Thermal performance of evacuated tube heat pipe solar collector

Nandy Setiadi Djaya Putra, M. R. Kristian, R. David, K. Haliansyah, Bambang Ariantara

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The high fossil energy consumption not only causes the scarcity of energy but also raises problems of global warming. Increasing needs of fossil fuel could be reduced through the utilization of solar energy by using solar collectors. Indonesia has the abundant potential for solar energy, but non-renewable energy sources still dominate energy consumption. With heat pipe as passive heat transfer device, evacuated tube solar collector is expected to heat up water for industrial and home usage without external power supply needed to circulate water inside the solar collector. This research was conducted to determine the performance of heat pipe-based evacuated tube solar collector as solar water heater experimentally. The experiments were carried out using stainless steel screen mesh as a wick material, and water and Al2O3-water 0.1% nanofluid as working fluid, and applying inclination angles of 0°, 15°, 30°, and 45°. To analyze the heat absorbed and transferred by the prototype, water at 30°C was circulated through the condenser. A 150 Watt halogen lamp was used as sun simulator, and the prototype was covered by an insulation box to obtain a steady state condition with a minimum affection of ambient changes. Experimental results show that the usage of Al2O3-water 0.1% nanofluid at 30° inclination angle provides the highest thermal performance, which gives efficiency as high as 0.196 and thermal resistance as low as 5.32 °C/W. The use of nanofluid as working fluid enhances thermal performance due to high thermal conductivity of the working fluid. The increase of the inclination angle plays a role in the drainage of the condensate to the evaporator that leads to higher thermal performance until the optimal inclination angle is reached.

Original languageEnglish
Title of host publicationProceedings of the 3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015
EditorsTetsushi Biwa, Samsul Kamal, Hideaki Ohgaki, Jun Tanimoto, Chaiwat Nuthong, Adhika Widyaparaga, Keiichi N. Ishihara, Harwin Saptoadi, Jayan Sentanuhady, Deendarlianto, Zainal Alimuddin b. Zainal Alauddin, Iman Reksowardojo, Indarto, Yasuyuki Takata, Indro Pranoto
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413917
DOIs
Publication statusPublished - 3 Jun 2016
Event3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015 - Yogyakarta, Indonesia
Duration: 19 Nov 201520 Nov 2015

Publication series

NameAIP Conference Proceedings
Volume1737
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd AUN/SEED-NET Regional Conference on Energy Engineering and the 7th International Conference on Thermofluids, RCEnE/THERMOFLUID 2015
CountryIndonesia
CityYogyakarta
Period19/11/1520/11/15

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