Browsing by Author "เสริม จันทร์ฉาย"
Now showing items 1-20 of 20
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A development of a model for calculating global solar illuminance using Himawari satellite data
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/6/2020)In this research work, a model for calculating monthly average hourly global illuminance from Himawari satellite data was developed. A 3-year period (2016-2018) of data form the visible channel (0.51 m) of Himawari satellite ... -
Development of a model for calculating sky radiance under cloudless skies with the aerosol effect
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this research work, a statistical model for calculating sky radiance under cloudless sky condition was developed. The proposed model is a multiplication of two functions namely gradation function and indicatrix function. ... -
Development of a small-scale solar dryer for household use: Preliminary investigation of the performance and modelling
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this research, a small-scale solar dryer for household use was developed. The dryer consists of a semi-circle roof structure cover with polycarbonate solid sheet on a black-painted metal floor. The dimension of the ... -
Development of statistical models for converting values of solar diffuse radiation from sky on horizontal plane to those of diffuse radiation on inclined planes using solar radiation data from 4 stations in Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, models for converting values of diffuse solar radiation on horizontal plane into those on tilted planes with various tilted angles and sky conditions. Values of diffuse solar radiation on tilted plans were ... -
Development of typical meteorological dataset for daylight applications
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, typical meteorological data (TMD) sets for daylight applications for Chiang Mai, Ubon Ratchathani, Nakhon Pathom and Songkhla were developed. In developing the TMD 10-year (2008 - 2017), data on solar radiation, ... -
Drying of banana: Experiments and modelling
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, drying characteristics of banana, performance of the parabolic greenhouse solar dryer for banana drying and modelling of this type of dryer have been carried out. The results of the work are as follows. For ... -
Estimation of diffuse solar radiation in different wavelength bands using satellite data over Thailand
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, models for estimating diffuse solar radiation in different wavelength bands namely, erythemal ultraviolet radiation (0.28-0.40 µm), photosynthetically active radiation (0.40-0.70 µm), near infrared radiation ... -
INVESTIGATION OF ATMOSPHERIC WATER VAPOUR IN THAILAND
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 18/6/2021)This study aims to investigate the nature of water vapour in Thailand. The study comprises five parts. The first part is to develop a simple empirical model to estimate the precipitable water (PWV). In developing the model, ... -
Mapping solar radiation from ground and satellite-based data using a semi-empirical model
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, solar radiation maps were generated. A semi-empirical model for estimating monthly averaged global irradiation was developed. This model expresses the global irradiation as an empirical function of the ... -
Preliminary development of low-cost instrument for measuring solar ultraviolet radiation.
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, a low-cost and modirately, accurate portable device for measuring solar ultraviolet radiation (UV) was developed at Silpakorn University in Nakhon Pathom (13.82ºN, 100.04ºE). The aim of the development of ... -
A Preliminary Study of Atmospheric Water Vapour in Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, a preliminary study of atmospheric water vapour in Thailand was carried out. The work consists of two parts. The first part was the development of a model for estimating precipitable water and the second ... -
A study of Cambodian - Thai cross - boundary aerosols
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 18/6/2021)In this study, cross - boundary aerosols from Cambodia to Thailand during aerosol episode in December 2018 - February 2019, December 2019 - February 2020 and December 2020 - February 2021 were investigated. The investigation ... -
A study of cloud base height and cloud cover at a tropical site in northern Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 17/8/2018)The objectives of this research are to investigate the cloud base height (CBH) and cloud cover at tropical site (17.79๐N, 98.43๐E) in northern Thailand. A ceilometer was installed at the at the site to measure CBH during ... -
A Study of Diffuse Solar Ultraviolet Radiation from The Measurements at 4 Stations in the Main Regions of Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this research, diffuse solar ultraviolet radiation (EUV) from four measuring stations in the main regions of Thailand, namely Chiang Mai (CM, 18.78°N, 98.98°E), Ubon Ratchathani (UB, 15.25°N, 104.87°E), Nakhon Pathom ... -
A study of optical properties of aerosols at Lopburi province by using a spectroradiometer modified for measuring spectral direct radiation
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, a spectroradiometer for measuring spectral global solar radiation was modified by covering its glass dome with a collimator to allow direct radiation to be incident on the sensor of this instrument. Then this ... -
A study of solar near infrared global and diffuse radiation in Thailand from ground and satellite-based data
Collection: Theses (Ph.D) - Physics / ดุษฎีนิพนธ์ - ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)In this work, global and diffuse solar near infrared radiation (SNIR) were measured at four stations in Thailand namely, the Meteorological Center in Chiang Mai (18.78°N, 98.98°E), the Meteorological Center in Ubon ... -
A study of solar radiation spectrum from data collected at Nakhon Pathom station
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/6/2020)In this work, the performance of three direct solar spectral models under clear sky condition and three diffuse solar spectral model under clear sky condition were investigated. The spectral values calculated from the model ... -
A study of solar ultraviolet radiation under clear sky condition measured at stations situated in main regions of Thailand
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/6/2020)In this study, global and diffuse solar erythemal ultraviolet radiation under clear sky condition measured at stations localed in main regions of Thailand was analysed. These stations are Chiang Mai (18.78 °N, 98.98 °E) ... -
A Study of Spectral Solar Radiation Models under cloudless skies
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 12/7/2019)Comparisons of the models for estimating direct-beam and diffuse horizontal solar spectral irradiances under cloudless sky conditions were examined with the direct-beam and diffuse horizontal solar spectral irradiances ... -
A study of solar ultraviolet radiation at a solar monitoring station of Silpakorn University in Nakhon Pathom
Collection: Theses (Master's degree) - Physics / วิทยานิพนธ์ – ฟิสิกส์Type: Thesis(Silpakorn University, 17/8/2018)In this work, spectral solar ultraviolet (UV) radiation was measured during 2015-2017 using a spectroradiometer at Silpakorn University (13.82๐N, 100.04๐E) in Nakhon Pathom. In addition, spectral UV data obtained from this ...