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Electricity is a kind of clean and high-grade energy. Many countries have introduced time-of-day electric tariff policies [3, 4] to improve the generation efficiency of power plants and shave the peak load.However,
1 INTRODUCTION Buildings contribute to 32% of the total global final energy consumption and 19% of all global greenhouse gas (GHG) emissions. 1 Most of this energy use and GHG emissions are related to the operation of heating and cooling systems, 2 which play a vital role in buildings as they maintain a satisfactory indoor climate for the
This article describes the use of solar energy under cold conditions from various aspects: greenhouses, buildings and housing, heat pumps, heat storage, PV
Global cold demand accounts for approximately 10-20% of total electricity consumption and is increasing at a rate of approximately 13% per year. It is expected that by the middle of the next century, the energy consumption of cold demand will exceed that of heat demand. Thermochemical energy storage using salt hydrates and phase change
1. Introduction Chinese solar greenhouse (CSG) is a unique type of horticultural facility in northern China, with the characteristics of high efficiency, energy saving and low cost [[1], [2], [3]].According to statistics, as of 2019, the CSG area in China reached 570,000
Section snippets Solar energy storage Solar energy is an attractive substitute for conventional fossil fuels for heating applications [38]. There are many ways of utilizing solar energy such as solar photovoltaic, solar hot water and solar lighting [39], [40], [41]. The
Thermal energy storage at temperatures in the range of 100 °C-250 °C is considered as medium temperature heat storage. At these temperatures, water exists as steam in atmospheric pressure and has vapor pressure. Typical applications in this temperature range are drying, steaming, boiling, sterilizing, cooking etc.
Global solar radiation at the Earth''s surface consists of direct and diffuse radiation. Direct radiation is also known as direct normal irradiance (DNI). Parabolic trough collectors mainly use DNI [19].We chose Meteonorm software to provide DNI data [24], which has been validated by actual heliostat measurements (global horizontal irradiance)
Solar energy can satisfy an important portion of heating and thermal needs in cold climate regions either directly (passive heating and/or hot water) or by supporting heat pump systems. The optimal system depends on the quality of the insolation, the heating needs as well as the geothermal potential of the site.
Seasonal storage of solar thermal energy through supercooled phase change materials (PCM) offers a promising solution for decarbonizing space and water
A novel hybrid power/thermal-to-hydrogen energy storage scheme is applied to DES. • Multi-objective optimization is conducted for optimal configurations of the DES. • A case study of DES is performed in different climate regions of China. •
We present more than one-year of monitoring results from a thermal energy storage system located in a very cold place with a long winter season. The studied house is in Palmer city, Alaska (~62° N, ~149° W). The house is equipped with solar PV for electricity production and solar thermal collectors which were linked to a sensible
A storage-type heat pump system is investigated for efficient supply in cold region. • Energy from subcooler and condensation thermal accumulator could be recovered. • Condensation heat utilization efficiency
Abstract. Various technologies are used in thermal energy storage (TES). Depending on the type of technology used, residual thermal energy allows for the storage and use of thermal energy for certain periods of time, at scales varying from individual process, residential, public, and industrial buildings, district, town, or region.
For instance, the Redstone Solar Thermal Power plant will use a mix of thermal energy storage and solar power to supply power during peak demand periods for over 200,000 South African
Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plant in north-western China using TRNSYS
In this paper, a novel strategy of concrete curing was developed by solar thermal energy storage based on phase change material (PCM), in order to prevent concrete from frost damage at early age and promote the rapid growth of concrete strength in cold climate.
There is limited research of solar thermal energy storage systems for residential use, especially in cold places like Akaka. In this work, we will provide detailed results
Solar thermal energy storage based on PCM was developed to cure concrete in cold climate. The influence is clear in such extremely cold regions including Canada, Northern Europe and Northern China, etc
In a concentrating solar power (CSP) system, the sun''s rays are reflected onto a receiver, which creates heat that is used to generate electricity that can be used immediately or stored for later use. This enables CSP systems to be flexible, or dispatchable, options for providing clean, renewable energy. Several sensible thermal energy storage
At the same time, the cold storage fluid is demanded from the bottom part of the thermocline. In the discharging process, High-temperature solid-media thermal energy storage for solar thermal power plants Proc IEEE, 100 (2011), pp. 516-524, 10.1109 [36],
7.2.2.2 Underground Storage. Underground thermal energy storage (UTES) is also a widely used storage technology, which makes use of the ground (e.g., the soil, sand, rocks, and clay) as a storage medium for both heat and cold storage. Means must be provided to add energy to and remove it from the medium.
They reported that 91% of the building''s heating requirements could be satisfied by this system. Getu et al. investigated the application seasonal solar thermal
Abstract. This paper performed analyses on a proposed direct wind-powered heat pump integrated with a pond which serves as an evaporator for space heating in cold regions. The analysis was conducted using environmental data for selected locations in Canada and the engineering equation solver (EES). Three different pairings
1. Introduction Concentrated solar power (CSP) plants are increasingly becoming one of the major renewable energy sources. Like conventional thermal power plants, wet cooling, either once-through or recirculating, is important for CSP plants to effectively condense
SM is the ratio between the thermal power produced by the solar field at the design DNI and the thermal power required by the power block at nominal conditions [21]. TES hours represent the nominal TES capacity and correspond to the period that the storage system can supply energy at the power cycle''s full-load operation [22] .
This review highlights various research studies conducted recently on the use of solar energy under cold conditions. Many aspects are covered: greenhouses, buildings and housing, heat pumps, heat storage, PV panels, solar thermal and PV/T, high-latitude issues, cooling, and policies. Despite the differences between these domains of
This paper aims to explore an efficient, cost-effective, and water-saving seasonal cold energy storage technique based on borehole heat exchangers to cool the
For regions with an abundance of solar energy, solar thermal energy storage technology offers tremendous potential for ensuring energy security, minimizing carbon footprints, and reaching sustainable development goals. Global energy demand soared because of the economy''s recovery from the COVID-19 pandemic. By mitigating
the thermal insulation and heat storage capacityof the CSG need to be further improved[10,18].The highlatitudes andcold regions are the latitude greater than 40 N or the minimum winter tempera-
Abstract : This review paper discusses various aspects of solar-powered cold storage with thermal energy storage backup. The paper provides insights into the development and designing of solar-hybrid cold storage systems for on-farm preservation of perishables. It covers the guidelines for testing set up and testing procedures for solar cold
Thermal storage units have a wide range of applications in solar energy systems, such as solar preheaters and desalinations (Faegh and Shafii, 2017). In addition, latent heat thermal storage units have been used for thermal management of the PV cells and have shown efficient performance for this purpose ( Salari et al., 2020 ).
Thermal energy storage ( TES) units are mainly used for storing cold or heat that is need to be utilized later at different temperatures, power, place, etc. [31], [32]. Compared with other kinds of storage, TES are cost-effective and have relatively simple structures and operating principles [33].
Thermal energy storage methods consist of sensible heat storage, which involves storing energy using temperature differences; latent heat storage, which utilizes
The simulation results showed that the operation strategy reduced soil thermal imbalance and power consumption and improved the system COP in cold regions. Qi [ 37 ] proposed an economic dispatch model of a multi-energy microgrid considering cross-seasonal heat balance to increase COP of GSHP.
A solar-assisted heat pump system, utilizing phase change heat storage, has been investigated for its potential to provide efficient heating in cold regions. •. The study
A hybrid compression-assisted sorption thermal battery is presented for solar energy utilization, which aims to solve the mismatch of heat storage and supply in cold region. Thermodynamic performance of the hybrid sorption thermal battery in cold region is analyzed by using MnCl 2 –SrCl 2 and MnCl 2 –CaCl 2 working pairs and then
As a result, converting the thermal energy of exhaust into hydrogen seems to be a perfectly appropriate solution based on the hydrogen storage system as long-term energy storage devices. The thermochemical methods to produce hydrogen from high to low temperature mainly include direct thermolysis of water, thermochemical cycles, and
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