NEP PARABOLIC TROUGH COLLECTOR FIELD SIMULATOR

NEP Parabolic Trough Collector (PTC) Field Simulator

This application simulates the NEP parabolic trough collector (PTC) field at PSA. Simulation results are compared against experimental data from the real facility at CIEMAT - Plataforma Solar de Almería (PSA). An experimental campaign was perform in order to calibrate and validate the dynamic model. The dynamic PCT field model is implemented in Modelica and make use of the open source ThermoCycle library.

The NEP Field

Polygeneration is an integral process for the purpose of producing two products from one or several resources. In the case of solar energy, it makes use of the thermal energy from a solar field for several simultaneous applications, such as generating electricity, desalinating water for drinking water supply and the rest for heating sanitary water.

NEP

The purpose of this facility is preliminary study of the behaviour of a parabolic trough solar field of small concentration ratio, determination of its feasibility as a heat source in polygeneration schemes, in particular in CSP+D requiring temperatures around 200 °C. The collector selected was the Polytrough 1200 prototype by NEP Solar. It has a production of 15.8 kW per module (0.55 kW/m2) under nominal conditions, with a mean collector temperature of 200 °C, and an efficiency over 55 % in the range of 120-220 °C (for 1000 W/m2 of direct normal irradiance).

The field is configured in 8 collectors placed in 4 parallel rows, with two collectors in series in each row. This configuration supplies 125 kW of thermal energy. The temperature of the thermal oil can be up to 220 °C, so different schemes for making use of the thermal energy for polygeneration can be evaluated.

Currently the solar field is going to be used to generate steam for supplying the double-effect absorption heat pump coupled to the PSA MED plant.

Simulator Details

Date: Oct 29, 2017
Author/s: Jose A. Carballo, Javier Bonilla
Contact: Javier Bonilla
Email: javier.bonilla@psa.es
Tagged: Solar, Parabolic Trough Collector (PTC), Thermal Energy
Website: https://gitlab.com/ciemat-psa/surf/tree/master/examples/NEP

Changelog

Version: 0.1
Date: Oct 29, 2017
Description: First version.

Windows app Linux app

Related Works.

HEAT TRANSFER BASICS SIMULATOR

THERMAL ENERGY STORAGE (TES) TANK SIMULATOR

SOLARTHERMOPRO SIMULATOR

EUROTROUGH PARABOLIC TROUGH COLLECTOR SIMULATOR

NEP PARABOLIC TROUGH COLLECTOR FIELD SIMULATOR

About

Surf is an open-source tool chain for building powerful multi-platform simulators of Functional Mock-up Units (FMUs) in an easy and convenient way.

Our Bunker

Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT),
Plataforma Solar de Almería (PSA),
Ctra. de Senés km. 4,5, Tabernas (04200), Almería, Spain.