Tuesday, May 5, 2020

Technical Report Design and Evaluation

Question: Discuss about the Technical Report for Design and Evaluation. Answer: Introduction Heliostat is such a device that can track automatically the sun because it constantly reflects the sunlight to any destination as well as moves across the sky. This report is aimed to depict the design of the Heliostat prototype. Therefore, this report discusses the process of implementation of the prototype. On the other hand, the materials or things necessary for the prototype implementation are also aimed to be identified in this report. Furthermore, the details of the prototype function is also aimed to be discussed in this study. Process of Implementing Prototype Heliostat is such a device that can track automatically the sun because it constantly reflects the sunlight to any destination as well as moves across the sky (Chen et al. 2012). The design or the implementation of this prototype can be done through few steps. These are as follows: Wind Loading The wind measurement data can be retrieved from the anemometer placed at the Northeast direction in terms of setting the requirements of the operational wind speed (Monterreal et al. 2015). Therefore in this design phase, the adjacent roof was utilized. The time-averaged data can be yielded for an entire year whereas the anemometer can be yielded per minute. Heliostat Prototypes This system needs two orthogonal degrees in terms of reflecting constantly the solar irradiance onto a target or the receiver. The first prototype includes the tracking mechanism of a fixed horizontal system whereas the second one utilizes an azimuth elevation tracking mechanism. Tracking Mechanisms The secondary axis rotates around the horizontal axis in an AE configuration whereas the primary rotational axis rotates around a particular vertical axis (Meng et al. 2015). The arrangement operates typically with the two drives of orthogonal rotary or the combination of a linear as well as rotary drive. Drives Planetary gearbox, slewing drive as well as an off-the-shelf with the combined ratio of reduction of 35650:1 was utilized for the azimuth drive in the mechanism of AE tracking. Facet The aspect ratio as well as the size of facet has been determined as the size of the standard glass sheet about 1830 x 1220 mm (Meng, You, and Dubowsky 2014). Materials necessary to implement a Prototype In order to implement the entire heliostat prototype, there are few significant materials would be utilized. These materials can be categorized in two aspects such as the software design aspects as well as the hardware design aspects (Chen et al. 2012). The mirrors, standard steel sections, the off-the-shelf drive systems would be utilized as the core materials for implementing as well as designing this Heliostat prototype due to the time constraint as well as the requirements of the project. In implementing this prototype, the stepper motor has also been utilized for driving the altitude and the azimuth axes (Cheng, Lin and Tai 2014). Steeper motor would be used to implement this heliostat prototype. Apart from that, This particular prototype has been implemented by utilizing a worm gear of single stage 100 to 1 with the 200 step per revolution stepper motor for each of the axes. On the other hand, in case of the software design, two frames of reference have also been in the heliost at calibration those are named as the sun earth as well as the mirror frames (Chen et al. 2014). Most importantly, an open source software such as the HOpS software or the Heliostat Optics Simulation can be utilized for experimenting with different field configurations for the tower height as well as the heliostat placement together with the expected aiming error and the heliostat kinematics. Details of the Prototype Function Heliostat is such a device that can track automatically the sun because it constantly reflects the sunlight to any destination as well as moves across the sky. The implementation of the Heliostat prototype is very much important for the huge scale of solar collection system like the central receiver system. The aperture of the system as well as the area of solar intake is directly proportional to the total solar energy (Rossi et al. 2014). On the other hand, as per the major functionality or thee feature of this particular prototype, it can be evaluated that the possibility to control various heliostats with a unique engine is the significant feature of this prototype. Apart from that, the implementation or the design of the huge number of the heliostats can easily ensure the the high ratio of concentration without the necessary of the surfaces those are curved as well as reflective (Cheng, Lin and Tai 2014). The compensation as well as the calibration must be automatically accomplis hed in terms of reducing the maintenance and the installation costs as well due to a huge number of heliostats. In other words, it must be stated that the proper as well as the intelligent techniques of compensation and the calibration as well can easily obtain the required accuracy. Cost Estimation The table provided below portrays an estimation of costs of the materials those are required for implementing the heliostat prototype. Cost estimation for the Materials Required for Heliostat Design Materials Estimated Cost ($) Need Per ($) Net Cost Mirror 10 1 $10.00 worm gears 100 2 $200.00 CNC machine 120 1 $120.00 Off-the-shelf drive systems 50 2 $100.00 Standard steel sections 10 2 $20.00 Stepper Motor 125 1 $125.00 Plywood 25 1 $25.00 Gimbal Mount 30 1 $30.00 Steper Motor Controllers 110 2 $220.00 Lead Screws 5 10 $50.00 Support Frame 10 2 $20.00 EAD Motors 70 1 $70.00 Misc 40 $40.00 TOTALS (Automatically Calculated) $1,030.00 Table 1: Budget for prototype design (Created By Author) Conclusion This entire report has successfully depicted the complete idea regarding the Heliostat Prototype with the appropriate functionalities of this prototype as well as the proper cost estimation for the design in terms of budget. Most importantly, this project has successfully portrayed the basic idea regarding the implementation process of this prototype. References Chen, D., Yin, J., Chen, K., Zhao, K. and Zhang, B., 2014. Prototype design and experimental study on locust air-posture righting.Journal of Bionic Engineering,11(3), pp.459-468. Chen, Y.T., Chong, K.K., Lim, C.S., Lim, B.H., Tan, K.K., Aliman, O., Bligh, T.P., Tan, B.K. and Ismail, G., 2012. Report of the first prototype of non-imaging focusing heliostat and its application in high temperature solar furnace.Solar Energy,72(6), pp.531-544. Cheng, Y.T., Lin, J.H. and Tai, C.C., 2014, August. A Prototype Design of a Continuous and Real-Time Wireless Urine Monitoring System. InIntelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2014 Tenth International Conference on(pp. 29-32). IEEE. Meng, L., You, Z. and Dubowsky, S., 2014, July. Tailored compliance for adaptive solar energy heliostats with experimental validation. In2014 IEEE/ASME International Conference on Advanced Intelligent Mechatronics(pp. 32-37). IEEE. Meng, L., You, Z., Dubowsky, S., Li, B. and Xing, F., 2015. A Design Study of an Off-axis Paraboloid Shaping Method for Central Receiver System Heliostats.Energy Procedia,69, pp.158-167. Monterreal, R., Garcia, G., Romero, M. and Barrera, G., 2015. Development and Testing of a 100 m^ 2 Glass-Metal Heliostat With a New Local Control System.Solar engineering, pp.251-260. Rossi, S., Patki, S., Passoni, M., Perko, H., Gritsch, G., Ossenblok, P. and Yazicioglu, R.F., 2014, August. High density wireless EEG prototype: Design and evaluation against reference equipment. In2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society(pp. 5776-5779). IEEE.

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