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1. Using Taguchi method on combustion performance of a diesel engine with diesel/biodiesel blend and port-inducting H₂

Author:
Wu, Horng-Wen; Wu, Zhan-Yi
Source:
Applied energy 2013 v.104 pp. 362-370
ISSN:
0306-2619
Subject:
specific heat,   etc   ; Taguchi method; biodiesel; combustion; confidence interval; diesel engines; emissions; energy use and consumption; heat; hydrogen; prediction; smoke;     Show all 12 Subjects
Abstract:
... In this study, a Taguchi method is used to determine the optimal combinations of concentrations for a diesel engine with diesel/biodiesel blend using H₂ and cooled exhaust gas recirculation (EGR) at the inlet port. The authors determined the optimal operating factors for achieving good combustion performance, low NOX and smoke, at various engine loads and at 1500rpm. Furthermore, the combustion pe ...
DOI:
10.1016/j.apenergy.2012.10.055

2. Paraffin/diatomite composite phase change material incorporated cement-based composite for thermal energy storage

Author:
Xu, Biwan; Li, Zongjin
Source:
Applied energy 2013 v.105 pp. 229-237
ISSN:
0306-2619
Subject:
specific heat,   etc   ; Fourier transform infrared spectroscopy; cement; diatomaceous earth; differential scanning calorimetry; drying; energy; heat; melting point; scanning electron microscopes; scanning electron microscopy; shrinkage; thermal conductivity; thermal stability; thermogravimetry;     Show all 15 Subjects
Abstract:
... In this study, thermal energy storage cement-based composite (TESC) was developed by incorporating paraffin/diatomite (DP) composite phase change material (PCM). Paraffin/DP composite PCM was firstly fabricated at mix proportion (paraffin: DP) of 0.9:1.0. Scanning electron microscope (SEM) and Fourier transform infrared (FT-IR) results show that paraffin can be well impregnated into DP pores and h ...
DOI:
10.1016/j.apenergy.2013.01.005

3. Comparison of three different devices available in Spain to test thermal properties of building materials including phase change materials

Author:
Barreneche, Camila; de Gracia, Alvaro; Serrano, Susana; Elena Navarro, M.; Borreguero, Ana María; Inés Fernández, A.; Carmona, Manuel; Rodriguez, Juan Francisco; Cabeza, Luisa F.
Source:
Applied energy 2013 v.109 pp. 421-427
ISSN:
0306-2619
Subject:
specific heat,   etc   ; air; construction materials; gypsum; heat; microencapsulation; phase transition; porosity; thermal conductivity; Spain;     Show all 10 Subjects
Abstract:
... Thermal properties of materials used in building envelopes must be analysed in order to evaluate the thermal response of the constructive system. This thermal characterisation is a key point during the design phase of a building. However, thermal characterisation of constructive systems at laboratory scale is difficult to be carried out under real environment conditions. In this paper, three devic ...
DOI:
10.1016/j.apenergy.2013.02.061

4. Ideal thermal conductivity of a passive building wall: Determination method and understanding

Author:
Zhang, Yu; Zhang, Yinping; Wang, Xin; Chen, Qun
Source:
Applied energy 2013 v.112 pp. 967-974
ISSN:
0306-2619
Subject:
specific heat,   etc   ; buildings; cooling; energy efficiency; heat; temperature; thermal conductivity; China;     Show all 8 Subjects
Abstract:
... If buildings can change “clothes” according to seasons like human being, the energy consumption for their space heating or cooling will be saved greatly. For this purpose, the thermophysical properties of building external wall should be self-adjusted according to outdoor temperature. In this study, a method of determining the ideal thermal conductivity k(t) of external wall with constant volumetr ...
DOI:
10.1016/j.apenergy.2013.04.007