01783nam a22001217a 4500082001300000100006600013245010700079260003000186300000900216500135000225700005401575856003201629  aR/IMS-20  aNeelam Seher Naz a15MEESE06aSupervisor - Dr. Asif Ali Memon  aAnalysis of Empirical Models for Estimation of Global Solar Radiations From Meteorological Parameters   aNawabshah:bQUEST,c2019.  a40p.  aABSTRACT

The data of solar radiations are not easily available especially i n developing countries like Pakistan. The data required for estimation of solar radiation is also not easily available in our country. Thus, different models are used for the measurement and determination of global solar radiation at different locations using different parameters. For Pakistan, very limited data is available at only five locations namely Quetta. Karachi, Multan, Lahore and Peshawar . These locations have differential features depending upon their geographical location . This study was carried out t o estimate global solar radiation using models from temperature data acquired from Pakistan Meteorological Department. The model constants were determined u sing linear regression method . The maximum , minimum and average model estimated global solar radiation  level  from  1st August  to 31st  October, 2017 were  7879, 55 I 7 and  5669
W/m2/day against the measured values of 8019, 5407 and 6769 W/m 2/day with an error
of 0.53 respectively. Since the temperature data  was used  for estimation  of solar radiations. However, other parameters may give less error but the data is not easily accessible and not measured in most places. It is concluded that the proposed model given acceptable estimations of solar radiations with ± 53 % error.
  aDepartment of Energy and Environment Engineering   uhttp://tinyurl.com/zh92rb89