Absorber Tray

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The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

A. A. El-sebaii - One of the best experts on this subject based on the ideXlab platform.

  • A thermodynamic review of solar air heaters
    Renewable and Sustainable Energy Reviews, 2015
    Co-Authors: Abhishek Saxena, A. A. El-sebaii
    Abstract:

    Solar air heaters (SAHs) form the foremost component of solar energy utilization system. These air heaters absorb the irradiance and convert it into thermal energy at the absorbing surface and then transfer this energy to a fluid flowing through the collector. SAHs are inexpensive and most used collection devices because of their inherent simplicity. SAHs are found in several solar energy applications, especially for space heating, timber seasoning and agriculture drying. It has been observed by studying the previous literature that all the elements of a solar air heater such as; an Absorber Tray, the ducts, glazing, insulation, extended surfaces, as well as the tilt angle, have a significant effect on the thermal performance of the system. This review article focus on the developments that has followed round the globe in various aspects of solar air heating systems since 1877 up to now, with a glimpse of some novel patents of SAHs. The various methods that are used to improve the thermal performance of SAHs such as; optimizing the dimensions of the air heater construction elements, use of extended surfaces with different shapes and dimensions, use of sensible or latent storage media, use of concentrators to augment the available solar radiation, integrating photovoltaic elements with the heaters, etc, are also reported. Besides this, some benefits by using the SAHs has been discussed.

Abhishek Saxena - One of the best experts on this subject based on the ideXlab platform.

  • A thermodynamic review of solar air heaters
    Renewable and Sustainable Energy Reviews, 2015
    Co-Authors: Abhishek Saxena, A. A. El-sebaii
    Abstract:

    Solar air heaters (SAHs) form the foremost component of solar energy utilization system. These air heaters absorb the irradiance and convert it into thermal energy at the absorbing surface and then transfer this energy to a fluid flowing through the collector. SAHs are inexpensive and most used collection devices because of their inherent simplicity. SAHs are found in several solar energy applications, especially for space heating, timber seasoning and agriculture drying. It has been observed by studying the previous literature that all the elements of a solar air heater such as; an Absorber Tray, the ducts, glazing, insulation, extended surfaces, as well as the tilt angle, have a significant effect on the thermal performance of the system. This review article focus on the developments that has followed round the globe in various aspects of solar air heating systems since 1877 up to now, with a glimpse of some novel patents of SAHs. The various methods that are used to improve the thermal performance of SAHs such as; optimizing the dimensions of the air heater construction elements, use of extended surfaces with different shapes and dimensions, use of sensible or latent storage media, use of concentrators to augment the available solar radiation, integrating photovoltaic elements with the heaters, etc, are also reported. Besides this, some benefits by using the SAHs has been discussed.

Prabha Dashora - One of the best experts on this subject based on the ideXlab platform.

  • mathematical formalism to study energy distribution between base and walls of solar hot boxes for mirror reflected solar radiation
    International Journal of Renewable Energy Research, 2019
    Co-Authors: Namrata Sengar, Sunita Mahavar, Prabha Dashora
    Abstract:

    The paper presents an analysis of the distribution of energy absorbed by base plate and walls of the Absorber Tray due to mirror reflected radiation for a solar hot box. The Absorber Tray has been considered as composed of five surfaces (base plate and four walls). Using solar geometry angles, collector-reflector design parameters and with proper boundary conditions the expressions for reflected radiation receiving areas have been developed for these surfaces. The developed formalism has been studied for various cases such as non-tracked, azimuthally tracked collector with fixed mirror angle and fully tracked modes. The developed formalism can be used in general for any flat plate collector with four walled Absorber Tray. The results of calculations presented here are for hot box solar cooker with inclined walls. This study may serve as a useful aid in better designing of four walled flat plate collectors.

Sekhon, Ajitpal Singh - One of the best experts on this subject based on the ideXlab platform.

  • Absorber Hydraulies Modifieation for Zero-Foaming ofMDEA Solutions
    Universiti Teknologi Petronas, 2010
    Co-Authors: Sekhon, Ajitpal Singh
    Abstract:

    This thesis describes the research carried out to solve the foaming issues in Malaysia LNG Sdn. Bhd. with its Acid Gas Removal Units. The Absorber column hydraulics and design is found to be not suitable for usage of MDEA solvents which gives a higher absorption capacity. A thorough study of Absorber hydraulics and parametric study on foaming behavior is carried out. Modification for the hydraulics design is calculated and justified to avoid foaming. The report consist of four chapters that cover the introduction of the project, literature review of related topics, project methodology, Project Progresses and finally the conclusion. The introduction part mainly discussed about the background of the study of foaming issue in the acid gas removal unit using MDEA solvent. Objectives and scope of the study is also defined here to specify the area of study. Chapter 2 of the report describes more on the literature review of Hydraulic Limitations, Foaming Tendency, Foaming Stability, Column Hydraulics Design Consideration, Foaming Factor, and Acid Gas Absorber (Tray column) Internal Design. The methodology and project work will be covered in the Chapter 3 of the report. In this part, the procedure identification of the study, and tooVsoftware required is discussed. The methodology consists of work on reviewing design consideration for Absorber column, study properties of MDEA solvents and foaming mechanics. The deliverable from this research is to propose design of Absorber column with detailed calculation and modeling which is robust from MDEA solvent foaming. Chapter 4 describes the Results and Discussion. Information from the Excel Modeling is made known here and communicated through tables and calculation basis. Finally, the project conclusion is stated in the report together with the references used for research work on this project

Namrata Sengar - One of the best experts on this subject based on the ideXlab platform.

  • mathematical formalism to study energy distribution between base and walls of solar hot boxes for mirror reflected solar radiation
    International Journal of Renewable Energy Research, 2019
    Co-Authors: Namrata Sengar, Sunita Mahavar, Prabha Dashora
    Abstract:

    The paper presents an analysis of the distribution of energy absorbed by base plate and walls of the Absorber Tray due to mirror reflected radiation for a solar hot box. The Absorber Tray has been considered as composed of five surfaces (base plate and four walls). Using solar geometry angles, collector-reflector design parameters and with proper boundary conditions the expressions for reflected radiation receiving areas have been developed for these surfaces. The developed formalism has been studied for various cases such as non-tracked, azimuthally tracked collector with fixed mirror angle and fully tracked modes. The developed formalism can be used in general for any flat plate collector with four walled Absorber Tray. The results of calculations presented here are for hot box solar cooker with inclined walls. This study may serve as a useful aid in better designing of four walled flat plate collectors.