
Closed
Posted
Paid on delivery
Project objective: We are developing a food dehydrator. Our first priority is achieving uniform airflow across all 21 trays and across the usable area of each tray. This assignment focuses on designing an airflow prototype that can be tested at room temperature before integrating heating or a heat-pump system. Scope of work - Agree on chamber dimensions, tray spacing, airflow direction, and target velocity. - Develop and compare practical supply-plenum, return-plenum, and tray-channel arrangements. - Assess features such as tapered plenums, guide vanes, perforated plates, baffles, and adjustable balancing openings. - Account for airflow resistance from both empty trays and food-loaded trays. - Estimate total airflow, pressure losses, and the required blower operating point. - Evaluate the recommended concept using engineering calculations and CFD. - Propose a low-cost prototype with adjustable features for airflow balancing. **Key performance requirements** The design should address: - Flow variation between the bottom, middle, and top trays. - Velocity variation across each tray’s usable drying area. - Dead zones, bypass flow, and excessive local velocities. - Sensitivity to changes in food loading and partial tray occupancy. - Blower power and pressure-drop tradeoffs. The target velocity and acceptable uniformity limits will be agreed at kickoff. Please propose measurable acceptance criteria and explain how they will be verified. **Required deliverables** 1. Comparison of two or three airflow concepts, with a recommended design. 2. Dimensioned concept drawings and an editable 3D model. 3. Airflow and pressure-loss calculations with preliminary blower selection. 4. CFD results showing tray-by-tray airflow, velocity distribution, and pressure distribution. 5. Assessment of empty-tray and representative loaded-tray conditions, with assumptions clearly stated. 6. Prototype construction details for plenums, baffles, openings, and adjustment features. 7. A physical test plan specifying measurement locations, instruments, and uniformity calculations. Preferred experience Experience in industrial dryer airflow, HVAC distribution, plenum design, fan selection, and CFD. Practical experience correlating simulations with airflow measurements is strongly preferred. Project boundaries This first phase covers the drying chamber, trays, plenums, and blower airflow system. Refrigeration, heating, and drying-process development will be handled in subsequent phases. **Ownership and communication expectations** We need a self-driven freelancer who can independently take ownership of the assignment, plan the work, identify missing inputs early, and progress without repeated reminders or follow-up from us. The freelancer is expected to: - Proactively recommend design options and explain the tradeoffs. - Provide a brief progress update twice a week covering completed work, preliminary results, next steps, and any blockers. - Share drawings, calculations, and CFD results as milestones are completed. - Highlight issues promptly, along with proposed solutions and any decisions required from us. - Maintain an updated results summary showing airflow uniformity, pressure drop, and blower requirements for each design iteration. - Deliver the agreed work within the committed timeline and coordinate design reviews proactively.
Project ID: 40746180
12 proposals
Remote project
Active 16 hours ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
12 freelancers are bidding on average ₹18,683 INR for this job

Hi there, I can help you design and optimize the food dehydrator airflow system with a focus on achieving uniform airflow across all 21 trays. I have 7+ years of experience in CFD, ANSYS Fluent, HVAC/airflow analysis, pressure-drop calculations, plenum design, and mechanical design. I can evaluate multiple supply/return plenum concepts, baffles, guide vanes and balancing openings, including empty and representative loaded-tray conditions. Deliverables: 2–3 airflow concepts with engineering trade-off comparison Dimensioned concept/3D model Airflow, pressure-drop and blower sizing calculations ANSYS Fluent CFD for tray-by-tray velocity/pressure uniformity Identification of dead zones, bypass flow and high-velocity regions Prototype design with adjustable balancing features Physical airflow measurement and validation plan Clear acceptance criteria for airflow uniformity I can take ownership of the complete CFD/design workflow and provide regular progress updates. Technical question: Do you already have the chamber dimensions, 21-tray dimensions/spacing, target drying-air velocity and available blower specifications? Best regards, Arati M.
₹25,000 INR in 7 days
6.7
6.7

With a unique breadth and depth of engineering skills and experiences, I am uniquely positioned to tackle every aspect of your food dehydrator project from creating detailed 3D models to conducting Computational Fluid Dynamics (CFD) simulations. A key strength in my skillset lies in HVAC distribution system design which coupled with my prior experience in industrial dryer airflow, plenum design, fan selection, and CFD will lend valuable insight to this project and allow me to identify any potential issues early on. I am also well-versed in estimating total airflow, assessing pressure loss, and utilizing these calculations for blower system designs; skills that are vital to this project's success. In addition to my technical skills as an engineer, I possess the qualities necessary for successful collaboration, ownership, and proactivity demanded by this project.
₹16,666 INR in 1 day
6.2
6.2

As an experienced freelancer in HVAC, simulation and 3D design (including modeling and rendering), I strongly believe my skill set aligns perfectly with your project, "Food Dehydrator Airflow Design". With a deep understanding of industrial dryer airflow, HVAC distribution, plenum design, fan selection, and an impressive practical experience correlation simulations with airflow measurements, I am confident I can provide the effective solution you are seeking. Drawing on my significant expertise in engineering calculations and CFD, I will deliver not just one but two or more comprehensive airflow concepts for your evaluation. My deliverables will include precise dimensioned concept drawings, editable 3D models, airflow and pressure-loss calculations with preliminary blower selection as well as CFD results showing tray-by-tray airflow, velocity distribution, and pressure distribution. Previous clients often found my ability to anyone for businesses. Moreover, being a self-driven professional who takes full ownership of projects lets me adapt to your needs. To ensure a seamless process I propose regular biweekly updates to keep you abreast of completed work and preliminary results while highlighting issues promptly with proposed solutions. Rest assured I'll meet all your specified deadlines. Let's collaborate for a highly efficient and uniform food dehydrator airflow system that sets you up for success!
₹25,699 INR in 1 day
5.5
5.5

Hi, I’m a CFD engineer experienced in airflow analysis, HVAC distribution, plenum design, blower selection and CFD modelling. Your project is particularly interesting because the goal is not simply to achieve total airflow, but to obtain consistent velocity across all 21 trays and across the usable drying area. I can compare multiple supply/return plenum concepts and evaluate tapered plenums, guide vanes, perforated plates, baffles and adjustable balancing openings. I’ll combine engineering pressure-loss calculations with CFD to assess tray-to-tray variation, local velocity distribution, bypass flow and dead zones under both empty and representative loaded-tray conditions. I’ll also develop the recommended concept into an editable 3D model with dimensioned prototype details, preliminary blower requirements and a practical physical testing plan. Throughout the project I’ll maintain a results summary comparing each iteration and provide the requested progress updates, highlighting issues and design decisions proactively. Once the chamber dimensions, tray geometry and target velocity are available, I can establish measurable uniformity criteria and prepare the initial concepts.
₹12,500 INR in 1 day
4.7
4.7

As an experienced electrical and mechanical engineer with a flair for 3D modeling and airflow design, I believe I am the ideal individual to tackle your food dehydrator project. While I might be new to this platform, my experience in graphics, product engineering, and animating means I'm well-versed in creating scalable and efficient designs, which directly correlate to your project's demands. I've proven my ability to work autonomously on sophisticated projects, a quality you've clearly voiced you're seeking. Over my career, I've consistently delivered results that meet the mark, with a well-thought-out process that anticipates challenges before they arrive. With that said, I see no difference between previous projects I've handled and this current one. Both hinge on precision, compositional understanding, and a holistic approach - which I'm confident of.
₹12,582 INR in 1 day
4.0
4.0

Hi, I can design and validate the airflow system for your 21-tray food dehydrator, including concept comparison, pressure-drop calculations, blower sizing, CFD analysis, prototype details, and a physical test plan. The best solution is to first confirm chamber dimensions, tray spacing, airflow direction, target velocity, food loading assumptions, and acceptable uniformity. Then I’ll compare 2–3 plenum/channel concepts using tapered plenums, baffles, perforated plates, guide vanes, and adjustable balancing openings, and select the strongest option based on airflow uniformity and pressure loss. I’m comfortable with airflow engineering, HVAC/plenum design, CFD, blower/fan selection, pressure-loss calculations, SolidWorks-style 3D modeling, tray-flow balancing, and simulation-based optimization. Deliverables will include: * 2–3 airflow concept comparisons * Recommended final concept * Dimensioned drawings + editable 3D model * Airflow and pressure-loss calculations * Preliminary blower selection * CFD velocity/pressure results * Empty and loaded tray analysis * Prototype construction details * Adjustable balancing features * Physical test plan * Twice-weekly progress updates I’ll focus on measurable tray-to-tray and across-tray uniformity, practical prototype construction, and a design that can later integrate cleanly with the heating/heat-pump stage. Best regards Ankit
₹12,500 INR in 2 days
4.0
4.0

I have completed similar mechanical design, airflow analysis and CFD-focused engineering projects involving fluid distribution, equipment layouts and performance optimization. I have extensive experience in mechanical engineering, HVAC airflow, plenum design, blower selection, pressure-loss calculations and CFD analysis. I can develop and evaluate airflow concepts for your 21-tray food dehydrator, focusing on uniform distribution across every tray and its usable drying area before heating or heat-pump integration. Proposed Approach I establish the chamber geometry, tray spacing and target airflow, then compare two or three supply/return arrangements. Using engineering calculations and CFD, I’ll assess tapered plenums, guide vanes, baffles, perforated plates and adjustable balancing openings under empty and representative loaded-tray conditions. I also define measurable uniformity criteria and a practical room-temperature test method to compare prototype measurements with simulation results. Why Choose Me I focus on practical engineering solutions that can be built and tested, not just attractive simulation results. I’ll take ownership of the workflow, communicate blockers early and maintain a clear record of design decisions and performance across iterations. Please share the available chamber dimensions, tray layout and any initial airflow targets. I can then confirm the scope, acceptance criteria, timeline and fixed price.
₹13,000 INR in 4 days
3.9
3.9

With over a decade of experience in electrical engineering, I am adept at building and designing systems that merge complex functionalities to achieve a unified goal. This aligns perfectly with your project's need to develop an efficient airflow design for your food dehydrator. My proficiency in areas such as HVAC distribution, plenum design, fan selection, and CFD will undoubtedly prove invaluable in delivering a well-designed prototype. My stack-focused approach is another advantage that sets me apart from other freelancers. In addition to my technical skills, I have expertise in implementing Odoo ERP and working on IoT hardware, which can be invaluable when it comes to integrating your food dehydrator with other systems in the future. Moreover, having hands-on experience with design iterations involving AI is something I've honed over the years, and I'm confident it will allow me to provide results that are practical and aligned with your vision.
₹25,000 INR in 7 days
3.5
3.5

Hi, I've reviewed your project "Food Dehydrator Airflow Design". I have hands-on experience with relevant technologies and can deliver a clean, well-tested result on time. I'm available to start now and happy to walk through my approach or share similar past work. Looking forward to working with you.
₹12,500 INR in 7 days
0.0
0.0

Your first priority is uniform airflow across all 21 trays, and this prototype phase needs to test the chamber at room temperature before heating is added. I’d compare two or three plenum and tray channel concepts, then carry the recommended layout through calculations, CFD and an adjustable prototype plan. The first funded milestone will validate the simulation setup before I complete the full assessment. I can’t point to a comparable published case study, and my CFD solver experience is not confirmed, so I’ll state the modeling assumptions and checks clearly. Deliverables include concept comparison with dimensioned drawings and an editable model, airflow and pressure calculations with preliminary blower selection, empty and representative loaded tray CFD results, and prototype details with a measurement based test plan. I’ll share progress twice weekly and flag decisions early. What chamber dimensions, tray geometry and representative food loading can you provide at kickoff? Delivery: within 168 elapsed hours (7 calendar days) after funded kickoff and receipt of the required access and materials.
₹18,750 INR in 7 days
1.5
1.5

Bengaluru, India
Payment method verified
Member since Apr 7, 2026
₹2000-3500 INR
₹1500-12500 INR
$8-15 USD / hour
$50000-100000 USD
₹150000-250000 INR
₹12500-37500 INR
$10-30 AUD
₹12500-37500 INR
$750-1500 USD
₹750-1250 INR / hour
$30-250 USD
₹12500-37500 INR
$8-15 USD / hour
$8-15 USD / hour
₹1500-12500 INR
$8-15 USD / hour
₹1500-12500 INR
$250-750 USD
₹1500-12500 INR
$250-750 CAD
$20-40 USD
£1500-3000 GBP