Prediction of Solar Radiation using Empirical Models over Lowland Region Nepal

Authors

  • A. K. Pokhrel Department of Physics, Amrit Science Campus, Tribhuvan University (TU), Thamel, Kathmandu, Nepal
  • H. P. Adhikari Department of Physics, Patan Multiple Campus, TU, Lalitpur, Nepal
  • U. Joshi Department of Physics, Patan Multiple Campus, TU, Lalitpur, Nepal
  • B. R. Tiwari Department of Applied Sciences and Chemical Engineering, Pulchowk Campus, IOE, TU, Nepal
  • B. R. KC Department of Physics, Mahendra Multiple Campus, TU, Nepalgunj, Nepal
  • K. N. Poudyal Department of Applied Sciences and Chemical Engineering, Pulchowk Campus, IOE, TU, Nepal

DOI:

https://doi.org/10.3126/jnphyssoc.v9i1.57598

Keywords:

meteorological parameters, global solar radiation, empirical model, seasonal variation, regression technique, empirical coefficients

Abstract

Renewable energy sources are becoming more and more popular as a result of the world's rapidly rising energy needs and the depletion of fossil fuel stocks. Solar energy significantly increases the need for electricity. Due to high energy demands, solar energy most viable out among all of energy sources. Before choosing a location for a solar-powered power plant, it is necessary to predict or anticipate solar energy. For the estimation of the solar energy we use meteorological parameters such as sunshine hour, temperature and relative humidity on selected empirical models to find the empirical coefficients at the study site Biratnagar (Lat. 26° 27' 15" E, Long. 87° 16' 47" N, and alt. 72 m) Nepal. Regression technique is utilized on meteorological parameters including global solar radiation at different models viz. Angstrom-Prescott (A-P) model, Ogunlade model, Gopinathan model and Hargreaves model. Among the four models, the A-P model is better than other models by analyzing the statistical tools. Finally, the empirical constants of A-P model and are found. The finding coefficients can be used to estimate the solar radiation and solar energy at similar geographical locations of Nepal.

Downloads

Download data is not yet available.
Abstract
78
PDF
67

Downloads

Published

2023-08-25

How to Cite

Pokhrel, A. K., Adhikari, H. P., Joshi, U., Tiwari, B. R., KC, B. R., & Poudyal, K. N. (2023). Prediction of Solar Radiation using Empirical Models over Lowland Region Nepal. Journal of Nepal Physical Society, 9(1), 51–57. https://doi.org/10.3126/jnphyssoc.v9i1.57598

Issue

Vol. 9 No. 1 (2023)

Section

Articles

License

All right reserved. No part of this Journal may be reproduced in any form or by any electronic or mechanical means, including information storage and retrieval system, without permission in writing from the publisher, except by a reviewer who may quote brief passage in a review. The views and interpretation in this journal are those of author(s) and they are not attributable to the NPS.