Semantic Scholar extracted view of "Thermal hydraulic RELAP5 model for a solar direct steam generation system based on parabolic trough collectors operating in once-through mode" by J. Serrano-Aguilera et al.
from a central pylon supporting the hydraulic drive system 7 . Each part is composed by an equal number of identical collector elements, connected mechanically in series.
30-year power purchase agreements with Southern California Edison Hybrid plants 75% solar, 25% natural gas Luz LS-1, LS-2, and LS-3 parabolic trough collector technology. SEGS …
Parabolic Trough Solar Collectors: Thermal and Hydraulic Enhancement Using Passive Techniques and Nanofluids systematically and methodically examines all aspects of the essential and basic elements of parabolic trough solar collector (PTSC) design and performance enhancement techniques.
To better understand the characteristics of a large-scaled parabolic trough solar field (PTSF) under cloud passages, a novel method which combines a closed-loop thermal hydraulic model (CLTHM) and cloud vector (CV) is developed. Besides, the CLTHM is established and validated based on a pilot plant. Moreover, some key parameters which are used to characterize a …
circulates it through the hydraulic system to drive the actuators. Hydraulic fluid is typically chosen for its excellent ... use of available solar resources. 1. First type/First class lever: In the first type of lever, the fulcrum is in between load and effort. ... solar tracking parabolic trough collector Adelaide, Australia Indiana ...
The patented SOLABOLIC® parabolic trough will do the same for the concentrated solar power (CSP) industry and achieve system dimensions nearly twice the size of the industry standard …
Solar energy is a most promising resource of non-conventional energy to utilize for heating. Based on the application there are two kinds of utilization one is water heating and the second one is air heating. This is generally done by flat plate solar collector but due to its limitations to use in higher temperature ranges (i.e., 70–95 °C) and poor performance led to …
The thermal stress-induced deformation issue of receiver is crucial to the performance and reliability of a parabolic-trough (PT) concentrating solar power (CSP) system with the promising direct steam generation (DSG) technology. The objective of the present study is to propose a new-type receiver with axially-hollow spiral deflector and optimize the …
Abstract. The implementation of direct steam generation in linear concentrators is limited mainly by the complexity and the high demand for computational resources of the models developed to predict the installation behavior. With this in mind, we introduce an innovative methodology to characterize the thermo-hydraulic behavior of direct steam …
Thermal hydraulic RELAP5 model for a solar direct steam generation system based on parabolic trough collectors operating in once-through mode ... approach. The broad use of this type of models is a consequence of their simplicity and reduced computing cost. ... A three-dimensional simulation of a parabolic trough solar collector system using ...
A sun-tracking system for parabolic trough solar concentrators (PTCs) is a control system used to orient the ... A parabolic trough is a type of solar thermal collector that ... Hydraulic drive ...
A circulating fluid flows inside a linear receiver to transport the absorbed heat. A solar parabolic-trough collector line is divided into two parts from a central pylon supporting the hydraulic drive system [7]. Each part is composed by an equal number of identical collector elements, connected mechanically in series.
Fig. 2. Functional thermodynamic process flow of a solar plant. A solar parabolic-trough collector line is divided into two parts from a central pylon supporting the hydraulic drive system (Antonaia et al., 2001). Each part is composed by an equal number of identical collector elements, connected mechanically in series. Each
The parabolic trough collector (PTC) is a matured and an important category of concentrating-type solar collector which provides temperature in the range of 200 to 400 °C (Tiwari et al. 2021) with higher thermal efficiency compared to other concentrating-type collectors.
Parabolic trough power plants use parabolic trough collectors to concentrate the direct solar radiation onto a tubular receiver. Large collector fields supply the thermal energy, which is used to drive a steam turbine, which, on its part, drives the electric generator. Figure 1:
A circulating fluid flows inside a linear receiver to transport the absorbed heat. A solar parabolic-trough collector line is divided into two parts from a central pylon supporting the hydraulic drive system [6]. Each part is composed by an equal number of identical collector elements, connected mechanically in series.
PDF | On Jan 1, 2016, Jinping Wang and others published Design and Implementation of PLC-Based Automatic Sun tracking System for Parabolic Trough Solar Concentrator | Find, read and cite all the ...
Comparing Hydraulic Drive Systems to Other Types. While hydraulic drive systems command an orchestra of prowess, they share the stage with various other drive system maestros in the world of robotics. Electric drive systems draw on the electric current to animate motion, wielding precision and cleanliness.
A parabolic trough system is a type of solar thermal power technology that uses long, curved mirrors to concentrate sunlight onto a receiver tube. The receiver tube is filled with a heat transfer fluid, which is heated by the concentrated sunlight and used to generate steam to drive a turbine and generate electricity. There are several ...
High-quality Hydraulic Systems for Parabolic Trough and Central Power Technology. Hine delivers the production capacity and flexibility to offer solar energy customers a comprehensive package of quality products and full …
2.2 Dynamics of Single-Axis Drive Systems DC motors and other types of actuators are used to drive individual axes of a robotic system. Figure 2.2.1 shows a schematic diagram of a single-axis drive system consisting of a DC motor, a gear head, and arm links1. An electric motor, such as a DC motor, produces a relatively
Solar tracking systems studies in various countries. 757 758 Authors Year Country & Location Solar Tracking Method (Single or Dual) Solar Tracking Mode (Active, Passive, Manual) Solar Tracking Type [1] [86] Zhao et al. Wu et al. 2016 2016 Single Single, Dual Active Active [44] [45] [87] Fathabadi Hong et al. Gholinejad et al. 2016 2016 2016 ...
Solar tracking systems studies in various countries. 757 758 Authors Year Country & Location Solar Tracking Method (Single or Dual) Solar Tracking Mode (Active, Passive, Manual) Solar Tracking Type [1] [86] Zhao et al. Wu et al. …
The OnSun drive system uses a helical sliding spline hydraulic rotary actuator, the Helac L30 series actuator. The L30 series and its predecessors have been in volume production for 25 years with more than 100,000 units delivered to military, mining and heavy equipment customers for use in extreme operating environments.
trough stands the best option to use for solar heat transfer application. Subramanian et al. (2021) did a comparative functioning of non-tracking parabolic trough solar collec-tors using various shield surfaces and they found aluminum will give maximum eciency as compared with other shield surfaces.
HYDAC solar tracking. Our electric and hydraulic solar tracking is suited to all standard point focussing and line focussing power plants, single axis and duel axis. Whether it''s custom-made or from standardised production – HYDAC has …
D. Upper Trough The upper trough is constructed of 0.375 in. (10 mm) minimum carbon steel, stiffened to withstand hydraulic forces and falling slag impact. Typically, the bottom of the trough sections are lined with renewable 1 in. (25 mm) AR400 abrasion-resistant steel for longer wear life. Superior System Operation
Abstract. Conventional desalination technologies like multi stage flashing, multi-effect desalination (MED) using steam as motive fluid can be made sustainable by obtaining the motive steam from solar thermal systems. In this study, a transient simulation has been performed to determine the dissimilitude in pressure drop and dryness fraction, of working fluid …
Progress in beam-down solar concentrating systems. Evangelos Bellos, in Progress in Energy and Combustion Science, 2023. 1.1.1 Parabolic trough collector. Parabolic trough solar collector is the most mature solar concentrating technology [22] which is used for power production [23], as well as for a series of applications like solar cooling [24], desalination [25], …
In this study, we numerically investigated the effect of swirl inserts with and without nanofluids over a range of Reynolds numbers for parabolic trough collectors with non-uniform heating. Three approaches were utilized to enhance the thermal-hydraulic performance—the variation of geometrical properties of a single canonical insert to find the …
The invention discloses a hydraulic drive device of a parabolic trough condensing solar collector. The device comprises a condensing collector, a tracking hydraulic drive unit, a control circuit, an energy storage unit and a generating mechanism, wherein the tracking hydraulic drive unit is connected with the condensing collector, the control circuit and the energy storage unit; …
In this work we propose to model a 7.5 kWe power generation system, implementing a Parabolic Trough Collector system, coupled to an Organic Rankine Cycle (PTC/ORC) and a bladder-type hydraulic ...
The AAL-TroughTM 4.0 is the fourth generation of Aalborg CSP''s parabolic trough technology designed to meet industrial energy challenges in a renewable and cost …
To fabricate the solar air heater, one ended evacuated tube is used as a receiver of the parabolic trough and U-tube copper pipe is inserted within the evacuated tube.
Parabolic trough (solar) collectors (PTCs) are technical devices to collect the energy in form of solar radiation and convert it typically into thermal energy at temperature ranges of 150–500°C at industrial scale. ... Unit consisting of motor and gear or hydraulic drive with valves and cylinders, and the controller to turn the PTC into the ...
This thesis documents Katarina Popovic''s contribution to the design of hydraulic cylinder actuation system for day to day solar trough sun tracking, a semester long project within 2.752 ... Parabolic trough is a type of solar thermal collector that works by focusing sun rays onto ... The proposed drive system must be designed to interface with ...
Parabolic trough solar collectors are a type of solar thermal collector that can be used to generate electricity. This paper discusses the potential advantages and challenges of using parabolic trough solar collectors. ... The primary components of a tracking system are control unit, hydraulic or pneumatic system and electric motor gearbox. A ...
The utilization of solar energy is of great significance to alleviate energy shortage and environmental problems. In view of the different thermal grade requirements of electricity production and water desalination in remote arid areas as well as to improve the performance of the parabolic trough receiver (PTR), a novel solar cascade heat collection …
The hydrostatic drive can be described as a hydraulic system where a hydraulic pump runs the motor using fluids. Parts of a Hydrostatic Drive . The hydrostatic drive consists of: Transmission case - The part of the hydrostatic drive system that holds the components in place. It also holds the fluid transfer as well.
Parabolic trough solar collectors are a type of solar thermal collector that can be used to generate electricity. This paper discusses the potential advantages and challenges of …
Concentrating solar collectors mainly consist of an intercepting reflective surface series for focusing solar radiation on a remarkable small area [46], where high temperature heat is collected [47].CSP is classified into a point and line focusing system [48].The line focusing system is a concentrator that linearly concentrates solar intensity on a single-line tube [49].
commands enable parabolic trough solar concentrator running from east to west or west to east and track the sun. The control system by PLC controller system and field equipment constitute a feedback closed-loop control system based a rotary encoder. Hydraulic drive Parabolic trough solar collector Rotary encoder Sun tracking program Protection ...
The two primary approaches are non-concentrating collectors and concentrating collectors. Among the concentrating collectors, the Parabolic Trough Solar Collector (PTSC) stands out as a widely adopted type. Its extensive use in solar systems over many years attests to its well-established and effective nature (Keshavarzzadeh and Ahmadi, 2019).
Direct steam generation (DSG) in parabolic trough collector (PTC) is an efficient and feasible option for solar thermal power generation as well as for industrial process heat supply. The two-phase flow inside the absorber tube complicates the thermo-hydraulic modeling of the DSG process. In the present work, a thermo-hydraulic model is developed for the DSG …
To fabricate the solar air heater, one ended evacuated tube is used as a receiver of the parabolic trough and U-tube copper pipe is inserted within the evacuated tube.
PDF | On Jan 1, 2016, Jinping Wang and others published Design and Implementation of PLC-Based Automatic Sun tracking System for Parabolic Trough Solar Concentrator | Find, read and cite all the ...
