy balance could predict drying rate relatively well. Energy consumption varied inversely with hold-up and moisture content of corn. A volumetric heat transfer coefficient depended on hold-up, rotating speed and air velocity. To dry corn with a rotary dryer, a relatively high air temperature and high value of hold-up should be practiced. Drying at a range of low moisture content of corn should be avoided.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 026, Issue 1, Jan 92 - Mar 92, Page 50 - 59 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การศึกษาเปรียบเทียบแบบจำลองทางคณิตศาสตร์ของการอบแห้งข้าวโพด

ผู้เขียน:ImgAdisak Nothakoranakule, ImgSomchart Soponronnarit

สื่อสิ่งพิมพ์:pdf

Abstract

The comparison among the results obtained from two corn drying mathematical models: non-equilibrium model and near-equilibrium model and the one obtained from the experiments was studied. The experiments comprised three strategies: 1) Low air flow rate, high temperature, LFHT (5.5-26.0 m3/min-m3 of corn, 60-90oC) 2) Low air flow rate, low temperature, LFLT (5.5-26.0 m3/min-m3 of corn, 45-55oC) 3) High air flow rate, Low temperature, HFLT (30.0-45.0 m3/min-m3 of corn, 45-55oC). Results are described. The simulated moisture contents obtained from the non-equilibrium model were close to those of experiments in case of LFLT but they were not agreeable very well in cases of LFHT and HFLT. The simulated moisture contents obtained from the near-equilibrium model were a little bit lower than those obtained from the non-equilibrium model in cases of LFHT and LFLT and were nearly the same in case of HFLT. The temperatures calculated from both models were nearly the same but were higher than those of experiments for all drying strategies. The near equilibrium model was more interest to use than the non-equilibrium model because of small difference of results and much less computer time spending about 5 times.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 025, Issue 3, Jul 91 - Sep 91, Page 345 - 357 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การออกแบบและทดสอบการอบแห้งข้าวเปลือกในถังเก็บ

ผู้เขียน:ImgSomkiat Prachayawarakorn, ImgSomchart Soponronnarit, ImgPrasai Chalidapongs, ImgAdisak Nathakaranakule

สื่อสิ่งพิมพ์:pdf

Abstract

The objective of this paper was to design and test of in-store pady drying. Both energy consumption and grain quality were taken into consideration. Economic analysis was also conducted. Experimental results indicated that uniform air flow through paddy bed was achieved. Pressure drop through the grain bed was the most significant. When paddy was dried from 16% to about 14% wet-basis, using an air flow rate of 2.03 m3/min-m3 of paddy, energy consumption was 19 bath/ton, head yield was 11% higher conpared with direct sun drying. Benefit gained from higher head yield was 160 baht/ton. Dry paddy in storage should be ventilated periodically by ambient air, at least one hour each time. Mathematical simulation of paddy drying indicated that energy consumption was 35 baht/ton when paddy was dried from 18% to 14% wet-basis, using an air flow rate of 1.3 m3/min-m3 of paddy. Economic analysis based on mathematical model data showed that in-store drying system yielded higher rate of return compared with interest rate and short pay back period.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 028, Issue 3, Jul 94 - Sep 94, Page 451 - 462 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การรักษาคุณภาพข้าวเปลือกโดยการระบายอากาศเป็นระยะๆ

ผู้เขียน:ImgSomkiat Prachayawarakorn, ImgSomchart Soponronnarit, ImgAdisak Nathakaranakule, ImgSittichai Inchan

สื่อสิ่งพิมพ์:pdf

Abstract

The effect of different storage conditions to paddy quality was observed Chacherngsao Agricultural Cooperative. The ambient air flow rate of 1.6 m3/min-m3 was ventilated through the paddy bulk every month, once a month for 2 hours. The results indicated that the ventilation decreased the temperature in paddy bulk. The quality of paddy stored with intermittent ventilation was better in terms of whiteness but was approximately the same in terms of head yield compared to paddy stored without ventilation.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 029, Issue 4, Oct 95 - Dec 95, Page 486 - 493 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การชะลอความเสียหายของกองข้าวเปลือกชื้นโดยการระบายอากาศ

ผู้เขียน:ImgAthaporn Apivathananukul, ImgSomchart Soponronnarit, ImgTipaporn Ouvithaya, ImgAdisak Nathakaranakule

สื่อสิ่งพิมพ์:pdf

Abstract

The delay of deterioration of wet paddy by ventilation with cool air (15+8?C) and ambient air (30?8?C) was determined. Ventilation was applied in two forms, continuously and intermittently. The initial moisture content of paddy was 21.0, 22.2 and 26.0% wet-basis. Air flow rate used was 0.35 m3/min-m3 of paddy. Paddy could be cooled down to 20?C and to near ambient air temperature within one day by cool air and ambient air ventilation, respectively. The quality of paddy could be maintained at an acceptable level more than one month, either by cool air ventilation or ambient air ventilation. The quality of paddy in terms of whiteness was better for paddy ventilated with cool air.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 030, Issue 3, Jul 96 - Sep 96, Page 351 - 363 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:การป้องกันการเกิดแอฟลาทอกซินในข้าวโพดโดยการอบแห้งในฉางเก็บ

ผู้เขียน:ImgSomkiat Prachayawarakorn, ImgSomchart Soponronnarit, ImgAdisak Nathakaranakule, ImgSittichai Inchan

สื่อสิ่งพิมพ์:pdf

Abstract

The objective of this research was to investigate the prevention of aflatoxin production and energy consumption in the prototype system of in-store corn drying. The air was ventilated periodically through the corn bulk. The experimental results showed that the uniform air ventilated through the corn bulk was accomplished. For corn drying using ambient air, the amount of aflatoxin B-1 production at the end of drying in case of 23.4% wet-basis initial moisture content of corn was higher than that in case of 18.7% and 18.9% wet-basis initial moisture content of corn. To preserve the quality of corn by controlling the amount of alflatoxin, the initial moisture content of corn should not be higher than 19% wet-basis but if initial moisture content of corn was higher than 19% wet-basis, it should be dried to 18-19% wet basis within 2 days and continually dried to 14% wet-basis within 14 days. When corn was dried from 19% to 12% - 13% wet- basis by using ambient air with specific air flow rate of 3.6-4.6 m3/min-m3 of corn, energy consumption was 0.46-0.9 MJ/kg water evaporate and electricity cast was 16-27 baht/ton of corn.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 029, Issue 3, Jul 95 - Sep 95, Page 404 - 415 |  PDF |  Page 

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