Transient Simulation of High Temperature High Pressure Solar Tower Receiver

Abstract

A solar receiver undergoes frequent transients events and the nature of these transient events is very different from conventional thermal power plants. The SRSG (Solar Receiver Steam Generator) operates during the day when heat from the sun is available and is shut-down during the night. Along with the daily start-up and shut-down, it also undergoes various other transient events including short or long cloud events followed by hot-start, partial load transient during light cloud events, cold start-up transients (after extended shut-down events) and failure modes. The operation and control strategy for the SRSG should incorporate safe operation during all the transient events while optimizing on power generation. It is therefore important to model the SRSG and study the dynamic response of the SRSG under various transient conditions. This paper discusses modeling of Alstom SRSG using the APROS dynamic simulation platform. The paper describes in detail various components of high pressure, high temperature SRSG along with the need for transient modeling during the design phase. It provides details of various transient events that were simulated along with a discussion on the simulation results. The paper highlights the optimized modes of operation procedure developed using transient modeling along with control strategies.

Advances in Process Modelling and Simulation of Parabolic Trough Power Plants: A Review

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Thermal analysis of phase change materials storage in solar concenter

“…Sharma et al, and Lentswe et al, conducted an in-depth examination of solar thermal applications that can advantage from the advent of Sensible Heat Storage (SHS) technologies, economic repercussions of SHS systems are examined in this context as well as environmental [2,3]. Thermal performance was investigated experimentally for SHS-integrated solar water heaters [4,5,6]. It is high storage density and heat storage and removal capabilities at near constant temperature during processes of chargingdischarging makes a thermal capacity store, based on the concept of latent heat, a viable alternative to solid-state storage (SHS).…”