Development and Economical Analysis of Innovative Parabolic Trough Collector Integrated Solar Still

IF 0.9 Q4 THERMODYNAMICS

International Journal of Thermodynamics Pub Date : 2023-11-06 DOI:10.5541/ijot.1313878

Milind PATİL, Ishan PATİL, Sanjay SHEKHAWAT, Neelkanth NİKAM

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Abstract

Experimental setup of the integrated parabolic trough collector (PTC) with solar still was developed. PTC was designed considering the solar geometry and the physical laws of parabolic shape and the concentrators. Test were conducted at the location with latitude 19.9975ON and longitude 73.7898OE. Theoretical analysis was done using ray tracing and engineering equation solver (EES) software while designing the system. PTC system was developed with dimensions of 1.5 m length, 1 m width and a concentration ratio (CR) of 21.22. Theoretical thermal efficiency was predicted as 48.1% whereas experimental average thermal efficiency is observed as 42.76%. The observed temperature difference between the vapor and the glass cover is about 17 °C and between ambient air and vapor is about 24.4 °C. Maximum water temperature in the conventional solar still was 64.6 °C where as for the PTC coupled solar still was 74.4 °C. PTC coupled solar still is having averagely 37% higher production rate. This has definitely added an advantage because of the higher energy absorption rate compared with the conventional solar still. PTC coupled solar still system has nearly 35% more heat absorption. Total embodied energy of the system is around 896.875 kWh. Total capital cost of the system is Rs. 41300/-. Total annual output of pure water is around 3 L/Day. Estimated energy payback period is around 2.29 years and the total carbon credit earned is Rs. 2165.38 per year.

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新型抛物槽集热器集成太阳能蒸馏器的研制及经济性分析

研制了太阳能蒸馏器集成抛物槽集热器(PTC)实验装置。PTC的设计考虑了太阳的几何形状和抛物线形状的物理规律以及聚光器。试验地点为北纬19.9975ON，东经73.7898OE。在系统设计过程中，利用光线追踪和工程方程求解软件进行了理论分析。研制的PTC体系尺寸为长1.5 m，宽1 m，浓度比(CR)为21.22。理论热效率为48.1%，实验平均热效率为42.76%。观察到的蒸汽和玻璃盖之间的温差约为17℃，周围空气和蒸汽之间的温差约为24.4℃。常规太阳蒸馏器的最高水温为64.6℃，PTC耦合太阳蒸馏器的最高水温为74.4℃。PTC耦合太阳能的平均生产率仍高出37%。这无疑增加了一个优势，因为与传统的太阳能蒸馏器相比，它的能量吸收率更高。PTC耦合太阳能蒸馏系统的吸热性能提高了近35%。系统总蕴含能约为896.875 kWh。该系统的总资本成本为41300卢比。纯净水年总产量约为3升/天。估计能源回收期约为2.29年，每年获得的碳信用总额为2165.38卢比。

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来源期刊

International Journal of Thermodynamics THERMODYNAMICS-

CiteScore

1.50

自引率

12.50%

发文量

期刊介绍： The purpose and scope of the International Journal of Thermodynamics is · to provide a forum for the publication of original theoretical and applied work in the field of thermodynamics as it relates to systems, states, processes, and both non-equilibrium and equilibrium phenomena at all temporal and spatial scales. · to provide a multidisciplinary and international platform for the dissemination to academia and industry of both scientific and engineering contributions, which touch upon a broad class of disciplines that are foundationally linked to thermodynamics and the methods and analyses derived there from. · to assess how both the first and particularly the second laws of thermodynamics touch upon these disciplines. · to highlight innovative & pioneer research in the field of thermodynamics in the following subjects (but not limited to the following, novel research in new areas are strongly suggested): o Entropy in thermodynamics and information theory. o Thermodynamics in process intensification. o Biothermodynamics (topics such as self-organization far from equilibrium etc.) o Thermodynamics of nonadditive systems. o Nonequilibrium thermal complex systems. o Sustainable design and thermodynamics. o Engineering thermodynamics. o Energy.