Publication

Experience with 3.9MWth Ammonia Heat Pumps.

Daniel Favrat
1995
Reports

Abstract

The paper describes two 3.9 MWth ammonia heat pumps of a District Heating plant which also includes two gas turbine cogeneration units. After nine years of reliable operation the heat pumps still show excellent coefficients of performance of above 4.1. This plant confirms the suitability of ammonia as a working fluid as well as the interest of the integration of cogeneration units and heat pumps interms of operational flexibility and rational use of fossil fuel with significant deductions of CO2 emissions.

Official source

https://infoscience.epfl.ch/entities/publication/6319733b-ab0a-4c8d-9b65-dc80865d337c

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Daniel Favrat
1995
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6319733b-ab0a-4c8d-9b65-dc80865d337c

About this result

Related concepts (32)

District heating

District heating (also known as heat networks or teleheating) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heat-only boiler stations, geothermal heating, heat pumps and central solar heating are also used, as well as heat waste from factories and nuclear power electricity generation.

Cogeneration

Cogeneration or combined heat and power (CHP) is the use of a heat engine or power station to generate electricity and useful heat at the same time. Cogeneration is a more efficient use of fuel or heat, because otherwise-wasted heat from electricity generation is put to some productive use. Combined heat and power (CHP) plants recover otherwise wasted thermal energy for heating. This is also called combined heat and power district heating. Small CHP plants are an example of decentralized energy.

Heat pump

A heat pump is a device that uses work to transfer heat from a cool space to a warm space by transferring thermal energy using a refrigeration cycle, cooling the cool space and warming the warm space. In cold weather a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in warm weather. As they transfer heat rather than generating heat, they are more energy-efficient than other ways of heating a home.