Brief Description of the Specialization
The field of Agricultural & Bio-Processing (ABPRO) covers the gamut of handling and storage of crops in fresh form from farm to market, to processing of agricultural materials into food, feed products, and industrial products. Loss reduction, quality retention, improved efficiency, and cost effectiveness of the various postharvest and processing operations are prime considerations in development of technologies for ABPRO. Coursework covers heat, mass, and momentum transfer, crop processing operations, physical properties of agricultural materials, and refrigeration systems. Students are also encouraged to enroll in elective courses in other colleges of UPLB to broaden their perspective and increase their understanding of biosystems. These electives generally include courses in animal science, postharvest horticulture, agricultural economics, and food science.
Postharvest Engineering – high-value commercial crops include fresh fruits, vegetables, and cutflowers. Due to their inherent perishability, a significant fraction of the volume produced yearly is lost due to improper handling, inappropriate packaging, and inadequate storage and transport facilities. More distant production areas, greater need for food safety, and stricter quality requirements all pose an increasing challenge to agricultural and biosystems engineers. This area of specialization of Agricultural Engineering is involved in the sorting and grading, packaging, temperature management, transport, and short-term storage of high-value crops. Development of equipment, facilities, and protocols to reduce losses, extend shelf life, and maintain quality of perishable crops in fresh form are the main objectives of this field of specialization.
Crop Processing – involves the transformation of raw agricultural materials into intermediate or finished products such as animal feed, crude oil extracts for biofuel production, industrial fibers. This field of specialization involves the determination of physical properties of raw materials, development of size reduction and extraction equipment and processes, evaluation of processed products, and drying and dehydration methods. Special emphasis is placed on drying and milling of Philippine crops such as rice and corn.
Food Engineering – is the integration of the fields of engineering, chemistry, and microbiology for developing solutions to processing of food materials into finished products with added value and a stable shelf life. This field of specialization involves the development of new food products, pharmaceuticals, food processing machinery, packaging materials and edible coatings, processing protocols, and treatments for processing plant waste.
Energy Engineering – involved in biomass and other alternative energy resource development (calculation of energy potentials, policy formulation, status of the industry), biofuels potential and sustainability, energy conservation and efficiency measures, and theory and design of combustion systems for agricultural commodities.
Thermal Processing – principles and application of psychrometry in postharvest engineering and crop processing applications, design of refrigerated storage systems, and thermodynamic analysis of postharvest and thermal systems.
Enrollees of the program may come from among the graduates of food science and technology, agricultural engineering, and chemical engineering programs of UPLB, as well as other universities offering undergraduate programs in these fields.
This field of specialization gives students perspectives on both engineering and biological aspects of a problem in handling and processing a crop into a higher-value product. This allows them to develop solutions that are innovative, appropriate, and sustainable. Hence, they are well prepared for careers in postharvest handling and storage of durable and perishable crops, food engineering, animal feed production, or the biofuel industry. Note that all these areas are expanding nationally as well as globally as food safety and security, and scarcity of oil become issues of concern.
Requirements and Mechanics to Graduate
The PHD AENG includes a minimum of 37 units, these are: 12 units of major courses; 6 units in each cognate field; 1 unit of seminar and 12 units of dissertation.
If only one cognate field is chosen, the minimum major and cognate courses must be 15 and 9 units, respectively.
AENG 201, AENG 299 is required for Agricultural Power and Machinery and Agricultural Process Engineering.
AENG 201. Advanced Engineering Mathematics (3). Formulation and solution of differential and systems equations in engineering. 3 hrs (class). PR. MATH 28 or its equivalent. (1)
AENG 202. Engineering Similitude (3). Theory of similitude and its application to engineering models. 5 hrs (2 class, 3 lab). PR. COI. (2)
AENG 203. Heat, Mass and Momentum Transport (3). Principles of transport phenomena and their application to agricultural, biological, and food systems. 3 hrs (class). PR. AENG 111 or COI. (2)
AENG 204. Advanced Thermodynamics (3). Thermodynamic theory of irreversible processes. Selected applications in physiological unit operations and separation processes. 3 hrs (class). PR. ENSC 14 or CHEM 102; MATH 151. (1)
AENG 205. Numerical Methods in Thermo-Fluid Engineering (3). Finite differences, finite elements analysis and application in agricultural process engineering. 3 hrs (class). PR. AENG 201 or COI. (2)
AENG 225. Advanced Heat Transfer (3). Analysis and application of steady state and transient heat conduction; radiant heat transfer; radiation networks; spectral properties, natural and forced convective transfer of heat and mass in boundary layers and in fluids with phase change. 3 hrs (class). PR. ENSC 14a. (2)
AENG 226. Convective Heat Transfer (3). Equations of convective heat transfer, solutions to laminar and turbulent forced convection; free and mixed convective transfer; property variation; condensation and heat transfer in porous media. 3 hrs (class). PR. AENG 225 or COI. (1)
AENG 232. Drying, Storage, and Preservation of Cereal and Forage Crops (3). Systems for drying, storage and preservation of cereal and forage crops; theory of heat and mass transfer in drying and its relation to quality control. 5 hrs (2 class, 3 lab). PR. COI. (1)
AENG 233. Agricultural Process Engineering (3). Design and operations of systems for drying and storage, material handling and refrigeration; other unit operations in the processing of agricultural products. 5 hrs (2 class, 3 lab). PR. COI. (2)
AENG 235. Agricultural Process Systems Analysis and Design (3). Modeling agricultural process equipment; systems simulation; economic analysis of process systems. 3 hrs (class). PR. AENG 233. (1)
AENG 236. Physical Properties of Agricultural Materials (3). Measurement and application of mechanical, rheological, thermal and electrical properties of agricultural materials. 5 hrs (2 class, 3 lab). PR. AENG 233 or COI.
AENG 237. Process Control in Agricultural Process Engineering (3). Control systems analysis and design; simulation for process control. 3 hrs (class). PR. AENG 270 or COI. (2)
AENG 238. Drying and Dehydration of Agricultural Crops (3). Principles of drying and dehydration, drying methods; design and operation of drying sytems. 3 hrs (class). PR. AENG 232 or COI. (1)
AENG 240. Advanced Water Resources Planning (3). Factors and issues in water resource planning; application of systems methodologies. 3 hrs (class). PR. COI. (1)
AENG 241. Research Methods in Land and Water Resources Engineering (3). Quantitative and qualitative research methods; validity and reliability considerations in research design; analytical tools and techniques; computer-oriented approaches; application to land and water resources engineering problems. 3 hrs (class). PR. COI. (1)
AENG 242. Water Management (3). Irrigation practices as affected by soil properties and topography; interrelations of irrigation with tillage, fertility and fertilizer applications; moisture control during germination and harvest; irrigation for water conservation; influences of salinity and drainage on water management. 3 hrs (class). PR. COI. (1)
AENG 243. Soil and Water Conservation (3). Agricultural hydrology; flood control and structures; diversion and waterways; relationship between water management and soil-water conservation; land clearing, development, and formation. 3 hrs (class). PR. COI. (2)
AENG 244. Groundwater Hydrology (3). Groundwater as a source of water supply, occurrence and distribution, flow hydraulics, aquifer and well characteristics, well drilling, discharge, development, maintenance, and recharge.
Pumps and pumping test analysis. 3 hrs (class). PR. ABE 71 and MATH 26 or 36. (2)
AENG 245. Drainage Engineering (3). Dynamics of soil water; rainfall-runoff relations; seepage analysis; soil permeability measurements; generalized flow equations; design criteria; quantitative determination of drainage spacing and depth; subsurface and open ditch drainage design. 3 hrs (class). PR. ABE 73 and MATH 151. (1)
AENG 247. Water Quality Control Engineering (3). Water and waste water characteristics; design and operation of water and waste water treatment systems; water reclamation and reuse. 3 hrs (class). PR. ABE 177 or ChE 180 or COI. (2)
AENG 248. Erosion and Sediment Transport (3). Theories and models of erosion and sediment transport; controlmeasures; soil and water conservation planning. 3 hrs (class). PR. COI. (1)
AENG 249. Statistical Hydrology (3). Frequency analysis of hydrologic events; hydrologic models; single and multisite generation of synthetic sequences; data augmentation; flood estimation; application studies. 3 hrs (class). PR. ABE 71 or COI. (2)
AENG 260. Experimental Stress Analysis (3). Elasticity, brittle-coating methods, photoelastic methods, strain measurement methods and related instrumentation; principles of testing and inspection of engineering materials. 5 hrs (2 class, 3 lab). PR. ENSC 13 or its equivalent. (1)
AENG 261. Agricultural Machinery Design (4). Design and testing of agricultural machinery to meet their functional and economic requirements. 8 hrs (2 class, 6 lab). PR. COI. (2)
AENG 262. Advanced Soil Mechanics of Tillage and Traction (3). Soil failure theories, traction, compaction and flotation on agricultural soils; tillage tool design. 5 hrs (2 class, 3 lab). PR. ABE 145 or ABE 180 or COI. (1)
AENG 263. Crop Establishment Engineering (3). Dynamics of seeding and transplanting; soils seed and seedlingmachine interactions. 5hrs(2 class,3 lab) PR.
ABE 145 or ABE 180 or SOIL 1. (1,2)
AENG 264. Pesticide Application Equipment (3). Design, operation and the efficient and safe use of pesticide application equipment for crops. 5 hrs (2 class, 3 lab). PR. ABE 42. (1)
AENG 265. Design of Harvesting and Threshing Machinery (3). Theory of operation of and design of harvesters and threshers 3 hrs (class). PR. ABE 42 or COI. (2)
AENG 266. Advanced Agricultural Energy and Power Engineering (3). Conventional and non-conventional energy sources; engine test on dynamometers; design of alternative power sources. 5 hrs (2 class, 3 lab). PR. ABE 41 or COI. (2)
AENG 270. Instrumentation for Engineering Research (4). Instruments and principles of measurement and control of temperature, humidity, strain, moisture content, and pressure and fluid flow in engineering process; principles of digital measurements. 6 hrs (3 class, 3 lab). PR. EE 1 or its equivalent. (2)
AENG 290. Special Problems (1-3). May be taken twice provided that total number of units to be credited to the student’s program will not exceed 4 units. PR. COI. (1,2)
AENG 291. Special Topics (1-3). May be taken twice provided that total number of units to be credited to the student’s program will not exceed 4 units. (2)
AENG 296. Special Problems in Agricultural Engineering (2). May be taken twice for additional credits not to exceed a total of 6 units. PR. COI
AENG 299. Graduate Seminar in Agricultural Engineering (1). May be taken twice.
AENG 300. Master’s Thesis (6). (1,2,S)
AENG 400. Doctoral Dissertation (12).
Key Person to contact: Division Chairman
Contact numbers: +63 49 536 3291