Biological Systems Engineering, Precision and Automated Agricultural Systems
13
Scopus Publications
448
Scholar Citations
10
Scholar h-index
10
Scholar i10-index
Scopus Publications
Modelling and Optimisation of Solar Photovoltaic Power Using Response Surface Methodology Abdulrahman Mohammad, Mudhar Al-Obaidi, Hassan Dakkama, Haitham Bahlol Journal of Sustainable Development of Energy Water and Environment Systems, 2024 Modeling and analysing the relationship between the operating conditions of solar photovoltaic module such as the solar irradiance, module temperature, wind speed, dust, air moisture and the performance metric of generated power is considered as an interesting subject. In the current study, the response surface methodology based on the D-optimal Design approach is applied to model an optimise the generated power of photovoltaic module using desirability function. The optimisation has considered the interaction of three essential independent variables including: solar irradiance (169.2-981.7) , module temperature (36.14-67.01) °C and wind speed (0.5-2.4) m/s with the generated power (dependent variable). A data set of 328 reading is collected and analysed. In this regard, the suggested response model uses two factorial order with polynomial equation. The response surface methodology model has indicated a linear relationship between the independent variables and power generated with a coefficient of determination of 98.45%. The optimal operating conditions of 968.04 solar irradiance, module temperature 41.82 °C and wind speed 1.67 m/s are obtained with a maximum desirability function of 0.985. This in turn has elaborated a maximum generated power of 128.883 W. Interestingly, this optimised power is in corroboration with the experimental value of 127.1 W at the same conditions. Notably, the module temperature has a considerable negative influence on the generated power.
Recent Advances, Development, and Impact of Using Phase Change Materials as Thermal Energy Storage in Different Solar Energy Systems: A Review Farhan Lafta Rashid, Mudhar A. Al-Obaidi, Anmar Dulaimi, Haitham Y. Bahlol, Ala Hasan Designs, 2023 The efficient utilization of solar energy technology is significantly enhanced by the application of energy storage, which plays an essential role. Nowadays, a wide variety of applications deal with energy storage. Due to the intermittent nature of solar radiation, phase change materials are excellent options for use in several types of solar energy systems. This overview of the relevant literature thoroughly discusses the applications of phase change materials, including solar collectors, solar stills, solar ponds, solar air heaters, and solar chimneys. Despite the complexity of their availability and high costs, phase change materials are utilized in the majority of solar energy techniques because of the considerable technical improvements they provide. While numerous studies have investigated the progress of phase change materials used in solar energy applications such as photovoltaic systems, it is vital to understand the conceptual knowledge of employing phase change materials in various types of solar thermal energy systems. Investigations into the use of phase change materials in solar applications for the purpose of storing thermal energy are still being carried out to upgrade the overall performance. This paper briefly reviews recently published studies between 2016 and 2023 that utilized phase change materials as thermal energy storage in different solar energy systems by collecting more than 74 examples from the open literature. This study focuses on demonstrating the maturity of phase change materials and their integration into solar energy applications. Based on the findings, proposals for new research projects are made.
Smart spray analytical system for orchard sprayer calibration: A-proof-of-concept and preliminary results Haitham Y. Bahlol, Abhilash K. Chandel, Gwen-Alyn Hoheisel, Lav R. Khot Transactions of the Asabe, 2020 Efficient chemical spray applications are vital to reduce off-target drift, economic losses to tree fruit growers, and negative environmental impacts. It is thus important to adequately calibrate and adjust orchard sprayers for intended applications. This technical note describes the design, prototyping, and field evaluation of a sensor-based smart spray analytical system (SSAS). The SSAS is equipped with units for spray capturing and volumetric quantification, air-assist velocity measurement, system actuation and control, and data acquisition and wireless transmission. The spray liquid and air-assist velocity quantification units are assembled on a custom-made mobile frame for vertical stop-and-go movement to provide measurements at eight distinct sampling heights above ground level. The data acquisition and transmission units autonomously log the data on-board and transmit wirelessly to a receiving computer with time and height stamps for real-time graphical visualization. All these autonomous processes are guided by a custom programmable single-board computer. The SSAS was preliminarily evaluated for spray liquid and air-assist velocity pattern assessment of an air-assisted orchard sprayer in four sets of spray trials. An average spray liquid recovery of 14.03% and pertinent coefficient of variation (CV) of 10.73% were observed. An average CV of 11.93% was observed in the air-assist velocity patterns. Overall, the SSAS provided measurements within acceptable ranges of variation. This system can thus minimize the experimental errors, time, and efforts involved in conventional assessments of sprayer attributes, thereby providing a reliable solution for orchard sprayer calibration and adjustment. Keywords: Air-assist velocity pattern, Airblast sprayer calibration, Data storage and transmission, Graphical visualization, Smart spray analytical system, Spray liquid pattern.
Development and performance evaluation of a pneumatic solid set canopy delivery system for high-density apple orchards Rajeev Sinha, Rakesh Ranjan, Haitham Y. Bahlol, Lav R. Khot, Gwen-Alyn Hoheisel, Matthew J. Grieshop Transactions of the Asabe, 2020 Solid set canopy delivery systems (SSCDS) are fixed spray systems that consist of a network of permanently plumbed emitters in high-density tree-fruit orchard canopies. Most of the previously configured SSCDS worked on the principle of hydraulic spray delivery (HSD), which may not be suitable for large-scale installation due to the drop in operating pressure caused by frictional losses in the spray lines. Therefore, a pneumatic spray delivery (PSD) based SSCDS was developed in this study for potentially achieving uniform spray application at all locations along the spray lines. A reservoir subsystem was developed to contain a precisely metered amount of spray liquid. Once filled, compressed air pushed through the spray lines can pressurize the reservoir to help deliver uniform spray into the canopy through emitters. In this study, HSD and PSD systems of 91 m set length were installed in a high-density apple orchard. Both systems were evaluated for variations in operating pressure, spray output, and spray performance. Spray performance was quantified during the middle (BBCH 75) and late (BBCH 85) apple (cv. WA-38 on tall spindle architecture) crop growth stages. Deposition and coverage in three canopy zones and on both sides of leaves were evaluated using Mylar cards and water-sensitive papers (WSP) as samplers, respectively. The Mylar cards and WSP were respectively analyzed using fluorometry and image processing. Statistically similar operating pressure (p > 0.05) was observed for the HSD and PSD systems at 3 m (286.1 and 284.1 kPa, respectively), 33 m (268.4 and 270.5 kPa), 60 m (260.6 and 268.9 kPa), and 87 m (255.3 and 257.9 kPa) from the row inlet. Despite the operating pressure drop, the PSD system had uniform spray output along the 91 m spray line. Compared to the HSD system, about 4%, 3%, 5%, and 20% higher spray output was delivered with the PSD system at 3, 33, 60, and 87 m, respectively, along the spray line. Overall, the PSD system had significantly higher mean spray deposition (p < 0.01) compared to the HSD system during the middle (521 and 382 ng cm-2, respectively) and late (631 and 409 ng cm-2, respectively) growth stages. The PSD system also had numerically higher spray deposition compared to the HSD system for all the canopy zones and on either side of leaf surfaces. Spray coverage trends were similar to deposition; however, the differences were not significant. Overall, the PSD-based SSCDS shows potential for large-scale installation, with additional refinements, for uniform spray applications in high-density apple orchards. Keywords: Hydraulic spray delivery, Pneumatic spray delivery, Solid set canopy delivery system, Spray coverage, Spray deposition.
Irrigated pinto bean crop stress and yield assessment using ground based low altitude remote sensing technology Rakesh Ranjan, Abhilash K. Chandel, Lav R. Khot, Haitham Y. Bahlol, Jianfeng Zhou, Rick A. Boydston, Phillip N. Miklas Information Processing in Agriculture, 2019 The pinto bean is one of widely consumed legume crop that constitutes over 42% of the U.S dry bean production. However, limited studies have been conducted in past to assess its quantitative and qualitative yield potentials. Emerging remote sensing technologies can help in such assessment. Therefore, this study evaluates the role of ground-based multispectral imagery derived vegetation indices (VIs) for irrigated the pinto bean stress and yield assessments. Studied were eight cultivars of the pinto bean grown under conventional and strip tillage treatments and irrigated at 52% and 100% of required evapotranspiration. Imagery data was acquired using a five-band multispectral imager at early, mid and late growth stages. Commonly used 25 broadband VIs were derived to capture crop stress traits and yield potential. Principal component analysis and Spearman’s rank correlation tests were conducted to identify key VIs and their correlation (rs) with abiotic stress at each growth stage. Transformed difference vegetation index, nonlinear vegetation index (NLI), modified NLI and infrared percentage vegetation index (IPVI) were consistent in accounting the stress response and crop yield at all growth stages (rs > 0.60, coefficient of determination (R2): 0.50–0.56, P < 0.05). Ten other VIs significantly accounted for crop stress at early and late stages. Overall, identified key VIs may be helpful to growers for precise crop management decision making and breeders for crop stress response and yield assessments.
Modelling and optimisation of solar photovoltaic power using response surface methodology A Mohammad, M Al-Obaidi, H Dakkama, H Bahlol Journal of Sustainable Development of Energy, Water and Environment Systems … , 2024 2024 Citations: 6
Estimation of crop water requirement for wheat and barley crops in Al-Musayab District, Iraq HY Bahlol, SH Jassam, IAH Al-Obadui, MA Al-Obaidi, TJ Al-Musawi Engineering Techniques „Technical and Scientific Solutions for Sustainable … , 2024 2024
Recent advances, development, and impact of using phase change materials as thermal energy storage in different solar energy systems: a review FL Rashid, MA Al-Obaidi, A Dulaimi, HY Bahlol, A Hasan Designs 7 (3), 66 , 2023 2023 Citations: 85
Recent advances, development, and impact of using phase change materials as thermal energy storage in different solar energy systems: a review, Design 7 (3)(2023) 66 FL Rashid, MA Al-Obaidi, A Dulaimi, HY Bahlol, A Hasan 2023 Citations: 4
Canopy spray deposition and related mortality impacts of commonly used insecticides on Drosophila suzukii Matsumura (Diptera: Drosophilidae) populations in … S Mermer, F Pfab, GA Hoheisel, HY Bahlol, L Khot, DT Dalton, LJ Brewer, ... Pest management science 76 (4), 1531-1540 , 2020 2020 Citations: 22
Smart spray analytical system for orchard sprayer calibration: A-proof-of-concept and preliminary results HY Bahlol, AK Chandel, GA Hoheisel, LR Khot Transactions of the ASABE 63 (1), 29-35 , 2020 2020 Citations: 13
Development and performance evaluation of a pneumatic solid set canopy delivery system for high-density apple orchards R Sinha, R Ranjan, HY Bahlol, LR Khot, GA Hoheisel, MJ Grieshop Transactions of the ASABE 63 (1), 37-48 , 2020 2020 Citations: 20
The smart spray analytical system: Developing understanding of output air-assist and spray patterns from orchard sprayers HY Bahlol, AK Chandel, GA Hoheisel, LR Khot Crop protection 127, 104977 , 2020 2020 Citations: 45
Optimizing chemical control of spotted-wing drosophila S Mermer, GA Hoheisel, H Bahlol, L Khot, D Rendon, L Brewer, D Dalton, ... Management 62 (4), 368-377 , 2019 2019
Irrigated pinto bean crop stress and yield assessment using ground based low altitude remote sensing technology R Ranjan, AK Chandel, LR Khot, HY Bahlol, J Zhou, RA Boydston, ... Information Processing in Agriculture 6 (4), 502-514 , 2019 2019 Citations: 64
Feasibility of a solid set canopy delivery system for efficient agrochemical delivery in vertical shoot position trained vineyards. RS Rajeev Sinha, LR Khot, GA Hoheisel, MJ Grieshop, H Bahlol 2019
Engineering Solutions for Improved Spray Applications in Perennial Specialty Crops HY Bahlol Washington State University , 2019 2019
Feasibility of a Solid set canopy delivery system for efficient agrochemical delivery in vertical shoot position trained vineyards R Sinha, LR Khot, GA Hoheisel, MJ Grieshop, H Bahlol Biosystems Engineering 179, 59-70 , 2019 2019 Citations: 30
Efficacy evaluation of horticultural oil based thermotherapy for pear psylla management HY Bahlol, R Sinha, GA Hoheisel, R Ehsani, LR Khot Crop Protection 113, 97-103 , 2018 2018 Citations: 7
In-field sensing for crop protection: efficacy of air-blast sprayer generated crosswind in rainwater removal from cherry canopies J Zhou, LR Khot, HY Bahlol, GK Kafle, T Peters, MD Whiting, Q Zhang, ... Crop Protection 91, 27-33 , 2017 2017 Citations: 8
In-field sensing for crop protection: efficacy of air-blast sprayer generated crosswind in rainwater removal from cherry canopies. ZJF Zhou JianFeng, LR Khot, HY Bahlol, GK Kafle, T Peters, MD Whiting, ... 2016
Towards precision spray applications to prevent rain-induced sweet cherry cracking: understanding calcium washout due to rain and fruit cracking susceptibility GK Kafle, LR Khot, J Zhou, HY Bahlol, Y Si Scientia Horticulturae 203, 152-157 , 2016 2016 Citations: 45
State of ion mobility spectrometry and applications in agriculture a review GK Kafle, LR Khot, S Sankaran, HY Bahlol, JA Tufariello, HH Hill Jr Engineering in agriculture, environment and food 9 (4), 346-357 , 2016 2016 Citations: 52
Application efficiency of three different types of sprayers in western Pacific Northwest Blueberries S Mermer, GA Hoheisel, H Bahlol, L Khot, V Walton 2016 Citations: 2
Evaluation of ground, proximal and aerial remote sensing technologies for crop stress monitoring J Zhou, LR Khot, HY Bahlol, R Boydston, PN Miklas IFAC-PapersOnLine 49 (16), 22-26 , 2016 2016 Citations: 41
MOST CITED SCHOLAR PUBLICATIONS
Recent advances, development, and impact of using phase change materials as thermal energy storage in different solar energy systems: a review FL Rashid, MA Al-Obaidi, A Dulaimi, HY Bahlol, A Hasan Designs 7 (3), 66 , 2023 2023.0 Citations: 85
Irrigated pinto bean crop stress and yield assessment using ground based low altitude remote sensing technology R Ranjan, AK Chandel, LR Khot, HY Bahlol, J Zhou, RA Boydston, ... Information Processing in Agriculture 6 (4), 502-514 , 2019 2019.0 Citations: 64
State of ion mobility spectrometry and applications in agriculture a review GK Kafle, LR Khot, S Sankaran, HY Bahlol, JA Tufariello, HH Hill Jr Engineering in agriculture, environment and food 9 (4), 346-357 , 2016 2016.0 Citations: 52
The smart spray analytical system: Developing understanding of output air-assist and spray patterns from orchard sprayers HY Bahlol, AK Chandel, GA Hoheisel, LR Khot Crop protection 127, 104977 , 2020 2020.0 Citations: 45
Towards precision spray applications to prevent rain-induced sweet cherry cracking: understanding calcium washout due to rain and fruit cracking susceptibility GK Kafle, LR Khot, J Zhou, HY Bahlol, Y Si Scientia Horticulturae 203, 152-157 , 2016 2016.0 Citations: 45
Evaluation of ground, proximal and aerial remote sensing technologies for crop stress monitoring J Zhou, LR Khot, HY Bahlol, R Boydston, PN Miklas IFAC-PapersOnLine 49 (16), 22-26 , 2016 2016.0 Citations: 41
Feasibility of a Solid set canopy delivery system for efficient agrochemical delivery in vertical shoot position trained vineyards R Sinha, LR Khot, GA Hoheisel, MJ Grieshop, H Bahlol Biosystems Engineering 179, 59-70 , 2019 2019.0 Citations: 30
Canopy spray deposition and related mortality impacts of commonly used insecticides on Drosophila suzukii Matsumura (Diptera: Drosophilidae) populations in … S Mermer, F Pfab, GA Hoheisel, HY Bahlol, L Khot, DT Dalton, LJ Brewer, ... Pest management science 76 (4), 1531-1540 , 2020 2020.0 Citations: 22
Development and performance evaluation of a pneumatic solid set canopy delivery system for high-density apple orchards R Sinha, R Ranjan, HY Bahlol, LR Khot, GA Hoheisel, MJ Grieshop Transactions of the ASABE 63 (1), 37-48 , 2020 2020.0 Citations: 20
Smart spray analytical system for orchard sprayer calibration: A-proof-of-concept and preliminary results HY Bahlol, AK Chandel, GA Hoheisel, LR Khot Transactions of the ASABE 63 (1), 29-35 , 2020 2020.0 Citations: 13
In-field sensing for crop protection: efficacy of air-blast sprayer generated crosswind in rainwater removal from cherry canopies J Zhou, LR Khot, HY Bahlol, GK Kafle, T Peters, MD Whiting, Q Zhang, ... Crop Protection 91, 27-33 , 2017 2017.0 Citations: 8
Efficacy evaluation of horticultural oil based thermotherapy for pear psylla management HY Bahlol, R Sinha, GA Hoheisel, R Ehsani, LR Khot Crop Protection 113, 97-103 , 2018 2018.0 Citations: 7
Modelling and optimisation of solar photovoltaic power using response surface methodology A Mohammad, M Al-Obaidi, H Dakkama, H Bahlol Journal of Sustainable Development of Energy, Water and Environment Systems … , 2024 2024.0 Citations: 6
Recent advances, development, and impact of using phase change materials as thermal energy storage in different solar energy systems: a review, Design 7 (3)(2023) 66 FL Rashid, MA Al-Obaidi, A Dulaimi, HY Bahlol, A Hasan 2023.0 Citations: 4
Irrigated pinto bean crop stress and yield assessment using ground based low altitude remote sensing technology. Information Processing in Agriculture, v. 6, n. 4, 2019 R RANJAN, A CHANDEL, LAV KHOT, H BAHLOL, J ZHOU, ... Citations: 4
Application efficiency of three different types of sprayers in western Pacific Northwest Blueberries S Mermer, GA Hoheisel, H Bahlol, L Khot, V Walton 2016.0 Citations: 2
Estimation of crop water requirement for wheat and barley crops in Al-Musayab District, Iraq HY Bahlol, SH Jassam, IAH Al-Obadui, MA Al-Obaidi, TJ Al-Musawi Engineering Techniques „Technical and Scientific Solutions for Sustainable … , 2024 2024.0
Optimizing chemical control of spotted-wing drosophila S Mermer, GA Hoheisel, H Bahlol, L Khot, D Rendon, L Brewer, D Dalton, ... Management 62 (4), 368-377 , 2019 2019.0
Feasibility of a solid set canopy delivery system for efficient agrochemical delivery in vertical shoot position trained vineyards. RS Rajeev Sinha, LR Khot, GA Hoheisel, MJ Grieshop, H Bahlol 2019.0
Engineering Solutions for Improved Spray Applications in Perennial Specialty Crops HY Bahlol Washington State University , 2019 2019.0
