The Indian Society of Agricultural Engineers
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गैर-टोरेफाइड पेलेट उत्पादन हेतु बायोमास उप-उत्पादों का प्रसंस्करण
No full textगैर-टोरेफाइड पेलेट उत्पादन हेतु बायोमास उप-उत्पादों का प्रसंस्कर
नवीकरणीय ऊर्जाः भारतीय कृषि के विकास के लिए एक नया दृष्टिकोण
No full textनवीकरणीय ऊर्जाः भारतीय कृषि के विकास के लिए एक नया दृष्टिको
भारतीय कृषि का सौर ऊर्जाकरण - कैसे बैंक सौर ऊर्जा को अपनाने में सहायक हैं
No full textभारतीय कृषि का सौर ऊर्जाकरण - कैसे बैंक सौर ऊर्जा को अपनाने में सहायक है
कृषि क्षेत्र के सतत विकास हेतु नवीकरणीय ऊर्जा का महत्व
No full textकृषि क्षेत्र के सतत विकास हेतु नवीकरणीय ऊर्जा का महत्
Engineering Properties of Ginger Rhizomes in Relation to Design of a Seed Planting Mechanism
No full textGinger is a vital spice and medicinal plant, cultivated extensively in tropical and subtropical regions worldwide. The engineering properties of ginger rhizomes are of paramount importance in the design of seed planting mechanisms. This paper presents a comprehensive investigation into the engineering properties of ginger rhizomes relevant to the design and development of a seed planting mechanism. The ginger rhizomes were classified into three grades based on their size, namely, small (< 35 mm), medium (35-50 mm), and large (> 50 mm). The average length, width, and thickness of the seed rhizomes were observed to be in the range of 31.08-64.22, 23.51-39.94, and 15.91-20.64 mm, respectively. The projected areas for small, medium, and large rhizomes were estimated to be 1609.26, 2651.25, and 4433.92 mm², respectively. The sphericity of the small, medium, and large rhizomes was observed to be 0.73, 0.65, and 0.59, respectively. The angle of repose for rhizome seeds corresponding to small, medium, and large rhizomes was 30.72°, 33.55°, and 38.93°, respectively. The lowest coefficient of friction of 0.31 and 0.39 was observed for stainless steel and mild steel sheets, respectively, while the highest was observed for galvanized iron sheet. The mechanical strength parameters, including penetration, compression, and cutting forces, ranged from 12.70-15.06 N, 110.06 -154.25 N, and 218.50-252.68 N, respectively. The mean value of seed size (44.23 mm), coefficient of friction (0.39), higher angle of repose (42°) and lower cutting force (110.06 N) were considered for the design of a seed planting mechanism. The mild steel sheet was selected for its low coefficient of friction and cost-effectiveness, ensuring smooth seed flow. This study highlights that the size of ginger rhizomes significantly influences their engineering properties, which is crucial for the design of a precise seed planting mechanism
Evaluation of Thermal Resistance of Refractance Window (RW) Drying System and Effect of Drying Temperature on Strawberry Powder Characteristics
No full textThis study investigates the performance of an in-house fabricated Refractance Window (RW) drying system for processing strawberry puree, with a focus on heat transfer dynamics, material properties, and quality characteristics of the dried product. Spectral transmissivity of the Mylar film was measured using FTIR spectroscopy, revealing significant peaks within the wavelength ranges of 2.7-3.69, 5.29-11.16, and 12.44-15.09 µm, corresponding well with the absorption spectrum of water-rich strawberry puree. Thermal resistance components were evaluated, including resistance between water and Mylar film (R1), resistance due to Mylar film (R2), the strawberry puree (R3), and the convective resistance between puree and air (R4). R1 exhibited the highest resistance at 0.653 W⁻¹ m² K, identifying it as the primary bottleneck for heat transfer. Conversely, the strawberry puree posed minimal resistance (R3 = 0.00162 W⁻¹ m² K), facilitating efficient energy absorption. The overall heat transfer coefficient of the system was calculated to be 1.187 W m⁻² K⁻¹, indicating effective heat utilization. Results showed that powders dried at higher temperatures (85°C) exhibited greater solubility (89.04%) and hygroscopicity (17%) due to enhanced porosity from rapid water evaporation. However, this was accompanied by significant color degradation, likely due to Maillard browning and anthocyanin degradation, as evidenced by a high total color difference (∆E > 4.0). Samples dried at 65°C retained better color but exhibited lower solubility and higher moisture content. The optimal drying temperature was found to be 75°C, balancing functionality and appearance with a solubility of ~85.8%, water activity <0.46, and a perceptible color difference below critical thresholds (∆E < 3.2). This temperature effectively maintained product integrity while ensuring efficient drying
Processing of Biomass By-Products for Non- Torrefied Pallet Production
No full textThe global reliance on fossil fuels, primarily coal, oil, and natural gas, has driven a dramatic increase in greenhouse gas (GHG) emissions, which are a major contributor to climate change. Research indicates that an 80% increase in fossil fuel consumption leads to a 70% rise in greenhouse gas (GHG) emissions, underscoring the urgent need for cleaner, renewable energy alternatives. Among the most promising solutions is biomass energy, which is considered nearly carbon-neutral and offers significant environmental and economic benefits due to its renewable nature and lower production costs. However, raw biomass presents several challenges: it is bulky, has high moisture content, and is irregular in shape and size, making it difficult to handle, transport, and store efficiently. Densification of biomass into pellets addresses these issues by increasing its specific weight from 40–200 kg/m³ to 600–800 kg/m³, making transportation and storage more practical and cost-effective. Pellets also offer uniformity in size and shape, which simplifies handling and allows for more consistent combustion in energy applications
कृषि में एआईः डेमो से निर्णय की ओर बढ़ने का समय
No full textकृषि में एआईः डेमो से निर्णय की ओर बढ़ने का सम