Absorber Diameter Effect on the Thermal Performance of Solar Steam Generator

Karima Ismail Amori; Rand Ahmed Adeeb

doi:10.31026/j.eng.2016.04.09

Article Details

Absorber Diameter Effect on the Thermal Performance of Solar Steam Generator

Authors:

Karima Ismail Amori | Rand Ahmed Adeeb

Publisher:

University of Baghdad

Journal:

Journal of Engineering Vol.22 Issue 4, pp.127-146

Document Type:

Article

Publication Date:

1/2016

Document Language:

English

Document ID (Org No.):

2001381056

pISSN:

2520-3339

DOI:

10.31026/j.eng.2016.04.09

Keywords:

Abstract:

 In this work, a convex lens concentrating solar collector is designed and manufactured locally by using 10 convex lenses (concentrator) of a diameter 10cm and one Copper absorber tube of a diameter 12.5mm and 1mm in thickness 1m length. Two axes manual Tracking system also constructed to track the sun continuously in two directions. The experiments are made on 17th of May 2015 in climatic conditions of Baghdad. The experimental data are fed to a computer program to solve the thermal performing equation, to find efficiency and actual useful energy. Then this data is used in numerical CFD software for three different absorber diameters (12.5 mm, 18.75 mm and 25 mm). From the results that obtained the maximum thermal efficiency for the collector of diameter 12.5mm equal to 82.3% is higher than that for the collector of 18.75 mm and 25 mm diameter. The maximum outlet temperature is found equal to (105ᵒC, 93.9ᵒC and 83.5ᵒC) for collector absorber diameter equal to (12.5 mm, 18.75mm and 25 mm) respectively. The maximum mass flow rate 0.53 kg/hr when the solar radiation intensity equal to 899 W/m2. The all-day collector efficiency varies with diameter and reaches to maximum value of (77.9%, 61.4% and 52.8) for collector diameter equal to (12.5 mm, 18.75mm and 25 mm) respectively.

Article Details

Absorber Diameter Effect on the Thermal Performance of Solar Steam Generator

Authors: Karima Ismail Amori | Rand Ahmed Adeeb

Publisher: University of Baghdad

Journal: Journal of Engineering Vol.22 Issue 4, pp.127-146

Document Type: Article

Publication Date: 1/2016

Document Language: English

Document ID (Org No.): 2001381056

pISSN: 2520-3339

DOI: 10.31026/j.eng.2016.04.09

Steam Generator

Solar

Thermal Performance

Issues

Authors:

Karima Ismail Amori | Rand Ahmed Adeeb

Publisher:

University of Baghdad

Journal:

Journal of Engineering Vol.22 Issue 4, pp.127-146

Document Type:

Article

Publication Date:

1/2016

Document Language:

English

Document ID (Org No.):

2001381056

pISSN:

2520-3339

DOI:

10.31026/j.eng.2016.04.09