Previous studies have shown that the crosswind reduces output power of a SCPP (solar chimney plant) with deflection plume at exit and separation wind flow there downstream. The present numerical investigation was focused on effect stack configuration performance SCPP. In this paper, prototype in Manzanares simulated, where Boussinesq approximation used for solving continuity, Navier–Stokes ener...

In the paper, experimental analyses of free convection heating transfer in a flat wavy-fin heat exchanger with dimensions 500 × mm were investigated. The reserch mainly included determining average flux and heat-transfer coefficient for two selected types finned exchangers. First, tests conducted exchangers without considering so-called ’chimney’ effect; these will be treated as reference studi...

For hundreds of years, chimneys have been swept with long steel brushes inserted manually into the chimney from the top and from the bottom. Chimney sweeps are exposed to soot, with concurrent exposure to sulfur dioxide and arsenic (Bagchi & Zimmerman, 1980). Soot is black particulate matter that is formed as a by-product of combustion or pyrolysis of organic (carbon-containing) materials, such...

Coal power stations as well as waste incinerators produce humid acid gases which may condense in industrial chimneys. These condensates can cause corrosion of chimney internal cladding which is made of stainless steel, nickel base alloys or non metallic materials. In the aim of polluting emission reduction and material optimal choice, it is necessary to determine and characterize all the phenom...

The roof solar chimney (RSC) is a low cost passive ventilation technique for reducing the energy consumption for cooling buildings. This study examines the performance and level of energy savings by simulating a detached home in four climates with RSC, cross-ventilation, and standard ventilation strategies. Each case was simulated in ESP-r for baseline and high efficiency construction, detached...

This paper proposes discussions for the (re)negotiation of responsibilities in performances that involve a collaboration between human and computer agents. Most of current research is human-hierarchical, leaving the machine the role of a mere tool at performer’s service. In this paper a more balanced distribution of responsibilities between the two agent is proposed. Chimney, a software develop...

Juxtarenal aortic aneurysms (JAA) account for approximately 15% of abdominal aortic aneurysms. Fenestrated endovascular aneurysm repair (FEVAR) and chimney endovascular aneurysm repair (CH-EVAR) are both effective methods to treat JAAs, but the comparative effectiveness of these treatment modalities is unclear. We searched the PubMed, Medline, Embase, and Cochrane databases to identify English ...