Use of simulation tools for solving the field problems of solar thermal plants
Student name: Mr Neeraj Nair
Guide: Dr Najmur Rahman
Year of completion: 2014
Host Organisation: STEAG Energy Services (India) Pvt Ltd.
Supervisor (Host Organisation): Mr V S Sharma
Abstract: The work presented here is based on the use of computer-based simulation tools for
finding solutions to field problems of solar thermal plants. The work mainly comprises of
two such studies based on simulation exercises.
(1) Optimization of solar field and thermal energy store (TES) size for a solar thermal
power plant – a problem which is of special relevance to investors and designers to ensure
techno-commercial feasibility of projects, and
(2) Developing a simulation based metering methodology for ascertaining the share of
solar in a hybrid solar and fossil-fuel powered thermal power plant – a pressing problem,
relevant to policy makers and regulatory bodies, impeding the promotion of solar thermal
energy in India.
The capabilities of the simulation tool EBSILON® Professional has been used in both
these studies. Simulation models and methods have been developed for both cases. The
results of the first study shows the efficient use of simulation methods in finding LCoEminimal
optimum field sizes for solar thermal power plants with varying TES capacities.
The second study has established the need for the use of simulation tools in developing a
robust metering methodology for measuring the solar share in hybrid thermal power
plants. The metering tool proposed can be deployed for online metering in a power plant
by use in conjunction with the plant’s distributed control system (DCS).
Keywords: Solar thermal power, concentrating solar systems, simulation tools, solar field
sizing, TES, LCoE, hybridized power plants, off-design, feed-water pre-heating
