Multi Sliding Mode Control with Residual Error Estimation for a Counter Flow Rotary Dryer

Santivarakorn, R.; Radpukdee, Thana

doi:10.1166/asl.2013.5112

Cited by 4 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…while relationship of drying rate model of Hamed's work is convenient for our plant and is suit with the experimental data of this work to find other coefficients. However, the time model for feedback automatic control can be done as in work of R. Santivarakorn and T. Radpukdee [22]. By the counter flow characteristic, the total length of the dyer tube is presented in proportion, represented by the letter Z, while Z = 1 is the whole length of the tube (L) as shown in Fig.…”

Section: Modelmentioning

confidence: 99%

Optimal variables estimation for energy reduction via a remote supervisory control: application to a counter-flow rotary dryer

Sonsiri

Punyakum

Radpukdee

2019

Heliyon

Self Cite

View full text Add to dashboard Cite

This research anatomizes an automatic mode control of a counter flow rotary dryer by variable speed drive technology, to control moisture content of product in an organic fertilizer drying process. Effects of rotary dryer cyclone blower and biogas blower were investigated on a fertilizer production by the 3k factorial experiment technique. Response surface methodology was employed to determine optimum variables. The multiple-response was revealed that the rotary dryer, the cyclone blower, and the biogas blower were 90 %, 48 %, and 92 %, respectively. These values were observed to make the system to consume electricity at the rate of 8.91 kW/h and the product moisture was observed at 18.90 % db. To inspect control system accuracy and accountability, the results obtained from the mathematical model was compared with the data from supervisory control and data acquisition system and with the data from real measurement also. The output responses were the electric power used and the product moisture obtained. The statistical investigation determined the optimization of energy usage.

show abstract

Section: Modelmentioning

confidence: 99%

Optimal variables estimation for energy reduction via a remote supervisory control: application to a counter-flow rotary dryer

Sonsiri

Punyakum

Radpukdee

2019

Heliyon

Self Cite

View full text Add to dashboard Cite

show abstract

“…The motor power (P)used for driving the rotary dryer could be calculated by various methods; however, this equation was calculated as shown below [7] P D L T = (6) Equipment and experimental process.…”

Section: Driving Power Design For the Rotary Dryingmentioning

confidence: 99%

“…The result revealed that for the same conditions, the rotatefluidized dryer had a heat transfer coefficient and drying rate higher than that ofa traditional rotary fertilizer dryer.Arrudaet al [3] had compared thefertilizer rotary dryer using a mathematic model.Fernandezet al [4] had studied the air flow and direction of the rotary dryer used in the fertilizer industry, and Rajribool [5] had studied a mathematical model of a rotary corn dryer, for which the suitable drying condition was determined. Suntivarakorn and Thana [6] had studied a multi sliding mode control with residual error estimation for a counterflow rotary dryer.From theliterature reviews, it was found that most of the heat source for drying was generatedby electrical energy. There had been few studies of the utilization of waste heat as a source for rotary dryer in a pig farm.…”

Section: Introductionmentioning

confidence: 99%

Development and Construction of a Fertilizer Rotary Dryer Using Waste Heat from an Electrical Generator in a Pig Farm

Namwong

Suntivarakorn

Treedet

2013

AMR

View full text Add to dashboard Cite

This research presents a study of the design and construction of a fertilizer rotary dryer in a pig farm which used waste heat at 400 degree Celsius from an electrical generator. The designed rotary dryer consisted of two pipes with lengths of 10 meters. These pipes consisted of a drying and a cooling pipe, each with a diameter of 0.5 meter. The power was supplied by two 5 horse power motors, and 2 horse power blowers were used to suck in hot and cool air for drying. The fertilizer, with an initial moisture content of 55-60 %db, was examined. Three parameters were varied to study the optimal condition of drying. These were rotary speed, degree of tilt angle and air flow rate. The rotary speed was varied at 10, 15 and 20 RPM, the degree of tilt angle was set at 1, 3 and 5 degrees, and the air flow rate was varied at 60, 120 and 180 cubic meters per hour. From the experiment, the result revealed that the condition of 1 degree of tilt angle, 10 rpm of rotary speed and an air flow rate of 180 cubic meters per hours were the optimal conditions for drying the fertilizer. The moisture in the fertilizer was reduced from 57.84 %db to 12.45 %db. The drying rate was 56.93 kg/h, and the thermal efficiency was 79.24 %. The energy consumption was 328.64 kWh/ ton. The capacity of the designed rotary dryer was 3 tons/day which is three times more than the amount of the traditional drying method. If the cost of the rotary dryer is 450,000 Baht, the payback period will be 3.73 months.

show abstract

“…Product moisture control with minimal energy consumption plays a major rule in competitiveness of a fertilizer production company. Even though, some sophisticated control technology [4,6] can be done to meet this goal, an initial optimal point for the controller still need for transient process improvement. Thus this work just use a simple 3 k factorial design for seeking an optimal initial referent point to start a fertilizer drying process.…”

Section: Introductionmentioning

confidence: 99%

“…In the above organic fertilizer production process, a rotary dryer is a suitable device to remove water from wet starting material in situation of large mass production and very much water content in product [4]. In the Fig.…”

Section: Introductionmentioning

confidence: 99%

Effect of Biogas Volume Flow Rate and Burner Temperature on Moisture Content of Organic Fertilizer in a Rotary Drying Process

Sonsiri

Radpukdee

2015

AMR

Self Cite

View full text Add to dashboard Cite

Different factors can influence the moisture content of product in an organic fertilizer drying process. In this study, biogas volume flow rate and burner temperature were systematically studied in an effort to ascertain their effect on the moisture content of organic fertilizer grain that had been subjected to rotary drum indirect heating procedures. It was found that these two factors did major effect on the moisture content of organic fertilizer in a rotary drum drying process. Additionally, it was also discovered that acceptable organic fertilizer moisture content occurred when the rotary drum drier utilized both the biogas volume flow rate of 0.058 m3/min. in combination with the drying temperature of 500°C while the percentage of biogas blower and burner operation were reduced by 22.67 % and 9.1%, respectively.

show abstract

Multi Sliding Mode Control with Residual Error Estimation for a Counter Flow Rotary Dryer

Cited by 4 publications

References 0 publications

Optimal variables estimation for energy reduction via a remote supervisory control: application to a counter-flow rotary dryer

Optimal variables estimation for energy reduction via a remote supervisory control: application to a counter-flow rotary dryer

Development and Construction of a Fertilizer Rotary Dryer Using Waste Heat from an Electrical Generator in a Pig Farm

Effect of Biogas Volume Flow Rate and Burner Temperature on Moisture Content of Organic Fertilizer in a Rotary Drying Process

Contact Info

Product

Resources

About