Numerical simulation of solar parabolic trough collector with viscous dissipation in slits of arc-plug insertion

被引：6

作者：

Pandey, Mukundjee ^{[1
]}

Padhi, Biranchi Narayana ^{[1
]}

Mishra, Ipsita ^{[2
]}

机构：

[1] Int Inst Informat Technol, Dept Mech Engn, Bhubaneswar, India

[2] Centurion Univ Technol & Management, Dept Mech Engn, Bhubaneswar, India

来源：

SOLAR ENERGY | 2021年 / 230卷

关键词：

Parabolic trough collector; Modified arc-plug insertion; Syltherm-800; Viscous dissipation; Slits within the insertion; Tonatiuh ray tracing; HEAT-TRANSFER; TUBE RECEIVER; ABSORBER TUBE; PERFORMANCE; ENHANCEMENT; ENERGY; PIPE;

D O I：

10.1016/j.solener.2021.11.008

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper investigates the effect of slits within the arc-plug insert of the solar parabolic trough receiver (PTR). In order to predict the performance of the parabolic trough collector (PTC) with arc-plug slits within the absorber tube; two different variants of slits of 2 mm and 1 mm thicknesses are considered. Then, each of the variants of slits with different thicknesses are varied in terms of numbers of their occurrence in the arc-plug. The 2 mm thickness slits are varied in 5, 7, and 9 numbers with uniform space of separation between them in the arc-plug. While 1 mm thickness slits are varied from 11 to 13 in numbers and also maintaining uniform space of separation between them like in 2 mm thickness slits. The objective is to determine the effects of viscous dissipation within the slits of the arc-plug of PTR; and also, the optimized version of the slit with its numbers. It is found that 2 mm slits with 9 in numbers showed the highest value of thermal efficiency as compared to all other cases. The thermal efficiency (eta) of the PTC with arc-plug slits are seen to be about 1.642 times of conventional PTC; whereas, 1.309 times of arc-plug without slits. Therefore, it is always beneficial to use slits within inserts of PTCs for its performance enhancement; but, the selection of slit's thickness and its numbers plays a vital role in its application.

引用

页码：810 / 824

页数：15