Different PCMs for cold energy storage and PCM energy storage unit are reviewed. Abstract Owing to the limitations, such as low energy efficiency, high cost, and lack of environmental friendliness, of conventional tunnel cooling methods, a novel cold energy storage technology using phase change materials (PCMs) has been proposed to …
High energy density supercapattery empowered by efficient binder-free three-dimensional carbon coated NiCo2O4/Ni battery and Fe3S4@NiCo pseudocapacitive electrodes. Nilimapriyadarsini Swain, Saravanakumar Balasubramaniam, Ananthakumar Ramadoss. Article …
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 …
Most of the previous reviews focus on the application of the cold storage system [26], [27], [28], some reviews present the materials used for cold storage, especially the PCM [29], [30], [31].For example, Faraj et al. [32] presented the heating and cooling applications of phase change cold storage materials in buildings in terms of both passive …
With the worldwide dissemination of the "green development" concept and the advancement of China''s new rural construction, the sustainable development of rural residences has gained significant attention within the construction industry. This article focuses on large-scale prefabricated insulation block houses used in China''s cold …
Based on the field comparative test data of 51 days in a severe cold region (Fuxin, China), the heat storage and release performance of comparative greenhouses under typical sunny, cloudy and snowy conditions is discussed from five aspects: indoor
Climate change and anthropic activities increase the engineering risk in cold regions. This paper reviews the risk assessment of permafrost and constructions. Permafrost temperature, permafrost type, topography and geomorphology and vegetation were considered in former works. Permafrost risks and disaster zones were classified in …
In order to eliminate the influence of the east and west exterior walls and entrances on the test and to facilitate the verification and evaluation of PCMs for the influence of the traditional greenhouse heat storage and release performance, the greenhouse was divided into four greenhouses of which the east and the west both …
Considering China''s the large population, grain production and storage particularly play a vital role in its the national security. According to the white paper of "Food Security in China" published by the State Council of China [3], China''s annual grain production has remained above 650 × 10 6 t since 2015, and the grain storage capacity …
Yan [12] research seasonal storage found that in the northeast region cold energy storage time compared to other regions required less time. Zhang [ 13 ] used U-tubes for seasonal cold storage of soil in northeast China and used it as an air conditioning cold source to extract cold energy for low temperature utilization in …
1. Introduction Energy conservation and environmental protection are the major current problems in the world. Therefore, energy conservation in freeze-proof measures for cold-region tunnels needs to be considered. To meet the demands of economic and social ...
A long-term monitoring experiment was conducted to investigate the spatial and temporal variation rule of the slab track temperature in cold regions using statistical analysis methods. The sensitivity of track temperature to meteorological factors was analyzed using the finite element method. The study found that temperature, solar …
Cold thermal energy storage (CTES) is a cost-efficient storage approach for PV powered air-conditioning systems in tropical buildings. However, the feasibility and performance of different CTESs, including chilled water storage, ice storage, PCM cooling storage, and building thermal storage, are still unclear for off-grid PV air-conditioned …
Temperature reduction and energy-saving analysis in grain storage: Field application of radiative cooling technology to grain storage warehouse Author links open overlay panel Weiping Xu a, Sihong Gong a, Ningsheng Wang a, Wenbo Zhao a, Hongle Yin a, Ronggui Yang b, Xiaobo Yin c, Gang Tan d
Based novel field experiments on Tibet Plateau, the dynamic evolution law and its controlling factors of natural cold energy accumulation of the CRL are quantitatively figured out. Results show that the initially open CRL had a strong forced convection of air in the first two winters, while the cooling effect was failure after the third winter.
Temperature field analysis of a cold-region railway tunnel considering mechanical and train-induced ventilation effects Appl. Therm. Eng., 100 ( 2016 ), pp. 114 - 124 View PDF View article View in Scopus Google Scholar
In this study, an extended compressor energy conservation –compressor volumetric efficiency method was proposed to calculate the cooling capacity of each cold room in centralized cold storage. A cold storage system in Jiangsu Province was …
Located in the western city of Qiqihar City in Heilongjiang Province, the Nenjiang River Bridge on Qigan Highway bridges Qiqihar City and Gannan City, as shown in Fig. 2 (a).The box girder adopts a single-box, single-room design, with a …
Thus, the proposed novel tunnel cooling technology based on phase change cold energy storage units is feasible. Finally, the possible application of this technology in the Sichuan–Tibet railway ...
Tunnels located in cold regions are vulnerable to frost damage resulting from the special atmosphere, which directly threatens the safety of the tunnel structure and operation. Frost problems of tunnels in cold regions have not been fundamentally resolved. This paper reviews design theory and the frost mitigation techniques currently used in the …
Abstract In cold regions, the frequent occurrence of frost damage seriously affects the safety and stability of tunnel projects during construction and service time. Analyzing the formation mechanism of ice congestion in the drainage channel is …