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The Monte Carlo ray tracing method is applied and coupled with finite volume  numerical methods to study effect of rotation on outlet temperature and heat  gain of LS-2 parabolic trough concentrator (PTC). Based on effect of  sunshape, curve of mirror and use of MCRT, heat flux distribution around of  inner wall of evacuated tube is calculated. After calculation of heat flux,  the geometry of LS-2 Luz collector is created and finite volume method is  applied to simulate. The obtained results are compared with Dudley et al test  results for irrotational cases to validate these numerical solving models.  Consider that, for rotational models ,the solving method separately with K.S.  Ball's results. In this work, according to the structure of mentioned  collector, we use plug as a flow restriction. In the rotational case studies,  the inner wall rotates with different angular speeds. We compare results of  rotational collector with irrotational. Also for these two main states, the  location of plug changed then outlet temperature and heat gain of collector  are studied. The results show that rotation have positive role on heat  transfer processing and the rotational plug in bottom half of tube have  better effectual than upper half of tube. Also the contribution of rotation  is calculated in the all of case studies. Working fluid of these study is one  of the oil derivatives namely Syltherm-800. The power of wind can be used to  rotate tube of collector

The effect and contribution of wind generated rotation on outlet temperature and heat gain of LS-2 parabolic trough solar collector