Thus, compact heat exchangers (CHEs) technologies are expected to be one of the solutions for this new generation of solar receiver. This paper reviews various technologies of CHE used in industry or still being tested in the laboratory to provide useful insights into the design of solar receiver.
Abstract. Concentrating solar power (CSP) development has focused on increasing the energy conversion efficiency and lowering the capital cost. To improve performance, CSP research is moving to high-temperature and high-efficiency designs. One technology approach is to use inexpensive, high-temperature heat transfer fluids and storage,
A new MS-to-sCO 2 heat exchanger design between the solar field and the power cycle in supercritical STPPs is proposed in this work. This design is based on the printed circuit heat exchanger (PCHE), with a conventional semi-circular channel for sCO 2 and a circular channel of greater hydraulic diameter, for the molten salt.
Solar water heating systems use three types of heat exchangers: Liquid-to-liquid A liquid-to-liquid heat exchanger uses a heat-transfer fluid (often a mixture of propylene glycol and water) that circulates through the solar collector, absorbs
The preheater, steam generator, superheater and the reheater are commonly referred to as the solar power plant heat exchangers. In a number of applications, molten salt heat exchangers are used to facilitate power generation at night (thermal storage).
Solar thermal power plants coupled to supercritical CO2 cycles have high efficiency. • A new design of the molten salt - to - supercritical CO2 heat exchanger is presented.
Granular assemblies, commonly referred as packed particle beds, are ubiquitous in specific industrial applications such as concentrated solar power plants (CSPs) and nuclear reactors (Calderon et al., 2018, Diago et al., 2018, Gonzalo, 2019).Packed bed systems comprise two states of matter such as solid–gas flows coupled with heat transfer; this entire system is
Heat Exchangers This section covers heat exchangers with an emphasis on ones that can be DIY projects. Heat Exchangers for Solar Water Heating Chuck Marken How to get articles from Home Power Home Power magazine article, issue 92. Good overview of the various types of heat exchangers. Pro and cons of each. Not a lot of sizing information.
U.S. researchers have developed a heat exchanger material for advanced high-temperature Concentrated Solar Power plants that can be manufactured at lower costs than existing materials, project leaders told New Energy Update.
In this experimental work, a prototype of a hybrid solar–thermal–photovoltaic (HE-PV/T) heat exchanger has been designed, built, and characterized, with rectangular geometry and 12 fins inside, to obtain better heat flow and higher performance in order to achieve a better heat transfer coefficient, reducing and optimizing the
S. Chantasiriwan [85] used models of thermal power plants, parabolic trough collectors, oil-water heat exchangers, and feed water heaters to compare the power outputs obtained by integrating solar feed water heating systems into a thermal power plant. The results of a numerical analysis done on a case study of a 50-MW power plant show that the total heating
Thus, compact heat exchangers (CHEs) technologies are expected to be one of the solutions for this new generation of solar receiver. This paper reviews various technologies of CHE used in industry or still being tested in the laboratory to provide useful insights into the
In solar energy systems, the heat exchanger transfers the heat captured through solar radiation to another working fluid. Solar thermal energy can be used both to supply thermal energy in a heating system and solar thermal power plants. Other examples of standard heat exchangers are the car radiator and the heater for domestic heating.
Researchers have designed a solar panel with a unique heat exchanger that boosts efficiency and addresses durability concerns.
One of the ways to make cost-competitive electricity, from concentrated solar thermal energy, is increasing the thermoelectric conversion efficiency. To achieve this objective, the most promising scheme is a molten salt central receiver, coupled to a supercritical carbon dioxide cycle. A key element to be developed in this scheme is the molten salt-to-CO2 heat
A new design, based on the printed circuit heat exchanger technology is proposed, that withstands the pressure difference and avoids the molten salt plugging when circulating through...
A critical component of the Concentrated Solar Power (CSP) system is the solar receiver. This component will transfer heat to pressurized air that will generate electricity. The solar receiver will be operated at temperatures up to 900 °C and pressure in the range of 10 bar. There are major high temperature design, materials availability, and fabrication issues that
A new design, based on the printed circuit heat exchanger technology is proposed, that withstands the pressure difference and avoids the molten salt plugging when circulating through...
This work is focused on one of the main challenges of this scheme: the source heat exchanger transferring the thermal energy from the molten salt in the solar field to the CO2 in the power cycle
A robust ceramic/refractory metal (ZrC/W)-based composite for use in heat exchangers in concentrated solar power plants above 1,023 kelvin is described, having attractive high-temperature thermal
The Department of Energy (DOE) recently announced a Phase III, $25 million award to Sandia National Laboratories to build, test, and demonstrate a next-generation Concentrating Solar Thermal Power (CSP) plant at the National Solar Thermal Test Facility (NSTTF) in Albuquerque, New Mexico.
The company Maustronik from Kassel in Germany has developed a new concept to utilise the heat under the solar modules efficiently. The new PVT principle is very promising: Roof heat exchangers are installed underneath the modules at the top and bottom ends of a photovoltaic system.
A solar heat exchanger is a device designed specifically to do this task in a solar thermal system. Cold water - a heat transfer fluid - enters the solar collector, and solar radiation hits the collectors' surface area, heating the water flowing through them.
Thus, compact heat exchangers (CHEs) technologies are expected to be one of the solutions for this new generation of solar receiver. This paper reviews various technologies of CHE used in industry or still being tested in the laboratory to provide useful insights into the design of solar receiver.
Solar thermal energy can be used both to supply thermal energy in a heating system and solar thermal power plants. Other examples of standard heat exchangers are the car radiator and the heater for domestic heating. A heat exchanger is a device designed to transfer heat between two media that are separated by a barrier or that are in contact.
In the first step of the manufacturing process, fine grooves are photo-chemically etched into one side of a flat metal plate forming the fluid passages. The etched-out plates are thereafter alternately joined by diffusion bonding, which is the second step and results in compact, extremely strong, all-metal heat exchanger cores.
As a simple proposal, the shell-and-tube heat exchanger could be proper for this layout, with the sCO 2 circulating inside the tubes and the MS through the shell. However, due to the high pressures of the sCO 2, the increase in the tubes thickness can lead to a limited performance of these HXs.
The dry cooling is also assumed in the three cycles, so the pre-cooler (PC) and the intercooler (IC) (the latter one is only presented in the partial-cooling and intercooling layouts), are air-cooled heat exchangers. These HXs are modeled as compact heat exchangers (CHXs) with finned circular tubes, core sCF-734 ( Hruska et al., 2016).
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