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Title: Thermal performance of packed-bed solar air heaters

Abstract

This paper presents an experimental investigation of the enhancement of thermal performance of solar iar heater having its duct packed with blackened wire-screen matrices. Tests were conducted to cover wide range of influencing parameters including geometry of wire screens, mass flow rates and input solar energy fluxes under actual outdoor conditions. Effect of these parameters on the thermal performance has been investigated and results have been compared with those of plane (flat-plate) collectors. These tests provide useful data for rating wire-screen matrices packed-bed collectors based on thermal performance. It is observed that the performance of plane collector improves appreciably by packing its duct with blackened wire-screen matrices and this improvement is a strong function of bed and operating parameters.

Authors:
; ;  [1]
  1. Univ. of Roorkee (India)
Publication Date:
OSTI Identifier:
5085975
Resource Type:
Journal Article
Journal Name:
Solar Energy (Journal of Solar Energy Science and Engineering); (United States)
Additional Journal Information:
Journal Volume: 47:2; Journal ID: ISSN 0038-092X
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; SOLAR AIR HEATERS; PERFORMANCE; COMPARATIVE EVALUATIONS; FLAT PLATE COLLECTORS; FLOW RATE; GEOMETRY; OPERATION; OPTIMIZATION; PACKED BED; PARAMETRIC ANALYSIS; PHYSICAL PROPERTIES; SCREENS; SOLAR ABSORBERS; SOLAR COLLECTORS; SOLAR RADIATION; SPECIFICATIONS; THERMAL ANALYSIS; THERMODYNAMIC PROPERTIES; AIR HEATERS; EQUIPMENT; EVALUATION; HEATERS; MATHEMATICS; RADIATIONS; SOLAR EQUIPMENT; STELLAR RADIATION; 140901* - Solar Thermal Utilization- Space Heating & Cooling

Citation Formats

Sharma, S P, Saini, J S, and Varma, H K. Thermal performance of packed-bed solar air heaters. United States: N. p., 1991. Web. doi:10.1016/0038-092X(91)90035-U.
Sharma, S P, Saini, J S, & Varma, H K. Thermal performance of packed-bed solar air heaters. United States. https://doi.org/10.1016/0038-092X(91)90035-U
Sharma, S P, Saini, J S, and Varma, H K. 1991. "Thermal performance of packed-bed solar air heaters". United States. https://doi.org/10.1016/0038-092X(91)90035-U.
@article{osti_5085975,
title = {Thermal performance of packed-bed solar air heaters},
author = {Sharma, S P and Saini, J S and Varma, H K},
abstractNote = {This paper presents an experimental investigation of the enhancement of thermal performance of solar iar heater having its duct packed with blackened wire-screen matrices. Tests were conducted to cover wide range of influencing parameters including geometry of wire screens, mass flow rates and input solar energy fluxes under actual outdoor conditions. Effect of these parameters on the thermal performance has been investigated and results have been compared with those of plane (flat-plate) collectors. These tests provide useful data for rating wire-screen matrices packed-bed collectors based on thermal performance. It is observed that the performance of plane collector improves appreciably by packing its duct with blackened wire-screen matrices and this improvement is a strong function of bed and operating parameters.},
doi = {10.1016/0038-092X(91)90035-U},
url = {https://www.osti.gov/biblio/5085975}, journal = {Solar Energy (Journal of Solar Energy Science and Engineering); (United States)},
issn = {0038-092X},
number = ,
volume = 47:2,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}