01454nas a2200181   4500000000100000008004100001100001700042700001400059700003000073700002000103700001900123245008400142856004600226300001200272490000700284520096700291020001401258       2017                            d1 aV. Venkatesh1 aBadri Rao1 aGopalakrishnan Srilakshmi1 aN.C. Thirumalai1 aM.A. Ramaswamy00aCorrelation between central receiver size and solar field using flat heliostats  uhttps://doi.org/10.3103/S0003701X17030124  a258-2660 v533 aIn Central Receiver Systems (CRSs), thousands of heliostats track the sunrays and reflect beam radiation on to a receiver surface. The size of the reflected image and the extent of reflection from the heliostats are one of the important criteria that need to be taken into account while designing a receiver, since spillage losses may vary from 2 to 16% of the total losses. The present study aims to determine the size of an external cylindrical receiver, such that the rays reflected from all the heliostats in the field are intercepted. A dimensionless correlation with respect to tower height and receiver size (diameter and height) as a function of heliostat size and its position is discussed in the paper. This correlation could be used as a first-order approximation to estimate the receiver dimensions. When applied to the Ivanpah Solar Electricity Generating Station (ISEGS) plant, the correlation yields satisfactory estimation of receiver dimensions.  a1934-9424