Concept

Chiller

Related publications (67)

Environomic multi-objective optimisation of a district heating network considering centralized and decentralized heat pumps

Daniel Favrat, Adam Molyneaux, Geoffrey Basil Leyland

Concern for the environment has been steadily growing in recent years, and it is becoming more common to include environmental impact and pollution costs in the design problem along with construction, investment and operating costs. To economically respond ...

2010

Falling-Film Evaporation On Tube Bundle With Plain And Enhanced Tubes-Part I: Experimental Results

John Richard Thome, Mathieu Habert

The complexities of two-phase flow and falling-film evaporation on a tube bundle present important challenges in the design of heat exchangers and the understanding of the physical phenomena taking place. The development of structured surfaces to enhance n ...

2010

Constructal tree-shaped microchannel networks for maximizing the saturated critical heat flux

John Richard Thome, Rémi Revellin

A constructaltree-shaped microchannel network for maximizing the saturated critical heat flux in a disc-shaped planar body has been investigated. n(0) radial channels touch the center and n(p) channels touch the periphery. Designs with no pairing level (n( ...

Elsevier2009

SMD pressure and flow sensors for industrial compressed air in LTCC technology

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Grégoire Boutinard Rouelle

In this work, we propose an SMD (surface mount device) pressure sensor in LTCC technology specially designed for standard industrial compressed air. It combines the measurement of pressure and temperature, with its integrated signal conditioning electronic ...

2009

Environomic multi-objective optimisation of a district heating network considering centralized and decentralized heat pumps

Daniel Favrat, Adam Molyneaux, Geoffrey Basil Leyland

2008

Screening for Refrigerant Blends in High-Temperature Lift Heat Pumps for Retrofit in Residential Heating

Daniel Favrat, Michele Zehnder

Providing heat pumps for the retrofit of fuel based boilers in residential heating, is a short or medium term challenge and a major opportunity for a substantial reduction of greenhouse gas emissions. While effective solutions for improved high temperature ...

2005

Experiences with Hermetic Scroll Compressors with Intermediate Vapor Injection Port in Heat Pumps for High Temperature Lift Heating Applications

Daniel Favrat, Michele Zehnder

In order to extend the application range of air-water heat pumps to high temperature residential heating systems, new small hermetic compressors with remodeled injection ports for vapor injection have successfully been tested in laboratory. The injection f ...

2005

Falling film evaporation on a single tube and on a tube bundle

Jean-François Roques

This study is a contribution for the improvement of horizontal falling film heat exchangers. This type of evaporator has the potential to be widely used in the petrochemical industry, for the sea water desalination, or in the large refrigeration systems. A ...

EPFL2004

Heat transfer and flow visualization of falling film condensation on tube arrays with plain and enhanced surfaces

Daniel Gstöhl

The tubes in shell-and-tube condensers, widely used in refrigeration and chemical process industries, are subjected to condensate inundation from the neighboring tubes. The aim of the present investigation is to study the effect of condensate inundation on ...

EPFL2004

Multi-Criteria Optimization of a District Cogeneration Plant Integrating a Solid Oxide Fuel Cell - Gas Turbine Combined Cycle, Heat Pumps and Chillers

Daniel Favrat, Meinrad Bürer

A simultaneous optimization of the design and operation of a district heating, cooling and power generation plant supplying a small stock of residential buildings has been undertaken with regards to cost and CO?2 emissions. The simulation of the plant cons ...

2003

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