Refine
Year of publication
- 2023 (3)
- 2022 (14)
- 2021 (10)
- 2020 (8)
- 2019 (6)
- 2018 (4)
- 2017 (5)
- 2016 (1)
- 2015 (5)
- 2014 (4)
- 2013 (3)
- 2012 (13)
- 2011 (11)
- 2010 (10)
- 2009 (12)
- 2008 (7)
- 2007 (4)
- 2006 (3)
- 2004 (4)
- 2003 (2)
- 2002 (8)
- 2001 (1)
- 2000 (3)
- 1999 (5)
- 1998 (1)
- 1997 (2)
- 1996 (1)
- 1995 (1)
- 1994 (1)
- 1993 (6)
- 1992 (3)
- 1991 (3)
- 1990 (1)
Institute
- Solar-Institut Jülich (165) (remove)
Language
- English (165) (remove)
Document Type
- Conference Proceeding (110)
- Article (43)
- Part of a Book (11)
- Book (1)
Keywords
In this article, we describe the structure, the functioning, and the tests of parabolic trough solar thermal cooker (PSTC). This oven is designed to meet the needs of rural residents, including Urban, which requires stable cooking temperatures above 200 °C. The cooking by this cooker is based on the concentration of the sun's rays on a glass vacuum tube and heating of the oil circulate in a big tube, located inside the glass tube. Through two small tubes, associated with large tube, the heated oil, rise and heats the pot of cooking pot containing the food to be cooked (capacity of 5 kg). This cooker is designed in Germany and extensively tested in Morocco for use by the inhabitants who use wood from forests.
During a sunny day, having a maximum solar radiation around 720 W/m2 and temperature ambient around 26 °C, maximum temperatures recorded of the small tube, the large tube and the center of the pot are respectively: 370 °C, 270 °C and 260 °C. The cooking process with food at high (fries, ..), we show that the cooking oil temperature rises to 200 °C, after 1 h of heating, the cooking is done at a temperature of 120 °C for 20 min. These temperatures are practically stable following variations and decreases in the intensity of irradiance during the day. The comparison of these results with those of the literature shows an improvement of 30–50 % on the maximum value of the temperature with a heat storage that could reach 60 min of autonomy. All the results obtained show the good functioning of the PSTC and the feasibility of cooking food at high temperature (>200 °C).
Residential and commercial buildings account for more than one-third of global energy-related greenhouse gas emissions. Integrated multi-energy systems at the district level are a promising way to reduce greenhouse gas emissions by exploiting economies of scale and synergies between energy sources. Planning district energy systems comes with many challenges in an ever-changing environment. Computational modelling established itself as the state-of-the-art method for district energy system planning. Unfortunately, it is still cumbersome to combine standalone models to generate insights that surpass their original purpose. Ideally, planning processes could be solved by using modular tools that easily incorporate the variety of competing and complementing computational models. Our contribution is a vision for a collaborative development and application platform for multi-energy system planning tools at the district level. We present challenges of district energy system planning identified in the literature and evaluate whether this platform can help to overcome these challenges. Further, we propose a toolkit that represents the core technical elements of the platform. Lastly, we discuss community management and its relevance for the success of projects with collaboration and knowledge sharing at their core.